--- /dev/null
+/*
+ * S/390 translation
+ *
+ * Copyright (c) 2009 Ulrich Hecht
+ * Copyright (c) 2010 Alexander Graf
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* #define DEBUG_INLINE_BRANCHES */
+#define S390X_DEBUG_DISAS
+/* #define S390X_DEBUG_DISAS_VERBOSE */
+
+#ifdef S390X_DEBUG_DISAS_VERBOSE
+# define LOG_DISAS(...) qemu_log(__VA_ARGS__)
+#else
+# define LOG_DISAS(...) do { } while (0)
+#endif
+
+#include "cpu.h"
+#include "disas/disas.h"
+#include "tcg-op.h"
+#include "qemu/log.h"
+#include "qemu/host-utils.h"
+#include "exec/cpu_ldst.h"
+
+/* global register indexes */
+static TCGv_ptr cpu_env;
+
+#include "exec/gen-icount.h"
+#include "exec/helper-proto.h"
+#include "exec/helper-gen.h"
+
+#include "trace-tcg.h"
+
+
+/* Information that (most) every instruction needs to manipulate. */
+typedef struct DisasContext DisasContext;
+typedef struct DisasInsn DisasInsn;
+typedef struct DisasFields DisasFields;
+
+struct DisasContext {
+ struct TranslationBlock *tb;
+ const DisasInsn *insn;
+ DisasFields *fields;
+ uint64_t pc, next_pc;
+ enum cc_op cc_op;
+ bool singlestep_enabled;
+};
+
+/* Information carried about a condition to be evaluated. */
+typedef struct {
+ TCGCond cond:8;
+ bool is_64;
+ bool g1;
+ bool g2;
+ union {
+ struct { TCGv_i64 a, b; } s64;
+ struct { TCGv_i32 a, b; } s32;
+ } u;
+} DisasCompare;
+
+#define DISAS_EXCP 4
+
+#ifdef DEBUG_INLINE_BRANCHES
+static uint64_t inline_branch_hit[CC_OP_MAX];
+static uint64_t inline_branch_miss[CC_OP_MAX];
+#endif
+
+static uint64_t pc_to_link_info(DisasContext *s, uint64_t pc)
+{
+ if (!(s->tb->flags & FLAG_MASK_64)) {
+ if (s->tb->flags & FLAG_MASK_32) {
+ return pc | 0x80000000;
+ }
+ }
+ return pc;
+}
+
+void s390_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf,
+ int flags)
+{
+ S390CPU *cpu = S390_CPU(cs);
+ CPUS390XState *env = &cpu->env;
+ int i;
+
+ if (env->cc_op > 3) {
+ cpu_fprintf(f, "PSW=mask %016" PRIx64 " addr %016" PRIx64 " cc %15s\n",
+ env->psw.mask, env->psw.addr, cc_name(env->cc_op));
+ } else {
+ cpu_fprintf(f, "PSW=mask %016" PRIx64 " addr %016" PRIx64 " cc %02x\n",
+ env->psw.mask, env->psw.addr, env->cc_op);
+ }
+
+ for (i = 0; i < 16; i++) {
+ cpu_fprintf(f, "R%02d=%016" PRIx64, i, env->regs[i]);
+ if ((i % 4) == 3) {
+ cpu_fprintf(f, "\n");
+ } else {
+ cpu_fprintf(f, " ");
+ }
+ }
+
+ for (i = 0; i < 16; i++) {
+ cpu_fprintf(f, "F%02d=%016" PRIx64, i, get_freg(env, i)->ll);
+ if ((i % 4) == 3) {
+ cpu_fprintf(f, "\n");
+ } else {
+ cpu_fprintf(f, " ");
+ }
+ }
+
+ for (i = 0; i < 32; i++) {
+ cpu_fprintf(f, "V%02d=%016" PRIx64 "%016" PRIx64, i,
+ env->vregs[i][0].ll, env->vregs[i][1].ll);
+ cpu_fprintf(f, (i % 2) ? " " : "\n");
+ }
+
+#ifndef CONFIG_USER_ONLY
+ for (i = 0; i < 16; i++) {
+ cpu_fprintf(f, "C%02d=%016" PRIx64, i, env->cregs[i]);
+ if ((i % 4) == 3) {
+ cpu_fprintf(f, "\n");
+ } else {
+ cpu_fprintf(f, " ");
+ }
+ }
+#endif
+
+#ifdef DEBUG_INLINE_BRANCHES
+ for (i = 0; i < CC_OP_MAX; i++) {
+ cpu_fprintf(f, " %15s = %10ld\t%10ld\n", cc_name(i),
+ inline_branch_miss[i], inline_branch_hit[i]);
+ }
+#endif
+
+ cpu_fprintf(f, "\n");
+}
+
+static TCGv_i64 psw_addr;
+static TCGv_i64 psw_mask;
+static TCGv_i64 gbea;
+
+static TCGv_i32 cc_op;
+static TCGv_i64 cc_src;
+static TCGv_i64 cc_dst;
+static TCGv_i64 cc_vr;
+
+static char cpu_reg_names[32][4];
+static TCGv_i64 regs[16];
+static TCGv_i64 fregs[16];
+
+static uint8_t gen_opc_cc_op[OPC_BUF_SIZE];
+
+void s390x_translate_init(void)
+{
+ int i;
+
+ cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
+ psw_addr = tcg_global_mem_new_i64(TCG_AREG0,
+ offsetof(CPUS390XState, psw.addr),
+ "psw_addr");
+ psw_mask = tcg_global_mem_new_i64(TCG_AREG0,
+ offsetof(CPUS390XState, psw.mask),
+ "psw_mask");
+ gbea = tcg_global_mem_new_i64(TCG_AREG0,
+ offsetof(CPUS390XState, gbea),
+ "gbea");
+
+ cc_op = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUS390XState, cc_op),
+ "cc_op");
+ cc_src = tcg_global_mem_new_i64(TCG_AREG0, offsetof(CPUS390XState, cc_src),
+ "cc_src");
+ cc_dst = tcg_global_mem_new_i64(TCG_AREG0, offsetof(CPUS390XState, cc_dst),
+ "cc_dst");
+ cc_vr = tcg_global_mem_new_i64(TCG_AREG0, offsetof(CPUS390XState, cc_vr),
+ "cc_vr");
+
+ for (i = 0; i < 16; i++) {
+ snprintf(cpu_reg_names[i], sizeof(cpu_reg_names[0]), "r%d", i);
+ regs[i] = tcg_global_mem_new(TCG_AREG0,
+ offsetof(CPUS390XState, regs[i]),
+ cpu_reg_names[i]);
+ }
+
+ for (i = 0; i < 16; i++) {
+ snprintf(cpu_reg_names[i + 16], sizeof(cpu_reg_names[0]), "f%d", i);
+ fregs[i] = tcg_global_mem_new(TCG_AREG0,
+ offsetof(CPUS390XState, vregs[i][0].d),
+ cpu_reg_names[i + 16]);
+ }
+}
+
+static TCGv_i64 load_reg(int reg)
+{
+ TCGv_i64 r = tcg_temp_new_i64();
+ tcg_gen_mov_i64(r, regs[reg]);
+ return r;
+}
+
+static TCGv_i64 load_freg32_i64(int reg)
+{
+ TCGv_i64 r = tcg_temp_new_i64();
+ tcg_gen_shri_i64(r, fregs[reg], 32);
+ return r;
+}
+
+static void store_reg(int reg, TCGv_i64 v)
+{
+ tcg_gen_mov_i64(regs[reg], v);
+}
+
+static void store_freg(int reg, TCGv_i64 v)
+{
+ tcg_gen_mov_i64(fregs[reg], v);
+}
+
+static void store_reg32_i64(int reg, TCGv_i64 v)
+{
+ /* 32 bit register writes keep the upper half */
+ tcg_gen_deposit_i64(regs[reg], regs[reg], v, 0, 32);
+}
+
+static void store_reg32h_i64(int reg, TCGv_i64 v)
+{
+ tcg_gen_deposit_i64(regs[reg], regs[reg], v, 32, 32);
+}
+
+static void store_freg32_i64(int reg, TCGv_i64 v)
+{
+ tcg_gen_deposit_i64(fregs[reg], fregs[reg], v, 32, 32);
+}
+
+static void return_low128(TCGv_i64 dest)
+{
+ tcg_gen_ld_i64(dest, cpu_env, offsetof(CPUS390XState, retxl));
+}
+
+static void update_psw_addr(DisasContext *s)
+{
+ /* psw.addr */
+ tcg_gen_movi_i64(psw_addr, s->pc);
+}
+
+static void per_branch(DisasContext *s, bool to_next)
+{
+#ifndef CONFIG_USER_ONLY
+ tcg_gen_movi_i64(gbea, s->pc);
+
+ if (s->tb->flags & FLAG_MASK_PER) {
+ TCGv_i64 next_pc = to_next ? tcg_const_i64(s->next_pc) : psw_addr;
+ gen_helper_per_branch(cpu_env, gbea, next_pc);
+ if (to_next) {
+ tcg_temp_free_i64(next_pc);
+ }
+ }
+#endif
+}
+
+static void per_branch_cond(DisasContext *s, TCGCond cond,
+ TCGv_i64 arg1, TCGv_i64 arg2)
+{
+#ifndef CONFIG_USER_ONLY
+ if (s->tb->flags & FLAG_MASK_PER) {
+ TCGLabel *lab = gen_new_label();
+ tcg_gen_brcond_i64(tcg_invert_cond(cond), arg1, arg2, lab);
+
+ tcg_gen_movi_i64(gbea, s->pc);
+ gen_helper_per_branch(cpu_env, gbea, psw_addr);
+
+ gen_set_label(lab);
+ } else {
+ TCGv_i64 pc = tcg_const_i64(s->pc);
+ tcg_gen_movcond_i64(cond, gbea, arg1, arg2, gbea, pc);
+ tcg_temp_free_i64(pc);
+ }
+#endif
+}
+
+static void per_breaking_event(DisasContext *s)
+{
+ tcg_gen_movi_i64(gbea, s->pc);
+}
+
+static void update_cc_op(DisasContext *s)
+{
+ if (s->cc_op != CC_OP_DYNAMIC && s->cc_op != CC_OP_STATIC) {
+ tcg_gen_movi_i32(cc_op, s->cc_op);
+ }
+}
+
+static void potential_page_fault(DisasContext *s)
+{
+ update_psw_addr(s);
+ update_cc_op(s);
+}
+
+static inline uint64_t ld_code2(CPUS390XState *env, uint64_t pc)
+{
+ return (uint64_t)cpu_lduw_code(env, pc);
+}
+
+static inline uint64_t ld_code4(CPUS390XState *env, uint64_t pc)
+{
+ return (uint64_t)(uint32_t)cpu_ldl_code(env, pc);
+}
+
+static int get_mem_index(DisasContext *s)
+{
+ switch (s->tb->flags & FLAG_MASK_ASC) {
+ case PSW_ASC_PRIMARY >> 32:
+ return 0;
+ case PSW_ASC_SECONDARY >> 32:
+ return 1;
+ case PSW_ASC_HOME >> 32:
+ return 2;
+ default:
+ tcg_abort();
+ break;
+ }
+}
+
+static void gen_exception(int excp)
+{
+ TCGv_i32 tmp = tcg_const_i32(excp);
+ gen_helper_exception(cpu_env, tmp);
+ tcg_temp_free_i32(tmp);
+}
+
+static void gen_program_exception(DisasContext *s, int code)
+{
+ TCGv_i32 tmp;
+
+ /* Remember what pgm exeption this was. */
+ tmp = tcg_const_i32(code);
+ tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUS390XState, int_pgm_code));
+ tcg_temp_free_i32(tmp);
+
+ tmp = tcg_const_i32(s->next_pc - s->pc);
+ tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUS390XState, int_pgm_ilen));
+ tcg_temp_free_i32(tmp);
+
+ /* Advance past instruction. */
+ s->pc = s->next_pc;
+ update_psw_addr(s);
+
+ /* Save off cc. */
+ update_cc_op(s);
+
+ /* Trigger exception. */
+ gen_exception(EXCP_PGM);
+}
+
+static inline void gen_illegal_opcode(DisasContext *s)
+{
+ gen_program_exception(s, PGM_OPERATION);
+}
+
+static inline void gen_trap(DisasContext *s)
+{
+ TCGv_i32 t;
+
+ /* Set DXC to 0xff. */
+ t = tcg_temp_new_i32();
+ tcg_gen_ld_i32(t, cpu_env, offsetof(CPUS390XState, fpc));
+ tcg_gen_ori_i32(t, t, 0xff00);
+ tcg_gen_st_i32(t, cpu_env, offsetof(CPUS390XState, fpc));
+ tcg_temp_free_i32(t);
+
+ gen_program_exception(s, PGM_DATA);
+}
+
+#ifndef CONFIG_USER_ONLY
+static void check_privileged(DisasContext *s)
+{
+ if (s->tb->flags & (PSW_MASK_PSTATE >> 32)) {
+ gen_program_exception(s, PGM_PRIVILEGED);
+ }
+}
+#endif
+
+static TCGv_i64 get_address(DisasContext *s, int x2, int b2, int d2)
+{
+ TCGv_i64 tmp = tcg_temp_new_i64();
+ bool need_31 = !(s->tb->flags & FLAG_MASK_64);
+
+ /* Note that d2 is limited to 20 bits, signed. If we crop negative
+ displacements early we create larger immedate addends. */
+
+ /* Note that addi optimizes the imm==0 case. */
+ if (b2 && x2) {
+ tcg_gen_add_i64(tmp, regs[b2], regs[x2]);
+ tcg_gen_addi_i64(tmp, tmp, d2);
+ } else if (b2) {
+ tcg_gen_addi_i64(tmp, regs[b2], d2);
+ } else if (x2) {
+ tcg_gen_addi_i64(tmp, regs[x2], d2);
+ } else {
+ if (need_31) {
+ d2 &= 0x7fffffff;
+ need_31 = false;
+ }
+ tcg_gen_movi_i64(tmp, d2);
+ }
+ if (need_31) {
+ tcg_gen_andi_i64(tmp, tmp, 0x7fffffff);
+ }
+
+ return tmp;
+}
+
+static inline bool live_cc_data(DisasContext *s)
+{
+ return (s->cc_op != CC_OP_DYNAMIC
+ && s->cc_op != CC_OP_STATIC
+ && s->cc_op > 3);
+}
+
+static inline void gen_op_movi_cc(DisasContext *s, uint32_t val)
+{
+ if (live_cc_data(s)) {
+ tcg_gen_discard_i64(cc_src);
+ tcg_gen_discard_i64(cc_dst);
+ tcg_gen_discard_i64(cc_vr);
+ }
+ s->cc_op = CC_OP_CONST0 + val;
+}
+
+static void gen_op_update1_cc_i64(DisasContext *s, enum cc_op op, TCGv_i64 dst)
+{
+ if (live_cc_data(s)) {
+ tcg_gen_discard_i64(cc_src);
+ tcg_gen_discard_i64(cc_vr);
+ }
+ tcg_gen_mov_i64(cc_dst, dst);
+ s->cc_op = op;
+}
+
+static void gen_op_update2_cc_i64(DisasContext *s, enum cc_op op, TCGv_i64 src,
+ TCGv_i64 dst)
+{
+ if (live_cc_data(s)) {
+ tcg_gen_discard_i64(cc_vr);
+ }
+ tcg_gen_mov_i64(cc_src, src);
+ tcg_gen_mov_i64(cc_dst, dst);
+ s->cc_op = op;
+}
+
+static void gen_op_update3_cc_i64(DisasContext *s, enum cc_op op, TCGv_i64 src,
+ TCGv_i64 dst, TCGv_i64 vr)
+{
+ tcg_gen_mov_i64(cc_src, src);
+ tcg_gen_mov_i64(cc_dst, dst);
+ tcg_gen_mov_i64(cc_vr, vr);
+ s->cc_op = op;
+}
+
+static void set_cc_nz_u64(DisasContext *s, TCGv_i64 val)
+{
+ gen_op_update1_cc_i64(s, CC_OP_NZ, val);
+}
+
+static void gen_set_cc_nz_f32(DisasContext *s, TCGv_i64 val)
+{
+ gen_op_update1_cc_i64(s, CC_OP_NZ_F32, val);
+}
+
+static void gen_set_cc_nz_f64(DisasContext *s, TCGv_i64 val)
+{
+ gen_op_update1_cc_i64(s, CC_OP_NZ_F64, val);
+}
+
+static void gen_set_cc_nz_f128(DisasContext *s, TCGv_i64 vh, TCGv_i64 vl)
+{
+ gen_op_update2_cc_i64(s, CC_OP_NZ_F128, vh, vl);
+}
+
+/* CC value is in env->cc_op */
+static void set_cc_static(DisasContext *s)
+{
+ if (live_cc_data(s)) {
+ tcg_gen_discard_i64(cc_src);
+ tcg_gen_discard_i64(cc_dst);
+ tcg_gen_discard_i64(cc_vr);
+ }
+ s->cc_op = CC_OP_STATIC;
+}
+
+/* calculates cc into cc_op */
+static void gen_op_calc_cc(DisasContext *s)
+{
+ TCGv_i32 local_cc_op;
+ TCGv_i64 dummy;
+
+ TCGV_UNUSED_I32(local_cc_op);
+ TCGV_UNUSED_I64(dummy);
+ switch (s->cc_op) {
+ default:
+ dummy = tcg_const_i64(0);
+ /* FALLTHRU */
+ case CC_OP_ADD_64:
+ case CC_OP_ADDU_64:
+ case CC_OP_ADDC_64:
+ case CC_OP_SUB_64:
+ case CC_OP_SUBU_64:
+ case CC_OP_SUBB_64:
+ case CC_OP_ADD_32:
+ case CC_OP_ADDU_32:
+ case CC_OP_ADDC_32:
+ case CC_OP_SUB_32:
+ case CC_OP_SUBU_32:
+ case CC_OP_SUBB_32:
+ local_cc_op = tcg_const_i32(s->cc_op);
+ break;
+ case CC_OP_CONST0:
+ case CC_OP_CONST1:
+ case CC_OP_CONST2:
+ case CC_OP_CONST3:
+ case CC_OP_STATIC:
+ case CC_OP_DYNAMIC:
+ break;
+ }
+
+ switch (s->cc_op) {
+ case CC_OP_CONST0:
+ case CC_OP_CONST1:
+ case CC_OP_CONST2:
+ case CC_OP_CONST3:
+ /* s->cc_op is the cc value */
+ tcg_gen_movi_i32(cc_op, s->cc_op - CC_OP_CONST0);
+ break;
+ case CC_OP_STATIC:
+ /* env->cc_op already is the cc value */
+ break;
+ case CC_OP_NZ:
+ case CC_OP_ABS_64:
+ case CC_OP_NABS_64:
+ case CC_OP_ABS_32:
+ case CC_OP_NABS_32:
+ case CC_OP_LTGT0_32:
+ case CC_OP_LTGT0_64:
+ case CC_OP_COMP_32:
+ case CC_OP_COMP_64:
+ case CC_OP_NZ_F32:
+ case CC_OP_NZ_F64:
+ case CC_OP_FLOGR:
+ /* 1 argument */
+ gen_helper_calc_cc(cc_op, cpu_env, local_cc_op, dummy, cc_dst, dummy);
+ break;
+ case CC_OP_ICM:
+ case CC_OP_LTGT_32:
+ case CC_OP_LTGT_64:
+ case CC_OP_LTUGTU_32:
+ case CC_OP_LTUGTU_64:
+ case CC_OP_TM_32:
+ case CC_OP_TM_64:
+ case CC_OP_SLA_32:
+ case CC_OP_SLA_64:
+ case CC_OP_NZ_F128:
+ /* 2 arguments */
+ gen_helper_calc_cc(cc_op, cpu_env, local_cc_op, cc_src, cc_dst, dummy);
+ break;
+ case CC_OP_ADD_64:
+ case CC_OP_ADDU_64:
+ case CC_OP_ADDC_64:
+ case CC_OP_SUB_64:
+ case CC_OP_SUBU_64:
+ case CC_OP_SUBB_64:
+ case CC_OP_ADD_32:
+ case CC_OP_ADDU_32:
+ case CC_OP_ADDC_32:
+ case CC_OP_SUB_32:
+ case CC_OP_SUBU_32:
+ case CC_OP_SUBB_32:
+ /* 3 arguments */
+ gen_helper_calc_cc(cc_op, cpu_env, local_cc_op, cc_src, cc_dst, cc_vr);
+ break;
+ case CC_OP_DYNAMIC:
+ /* unknown operation - assume 3 arguments and cc_op in env */
+ gen_helper_calc_cc(cc_op, cpu_env, cc_op, cc_src, cc_dst, cc_vr);
+ break;
+ default:
+ tcg_abort();
+ }
+
+ if (!TCGV_IS_UNUSED_I32(local_cc_op)) {
+ tcg_temp_free_i32(local_cc_op);
+ }
+ if (!TCGV_IS_UNUSED_I64(dummy)) {
+ tcg_temp_free_i64(dummy);
+ }
+
+ /* We now have cc in cc_op as constant */
+ set_cc_static(s);
+}
+
+static int use_goto_tb(DisasContext *s, uint64_t dest)
+{
+ /* NOTE: we handle the case where the TB spans two pages here */
+ return (((dest & TARGET_PAGE_MASK) == (s->tb->pc & TARGET_PAGE_MASK)
+ || (dest & TARGET_PAGE_MASK) == ((s->pc - 1) & TARGET_PAGE_MASK))
+ && !s->singlestep_enabled
+ && !(s->tb->cflags & CF_LAST_IO)
+ && !(s->tb->flags & FLAG_MASK_PER));
+}
+
+static void account_noninline_branch(DisasContext *s, int cc_op)
+{
+#ifdef DEBUG_INLINE_BRANCHES
+ inline_branch_miss[cc_op]++;
+#endif
+}
+
+static void account_inline_branch(DisasContext *s, int cc_op)
+{
+#ifdef DEBUG_INLINE_BRANCHES
+ inline_branch_hit[cc_op]++;
+#endif
+}
+
+/* Table of mask values to comparison codes, given a comparison as input.
+ For such, CC=3 should not be possible. */
+static const TCGCond ltgt_cond[16] = {
+ TCG_COND_NEVER, TCG_COND_NEVER, /* | | | x */
+ TCG_COND_GT, TCG_COND_GT, /* | | GT | x */
+ TCG_COND_LT, TCG_COND_LT, /* | LT | | x */
+ TCG_COND_NE, TCG_COND_NE, /* | LT | GT | x */
+ TCG_COND_EQ, TCG_COND_EQ, /* EQ | | | x */
+ TCG_COND_GE, TCG_COND_GE, /* EQ | | GT | x */
+ TCG_COND_LE, TCG_COND_LE, /* EQ | LT | | x */
+ TCG_COND_ALWAYS, TCG_COND_ALWAYS, /* EQ | LT | GT | x */
+};
+
+/* Table of mask values to comparison codes, given a logic op as input.
+ For such, only CC=0 and CC=1 should be possible. */
+static const TCGCond nz_cond[16] = {
+ TCG_COND_NEVER, TCG_COND_NEVER, /* | | x | x */
+ TCG_COND_NEVER, TCG_COND_NEVER,
+ TCG_COND_NE, TCG_COND_NE, /* | NE | x | x */
+ TCG_COND_NE, TCG_COND_NE,
+ TCG_COND_EQ, TCG_COND_EQ, /* EQ | | x | x */
+ TCG_COND_EQ, TCG_COND_EQ,
+ TCG_COND_ALWAYS, TCG_COND_ALWAYS, /* EQ | NE | x | x */
+ TCG_COND_ALWAYS, TCG_COND_ALWAYS,
+};
+
+/* Interpret MASK in terms of S->CC_OP, and fill in C with all the
+ details required to generate a TCG comparison. */
+static void disas_jcc(DisasContext *s, DisasCompare *c, uint32_t mask)
+{
+ TCGCond cond;
+ enum cc_op old_cc_op = s->cc_op;
+
+ if (mask == 15 || mask == 0) {
+ c->cond = (mask ? TCG_COND_ALWAYS : TCG_COND_NEVER);
+ c->u.s32.a = cc_op;
+ c->u.s32.b = cc_op;
+ c->g1 = c->g2 = true;
+ c->is_64 = false;
+ return;
+ }
+
+ /* Find the TCG condition for the mask + cc op. */
+ switch (old_cc_op) {
+ case CC_OP_LTGT0_32:
+ case CC_OP_LTGT0_64:
+ case CC_OP_LTGT_32:
+ case CC_OP_LTGT_64:
+ cond = ltgt_cond[mask];
+ if (cond == TCG_COND_NEVER) {
+ goto do_dynamic;
+ }
+ account_inline_branch(s, old_cc_op);
+ break;
+
+ case CC_OP_LTUGTU_32:
+ case CC_OP_LTUGTU_64:
+ cond = tcg_unsigned_cond(ltgt_cond[mask]);
+ if (cond == TCG_COND_NEVER) {
+ goto do_dynamic;
+ }
+ account_inline_branch(s, old_cc_op);
+ break;
+
+ case CC_OP_NZ:
+ cond = nz_cond[mask];
+ if (cond == TCG_COND_NEVER) {
+ goto do_dynamic;
+ }
+ account_inline_branch(s, old_cc_op);
+ break;
+
+ case CC_OP_TM_32:
+ case CC_OP_TM_64:
+ switch (mask) {
+ case 8:
+ cond = TCG_COND_EQ;
+ break;
+ case 4 | 2 | 1:
+ cond = TCG_COND_NE;
+ break;
+ default:
+ goto do_dynamic;
+ }
+ account_inline_branch(s, old_cc_op);
+ break;
+
+ case CC_OP_ICM:
+ switch (mask) {
+ case 8:
+ cond = TCG_COND_EQ;
+ break;
+ case 4 | 2 | 1:
+ case 4 | 2:
+ cond = TCG_COND_NE;
+ break;
+ default:
+ goto do_dynamic;
+ }
+ account_inline_branch(s, old_cc_op);
+ break;
+
+ case CC_OP_FLOGR:
+ switch (mask & 0xa) {
+ case 8: /* src == 0 -> no one bit found */
+ cond = TCG_COND_EQ;
+ break;
+ case 2: /* src != 0 -> one bit found */
+ cond = TCG_COND_NE;
+ break;
+ default:
+ goto do_dynamic;
+ }
+ account_inline_branch(s, old_cc_op);
+ break;
+
+ case CC_OP_ADDU_32:
+ case CC_OP_ADDU_64:
+ switch (mask) {
+ case 8 | 2: /* vr == 0 */
+ cond = TCG_COND_EQ;
+ break;
+ case 4 | 1: /* vr != 0 */
+ cond = TCG_COND_NE;
+ break;
+ case 8 | 4: /* no carry -> vr >= src */
+ cond = TCG_COND_GEU;
+ break;
+ case 2 | 1: /* carry -> vr < src */
+ cond = TCG_COND_LTU;
+ break;
+ default:
+ goto do_dynamic;
+ }
+ account_inline_branch(s, old_cc_op);
+ break;
+
+ case CC_OP_SUBU_32:
+ case CC_OP_SUBU_64:
+ /* Note that CC=0 is impossible; treat it as dont-care. */
+ switch (mask & 7) {
+ case 2: /* zero -> op1 == op2 */
+ cond = TCG_COND_EQ;
+ break;
+ case 4 | 1: /* !zero -> op1 != op2 */
+ cond = TCG_COND_NE;
+ break;
+ case 4: /* borrow (!carry) -> op1 < op2 */
+ cond = TCG_COND_LTU;
+ break;
+ case 2 | 1: /* !borrow (carry) -> op1 >= op2 */
+ cond = TCG_COND_GEU;
+ break;
+ default:
+ goto do_dynamic;
+ }
+ account_inline_branch(s, old_cc_op);
+ break;
+
+ default:
+ do_dynamic:
+ /* Calculate cc value. */
+ gen_op_calc_cc(s);
+ /* FALLTHRU */
+
+ case CC_OP_STATIC:
+ /* Jump based on CC. We'll load up the real cond below;
+ the assignment here merely avoids a compiler warning. */
+ account_noninline_branch(s, old_cc_op);
+ old_cc_op = CC_OP_STATIC;
+ cond = TCG_COND_NEVER;
+ break;
+ }
+
+ /* Load up the arguments of the comparison. */
+ c->is_64 = true;
+ c->g1 = c->g2 = false;
+ switch (old_cc_op) {
+ case CC_OP_LTGT0_32:
+ c->is_64 = false;
+ c->u.s32.a = tcg_temp_new_i32();
+ tcg_gen_trunc_i64_i32(c->u.s32.a, cc_dst);
+ c->u.s32.b = tcg_const_i32(0);
+ break;
+ case CC_OP_LTGT_32:
+ case CC_OP_LTUGTU_32:
+ case CC_OP_SUBU_32:
+ c->is_64 = false;
+ c->u.s32.a = tcg_temp_new_i32();
+ tcg_gen_trunc_i64_i32(c->u.s32.a, cc_src);
+ c->u.s32.b = tcg_temp_new_i32();
+ tcg_gen_trunc_i64_i32(c->u.s32.b, cc_dst);
+ break;
+
+ case CC_OP_LTGT0_64:
+ case CC_OP_NZ:
+ case CC_OP_FLOGR:
+ c->u.s64.a = cc_dst;
+ c->u.s64.b = tcg_const_i64(0);
+ c->g1 = true;
+ break;
+ case CC_OP_LTGT_64:
+ case CC_OP_LTUGTU_64:
+ case CC_OP_SUBU_64:
+ c->u.s64.a = cc_src;
+ c->u.s64.b = cc_dst;
+ c->g1 = c->g2 = true;
+ break;
+
+ case CC_OP_TM_32:
+ case CC_OP_TM_64:
+ case CC_OP_ICM:
+ c->u.s64.a = tcg_temp_new_i64();
+ c->u.s64.b = tcg_const_i64(0);
+ tcg_gen_and_i64(c->u.s64.a, cc_src, cc_dst);
+ break;
+
+ case CC_OP_ADDU_32:
+ c->is_64 = false;
+ c->u.s32.a = tcg_temp_new_i32();
+ c->u.s32.b = tcg_temp_new_i32();
+ tcg_gen_trunc_i64_i32(c->u.s32.a, cc_vr);
+ if (cond == TCG_COND_EQ || cond == TCG_COND_NE) {
+ tcg_gen_movi_i32(c->u.s32.b, 0);
+ } else {
+ tcg_gen_trunc_i64_i32(c->u.s32.b, cc_src);
+ }
+ break;
+
+ case CC_OP_ADDU_64:
+ c->u.s64.a = cc_vr;
+ c->g1 = true;
+ if (cond == TCG_COND_EQ || cond == TCG_COND_NE) {
+ c->u.s64.b = tcg_const_i64(0);
+ } else {
+ c->u.s64.b = cc_src;
+ c->g2 = true;
+ }
+ break;
+
+ case CC_OP_STATIC:
+ c->is_64 = false;
+ c->u.s32.a = cc_op;
+ c->g1 = true;
+ switch (mask) {
+ case 0x8 | 0x4 | 0x2: /* cc != 3 */
+ cond = TCG_COND_NE;
+ c->u.s32.b = tcg_const_i32(3);
+ break;
+ case 0x8 | 0x4 | 0x1: /* cc != 2 */
+ cond = TCG_COND_NE;
+ c->u.s32.b = tcg_const_i32(2);
+ break;
+ case 0x8 | 0x2 | 0x1: /* cc != 1 */
+ cond = TCG_COND_NE;
+ c->u.s32.b = tcg_const_i32(1);
+ break;
+ case 0x8 | 0x2: /* cc == 0 ||Â cc == 2 => (cc & 1) == 0 */
+ cond = TCG_COND_EQ;
+ c->g1 = false;
+ c->u.s32.a = tcg_temp_new_i32();
+ c->u.s32.b = tcg_const_i32(0);
+ tcg_gen_andi_i32(c->u.s32.a, cc_op, 1);
+ break;
+ case 0x8 | 0x4: /* cc < 2 */
+ cond = TCG_COND_LTU;
+ c->u.s32.b = tcg_const_i32(2);
+ break;
+ case 0x8: /* cc == 0 */
+ cond = TCG_COND_EQ;
+ c->u.s32.b = tcg_const_i32(0);
+ break;
+ case 0x4 | 0x2 | 0x1: /* cc != 0 */
+ cond = TCG_COND_NE;
+ c->u.s32.b = tcg_const_i32(0);
+ break;
+ case 0x4 | 0x1: /* cc == 1 ||Â cc == 3 => (cc & 1) != 0 */
+ cond = TCG_COND_NE;
+ c->g1 = false;
+ c->u.s32.a = tcg_temp_new_i32();
+ c->u.s32.b = tcg_const_i32(0);
+ tcg_gen_andi_i32(c->u.s32.a, cc_op, 1);
+ break;
+ case 0x4: /* cc == 1 */
+ cond = TCG_COND_EQ;
+ c->u.s32.b = tcg_const_i32(1);
+ break;
+ case 0x2 | 0x1: /* cc > 1 */
+ cond = TCG_COND_GTU;
+ c->u.s32.b = tcg_const_i32(1);
+ break;
+ case 0x2: /* cc == 2 */
+ cond = TCG_COND_EQ;
+ c->u.s32.b = tcg_const_i32(2);
+ break;
+ case 0x1: /* cc == 3 */
+ cond = TCG_COND_EQ;
+ c->u.s32.b = tcg_const_i32(3);
+ break;
+ default:
+ /* CC is masked by something else: (8 >> cc) & mask. */
+ cond = TCG_COND_NE;
+ c->g1 = false;
+ c->u.s32.a = tcg_const_i32(8);
+ c->u.s32.b = tcg_const_i32(0);
+ tcg_gen_shr_i32(c->u.s32.a, c->u.s32.a, cc_op);
+ tcg_gen_andi_i32(c->u.s32.a, c->u.s32.a, mask);
+ break;
+ }
+ break;
+
+ default:
+ abort();
+ }
+ c->cond = cond;
+}
+
+static void free_compare(DisasCompare *c)
+{
+ if (!c->g1) {
+ if (c->is_64) {
+ tcg_temp_free_i64(c->u.s64.a);
+ } else {
+ tcg_temp_free_i32(c->u.s32.a);
+ }
+ }
+ if (!c->g2) {
+ if (c->is_64) {
+ tcg_temp_free_i64(c->u.s64.b);
+ } else {
+ tcg_temp_free_i32(c->u.s32.b);
+ }
+ }
+}
+
+/* ====================================================================== */
+/* Define the insn format enumeration. */
+#define F0(N) FMT_##N,
+#define F1(N, X1) F0(N)
+#define F2(N, X1, X2) F0(N)
+#define F3(N, X1, X2, X3) F0(N)
+#define F4(N, X1, X2, X3, X4) F0(N)
+#define F5(N, X1, X2, X3, X4, X5) F0(N)
+
+typedef enum {
+#include "insn-format.def"
+} DisasFormat;
+
+#undef F0
+#undef F1
+#undef F2
+#undef F3
+#undef F4
+#undef F5
+
+/* Define a structure to hold the decoded fields. We'll store each inside
+ an array indexed by an enum. In order to conserve memory, we'll arrange
+ for fields that do not exist at the same time to overlap, thus the "C"
+ for compact. For checking purposes there is an "O" for original index
+ as well that will be applied to availability bitmaps. */
+
+enum DisasFieldIndexO {
+ FLD_O_r1,
+ FLD_O_r2,
+ FLD_O_r3,
+ FLD_O_m1,
+ FLD_O_m3,
+ FLD_O_m4,
+ FLD_O_b1,
+ FLD_O_b2,
+ FLD_O_b4,
+ FLD_O_d1,
+ FLD_O_d2,
+ FLD_O_d4,
+ FLD_O_x2,
+ FLD_O_l1,
+ FLD_O_l2,
+ FLD_O_i1,
+ FLD_O_i2,
+ FLD_O_i3,
+ FLD_O_i4,
+ FLD_O_i5
+};
+
+enum DisasFieldIndexC {
+ FLD_C_r1 = 0,
+ FLD_C_m1 = 0,
+ FLD_C_b1 = 0,
+ FLD_C_i1 = 0,
+
+ FLD_C_r2 = 1,
+ FLD_C_b2 = 1,
+ FLD_C_i2 = 1,
+
+ FLD_C_r3 = 2,
+ FLD_C_m3 = 2,
+ FLD_C_i3 = 2,
+
+ FLD_C_m4 = 3,
+ FLD_C_b4 = 3,
+ FLD_C_i4 = 3,
+ FLD_C_l1 = 3,
+
+ FLD_C_i5 = 4,
+ FLD_C_d1 = 4,
+
+ FLD_C_d2 = 5,
+
+ FLD_C_d4 = 6,
+ FLD_C_x2 = 6,
+ FLD_C_l2 = 6,
+
+ NUM_C_FIELD = 7
+};
+
+struct DisasFields {
+ uint64_t raw_insn;
+ unsigned op:8;
+ unsigned op2:8;
+ unsigned presentC:16;
+ unsigned int presentO;
+ int c[NUM_C_FIELD];
+};
+
+/* This is the way fields are to be accessed out of DisasFields. */
+#define have_field(S, F) have_field1((S), FLD_O_##F)
+#define get_field(S, F) get_field1((S), FLD_O_##F, FLD_C_##F)
+
+static bool have_field1(const DisasFields *f, enum DisasFieldIndexO c)
+{
+ return (f->presentO >> c) & 1;
+}
+
+static int get_field1(const DisasFields *f, enum DisasFieldIndexO o,
+ enum DisasFieldIndexC c)
+{
+ assert(have_field1(f, o));
+ return f->c[c];
+}
+
+/* Describe the layout of each field in each format. */
+typedef struct DisasField {
+ unsigned int beg:8;
+ unsigned int size:8;
+ unsigned int type:2;
+ unsigned int indexC:6;
+ enum DisasFieldIndexO indexO:8;
+} DisasField;
+
+typedef struct DisasFormatInfo {
+ DisasField op[NUM_C_FIELD];
+} DisasFormatInfo;
+
+#define R(N, B) { B, 4, 0, FLD_C_r##N, FLD_O_r##N }
+#define M(N, B) { B, 4, 0, FLD_C_m##N, FLD_O_m##N }
+#define BD(N, BB, BD) { BB, 4, 0, FLD_C_b##N, FLD_O_b##N }, \
+ { BD, 12, 0, FLD_C_d##N, FLD_O_d##N }
+#define BXD(N) { 16, 4, 0, FLD_C_b##N, FLD_O_b##N }, \
+ { 12, 4, 0, FLD_C_x##N, FLD_O_x##N }, \
+ { 20, 12, 0, FLD_C_d##N, FLD_O_d##N }
+#define BDL(N) { 16, 4, 0, FLD_C_b##N, FLD_O_b##N }, \
+ { 20, 20, 2, FLD_C_d##N, FLD_O_d##N }
+#define BXDL(N) { 16, 4, 0, FLD_C_b##N, FLD_O_b##N }, \
+ { 12, 4, 0, FLD_C_x##N, FLD_O_x##N }, \
+ { 20, 20, 2, FLD_C_d##N, FLD_O_d##N }
+#define I(N, B, S) { B, S, 1, FLD_C_i##N, FLD_O_i##N }
+#define L(N, B, S) { B, S, 0, FLD_C_l##N, FLD_O_l##N }
+
+#define F0(N) { { } },
+#define F1(N, X1) { { X1 } },
+#define F2(N, X1, X2) { { X1, X2 } },
+#define F3(N, X1, X2, X3) { { X1, X2, X3 } },
+#define F4(N, X1, X2, X3, X4) { { X1, X2, X3, X4 } },
+#define F5(N, X1, X2, X3, X4, X5) { { X1, X2, X3, X4, X5 } },
+
+static const DisasFormatInfo format_info[] = {
+#include "insn-format.def"
+};
+
+#undef F0
+#undef F1
+#undef F2
+#undef F3
+#undef F4
+#undef F5
+#undef R
+#undef M
+#undef BD
+#undef BXD
+#undef BDL
+#undef BXDL
+#undef I
+#undef L
+
+/* Generally, we'll extract operands into this structures, operate upon
+ them, and store them back. See the "in1", "in2", "prep", "wout" sets
+ of routines below for more details. */
+typedef struct {
+ bool g_out, g_out2, g_in1, g_in2;
+ TCGv_i64 out, out2, in1, in2;
+ TCGv_i64 addr1;
+} DisasOps;
+
+/* Instructions can place constraints on their operands, raising specification
+ exceptions if they are violated. To make this easy to automate, each "in1",
+ "in2", "prep", "wout" helper will have a SPEC_<name> define that equals one
+ of the following, or 0. To make this easy to document, we'll put the
+ SPEC_<name> defines next to <name>. */
+
+#define SPEC_r1_even 1
+#define SPEC_r2_even 2
+#define SPEC_r3_even 4
+#define SPEC_r1_f128 8
+#define SPEC_r2_f128 16
+
+/* Return values from translate_one, indicating the state of the TB. */
+typedef enum {
+ /* Continue the TB. */
+ NO_EXIT,
+ /* We have emitted one or more goto_tb. No fixup required. */
+ EXIT_GOTO_TB,
+ /* We are not using a goto_tb (for whatever reason), but have updated
+ the PC (for whatever reason), so there's no need to do it again on
+ exiting the TB. */
+ EXIT_PC_UPDATED,
+ /* We are exiting the TB, but have neither emitted a goto_tb, nor
+ updated the PC for the next instruction to be executed. */
+ EXIT_PC_STALE,
+ /* We are ending the TB with a noreturn function call, e.g. longjmp.
+ No following code will be executed. */
+ EXIT_NORETURN,
+} ExitStatus;
+
+typedef enum DisasFacility {
+ FAC_Z, /* zarch (default) */
+ FAC_CASS, /* compare and swap and store */
+ FAC_CASS2, /* compare and swap and store 2*/
+ FAC_DFP, /* decimal floating point */
+ FAC_DFPR, /* decimal floating point rounding */
+ FAC_DO, /* distinct operands */
+ FAC_EE, /* execute extensions */
+ FAC_EI, /* extended immediate */
+ FAC_FPE, /* floating point extension */
+ FAC_FPSSH, /* floating point support sign handling */
+ FAC_FPRGR, /* FPR-GR transfer */
+ FAC_GIE, /* general instructions extension */
+ FAC_HFP_MA, /* HFP multiply-and-add/subtract */
+ FAC_HW, /* high-word */
+ FAC_IEEEE_SIM, /* IEEE exception sumilation */
+ FAC_MIE, /* miscellaneous-instruction-extensions */
+ FAC_LAT, /* load-and-trap */
+ FAC_LOC, /* load/store on condition */
+ FAC_LD, /* long displacement */
+ FAC_PC, /* population count */
+ FAC_SCF, /* store clock fast */
+ FAC_SFLE, /* store facility list extended */
+ FAC_ILA, /* interlocked access facility 1 */
+} DisasFacility;
+
+struct DisasInsn {
+ unsigned opc:16;
+ DisasFormat fmt:8;
+ DisasFacility fac:8;
+ unsigned spec:8;
+
+ const char *name;
+
+ void (*help_in1)(DisasContext *, DisasFields *, DisasOps *);
+ void (*help_in2)(DisasContext *, DisasFields *, DisasOps *);
+ void (*help_prep)(DisasContext *, DisasFields *, DisasOps *);
+ void (*help_wout)(DisasContext *, DisasFields *, DisasOps *);
+ void (*help_cout)(DisasContext *, DisasOps *);
+ ExitStatus (*help_op)(DisasContext *, DisasOps *);
+
+ uint64_t data;
+};
+
+/* ====================================================================== */
+/* Miscellaneous helpers, used by several operations. */
+
+static void help_l2_shift(DisasContext *s, DisasFields *f,
+ DisasOps *o, int mask)
+{
+ int b2 = get_field(f, b2);
+ int d2 = get_field(f, d2);
+
+ if (b2 == 0) {
+ o->in2 = tcg_const_i64(d2 & mask);
+ } else {
+ o->in2 = get_address(s, 0, b2, d2);
+ tcg_gen_andi_i64(o->in2, o->in2, mask);
+ }
+}
+
+static ExitStatus help_goto_direct(DisasContext *s, uint64_t dest)
+{
+ if (dest == s->next_pc) {
+ per_branch(s, true);
+ return NO_EXIT;
+ }
+ if (use_goto_tb(s, dest)) {
+ update_cc_op(s);
+ per_breaking_event(s);
+ tcg_gen_goto_tb(0);
+ tcg_gen_movi_i64(psw_addr, dest);
+ tcg_gen_exit_tb((uintptr_t)s->tb);
+ return EXIT_GOTO_TB;
+ } else {
+ tcg_gen_movi_i64(psw_addr, dest);
+ per_branch(s, false);
+ return EXIT_PC_UPDATED;
+ }
+}
+
+static ExitStatus help_branch(DisasContext *s, DisasCompare *c,
+ bool is_imm, int imm, TCGv_i64 cdest)
+{
+ ExitStatus ret;
+ uint64_t dest = s->pc + 2 * imm;
+ TCGLabel *lab;
+
+ /* Take care of the special cases first. */
+ if (c->cond == TCG_COND_NEVER) {
+ ret = NO_EXIT;
+ goto egress;
+ }
+ if (is_imm) {
+ if (dest == s->next_pc) {
+ /* Branch to next. */
+ per_branch(s, true);
+ ret = NO_EXIT;
+ goto egress;
+ }
+ if (c->cond == TCG_COND_ALWAYS) {
+ ret = help_goto_direct(s, dest);
+ goto egress;
+ }
+ } else {
+ if (TCGV_IS_UNUSED_I64(cdest)) {
+ /* E.g. bcr %r0 -> no branch. */
+ ret = NO_EXIT;
+ goto egress;
+ }
+ if (c->cond == TCG_COND_ALWAYS) {
+ tcg_gen_mov_i64(psw_addr, cdest);
+ per_branch(s, false);
+ ret = EXIT_PC_UPDATED;
+ goto egress;
+ }
+ }
+
+ if (use_goto_tb(s, s->next_pc)) {
+ if (is_imm && use_goto_tb(s, dest)) {
+ /* Both exits can use goto_tb. */
+ update_cc_op(s);
+
+ lab = gen_new_label();
+ if (c->is_64) {
+ tcg_gen_brcond_i64(c->cond, c->u.s64.a, c->u.s64.b, lab);
+ } else {
+ tcg_gen_brcond_i32(c->cond, c->u.s32.a, c->u.s32.b, lab);
+ }
+
+ /* Branch not taken. */
+ tcg_gen_goto_tb(0);
+ tcg_gen_movi_i64(psw_addr, s->next_pc);
+ tcg_gen_exit_tb((uintptr_t)s->tb + 0);
+
+ /* Branch taken. */
+ gen_set_label(lab);
+ per_breaking_event(s);
+ tcg_gen_goto_tb(1);
+ tcg_gen_movi_i64(psw_addr, dest);
+ tcg_gen_exit_tb((uintptr_t)s->tb + 1);
+
+ ret = EXIT_GOTO_TB;
+ } else {
+ /* Fallthru can use goto_tb, but taken branch cannot. */
+ /* Store taken branch destination before the brcond. This
+ avoids having to allocate a new local temp to hold it.
+ We'll overwrite this in the not taken case anyway. */
+ if (!is_imm) {
+ tcg_gen_mov_i64(psw_addr, cdest);
+ }
+
+ lab = gen_new_label();
+ if (c->is_64) {
+ tcg_gen_brcond_i64(c->cond, c->u.s64.a, c->u.s64.b, lab);
+ } else {
+ tcg_gen_brcond_i32(c->cond, c->u.s32.a, c->u.s32.b, lab);
+ }
+
+ /* Branch not taken. */
+ update_cc_op(s);
+ tcg_gen_goto_tb(0);
+ tcg_gen_movi_i64(psw_addr, s->next_pc);
+ tcg_gen_exit_tb((uintptr_t)s->tb + 0);
+
+ gen_set_label(lab);
+ if (is_imm) {
+ tcg_gen_movi_i64(psw_addr, dest);
+ }
+ per_breaking_event(s);
+ ret = EXIT_PC_UPDATED;
+ }
+ } else {
+ /* Fallthru cannot use goto_tb. This by itself is vanishingly rare.
+ Most commonly we're single-stepping or some other condition that
+ disables all use of goto_tb. Just update the PC and exit. */
+
+ TCGv_i64 next = tcg_const_i64(s->next_pc);
+ if (is_imm) {
+ cdest = tcg_const_i64(dest);
+ }
+
+ if (c->is_64) {
+ tcg_gen_movcond_i64(c->cond, psw_addr, c->u.s64.a, c->u.s64.b,
+ cdest, next);
+ per_branch_cond(s, c->cond, c->u.s64.a, c->u.s64.b);
+ } else {
+ TCGv_i32 t0 = tcg_temp_new_i32();
+ TCGv_i64 t1 = tcg_temp_new_i64();
+ TCGv_i64 z = tcg_const_i64(0);
+ tcg_gen_setcond_i32(c->cond, t0, c->u.s32.a, c->u.s32.b);
+ tcg_gen_extu_i32_i64(t1, t0);
+ tcg_temp_free_i32(t0);
+ tcg_gen_movcond_i64(TCG_COND_NE, psw_addr, t1, z, cdest, next);
+ per_branch_cond(s, TCG_COND_NE, t1, z);
+ tcg_temp_free_i64(t1);
+ tcg_temp_free_i64(z);
+ }
+
+ if (is_imm) {
+ tcg_temp_free_i64(cdest);
+ }
+ tcg_temp_free_i64(next);
+
+ ret = EXIT_PC_UPDATED;
+ }
+
+ egress:
+ free_compare(c);
+ return ret;
+}
+
+/* ====================================================================== */
+/* The operations. These perform the bulk of the work for any insn,
+ usually after the operands have been loaded and output initialized. */
+
+static ExitStatus op_abs(DisasContext *s, DisasOps *o)
+{
+ TCGv_i64 z, n;
+ z = tcg_const_i64(0);
+ n = tcg_temp_new_i64();
+ tcg_gen_neg_i64(n, o->in2);
+ tcg_gen_movcond_i64(TCG_COND_LT, o->out, o->in2, z, n, o->in2);
+ tcg_temp_free_i64(n);
+ tcg_temp_free_i64(z);
+ return NO_EXIT;
+}
+
+static ExitStatus op_absf32(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_andi_i64(o->out, o->in2, 0x7fffffffull);
+ return NO_EXIT;
+}
+
+static ExitStatus op_absf64(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_andi_i64(o->out, o->in2, 0x7fffffffffffffffull);
+ return NO_EXIT;
+}
+
+static ExitStatus op_absf128(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_andi_i64(o->out, o->in1, 0x7fffffffffffffffull);
+ tcg_gen_mov_i64(o->out2, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_add(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_add_i64(o->out, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_addc(DisasContext *s, DisasOps *o)
+{
+ DisasCompare cmp;
+ TCGv_i64 carry;
+
+ tcg_gen_add_i64(o->out, o->in1, o->in2);
+
+ /* The carry flag is the msb of CC, therefore the branch mask that would
+ create that comparison is 3. Feeding the generated comparison to
+ setcond produces the carry flag that we desire. */
+ disas_jcc(s, &cmp, 3);
+ carry = tcg_temp_new_i64();
+ if (cmp.is_64) {
+ tcg_gen_setcond_i64(cmp.cond, carry, cmp.u.s64.a, cmp.u.s64.b);
+ } else {
+ TCGv_i32 t = tcg_temp_new_i32();
+ tcg_gen_setcond_i32(cmp.cond, t, cmp.u.s32.a, cmp.u.s32.b);
+ tcg_gen_extu_i32_i64(carry, t);
+ tcg_temp_free_i32(t);
+ }
+ free_compare(&cmp);
+
+ tcg_gen_add_i64(o->out, o->out, carry);
+ tcg_temp_free_i64(carry);
+ return NO_EXIT;
+}
+
+static ExitStatus op_aeb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_aeb(o->out, cpu_env, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_adb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_adb(o->out, cpu_env, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_axb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_axb(o->out, cpu_env, o->out, o->out2, o->in1, o->in2);
+ return_low128(o->out2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_and(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_and_i64(o->out, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_andi(DisasContext *s, DisasOps *o)
+{
+ int shift = s->insn->data & 0xff;
+ int size = s->insn->data >> 8;
+ uint64_t mask = ((1ull << size) - 1) << shift;
+
+ assert(!o->g_in2);
+ tcg_gen_shli_i64(o->in2, o->in2, shift);
+ tcg_gen_ori_i64(o->in2, o->in2, ~mask);
+ tcg_gen_and_i64(o->out, o->in1, o->in2);
+
+ /* Produce the CC from only the bits manipulated. */
+ tcg_gen_andi_i64(cc_dst, o->out, mask);
+ set_cc_nz_u64(s, cc_dst);
+ return NO_EXIT;
+}
+
+static ExitStatus op_bas(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_movi_i64(o->out, pc_to_link_info(s, s->next_pc));
+ if (!TCGV_IS_UNUSED_I64(o->in2)) {
+ tcg_gen_mov_i64(psw_addr, o->in2);
+ per_branch(s, false);
+ return EXIT_PC_UPDATED;
+ } else {
+ return NO_EXIT;
+ }
+}
+
+static ExitStatus op_basi(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_movi_i64(o->out, pc_to_link_info(s, s->next_pc));
+ return help_goto_direct(s, s->pc + 2 * get_field(s->fields, i2));
+}
+
+static ExitStatus op_bc(DisasContext *s, DisasOps *o)
+{
+ int m1 = get_field(s->fields, m1);
+ bool is_imm = have_field(s->fields, i2);
+ int imm = is_imm ? get_field(s->fields, i2) : 0;
+ DisasCompare c;
+
+ disas_jcc(s, &c, m1);
+ return help_branch(s, &c, is_imm, imm, o->in2);
+}
+
+static ExitStatus op_bct32(DisasContext *s, DisasOps *o)
+{
+ int r1 = get_field(s->fields, r1);
+ bool is_imm = have_field(s->fields, i2);
+ int imm = is_imm ? get_field(s->fields, i2) : 0;
+ DisasCompare c;
+ TCGv_i64 t;
+
+ c.cond = TCG_COND_NE;
+ c.is_64 = false;
+ c.g1 = false;
+ c.g2 = false;
+
+ t = tcg_temp_new_i64();
+ tcg_gen_subi_i64(t, regs[r1], 1);
+ store_reg32_i64(r1, t);
+ c.u.s32.a = tcg_temp_new_i32();
+ c.u.s32.b = tcg_const_i32(0);
+ tcg_gen_trunc_i64_i32(c.u.s32.a, t);
+ tcg_temp_free_i64(t);
+
+ return help_branch(s, &c, is_imm, imm, o->in2);
+}
+
+static ExitStatus op_bcth(DisasContext *s, DisasOps *o)
+{
+ int r1 = get_field(s->fields, r1);
+ int imm = get_field(s->fields, i2);
+ DisasCompare c;
+ TCGv_i64 t;
+
+ c.cond = TCG_COND_NE;
+ c.is_64 = false;
+ c.g1 = false;
+ c.g2 = false;
+
+ t = tcg_temp_new_i64();
+ tcg_gen_shri_i64(t, regs[r1], 32);
+ tcg_gen_subi_i64(t, t, 1);
+ store_reg32h_i64(r1, t);
+ c.u.s32.a = tcg_temp_new_i32();
+ c.u.s32.b = tcg_const_i32(0);
+ tcg_gen_trunc_i64_i32(c.u.s32.a, t);
+ tcg_temp_free_i64(t);
+
+ return help_branch(s, &c, 1, imm, o->in2);
+}
+
+static ExitStatus op_bct64(DisasContext *s, DisasOps *o)
+{
+ int r1 = get_field(s->fields, r1);
+ bool is_imm = have_field(s->fields, i2);
+ int imm = is_imm ? get_field(s->fields, i2) : 0;
+ DisasCompare c;
+
+ c.cond = TCG_COND_NE;
+ c.is_64 = true;
+ c.g1 = true;
+ c.g2 = false;
+
+ tcg_gen_subi_i64(regs[r1], regs[r1], 1);
+ c.u.s64.a = regs[r1];
+ c.u.s64.b = tcg_const_i64(0);
+
+ return help_branch(s, &c, is_imm, imm, o->in2);
+}
+
+static ExitStatus op_bx32(DisasContext *s, DisasOps *o)
+{
+ int r1 = get_field(s->fields, r1);
+ int r3 = get_field(s->fields, r3);
+ bool is_imm = have_field(s->fields, i2);
+ int imm = is_imm ? get_field(s->fields, i2) : 0;
+ DisasCompare c;
+ TCGv_i64 t;
+
+ c.cond = (s->insn->data ? TCG_COND_LE : TCG_COND_GT);
+ c.is_64 = false;
+ c.g1 = false;
+ c.g2 = false;
+
+ t = tcg_temp_new_i64();
+ tcg_gen_add_i64(t, regs[r1], regs[r3]);
+ c.u.s32.a = tcg_temp_new_i32();
+ c.u.s32.b = tcg_temp_new_i32();
+ tcg_gen_trunc_i64_i32(c.u.s32.a, t);
+ tcg_gen_trunc_i64_i32(c.u.s32.b, regs[r3 | 1]);
+ store_reg32_i64(r1, t);
+ tcg_temp_free_i64(t);
+
+ return help_branch(s, &c, is_imm, imm, o->in2);
+}
+
+static ExitStatus op_bx64(DisasContext *s, DisasOps *o)
+{
+ int r1 = get_field(s->fields, r1);
+ int r3 = get_field(s->fields, r3);
+ bool is_imm = have_field(s->fields, i2);
+ int imm = is_imm ? get_field(s->fields, i2) : 0;
+ DisasCompare c;
+
+ c.cond = (s->insn->data ? TCG_COND_LE : TCG_COND_GT);
+ c.is_64 = true;
+
+ if (r1 == (r3 | 1)) {
+ c.u.s64.b = load_reg(r3 | 1);
+ c.g2 = false;
+ } else {
+ c.u.s64.b = regs[r3 | 1];
+ c.g2 = true;
+ }
+
+ tcg_gen_add_i64(regs[r1], regs[r1], regs[r3]);
+ c.u.s64.a = regs[r1];
+ c.g1 = true;
+
+ return help_branch(s, &c, is_imm, imm, o->in2);
+}
+
+static ExitStatus op_cj(DisasContext *s, DisasOps *o)
+{
+ int imm, m3 = get_field(s->fields, m3);
+ bool is_imm;
+ DisasCompare c;
+
+ c.cond = ltgt_cond[m3];
+ if (s->insn->data) {
+ c.cond = tcg_unsigned_cond(c.cond);
+ }
+ c.is_64 = c.g1 = c.g2 = true;
+ c.u.s64.a = o->in1;
+ c.u.s64.b = o->in2;
+
+ is_imm = have_field(s->fields, i4);
+ if (is_imm) {
+ imm = get_field(s->fields, i4);
+ } else {
+ imm = 0;
+ o->out = get_address(s, 0, get_field(s->fields, b4),
+ get_field(s->fields, d4));
+ }
+
+ return help_branch(s, &c, is_imm, imm, o->out);
+}
+
+static ExitStatus op_ceb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_ceb(cc_op, cpu_env, o->in1, o->in2);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_cdb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_cdb(cc_op, cpu_env, o->in1, o->in2);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_cxb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_cxb(cc_op, cpu_env, o->out, o->out2, o->in1, o->in2);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_cfeb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ gen_helper_cfeb(o->out, cpu_env, o->in2, m3);
+ tcg_temp_free_i32(m3);
+ gen_set_cc_nz_f32(s, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_cfdb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ gen_helper_cfdb(o->out, cpu_env, o->in2, m3);
+ tcg_temp_free_i32(m3);
+ gen_set_cc_nz_f64(s, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_cfxb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ gen_helper_cfxb(o->out, cpu_env, o->in1, o->in2, m3);
+ tcg_temp_free_i32(m3);
+ gen_set_cc_nz_f128(s, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_cgeb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ gen_helper_cgeb(o->out, cpu_env, o->in2, m3);
+ tcg_temp_free_i32(m3);
+ gen_set_cc_nz_f32(s, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_cgdb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ gen_helper_cgdb(o->out, cpu_env, o->in2, m3);
+ tcg_temp_free_i32(m3);
+ gen_set_cc_nz_f64(s, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_cgxb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ gen_helper_cgxb(o->out, cpu_env, o->in1, o->in2, m3);
+ tcg_temp_free_i32(m3);
+ gen_set_cc_nz_f128(s, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_clfeb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ gen_helper_clfeb(o->out, cpu_env, o->in2, m3);
+ tcg_temp_free_i32(m3);
+ gen_set_cc_nz_f32(s, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_clfdb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ gen_helper_clfdb(o->out, cpu_env, o->in2, m3);
+ tcg_temp_free_i32(m3);
+ gen_set_cc_nz_f64(s, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_clfxb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ gen_helper_clfxb(o->out, cpu_env, o->in1, o->in2, m3);
+ tcg_temp_free_i32(m3);
+ gen_set_cc_nz_f128(s, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_clgeb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ gen_helper_clgeb(o->out, cpu_env, o->in2, m3);
+ tcg_temp_free_i32(m3);
+ gen_set_cc_nz_f32(s, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_clgdb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ gen_helper_clgdb(o->out, cpu_env, o->in2, m3);
+ tcg_temp_free_i32(m3);
+ gen_set_cc_nz_f64(s, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_clgxb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ gen_helper_clgxb(o->out, cpu_env, o->in1, o->in2, m3);
+ tcg_temp_free_i32(m3);
+ gen_set_cc_nz_f128(s, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_cegb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ gen_helper_cegb(o->out, cpu_env, o->in2, m3);
+ tcg_temp_free_i32(m3);
+ return NO_EXIT;
+}
+
+static ExitStatus op_cdgb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ gen_helper_cdgb(o->out, cpu_env, o->in2, m3);
+ tcg_temp_free_i32(m3);
+ return NO_EXIT;
+}
+
+static ExitStatus op_cxgb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ gen_helper_cxgb(o->out, cpu_env, o->in2, m3);
+ tcg_temp_free_i32(m3);
+ return_low128(o->out2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_celgb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ gen_helper_celgb(o->out, cpu_env, o->in2, m3);
+ tcg_temp_free_i32(m3);
+ return NO_EXIT;
+}
+
+static ExitStatus op_cdlgb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ gen_helper_cdlgb(o->out, cpu_env, o->in2, m3);
+ tcg_temp_free_i32(m3);
+ return NO_EXIT;
+}
+
+static ExitStatus op_cxlgb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ gen_helper_cxlgb(o->out, cpu_env, o->in2, m3);
+ tcg_temp_free_i32(m3);
+ return_low128(o->out2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_cksm(DisasContext *s, DisasOps *o)
+{
+ int r2 = get_field(s->fields, r2);
+ TCGv_i64 len = tcg_temp_new_i64();
+
+ potential_page_fault(s);
+ gen_helper_cksm(len, cpu_env, o->in1, o->in2, regs[r2 + 1]);
+ set_cc_static(s);
+ return_low128(o->out);
+
+ tcg_gen_add_i64(regs[r2], regs[r2], len);
+ tcg_gen_sub_i64(regs[r2 + 1], regs[r2 + 1], len);
+ tcg_temp_free_i64(len);
+
+ return NO_EXIT;
+}
+
+static ExitStatus op_clc(DisasContext *s, DisasOps *o)
+{
+ int l = get_field(s->fields, l1);
+ TCGv_i32 vl;
+
+ switch (l + 1) {
+ case 1:
+ tcg_gen_qemu_ld8u(cc_src, o->addr1, get_mem_index(s));
+ tcg_gen_qemu_ld8u(cc_dst, o->in2, get_mem_index(s));
+ break;
+ case 2:
+ tcg_gen_qemu_ld16u(cc_src, o->addr1, get_mem_index(s));
+ tcg_gen_qemu_ld16u(cc_dst, o->in2, get_mem_index(s));
+ break;
+ case 4:
+ tcg_gen_qemu_ld32u(cc_src, o->addr1, get_mem_index(s));
+ tcg_gen_qemu_ld32u(cc_dst, o->in2, get_mem_index(s));
+ break;
+ case 8:
+ tcg_gen_qemu_ld64(cc_src, o->addr1, get_mem_index(s));
+ tcg_gen_qemu_ld64(cc_dst, o->in2, get_mem_index(s));
+ break;
+ default:
+ potential_page_fault(s);
+ vl = tcg_const_i32(l);
+ gen_helper_clc(cc_op, cpu_env, vl, o->addr1, o->in2);
+ tcg_temp_free_i32(vl);
+ set_cc_static(s);
+ return NO_EXIT;
+ }
+ gen_op_update2_cc_i64(s, CC_OP_LTUGTU_64, cc_src, cc_dst);
+ return NO_EXIT;
+}
+
+static ExitStatus op_clcle(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
+ TCGv_i32 r3 = tcg_const_i32(get_field(s->fields, r3));
+ potential_page_fault(s);
+ gen_helper_clcle(cc_op, cpu_env, r1, o->in2, r3);
+ tcg_temp_free_i32(r1);
+ tcg_temp_free_i32(r3);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_clm(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ TCGv_i32 t1 = tcg_temp_new_i32();
+ tcg_gen_trunc_i64_i32(t1, o->in1);
+ potential_page_fault(s);
+ gen_helper_clm(cc_op, cpu_env, t1, m3, o->in2);
+ set_cc_static(s);
+ tcg_temp_free_i32(t1);
+ tcg_temp_free_i32(m3);
+ return NO_EXIT;
+}
+
+static ExitStatus op_clst(DisasContext *s, DisasOps *o)
+{
+ potential_page_fault(s);
+ gen_helper_clst(o->in1, cpu_env, regs[0], o->in1, o->in2);
+ set_cc_static(s);
+ return_low128(o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_cps(DisasContext *s, DisasOps *o)
+{
+ TCGv_i64 t = tcg_temp_new_i64();
+ tcg_gen_andi_i64(t, o->in1, 0x8000000000000000ull);
+ tcg_gen_andi_i64(o->out, o->in2, 0x7fffffffffffffffull);
+ tcg_gen_or_i64(o->out, o->out, t);
+ tcg_temp_free_i64(t);
+ return NO_EXIT;
+}
+
+static ExitStatus op_cs(DisasContext *s, DisasOps *o)
+{
+ /* FIXME: needs an atomic solution for CONFIG_USER_ONLY. */
+ int d2 = get_field(s->fields, d2);
+ int b2 = get_field(s->fields, b2);
+ int is_64 = s->insn->data;
+ TCGv_i64 addr, mem, cc, z;
+
+ /* Note that in1 = R3 (new value) and
+ in2 = (zero-extended) R1 (expected value). */
+
+ /* Load the memory into the (temporary) output. While the PoO only talks
+ about moving the memory to R1 on inequality, if we include equality it
+ means that R1 is equal to the memory in all conditions. */
+ addr = get_address(s, 0, b2, d2);
+ if (is_64) {
+ tcg_gen_qemu_ld64(o->out, addr, get_mem_index(s));
+ } else {
+ tcg_gen_qemu_ld32u(o->out, addr, get_mem_index(s));
+ }
+
+ /* Are the memory and expected values (un)equal? Note that this setcond
+ produces the output CC value, thus the NE sense of the test. */
+ cc = tcg_temp_new_i64();
+ tcg_gen_setcond_i64(TCG_COND_NE, cc, o->in2, o->out);
+
+ /* If the memory and expected values are equal (CC==0), copy R3 to MEM.
+ Recall that we are allowed to unconditionally issue the store (and
+ thus any possible write trap), so (re-)store the original contents
+ of MEM in case of inequality. */
+ z = tcg_const_i64(0);
+ mem = tcg_temp_new_i64();
+ tcg_gen_movcond_i64(TCG_COND_EQ, mem, cc, z, o->in1, o->out);
+ if (is_64) {
+ tcg_gen_qemu_st64(mem, addr, get_mem_index(s));
+ } else {
+ tcg_gen_qemu_st32(mem, addr, get_mem_index(s));
+ }
+ tcg_temp_free_i64(z);
+ tcg_temp_free_i64(mem);
+ tcg_temp_free_i64(addr);
+
+ /* Store CC back to cc_op. Wait until after the store so that any
+ exception gets the old cc_op value. */
+ tcg_gen_trunc_i64_i32(cc_op, cc);
+ tcg_temp_free_i64(cc);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_cdsg(DisasContext *s, DisasOps *o)
+{
+ /* FIXME: needs an atomic solution for CONFIG_USER_ONLY. */
+ int r1 = get_field(s->fields, r1);
+ int r3 = get_field(s->fields, r3);
+ int d2 = get_field(s->fields, d2);
+ int b2 = get_field(s->fields, b2);
+ TCGv_i64 addrh, addrl, memh, meml, outh, outl, cc, z;
+
+ /* Note that R1:R1+1 = expected value and R3:R3+1 = new value. */
+
+ addrh = get_address(s, 0, b2, d2);
+ addrl = get_address(s, 0, b2, d2 + 8);
+ outh = tcg_temp_new_i64();
+ outl = tcg_temp_new_i64();
+
+ tcg_gen_qemu_ld64(outh, addrh, get_mem_index(s));
+ tcg_gen_qemu_ld64(outl, addrl, get_mem_index(s));
+
+ /* Fold the double-word compare with arithmetic. */
+ cc = tcg_temp_new_i64();
+ z = tcg_temp_new_i64();
+ tcg_gen_xor_i64(cc, outh, regs[r1]);
+ tcg_gen_xor_i64(z, outl, regs[r1 + 1]);
+ tcg_gen_or_i64(cc, cc, z);
+ tcg_gen_movi_i64(z, 0);
+ tcg_gen_setcond_i64(TCG_COND_NE, cc, cc, z);
+
+ memh = tcg_temp_new_i64();
+ meml = tcg_temp_new_i64();
+ tcg_gen_movcond_i64(TCG_COND_EQ, memh, cc, z, regs[r3], outh);
+ tcg_gen_movcond_i64(TCG_COND_EQ, meml, cc, z, regs[r3 + 1], outl);
+ tcg_temp_free_i64(z);
+
+ tcg_gen_qemu_st64(memh, addrh, get_mem_index(s));
+ tcg_gen_qemu_st64(meml, addrl, get_mem_index(s));
+ tcg_temp_free_i64(memh);
+ tcg_temp_free_i64(meml);
+ tcg_temp_free_i64(addrh);
+ tcg_temp_free_i64(addrl);
+
+ /* Save back state now that we've passed all exceptions. */
+ tcg_gen_mov_i64(regs[r1], outh);
+ tcg_gen_mov_i64(regs[r1 + 1], outl);
+ tcg_gen_trunc_i64_i32(cc_op, cc);
+ tcg_temp_free_i64(outh);
+ tcg_temp_free_i64(outl);
+ tcg_temp_free_i64(cc);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+#ifndef CONFIG_USER_ONLY
+static ExitStatus op_csp(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
+ check_privileged(s);
+ gen_helper_csp(cc_op, cpu_env, r1, o->in2);
+ tcg_temp_free_i32(r1);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+#endif
+
+static ExitStatus op_cvd(DisasContext *s, DisasOps *o)
+{
+ TCGv_i64 t1 = tcg_temp_new_i64();
+ TCGv_i32 t2 = tcg_temp_new_i32();
+ tcg_gen_trunc_i64_i32(t2, o->in1);
+ gen_helper_cvd(t1, t2);
+ tcg_temp_free_i32(t2);
+ tcg_gen_qemu_st64(t1, o->in2, get_mem_index(s));
+ tcg_temp_free_i64(t1);
+ return NO_EXIT;
+}
+
+static ExitStatus op_ct(DisasContext *s, DisasOps *o)
+{
+ int m3 = get_field(s->fields, m3);
+ TCGLabel *lab = gen_new_label();
+ TCGCond c;
+
+ c = tcg_invert_cond(ltgt_cond[m3]);
+ if (s->insn->data) {
+ c = tcg_unsigned_cond(c);
+ }
+ tcg_gen_brcond_i64(c, o->in1, o->in2, lab);
+
+ /* Trap. */
+ gen_trap(s);
+
+ gen_set_label(lab);
+ return NO_EXIT;
+}
+
+#ifndef CONFIG_USER_ONLY
+static ExitStatus op_diag(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
+ TCGv_i32 r3 = tcg_const_i32(get_field(s->fields, r3));
+ TCGv_i32 func_code = tcg_const_i32(get_field(s->fields, i2));
+
+ check_privileged(s);
+ update_psw_addr(s);
+ gen_op_calc_cc(s);
+
+ gen_helper_diag(cpu_env, r1, r3, func_code);
+
+ tcg_temp_free_i32(func_code);
+ tcg_temp_free_i32(r3);
+ tcg_temp_free_i32(r1);
+ return NO_EXIT;
+}
+#endif
+
+static ExitStatus op_divs32(DisasContext *s, DisasOps *o)
+{
+ gen_helper_divs32(o->out2, cpu_env, o->in1, o->in2);
+ return_low128(o->out);
+ return NO_EXIT;
+}
+
+static ExitStatus op_divu32(DisasContext *s, DisasOps *o)
+{
+ gen_helper_divu32(o->out2, cpu_env, o->in1, o->in2);
+ return_low128(o->out);
+ return NO_EXIT;
+}
+
+static ExitStatus op_divs64(DisasContext *s, DisasOps *o)
+{
+ gen_helper_divs64(o->out2, cpu_env, o->in1, o->in2);
+ return_low128(o->out);
+ return NO_EXIT;
+}
+
+static ExitStatus op_divu64(DisasContext *s, DisasOps *o)
+{
+ gen_helper_divu64(o->out2, cpu_env, o->out, o->out2, o->in2);
+ return_low128(o->out);
+ return NO_EXIT;
+}
+
+static ExitStatus op_deb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_deb(o->out, cpu_env, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_ddb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_ddb(o->out, cpu_env, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_dxb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_dxb(o->out, cpu_env, o->out, o->out2, o->in1, o->in2);
+ return_low128(o->out2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_ear(DisasContext *s, DisasOps *o)
+{
+ int r2 = get_field(s->fields, r2);
+ tcg_gen_ld32u_i64(o->out, cpu_env, offsetof(CPUS390XState, aregs[r2]));
+ return NO_EXIT;
+}
+
+static ExitStatus op_ecag(DisasContext *s, DisasOps *o)
+{
+ /* No cache information provided. */
+ tcg_gen_movi_i64(o->out, -1);
+ return NO_EXIT;
+}
+
+static ExitStatus op_efpc(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_ld32u_i64(o->out, cpu_env, offsetof(CPUS390XState, fpc));
+ return NO_EXIT;
+}
+
+static ExitStatus op_epsw(DisasContext *s, DisasOps *o)
+{
+ int r1 = get_field(s->fields, r1);
+ int r2 = get_field(s->fields, r2);
+ TCGv_i64 t = tcg_temp_new_i64();
+
+ /* Note the "subsequently" in the PoO, which implies a defined result
+ if r1 == r2. Thus we cannot defer these writes to an output hook. */
+ tcg_gen_shri_i64(t, psw_mask, 32);
+ store_reg32_i64(r1, t);
+ if (r2 != 0) {
+ store_reg32_i64(r2, psw_mask);
+ }
+
+ tcg_temp_free_i64(t);
+ return NO_EXIT;
+}
+
+static ExitStatus op_ex(DisasContext *s, DisasOps *o)
+{
+ /* ??? Perhaps a better way to implement EXECUTE is to set a bit in
+ tb->flags, (ab)use the tb->cs_base field as the address of
+ the template in memory, and grab 8 bits of tb->flags/cflags for
+ the contents of the register. We would then recognize all this
+ in gen_intermediate_code_internal, generating code for exactly
+ one instruction. This new TB then gets executed normally.
+
+ On the other hand, this seems to be mostly used for modifying
+ MVC inside of memcpy, which needs a helper call anyway. So
+ perhaps this doesn't bear thinking about any further. */
+
+ TCGv_i64 tmp;
+
+ update_psw_addr(s);
+ gen_op_calc_cc(s);
+
+ tmp = tcg_const_i64(s->next_pc);
+ gen_helper_ex(cc_op, cpu_env, cc_op, o->in1, o->in2, tmp);
+ tcg_temp_free_i64(tmp);
+
+ return NO_EXIT;
+}
+
+static ExitStatus op_fieb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ gen_helper_fieb(o->out, cpu_env, o->in2, m3);
+ tcg_temp_free_i32(m3);
+ return NO_EXIT;
+}
+
+static ExitStatus op_fidb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ gen_helper_fidb(o->out, cpu_env, o->in2, m3);
+ tcg_temp_free_i32(m3);
+ return NO_EXIT;
+}
+
+static ExitStatus op_fixb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
+ gen_helper_fixb(o->out, cpu_env, o->in1, o->in2, m3);
+ return_low128(o->out2);
+ tcg_temp_free_i32(m3);
+ return NO_EXIT;
+}
+
+static ExitStatus op_flogr(DisasContext *s, DisasOps *o)
+{
+ /* We'll use the original input for cc computation, since we get to
+ compare that against 0, which ought to be better than comparing
+ the real output against 64. It also lets cc_dst be a convenient
+ temporary during our computation. */
+ gen_op_update1_cc_i64(s, CC_OP_FLOGR, o->in2);
+
+ /* R1 = IN ? CLZ(IN) : 64. */
+ gen_helper_clz(o->out, o->in2);
+
+ /* R1+1 = IN & ~(found bit). Note that we may attempt to shift this
+ value by 64, which is undefined. But since the shift is 64 iff the
+ input is zero, we still get the correct result after and'ing. */
+ tcg_gen_movi_i64(o->out2, 0x8000000000000000ull);
+ tcg_gen_shr_i64(o->out2, o->out2, o->out);
+ tcg_gen_andc_i64(o->out2, cc_dst, o->out2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_icm(DisasContext *s, DisasOps *o)
+{
+ int m3 = get_field(s->fields, m3);
+ int pos, len, base = s->insn->data;
+ TCGv_i64 tmp = tcg_temp_new_i64();
+ uint64_t ccm;
+
+ switch (m3) {
+ case 0xf:
+ /* Effectively a 32-bit load. */
+ tcg_gen_qemu_ld32u(tmp, o->in2, get_mem_index(s));
+ len = 32;
+ goto one_insert;
+
+ case 0xc:
+ case 0x6:
+ case 0x3:
+ /* Effectively a 16-bit load. */
+ tcg_gen_qemu_ld16u(tmp, o->in2, get_mem_index(s));
+ len = 16;
+ goto one_insert;
+
+ case 0x8:
+ case 0x4:
+ case 0x2:
+ case 0x1:
+ /* Effectively an 8-bit load. */
+ tcg_gen_qemu_ld8u(tmp, o->in2, get_mem_index(s));
+ len = 8;
+ goto one_insert;
+
+ one_insert:
+ pos = base + ctz32(m3) * 8;
+ tcg_gen_deposit_i64(o->out, o->out, tmp, pos, len);
+ ccm = ((1ull << len) - 1) << pos;
+ break;
+
+ default:
+ /* This is going to be a sequence of loads and inserts. */
+ pos = base + 32 - 8;
+ ccm = 0;
+ while (m3) {
+ if (m3 & 0x8) {
+ tcg_gen_qemu_ld8u(tmp, o->in2, get_mem_index(s));
+ tcg_gen_addi_i64(o->in2, o->in2, 1);
+ tcg_gen_deposit_i64(o->out, o->out, tmp, pos, 8);
+ ccm |= 0xff << pos;
+ }
+ m3 = (m3 << 1) & 0xf;
+ pos -= 8;
+ }
+ break;
+ }
+
+ tcg_gen_movi_i64(tmp, ccm);
+ gen_op_update2_cc_i64(s, CC_OP_ICM, tmp, o->out);
+ tcg_temp_free_i64(tmp);
+ return NO_EXIT;
+}
+
+static ExitStatus op_insi(DisasContext *s, DisasOps *o)
+{
+ int shift = s->insn->data & 0xff;
+ int size = s->insn->data >> 8;
+ tcg_gen_deposit_i64(o->out, o->in1, o->in2, shift, size);
+ return NO_EXIT;
+}
+
+static ExitStatus op_ipm(DisasContext *s, DisasOps *o)
+{
+ TCGv_i64 t1;
+
+ gen_op_calc_cc(s);
+ tcg_gen_andi_i64(o->out, o->out, ~0xff000000ull);
+
+ t1 = tcg_temp_new_i64();
+ tcg_gen_shli_i64(t1, psw_mask, 20);
+ tcg_gen_shri_i64(t1, t1, 36);
+ tcg_gen_or_i64(o->out, o->out, t1);
+
+ tcg_gen_extu_i32_i64(t1, cc_op);
+ tcg_gen_shli_i64(t1, t1, 28);
+ tcg_gen_or_i64(o->out, o->out, t1);
+ tcg_temp_free_i64(t1);
+ return NO_EXIT;
+}
+
+#ifndef CONFIG_USER_ONLY
+static ExitStatus op_ipte(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ gen_helper_ipte(cpu_env, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_iske(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ gen_helper_iske(o->out, cpu_env, o->in2);
+ return NO_EXIT;
+}
+#endif
+
+static ExitStatus op_ldeb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_ldeb(o->out, cpu_env, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_ledb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_ledb(o->out, cpu_env, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_ldxb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_ldxb(o->out, cpu_env, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_lexb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_lexb(o->out, cpu_env, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_lxdb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_lxdb(o->out, cpu_env, o->in2);
+ return_low128(o->out2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_lxeb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_lxeb(o->out, cpu_env, o->in2);
+ return_low128(o->out2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_llgt(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_andi_i64(o->out, o->in2, 0x7fffffff);
+ return NO_EXIT;
+}
+
+static ExitStatus op_ld8s(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_qemu_ld8s(o->out, o->in2, get_mem_index(s));
+ return NO_EXIT;
+}
+
+static ExitStatus op_ld8u(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_qemu_ld8u(o->out, o->in2, get_mem_index(s));
+ return NO_EXIT;
+}
+
+static ExitStatus op_ld16s(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_qemu_ld16s(o->out, o->in2, get_mem_index(s));
+ return NO_EXIT;
+}
+
+static ExitStatus op_ld16u(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_qemu_ld16u(o->out, o->in2, get_mem_index(s));
+ return NO_EXIT;
+}
+
+static ExitStatus op_ld32s(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_qemu_ld32s(o->out, o->in2, get_mem_index(s));
+ return NO_EXIT;
+}
+
+static ExitStatus op_ld32u(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_qemu_ld32u(o->out, o->in2, get_mem_index(s));
+ return NO_EXIT;
+}
+
+static ExitStatus op_ld64(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_qemu_ld64(o->out, o->in2, get_mem_index(s));
+ return NO_EXIT;
+}
+
+static ExitStatus op_lat(DisasContext *s, DisasOps *o)
+{
+ TCGLabel *lab = gen_new_label();
+ store_reg32_i64(get_field(s->fields, r1), o->in2);
+ /* The value is stored even in case of trap. */
+ tcg_gen_brcondi_i64(TCG_COND_NE, o->in2, 0, lab);
+ gen_trap(s);
+ gen_set_label(lab);
+ return NO_EXIT;
+}
+
+static ExitStatus op_lgat(DisasContext *s, DisasOps *o)
+{
+ TCGLabel *lab = gen_new_label();
+ tcg_gen_qemu_ld64(o->out, o->in2, get_mem_index(s));
+ /* The value is stored even in case of trap. */
+ tcg_gen_brcondi_i64(TCG_COND_NE, o->out, 0, lab);
+ gen_trap(s);
+ gen_set_label(lab);
+ return NO_EXIT;
+}
+
+static ExitStatus op_lfhat(DisasContext *s, DisasOps *o)
+{
+ TCGLabel *lab = gen_new_label();
+ store_reg32h_i64(get_field(s->fields, r1), o->in2);
+ /* The value is stored even in case of trap. */
+ tcg_gen_brcondi_i64(TCG_COND_NE, o->in2, 0, lab);
+ gen_trap(s);
+ gen_set_label(lab);
+ return NO_EXIT;
+}
+
+static ExitStatus op_llgfat(DisasContext *s, DisasOps *o)
+{
+ TCGLabel *lab = gen_new_label();
+ tcg_gen_qemu_ld32u(o->out, o->in2, get_mem_index(s));
+ /* The value is stored even in case of trap. */
+ tcg_gen_brcondi_i64(TCG_COND_NE, o->out, 0, lab);
+ gen_trap(s);
+ gen_set_label(lab);
+ return NO_EXIT;
+}
+
+static ExitStatus op_llgtat(DisasContext *s, DisasOps *o)
+{
+ TCGLabel *lab = gen_new_label();
+ tcg_gen_andi_i64(o->out, o->in2, 0x7fffffff);
+ /* The value is stored even in case of trap. */
+ tcg_gen_brcondi_i64(TCG_COND_NE, o->out, 0, lab);
+ gen_trap(s);
+ gen_set_label(lab);
+ return NO_EXIT;
+}
+
+static ExitStatus op_loc(DisasContext *s, DisasOps *o)
+{
+ DisasCompare c;
+
+ disas_jcc(s, &c, get_field(s->fields, m3));
+
+ if (c.is_64) {
+ tcg_gen_movcond_i64(c.cond, o->out, c.u.s64.a, c.u.s64.b,
+ o->in2, o->in1);
+ free_compare(&c);
+ } else {
+ TCGv_i32 t32 = tcg_temp_new_i32();
+ TCGv_i64 t, z;
+
+ tcg_gen_setcond_i32(c.cond, t32, c.u.s32.a, c.u.s32.b);
+ free_compare(&c);
+
+ t = tcg_temp_new_i64();
+ tcg_gen_extu_i32_i64(t, t32);
+ tcg_temp_free_i32(t32);
+
+ z = tcg_const_i64(0);
+ tcg_gen_movcond_i64(TCG_COND_NE, o->out, t, z, o->in2, o->in1);
+ tcg_temp_free_i64(t);
+ tcg_temp_free_i64(z);
+ }
+
+ return NO_EXIT;
+}
+
+#ifndef CONFIG_USER_ONLY
+static ExitStatus op_lctl(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
+ TCGv_i32 r3 = tcg_const_i32(get_field(s->fields, r3));
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_lctl(cpu_env, r1, o->in2, r3);
+ tcg_temp_free_i32(r1);
+ tcg_temp_free_i32(r3);
+ return NO_EXIT;
+}
+
+static ExitStatus op_lctlg(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
+ TCGv_i32 r3 = tcg_const_i32(get_field(s->fields, r3));
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_lctlg(cpu_env, r1, o->in2, r3);
+ tcg_temp_free_i32(r1);
+ tcg_temp_free_i32(r3);
+ return NO_EXIT;
+}
+static ExitStatus op_lra(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_lra(o->out, cpu_env, o->in2);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_lpsw(DisasContext *s, DisasOps *o)
+{
+ TCGv_i64 t1, t2;
+
+ check_privileged(s);
+ per_breaking_event(s);
+
+ t1 = tcg_temp_new_i64();
+ t2 = tcg_temp_new_i64();
+ tcg_gen_qemu_ld32u(t1, o->in2, get_mem_index(s));
+ tcg_gen_addi_i64(o->in2, o->in2, 4);
+ tcg_gen_qemu_ld32u(t2, o->in2, get_mem_index(s));
+ /* Convert the 32-bit PSW_MASK into the 64-bit PSW_MASK. */
+ tcg_gen_shli_i64(t1, t1, 32);
+ gen_helper_load_psw(cpu_env, t1, t2);
+ tcg_temp_free_i64(t1);
+ tcg_temp_free_i64(t2);
+ return EXIT_NORETURN;
+}
+
+static ExitStatus op_lpswe(DisasContext *s, DisasOps *o)
+{
+ TCGv_i64 t1, t2;
+
+ check_privileged(s);
+ per_breaking_event(s);
+
+ t1 = tcg_temp_new_i64();
+ t2 = tcg_temp_new_i64();
+ tcg_gen_qemu_ld64(t1, o->in2, get_mem_index(s));
+ tcg_gen_addi_i64(o->in2, o->in2, 8);
+ tcg_gen_qemu_ld64(t2, o->in2, get_mem_index(s));
+ gen_helper_load_psw(cpu_env, t1, t2);
+ tcg_temp_free_i64(t1);
+ tcg_temp_free_i64(t2);
+ return EXIT_NORETURN;
+}
+#endif
+
+static ExitStatus op_lam(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
+ TCGv_i32 r3 = tcg_const_i32(get_field(s->fields, r3));
+ potential_page_fault(s);
+ gen_helper_lam(cpu_env, r1, o->in2, r3);
+ tcg_temp_free_i32(r1);
+ tcg_temp_free_i32(r3);
+ return NO_EXIT;
+}
+
+static ExitStatus op_lm32(DisasContext *s, DisasOps *o)
+{
+ int r1 = get_field(s->fields, r1);
+ int r3 = get_field(s->fields, r3);
+ TCGv_i64 t1, t2;
+
+ /* Only one register to read. */
+ t1 = tcg_temp_new_i64();
+ if (unlikely(r1 == r3)) {
+ tcg_gen_qemu_ld32u(t1, o->in2, get_mem_index(s));
+ store_reg32_i64(r1, t1);
+ tcg_temp_free(t1);
+ return NO_EXIT;
+ }
+
+ /* First load the values of the first and last registers to trigger
+ possible page faults. */
+ t2 = tcg_temp_new_i64();
+ tcg_gen_qemu_ld32u(t1, o->in2, get_mem_index(s));
+ tcg_gen_addi_i64(t2, o->in2, 4 * ((r3 - r1) & 15));
+ tcg_gen_qemu_ld32u(t2, t2, get_mem_index(s));
+ store_reg32_i64(r1, t1);
+ store_reg32_i64(r3, t2);
+
+ /* Only two registers to read. */
+ if (((r1 + 1) & 15) == r3) {
+ tcg_temp_free(t2);
+ tcg_temp_free(t1);
+ return NO_EXIT;
+ }
+
+ /* Then load the remaining registers. Page fault can't occur. */
+ r3 = (r3 - 1) & 15;
+ tcg_gen_movi_i64(t2, 4);
+ while (r1 != r3) {
+ r1 = (r1 + 1) & 15;
+ tcg_gen_add_i64(o->in2, o->in2, t2);
+ tcg_gen_qemu_ld32u(t1, o->in2, get_mem_index(s));
+ store_reg32_i64(r1, t1);
+ }
+ tcg_temp_free(t2);
+ tcg_temp_free(t1);
+
+ return NO_EXIT;
+}
+
+static ExitStatus op_lmh(DisasContext *s, DisasOps *o)
+{
+ int r1 = get_field(s->fields, r1);
+ int r3 = get_field(s->fields, r3);
+ TCGv_i64 t1, t2;
+
+ /* Only one register to read. */
+ t1 = tcg_temp_new_i64();
+ if (unlikely(r1 == r3)) {
+ tcg_gen_qemu_ld32u(t1, o->in2, get_mem_index(s));
+ store_reg32h_i64(r1, t1);
+ tcg_temp_free(t1);
+ return NO_EXIT;
+ }
+
+ /* First load the values of the first and last registers to trigger
+ possible page faults. */
+ t2 = tcg_temp_new_i64();
+ tcg_gen_qemu_ld32u(t1, o->in2, get_mem_index(s));
+ tcg_gen_addi_i64(t2, o->in2, 4 * ((r3 - r1) & 15));
+ tcg_gen_qemu_ld32u(t2, t2, get_mem_index(s));
+ store_reg32h_i64(r1, t1);
+ store_reg32h_i64(r3, t2);
+
+ /* Only two registers to read. */
+ if (((r1 + 1) & 15) == r3) {
+ tcg_temp_free(t2);
+ tcg_temp_free(t1);
+ return NO_EXIT;
+ }
+
+ /* Then load the remaining registers. Page fault can't occur. */
+ r3 = (r3 - 1) & 15;
+ tcg_gen_movi_i64(t2, 4);
+ while (r1 != r3) {
+ r1 = (r1 + 1) & 15;
+ tcg_gen_add_i64(o->in2, o->in2, t2);
+ tcg_gen_qemu_ld32u(t1, o->in2, get_mem_index(s));
+ store_reg32h_i64(r1, t1);
+ }
+ tcg_temp_free(t2);
+ tcg_temp_free(t1);
+
+ return NO_EXIT;
+}
+
+static ExitStatus op_lm64(DisasContext *s, DisasOps *o)
+{
+ int r1 = get_field(s->fields, r1);
+ int r3 = get_field(s->fields, r3);
+ TCGv_i64 t1, t2;
+
+ /* Only one register to read. */
+ if (unlikely(r1 == r3)) {
+ tcg_gen_qemu_ld64(regs[r1], o->in2, get_mem_index(s));
+ return NO_EXIT;
+ }
+
+ /* First load the values of the first and last registers to trigger
+ possible page faults. */
+ t1 = tcg_temp_new_i64();
+ t2 = tcg_temp_new_i64();
+ tcg_gen_qemu_ld64(t1, o->in2, get_mem_index(s));
+ tcg_gen_addi_i64(t2, o->in2, 8 * ((r3 - r1) & 15));
+ tcg_gen_qemu_ld64(regs[r3], t2, get_mem_index(s));
+ tcg_gen_mov_i64(regs[r1], t1);
+ tcg_temp_free(t2);
+
+ /* Only two registers to read. */
+ if (((r1 + 1) & 15) == r3) {
+ tcg_temp_free(t1);
+ return NO_EXIT;
+ }
+
+ /* Then load the remaining registers. Page fault can't occur. */
+ r3 = (r3 - 1) & 15;
+ tcg_gen_movi_i64(t1, 8);
+ while (r1 != r3) {
+ r1 = (r1 + 1) & 15;
+ tcg_gen_add_i64(o->in2, o->in2, t1);
+ tcg_gen_qemu_ld64(regs[r1], o->in2, get_mem_index(s));
+ }
+ tcg_temp_free(t1);
+
+ return NO_EXIT;
+}
+
+#ifndef CONFIG_USER_ONLY
+static ExitStatus op_lura(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_lura(o->out, cpu_env, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_lurag(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_lurag(o->out, cpu_env, o->in2);
+ return NO_EXIT;
+}
+#endif
+
+static ExitStatus op_mov2(DisasContext *s, DisasOps *o)
+{
+ o->out = o->in2;
+ o->g_out = o->g_in2;
+ TCGV_UNUSED_I64(o->in2);
+ o->g_in2 = false;
+ return NO_EXIT;
+}
+
+static ExitStatus op_mov2e(DisasContext *s, DisasOps *o)
+{
+ int b2 = get_field(s->fields, b2);
+ TCGv ar1 = tcg_temp_new_i64();
+
+ o->out = o->in2;
+ o->g_out = o->g_in2;
+ TCGV_UNUSED_I64(o->in2);
+ o->g_in2 = false;
+
+ switch (s->tb->flags & FLAG_MASK_ASC) {
+ case PSW_ASC_PRIMARY >> 32:
+ tcg_gen_movi_i64(ar1, 0);
+ break;
+ case PSW_ASC_ACCREG >> 32:
+ tcg_gen_movi_i64(ar1, 1);
+ break;
+ case PSW_ASC_SECONDARY >> 32:
+ if (b2) {
+ tcg_gen_ld32u_i64(ar1, cpu_env, offsetof(CPUS390XState, aregs[b2]));
+ } else {
+ tcg_gen_movi_i64(ar1, 0);
+ }
+ break;
+ case PSW_ASC_HOME >> 32:
+ tcg_gen_movi_i64(ar1, 2);
+ break;
+ }
+
+ tcg_gen_st32_i64(ar1, cpu_env, offsetof(CPUS390XState, aregs[1]));
+ tcg_temp_free_i64(ar1);
+
+ return NO_EXIT;
+}
+
+static ExitStatus op_movx(DisasContext *s, DisasOps *o)
+{
+ o->out = o->in1;
+ o->out2 = o->in2;
+ o->g_out = o->g_in1;
+ o->g_out2 = o->g_in2;
+ TCGV_UNUSED_I64(o->in1);
+ TCGV_UNUSED_I64(o->in2);
+ o->g_in1 = o->g_in2 = false;
+ return NO_EXIT;
+}
+
+static ExitStatus op_mvc(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));
+ potential_page_fault(s);
+ gen_helper_mvc(cpu_env, l, o->addr1, o->in2);
+ tcg_temp_free_i32(l);
+ return NO_EXIT;
+}
+
+static ExitStatus op_mvcl(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
+ TCGv_i32 r2 = tcg_const_i32(get_field(s->fields, r2));
+ potential_page_fault(s);
+ gen_helper_mvcl(cc_op, cpu_env, r1, r2);
+ tcg_temp_free_i32(r1);
+ tcg_temp_free_i32(r2);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_mvcle(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
+ TCGv_i32 r3 = tcg_const_i32(get_field(s->fields, r3));
+ potential_page_fault(s);
+ gen_helper_mvcle(cc_op, cpu_env, r1, o->in2, r3);
+ tcg_temp_free_i32(r1);
+ tcg_temp_free_i32(r3);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+#ifndef CONFIG_USER_ONLY
+static ExitStatus op_mvcp(DisasContext *s, DisasOps *o)
+{
+ int r1 = get_field(s->fields, l1);
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_mvcp(cc_op, cpu_env, regs[r1], o->addr1, o->in2);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_mvcs(DisasContext *s, DisasOps *o)
+{
+ int r1 = get_field(s->fields, l1);
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_mvcs(cc_op, cpu_env, regs[r1], o->addr1, o->in2);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+#endif
+
+static ExitStatus op_mvpg(DisasContext *s, DisasOps *o)
+{
+ potential_page_fault(s);
+ gen_helper_mvpg(cpu_env, regs[0], o->in1, o->in2);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_mvst(DisasContext *s, DisasOps *o)
+{
+ potential_page_fault(s);
+ gen_helper_mvst(o->in1, cpu_env, regs[0], o->in1, o->in2);
+ set_cc_static(s);
+ return_low128(o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_mul(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_mul_i64(o->out, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_mul128(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_mulu2_i64(o->out2, o->out, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_meeb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_meeb(o->out, cpu_env, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_mdeb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_mdeb(o->out, cpu_env, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_mdb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_mdb(o->out, cpu_env, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_mxb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_mxb(o->out, cpu_env, o->out, o->out2, o->in1, o->in2);
+ return_low128(o->out2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_mxdb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_mxdb(o->out, cpu_env, o->out, o->out2, o->in2);
+ return_low128(o->out2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_maeb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i64 r3 = load_freg32_i64(get_field(s->fields, r3));
+ gen_helper_maeb(o->out, cpu_env, o->in1, o->in2, r3);
+ tcg_temp_free_i64(r3);
+ return NO_EXIT;
+}
+
+static ExitStatus op_madb(DisasContext *s, DisasOps *o)
+{
+ int r3 = get_field(s->fields, r3);
+ gen_helper_madb(o->out, cpu_env, o->in1, o->in2, fregs[r3]);
+ return NO_EXIT;
+}
+
+static ExitStatus op_mseb(DisasContext *s, DisasOps *o)
+{
+ TCGv_i64 r3 = load_freg32_i64(get_field(s->fields, r3));
+ gen_helper_mseb(o->out, cpu_env, o->in1, o->in2, r3);
+ tcg_temp_free_i64(r3);
+ return NO_EXIT;
+}
+
+static ExitStatus op_msdb(DisasContext *s, DisasOps *o)
+{
+ int r3 = get_field(s->fields, r3);
+ gen_helper_msdb(o->out, cpu_env, o->in1, o->in2, fregs[r3]);
+ return NO_EXIT;
+}
+
+static ExitStatus op_nabs(DisasContext *s, DisasOps *o)
+{
+ TCGv_i64 z, n;
+ z = tcg_const_i64(0);
+ n = tcg_temp_new_i64();
+ tcg_gen_neg_i64(n, o->in2);
+ tcg_gen_movcond_i64(TCG_COND_GE, o->out, o->in2, z, n, o->in2);
+ tcg_temp_free_i64(n);
+ tcg_temp_free_i64(z);
+ return NO_EXIT;
+}
+
+static ExitStatus op_nabsf32(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_ori_i64(o->out, o->in2, 0x80000000ull);
+ return NO_EXIT;
+}
+
+static ExitStatus op_nabsf64(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_ori_i64(o->out, o->in2, 0x8000000000000000ull);
+ return NO_EXIT;
+}
+
+static ExitStatus op_nabsf128(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_ori_i64(o->out, o->in1, 0x8000000000000000ull);
+ tcg_gen_mov_i64(o->out2, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_nc(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));
+ potential_page_fault(s);
+ gen_helper_nc(cc_op, cpu_env, l, o->addr1, o->in2);
+ tcg_temp_free_i32(l);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_neg(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_neg_i64(o->out, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_negf32(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_xori_i64(o->out, o->in2, 0x80000000ull);
+ return NO_EXIT;
+}
+
+static ExitStatus op_negf64(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_xori_i64(o->out, o->in2, 0x8000000000000000ull);
+ return NO_EXIT;
+}
+
+static ExitStatus op_negf128(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_xori_i64(o->out, o->in1, 0x8000000000000000ull);
+ tcg_gen_mov_i64(o->out2, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_oc(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));
+ potential_page_fault(s);
+ gen_helper_oc(cc_op, cpu_env, l, o->addr1, o->in2);
+ tcg_temp_free_i32(l);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_or(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_or_i64(o->out, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_ori(DisasContext *s, DisasOps *o)
+{
+ int shift = s->insn->data & 0xff;
+ int size = s->insn->data >> 8;
+ uint64_t mask = ((1ull << size) - 1) << shift;
+
+ assert(!o->g_in2);
+ tcg_gen_shli_i64(o->in2, o->in2, shift);
+ tcg_gen_or_i64(o->out, o->in1, o->in2);
+
+ /* Produce the CC from only the bits manipulated. */
+ tcg_gen_andi_i64(cc_dst, o->out, mask);
+ set_cc_nz_u64(s, cc_dst);
+ return NO_EXIT;
+}
+
+static ExitStatus op_popcnt(DisasContext *s, DisasOps *o)
+{
+ gen_helper_popcnt(o->out, o->in2);
+ return NO_EXIT;
+}
+
+#ifndef CONFIG_USER_ONLY
+static ExitStatus op_ptlb(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ gen_helper_ptlb(cpu_env);
+ return NO_EXIT;
+}
+#endif
+
+static ExitStatus op_risbg(DisasContext *s, DisasOps *o)
+{
+ int i3 = get_field(s->fields, i3);
+ int i4 = get_field(s->fields, i4);
+ int i5 = get_field(s->fields, i5);
+ int do_zero = i4 & 0x80;
+ uint64_t mask, imask, pmask;
+ int pos, len, rot;
+
+ /* Adjust the arguments for the specific insn. */
+ switch (s->fields->op2) {
+ case 0x55: /* risbg */
+ i3 &= 63;
+ i4 &= 63;
+ pmask = ~0;
+ break;
+ case 0x5d: /* risbhg */
+ i3 &= 31;
+ i4 &= 31;
+ pmask = 0xffffffff00000000ull;
+ break;
+ case 0x51: /* risblg */
+ i3 &= 31;
+ i4 &= 31;
+ pmask = 0x00000000ffffffffull;
+ break;
+ default:
+ abort();
+ }
+
+ /* MASK is the set of bits to be inserted from R2.
+ Take care for I3/I4 wraparound. */
+ mask = pmask >> i3;
+ if (i3 <= i4) {
+ mask ^= pmask >> i4 >> 1;
+ } else {
+ mask |= ~(pmask >> i4 >> 1);
+ }
+ mask &= pmask;
+
+ /* IMASK is the set of bits to be kept from R1. In the case of the high/low
+ insns, we need to keep the other half of the register. */
+ imask = ~mask | ~pmask;
+ if (do_zero) {
+ if (s->fields->op2 == 0x55) {
+ imask = 0;
+ } else {
+ imask = ~pmask;
+ }
+ }
+
+ /* In some cases we can implement this with deposit, which can be more
+ efficient on some hosts. */
+ if (~mask == imask && i3 <= i4) {
+ if (s->fields->op2 == 0x5d) {
+ i3 += 32, i4 += 32;
+ }
+ /* Note that we rotate the bits to be inserted to the lsb, not to
+ the position as described in the PoO. */
+ len = i4 - i3 + 1;
+ pos = 63 - i4;
+ rot = (i5 - pos) & 63;
+ } else {
+ pos = len = -1;
+ rot = i5 & 63;
+ }
+
+ /* Rotate the input as necessary. */
+ tcg_gen_rotli_i64(o->in2, o->in2, rot);
+
+ /* Insert the selected bits into the output. */
+ if (pos >= 0) {
+ tcg_gen_deposit_i64(o->out, o->out, o->in2, pos, len);
+ } else if (imask == 0) {
+ tcg_gen_andi_i64(o->out, o->in2, mask);
+ } else {
+ tcg_gen_andi_i64(o->in2, o->in2, mask);
+ tcg_gen_andi_i64(o->out, o->out, imask);
+ tcg_gen_or_i64(o->out, o->out, o->in2);
+ }
+ return NO_EXIT;
+}
+
+static ExitStatus op_rosbg(DisasContext *s, DisasOps *o)
+{
+ int i3 = get_field(s->fields, i3);
+ int i4 = get_field(s->fields, i4);
+ int i5 = get_field(s->fields, i5);
+ uint64_t mask;
+
+ /* If this is a test-only form, arrange to discard the result. */
+ if (i3 & 0x80) {
+ o->out = tcg_temp_new_i64();
+ o->g_out = false;
+ }
+
+ i3 &= 63;
+ i4 &= 63;
+ i5 &= 63;
+
+ /* MASK is the set of bits to be operated on from R2.
+ Take care for I3/I4 wraparound. */
+ mask = ~0ull >> i3;
+ if (i3 <= i4) {
+ mask ^= ~0ull >> i4 >> 1;
+ } else {
+ mask |= ~(~0ull >> i4 >> 1);
+ }
+
+ /* Rotate the input as necessary. */
+ tcg_gen_rotli_i64(o->in2, o->in2, i5);
+
+ /* Operate. */
+ switch (s->fields->op2) {
+ case 0x55: /* AND */
+ tcg_gen_ori_i64(o->in2, o->in2, ~mask);
+ tcg_gen_and_i64(o->out, o->out, o->in2);
+ break;
+ case 0x56: /* OR */
+ tcg_gen_andi_i64(o->in2, o->in2, mask);
+ tcg_gen_or_i64(o->out, o->out, o->in2);
+ break;
+ case 0x57: /* XOR */
+ tcg_gen_andi_i64(o->in2, o->in2, mask);
+ tcg_gen_xor_i64(o->out, o->out, o->in2);
+ break;
+ default:
+ abort();
+ }
+
+ /* Set the CC. */
+ tcg_gen_andi_i64(cc_dst, o->out, mask);
+ set_cc_nz_u64(s, cc_dst);
+ return NO_EXIT;
+}
+
+static ExitStatus op_rev16(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_bswap16_i64(o->out, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_rev32(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_bswap32_i64(o->out, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_rev64(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_bswap64_i64(o->out, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_rll32(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 t1 = tcg_temp_new_i32();
+ TCGv_i32 t2 = tcg_temp_new_i32();
+ TCGv_i32 to = tcg_temp_new_i32();
+ tcg_gen_trunc_i64_i32(t1, o->in1);
+ tcg_gen_trunc_i64_i32(t2, o->in2);
+ tcg_gen_rotl_i32(to, t1, t2);
+ tcg_gen_extu_i32_i64(o->out, to);
+ tcg_temp_free_i32(t1);
+ tcg_temp_free_i32(t2);
+ tcg_temp_free_i32(to);
+ return NO_EXIT;
+}
+
+static ExitStatus op_rll64(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_rotl_i64(o->out, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+#ifndef CONFIG_USER_ONLY
+static ExitStatus op_rrbe(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ gen_helper_rrbe(cc_op, cpu_env, o->in2);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_sacf(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ gen_helper_sacf(cpu_env, o->in2);
+ /* Addressing mode has changed, so end the block. */
+ return EXIT_PC_STALE;
+}
+#endif
+
+static ExitStatus op_sam(DisasContext *s, DisasOps *o)
+{
+ int sam = s->insn->data;
+ TCGv_i64 tsam;
+ uint64_t mask;
+
+ switch (sam) {
+ case 0:
+ mask = 0xffffff;
+ break;
+ case 1:
+ mask = 0x7fffffff;
+ break;
+ default:
+ mask = -1;
+ break;
+ }
+
+ /* Bizarre but true, we check the address of the current insn for the
+ specification exception, not the next to be executed. Thus the PoO
+ documents that Bad Things Happen two bytes before the end. */
+ if (s->pc & ~mask) {
+ gen_program_exception(s, PGM_SPECIFICATION);
+ return EXIT_NORETURN;
+ }
+ s->next_pc &= mask;
+
+ tsam = tcg_const_i64(sam);
+ tcg_gen_deposit_i64(psw_mask, psw_mask, tsam, 31, 2);
+ tcg_temp_free_i64(tsam);
+
+ /* Always exit the TB, since we (may have) changed execution mode. */
+ return EXIT_PC_STALE;
+}
+
+static ExitStatus op_sar(DisasContext *s, DisasOps *o)
+{
+ int r1 = get_field(s->fields, r1);
+ tcg_gen_st32_i64(o->in2, cpu_env, offsetof(CPUS390XState, aregs[r1]));
+ return NO_EXIT;
+}
+
+static ExitStatus op_seb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_seb(o->out, cpu_env, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_sdb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_sdb(o->out, cpu_env, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_sxb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_sxb(o->out, cpu_env, o->out, o->out2, o->in1, o->in2);
+ return_low128(o->out2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_sqeb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_sqeb(o->out, cpu_env, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_sqdb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_sqdb(o->out, cpu_env, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_sqxb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_sqxb(o->out, cpu_env, o->in1, o->in2);
+ return_low128(o->out2);
+ return NO_EXIT;
+}
+
+#ifndef CONFIG_USER_ONLY
+static ExitStatus op_servc(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_servc(cc_op, cpu_env, o->in2, o->in1);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_sigp(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_sigp(cc_op, cpu_env, o->in2, r1, o->in1);
+ tcg_temp_free_i32(r1);
+ return NO_EXIT;
+}
+#endif
+
+static ExitStatus op_soc(DisasContext *s, DisasOps *o)
+{
+ DisasCompare c;
+ TCGv_i64 a;
+ TCGLabel *lab;
+ int r1;
+
+ disas_jcc(s, &c, get_field(s->fields, m3));
+
+ /* We want to store when the condition is fulfilled, so branch
+ out when it's not */
+ c.cond = tcg_invert_cond(c.cond);
+
+ lab = gen_new_label();
+ if (c.is_64) {
+ tcg_gen_brcond_i64(c.cond, c.u.s64.a, c.u.s64.b, lab);
+ } else {
+ tcg_gen_brcond_i32(c.cond, c.u.s32.a, c.u.s32.b, lab);
+ }
+ free_compare(&c);
+
+ r1 = get_field(s->fields, r1);
+ a = get_address(s, 0, get_field(s->fields, b2), get_field(s->fields, d2));
+ if (s->insn->data) {
+ tcg_gen_qemu_st64(regs[r1], a, get_mem_index(s));
+ } else {
+ tcg_gen_qemu_st32(regs[r1], a, get_mem_index(s));
+ }
+ tcg_temp_free_i64(a);
+
+ gen_set_label(lab);
+ return NO_EXIT;
+}
+
+static ExitStatus op_sla(DisasContext *s, DisasOps *o)
+{
+ uint64_t sign = 1ull << s->insn->data;
+ enum cc_op cco = s->insn->data == 31 ? CC_OP_SLA_32 : CC_OP_SLA_64;
+ gen_op_update2_cc_i64(s, cco, o->in1, o->in2);
+ tcg_gen_shl_i64(o->out, o->in1, o->in2);
+ /* The arithmetic left shift is curious in that it does not affect
+ the sign bit. Copy that over from the source unchanged. */
+ tcg_gen_andi_i64(o->out, o->out, ~sign);
+ tcg_gen_andi_i64(o->in1, o->in1, sign);
+ tcg_gen_or_i64(o->out, o->out, o->in1);
+ return NO_EXIT;
+}
+
+static ExitStatus op_sll(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_shl_i64(o->out, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_sra(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_sar_i64(o->out, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_srl(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_shr_i64(o->out, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_sfpc(DisasContext *s, DisasOps *o)
+{
+ gen_helper_sfpc(cpu_env, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_sfas(DisasContext *s, DisasOps *o)
+{
+ gen_helper_sfas(cpu_env, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_srnm(DisasContext *s, DisasOps *o)
+{
+ int b2 = get_field(s->fields, b2);
+ int d2 = get_field(s->fields, d2);
+ TCGv_i64 t1 = tcg_temp_new_i64();
+ TCGv_i64 t2 = tcg_temp_new_i64();
+ int mask, pos, len;
+
+ switch (s->fields->op2) {
+ case 0x99: /* SRNM */
+ pos = 0, len = 2;
+ break;
+ case 0xb8: /* SRNMB */
+ pos = 0, len = 3;
+ break;
+ case 0xb9: /* SRNMT */
+ pos = 4, len = 3;
+ break;
+ default:
+ tcg_abort();
+ }
+ mask = (1 << len) - 1;
+
+ /* Insert the value into the appropriate field of the FPC. */
+ if (b2 == 0) {
+ tcg_gen_movi_i64(t1, d2 & mask);
+ } else {
+ tcg_gen_addi_i64(t1, regs[b2], d2);
+ tcg_gen_andi_i64(t1, t1, mask);
+ }
+ tcg_gen_ld32u_i64(t2, cpu_env, offsetof(CPUS390XState, fpc));
+ tcg_gen_deposit_i64(t2, t2, t1, pos, len);
+ tcg_temp_free_i64(t1);
+
+ /* Then install the new FPC to set the rounding mode in fpu_status. */
+ gen_helper_sfpc(cpu_env, t2);
+ tcg_temp_free_i64(t2);
+ return NO_EXIT;
+}
+
+#ifndef CONFIG_USER_ONLY
+static ExitStatus op_spka(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ tcg_gen_shri_i64(o->in2, o->in2, 4);
+ tcg_gen_deposit_i64(psw_mask, psw_mask, o->in2, PSW_SHIFT_KEY - 4, 4);
+ return NO_EXIT;
+}
+
+static ExitStatus op_sske(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ gen_helper_sske(cpu_env, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_ssm(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ tcg_gen_deposit_i64(psw_mask, psw_mask, o->in2, 56, 8);
+ return NO_EXIT;
+}
+
+static ExitStatus op_stap(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ /* ??? Surely cpu address != cpu number. In any case the previous
+ version of this stored more than the required half-word, so it
+ is unlikely this has ever been tested. */
+ tcg_gen_ld32u_i64(o->out, cpu_env, offsetof(CPUS390XState, cpu_num));
+ return NO_EXIT;
+}
+
+static ExitStatus op_stck(DisasContext *s, DisasOps *o)
+{
+ gen_helper_stck(o->out, cpu_env);
+ /* ??? We don't implement clock states. */
+ gen_op_movi_cc(s, 0);
+ return NO_EXIT;
+}
+
+static ExitStatus op_stcke(DisasContext *s, DisasOps *o)
+{
+ TCGv_i64 c1 = tcg_temp_new_i64();
+ TCGv_i64 c2 = tcg_temp_new_i64();
+ gen_helper_stck(c1, cpu_env);
+ /* Shift the 64-bit value into its place as a zero-extended
+ 104-bit value. Note that "bit positions 64-103 are always
+ non-zero so that they compare differently to STCK"; we set
+ the least significant bit to 1. */
+ tcg_gen_shli_i64(c2, c1, 56);
+ tcg_gen_shri_i64(c1, c1, 8);
+ tcg_gen_ori_i64(c2, c2, 0x10000);
+ tcg_gen_qemu_st64(c1, o->in2, get_mem_index(s));
+ tcg_gen_addi_i64(o->in2, o->in2, 8);
+ tcg_gen_qemu_st64(c2, o->in2, get_mem_index(s));
+ tcg_temp_free_i64(c1);
+ tcg_temp_free_i64(c2);
+ /* ??? We don't implement clock states. */
+ gen_op_movi_cc(s, 0);
+ return NO_EXIT;
+}
+
+static ExitStatus op_sckc(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ gen_helper_sckc(cpu_env, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_stckc(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ gen_helper_stckc(o->out, cpu_env);
+ return NO_EXIT;
+}
+
+static ExitStatus op_stctg(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
+ TCGv_i32 r3 = tcg_const_i32(get_field(s->fields, r3));
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_stctg(cpu_env, r1, o->in2, r3);
+ tcg_temp_free_i32(r1);
+ tcg_temp_free_i32(r3);
+ return NO_EXIT;
+}
+
+static ExitStatus op_stctl(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
+ TCGv_i32 r3 = tcg_const_i32(get_field(s->fields, r3));
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_stctl(cpu_env, r1, o->in2, r3);
+ tcg_temp_free_i32(r1);
+ tcg_temp_free_i32(r3);
+ return NO_EXIT;
+}
+
+static ExitStatus op_stidp(DisasContext *s, DisasOps *o)
+{
+ TCGv_i64 t1 = tcg_temp_new_i64();
+
+ check_privileged(s);
+ tcg_gen_ld32u_i64(o->out, cpu_env, offsetof(CPUS390XState, cpu_num));
+ tcg_gen_ld32u_i64(t1, cpu_env, offsetof(CPUS390XState, machine_type));
+ tcg_gen_deposit_i64(o->out, o->out, t1, 32, 32);
+ tcg_temp_free_i64(t1);
+
+ return NO_EXIT;
+}
+
+static ExitStatus op_spt(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ gen_helper_spt(cpu_env, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_stfl(DisasContext *s, DisasOps *o)
+{
+ TCGv_i64 f, a;
+ /* We really ought to have more complete indication of facilities
+ that we implement. Address this when STFLE is implemented. */
+ check_privileged(s);
+ f = tcg_const_i64(0xc0000000);
+ a = tcg_const_i64(200);
+ tcg_gen_qemu_st32(f, a, get_mem_index(s));
+ tcg_temp_free_i64(f);
+ tcg_temp_free_i64(a);
+ return NO_EXIT;
+}
+
+static ExitStatus op_stpt(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ gen_helper_stpt(o->out, cpu_env);
+ return NO_EXIT;
+}
+
+static ExitStatus op_stsi(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_stsi(cc_op, cpu_env, o->in2, regs[0], regs[1]);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_spx(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ gen_helper_spx(cpu_env, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_xsch(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_xsch(cpu_env, regs[1]);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_csch(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_csch(cpu_env, regs[1]);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_hsch(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_hsch(cpu_env, regs[1]);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_msch(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_msch(cpu_env, regs[1], o->in2);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_rchp(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_rchp(cpu_env, regs[1]);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_rsch(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_rsch(cpu_env, regs[1]);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_ssch(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_ssch(cpu_env, regs[1], o->in2);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_stsch(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_stsch(cpu_env, regs[1], o->in2);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_tsch(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_tsch(cpu_env, regs[1], o->in2);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_chsc(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_chsc(cpu_env, o->in2);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_stpx(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ tcg_gen_ld_i64(o->out, cpu_env, offsetof(CPUS390XState, psa));
+ tcg_gen_andi_i64(o->out, o->out, 0x7fffe000);
+ return NO_EXIT;
+}
+
+static ExitStatus op_stnosm(DisasContext *s, DisasOps *o)
+{
+ uint64_t i2 = get_field(s->fields, i2);
+ TCGv_i64 t;
+
+ check_privileged(s);
+
+ /* It is important to do what the instruction name says: STORE THEN.
+ If we let the output hook perform the store then if we fault and
+ restart, we'll have the wrong SYSTEM MASK in place. */
+ t = tcg_temp_new_i64();
+ tcg_gen_shri_i64(t, psw_mask, 56);
+ tcg_gen_qemu_st8(t, o->addr1, get_mem_index(s));
+ tcg_temp_free_i64(t);
+
+ if (s->fields->op == 0xac) {
+ tcg_gen_andi_i64(psw_mask, psw_mask,
+ (i2 << 56) | 0x00ffffffffffffffull);
+ } else {
+ tcg_gen_ori_i64(psw_mask, psw_mask, i2 << 56);
+ }
+ return NO_EXIT;
+}
+
+static ExitStatus op_stura(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_stura(cpu_env, o->in2, o->in1);
+ return NO_EXIT;
+}
+
+static ExitStatus op_sturg(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_sturg(cpu_env, o->in2, o->in1);
+ return NO_EXIT;
+}
+#endif
+
+static ExitStatus op_st8(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_qemu_st8(o->in1, o->in2, get_mem_index(s));
+ return NO_EXIT;
+}
+
+static ExitStatus op_st16(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_qemu_st16(o->in1, o->in2, get_mem_index(s));
+ return NO_EXIT;
+}
+
+static ExitStatus op_st32(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_qemu_st32(o->in1, o->in2, get_mem_index(s));
+ return NO_EXIT;
+}
+
+static ExitStatus op_st64(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_qemu_st64(o->in1, o->in2, get_mem_index(s));
+ return NO_EXIT;
+}
+
+static ExitStatus op_stam(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
+ TCGv_i32 r3 = tcg_const_i32(get_field(s->fields, r3));
+ potential_page_fault(s);
+ gen_helper_stam(cpu_env, r1, o->in2, r3);
+ tcg_temp_free_i32(r1);
+ tcg_temp_free_i32(r3);
+ return NO_EXIT;
+}
+
+static ExitStatus op_stcm(DisasContext *s, DisasOps *o)
+{
+ int m3 = get_field(s->fields, m3);
+ int pos, base = s->insn->data;
+ TCGv_i64 tmp = tcg_temp_new_i64();
+
+ pos = base + ctz32(m3) * 8;
+ switch (m3) {
+ case 0xf:
+ /* Effectively a 32-bit store. */
+ tcg_gen_shri_i64(tmp, o->in1, pos);
+ tcg_gen_qemu_st32(tmp, o->in2, get_mem_index(s));
+ break;
+
+ case 0xc:
+ case 0x6:
+ case 0x3:
+ /* Effectively a 16-bit store. */
+ tcg_gen_shri_i64(tmp, o->in1, pos);
+ tcg_gen_qemu_st16(tmp, o->in2, get_mem_index(s));
+ break;
+
+ case 0x8:
+ case 0x4:
+ case 0x2:
+ case 0x1:
+ /* Effectively an 8-bit store. */
+ tcg_gen_shri_i64(tmp, o->in1, pos);
+ tcg_gen_qemu_st8(tmp, o->in2, get_mem_index(s));
+ break;
+
+ default:
+ /* This is going to be a sequence of shifts and stores. */
+ pos = base + 32 - 8;
+ while (m3) {
+ if (m3 & 0x8) {
+ tcg_gen_shri_i64(tmp, o->in1, pos);
+ tcg_gen_qemu_st8(tmp, o->in2, get_mem_index(s));
+ tcg_gen_addi_i64(o->in2, o->in2, 1);
+ }
+ m3 = (m3 << 1) & 0xf;
+ pos -= 8;
+ }
+ break;
+ }
+ tcg_temp_free_i64(tmp);
+ return NO_EXIT;
+}
+
+static ExitStatus op_stm(DisasContext *s, DisasOps *o)
+{
+ int r1 = get_field(s->fields, r1);
+ int r3 = get_field(s->fields, r3);
+ int size = s->insn->data;
+ TCGv_i64 tsize = tcg_const_i64(size);
+
+ while (1) {
+ if (size == 8) {
+ tcg_gen_qemu_st64(regs[r1], o->in2, get_mem_index(s));
+ } else {
+ tcg_gen_qemu_st32(regs[r1], o->in2, get_mem_index(s));
+ }
+ if (r1 == r3) {
+ break;
+ }
+ tcg_gen_add_i64(o->in2, o->in2, tsize);
+ r1 = (r1 + 1) & 15;
+ }
+
+ tcg_temp_free_i64(tsize);
+ return NO_EXIT;
+}
+
+static ExitStatus op_stmh(DisasContext *s, DisasOps *o)
+{
+ int r1 = get_field(s->fields, r1);
+ int r3 = get_field(s->fields, r3);
+ TCGv_i64 t = tcg_temp_new_i64();
+ TCGv_i64 t4 = tcg_const_i64(4);
+ TCGv_i64 t32 = tcg_const_i64(32);
+
+ while (1) {
+ tcg_gen_shl_i64(t, regs[r1], t32);
+ tcg_gen_qemu_st32(t, o->in2, get_mem_index(s));
+ if (r1 == r3) {
+ break;
+ }
+ tcg_gen_add_i64(o->in2, o->in2, t4);
+ r1 = (r1 + 1) & 15;
+ }
+
+ tcg_temp_free_i64(t);
+ tcg_temp_free_i64(t4);
+ tcg_temp_free_i64(t32);
+ return NO_EXIT;
+}
+
+static ExitStatus op_srst(DisasContext *s, DisasOps *o)
+{
+ potential_page_fault(s);
+ gen_helper_srst(o->in1, cpu_env, regs[0], o->in1, o->in2);
+ set_cc_static(s);
+ return_low128(o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_sub(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_sub_i64(o->out, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_subb(DisasContext *s, DisasOps *o)
+{
+ DisasCompare cmp;
+ TCGv_i64 borrow;
+
+ tcg_gen_sub_i64(o->out, o->in1, o->in2);
+
+ /* The !borrow flag is the msb of CC. Since we want the inverse of
+ that, we ask for a comparison of CC=0 | CC=1 -> mask of 8 | 4. */
+ disas_jcc(s, &cmp, 8 | 4);
+ borrow = tcg_temp_new_i64();
+ if (cmp.is_64) {
+ tcg_gen_setcond_i64(cmp.cond, borrow, cmp.u.s64.a, cmp.u.s64.b);
+ } else {
+ TCGv_i32 t = tcg_temp_new_i32();
+ tcg_gen_setcond_i32(cmp.cond, t, cmp.u.s32.a, cmp.u.s32.b);
+ tcg_gen_extu_i32_i64(borrow, t);
+ tcg_temp_free_i32(t);
+ }
+ free_compare(&cmp);
+
+ tcg_gen_sub_i64(o->out, o->out, borrow);
+ tcg_temp_free_i64(borrow);
+ return NO_EXIT;
+}
+
+static ExitStatus op_svc(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 t;
+
+ update_psw_addr(s);
+ update_cc_op(s);
+
+ t = tcg_const_i32(get_field(s->fields, i1) & 0xff);
+ tcg_gen_st_i32(t, cpu_env, offsetof(CPUS390XState, int_svc_code));
+ tcg_temp_free_i32(t);
+
+ t = tcg_const_i32(s->next_pc - s->pc);
+ tcg_gen_st_i32(t, cpu_env, offsetof(CPUS390XState, int_svc_ilen));
+ tcg_temp_free_i32(t);
+
+ gen_exception(EXCP_SVC);
+ return EXIT_NORETURN;
+}
+
+static ExitStatus op_tceb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_tceb(cc_op, o->in1, o->in2);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_tcdb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_tcdb(cc_op, o->in1, o->in2);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_tcxb(DisasContext *s, DisasOps *o)
+{
+ gen_helper_tcxb(cc_op, o->out, o->out2, o->in2);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+#ifndef CONFIG_USER_ONLY
+static ExitStatus op_tprot(DisasContext *s, DisasOps *o)
+{
+ potential_page_fault(s);
+ gen_helper_tprot(cc_op, o->addr1, o->in2);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+#endif
+
+static ExitStatus op_tr(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));
+ potential_page_fault(s);
+ gen_helper_tr(cpu_env, l, o->addr1, o->in2);
+ tcg_temp_free_i32(l);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_tre(DisasContext *s, DisasOps *o)
+{
+ potential_page_fault(s);
+ gen_helper_tre(o->out, cpu_env, o->out, o->out2, o->in2);
+ return_low128(o->out2);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_trt(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));
+ potential_page_fault(s);
+ gen_helper_trt(cc_op, cpu_env, l, o->addr1, o->in2);
+ tcg_temp_free_i32(l);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_unpk(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));
+ potential_page_fault(s);
+ gen_helper_unpk(cpu_env, l, o->addr1, o->in2);
+ tcg_temp_free_i32(l);
+ return NO_EXIT;
+}
+
+static ExitStatus op_xc(DisasContext *s, DisasOps *o)
+{
+ int d1 = get_field(s->fields, d1);
+ int d2 = get_field(s->fields, d2);
+ int b1 = get_field(s->fields, b1);
+ int b2 = get_field(s->fields, b2);
+ int l = get_field(s->fields, l1);
+ TCGv_i32 t32;
+
+ o->addr1 = get_address(s, 0, b1, d1);
+
+ /* If the addresses are identical, this is a store/memset of zero. */
+ if (b1 == b2 && d1 == d2 && (l + 1) <= 32) {
+ o->in2 = tcg_const_i64(0);
+
+ l++;
+ while (l >= 8) {
+ tcg_gen_qemu_st64(o->in2, o->addr1, get_mem_index(s));
+ l -= 8;
+ if (l > 0) {
+ tcg_gen_addi_i64(o->addr1, o->addr1, 8);
+ }
+ }
+ if (l >= 4) {
+ tcg_gen_qemu_st32(o->in2, o->addr1, get_mem_index(s));
+ l -= 4;
+ if (l > 0) {
+ tcg_gen_addi_i64(o->addr1, o->addr1, 4);
+ }
+ }
+ if (l >= 2) {
+ tcg_gen_qemu_st16(o->in2, o->addr1, get_mem_index(s));
+ l -= 2;
+ if (l > 0) {
+ tcg_gen_addi_i64(o->addr1, o->addr1, 2);
+ }
+ }
+ if (l) {
+ tcg_gen_qemu_st8(o->in2, o->addr1, get_mem_index(s));
+ }
+ gen_op_movi_cc(s, 0);
+ return NO_EXIT;
+ }
+
+ /* But in general we'll defer to a helper. */
+ o->in2 = get_address(s, 0, b2, d2);
+ t32 = tcg_const_i32(l);
+ potential_page_fault(s);
+ gen_helper_xc(cc_op, cpu_env, t32, o->addr1, o->in2);
+ tcg_temp_free_i32(t32);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
+static ExitStatus op_xor(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_xor_i64(o->out, o->in1, o->in2);
+ return NO_EXIT;
+}
+
+static ExitStatus op_xori(DisasContext *s, DisasOps *o)
+{
+ int shift = s->insn->data & 0xff;
+ int size = s->insn->data >> 8;
+ uint64_t mask = ((1ull << size) - 1) << shift;
+
+ assert(!o->g_in2);
+ tcg_gen_shli_i64(o->in2, o->in2, shift);
+ tcg_gen_xor_i64(o->out, o->in1, o->in2);
+
+ /* Produce the CC from only the bits manipulated. */
+ tcg_gen_andi_i64(cc_dst, o->out, mask);
+ set_cc_nz_u64(s, cc_dst);
+ return NO_EXIT;
+}
+
+static ExitStatus op_zero(DisasContext *s, DisasOps *o)
+{
+ o->out = tcg_const_i64(0);
+ return NO_EXIT;
+}
+
+static ExitStatus op_zero2(DisasContext *s, DisasOps *o)
+{
+ o->out = tcg_const_i64(0);
+ o->out2 = o->out;
+ o->g_out2 = true;
+ return NO_EXIT;
+}
+
+/* ====================================================================== */
+/* The "Cc OUTput" generators. Given the generated output (and in some cases
+ the original inputs), update the various cc data structures in order to
+ be able to compute the new condition code. */
+
+static void cout_abs32(DisasContext *s, DisasOps *o)
+{
+ gen_op_update1_cc_i64(s, CC_OP_ABS_32, o->out);
+}
+
+static void cout_abs64(DisasContext *s, DisasOps *o)
+{
+ gen_op_update1_cc_i64(s, CC_OP_ABS_64, o->out);
+}
+
+static void cout_adds32(DisasContext *s, DisasOps *o)
+{
+ gen_op_update3_cc_i64(s, CC_OP_ADD_32, o->in1, o->in2, o->out);
+}
+
+static void cout_adds64(DisasContext *s, DisasOps *o)
+{
+ gen_op_update3_cc_i64(s, CC_OP_ADD_64, o->in1, o->in2, o->out);
+}
+
+static void cout_addu32(DisasContext *s, DisasOps *o)
+{
+ gen_op_update3_cc_i64(s, CC_OP_ADDU_32, o->in1, o->in2, o->out);
+}
+
+static void cout_addu64(DisasContext *s, DisasOps *o)
+{
+ gen_op_update3_cc_i64(s, CC_OP_ADDU_64, o->in1, o->in2, o->out);
+}
+
+static void cout_addc32(DisasContext *s, DisasOps *o)
+{
+ gen_op_update3_cc_i64(s, CC_OP_ADDC_32, o->in1, o->in2, o->out);
+}
+
+static void cout_addc64(DisasContext *s, DisasOps *o)
+{
+ gen_op_update3_cc_i64(s, CC_OP_ADDC_64, o->in1, o->in2, o->out);
+}
+
+static void cout_cmps32(DisasContext *s, DisasOps *o)
+{
+ gen_op_update2_cc_i64(s, CC_OP_LTGT_32, o->in1, o->in2);
+}
+
+static void cout_cmps64(DisasContext *s, DisasOps *o)
+{
+ gen_op_update2_cc_i64(s, CC_OP_LTGT_64, o->in1, o->in2);
+}
+
+static void cout_cmpu32(DisasContext *s, DisasOps *o)
+{
+ gen_op_update2_cc_i64(s, CC_OP_LTUGTU_32, o->in1, o->in2);
+}
+
+static void cout_cmpu64(DisasContext *s, DisasOps *o)
+{
+ gen_op_update2_cc_i64(s, CC_OP_LTUGTU_64, o->in1, o->in2);
+}
+
+static void cout_f32(DisasContext *s, DisasOps *o)
+{
+ gen_op_update1_cc_i64(s, CC_OP_NZ_F32, o->out);
+}
+
+static void cout_f64(DisasContext *s, DisasOps *o)
+{
+ gen_op_update1_cc_i64(s, CC_OP_NZ_F64, o->out);
+}
+
+static void cout_f128(DisasContext *s, DisasOps *o)
+{
+ gen_op_update2_cc_i64(s, CC_OP_NZ_F128, o->out, o->out2);
+}
+
+static void cout_nabs32(DisasContext *s, DisasOps *o)
+{
+ gen_op_update1_cc_i64(s, CC_OP_NABS_32, o->out);
+}
+
+static void cout_nabs64(DisasContext *s, DisasOps *o)
+{
+ gen_op_update1_cc_i64(s, CC_OP_NABS_64, o->out);
+}
+
+static void cout_neg32(DisasContext *s, DisasOps *o)
+{
+ gen_op_update1_cc_i64(s, CC_OP_COMP_32, o->out);
+}
+
+static void cout_neg64(DisasContext *s, DisasOps *o)
+{
+ gen_op_update1_cc_i64(s, CC_OP_COMP_64, o->out);
+}
+
+static void cout_nz32(DisasContext *s, DisasOps *o)
+{
+ tcg_gen_ext32u_i64(cc_dst, o->out);
+ gen_op_update1_cc_i64(s, CC_OP_NZ, cc_dst);
+}
+
+static void cout_nz64(DisasContext *s, DisasOps *o)
+{
+ gen_op_update1_cc_i64(s, CC_OP_NZ, o->out);
+}
+
+static void cout_s32(DisasContext *s, DisasOps *o)
+{
+ gen_op_update1_cc_i64(s, CC_OP_LTGT0_32, o->out);
+}
+
+static void cout_s64(DisasContext *s, DisasOps *o)
+{
+ gen_op_update1_cc_i64(s, CC_OP_LTGT0_64, o->out);
+}
+
+static void cout_subs32(DisasContext *s, DisasOps *o)
+{
+ gen_op_update3_cc_i64(s, CC_OP_SUB_32, o->in1, o->in2, o->out);
+}
+
+static void cout_subs64(DisasContext *s, DisasOps *o)
+{
+ gen_op_update3_cc_i64(s, CC_OP_SUB_64, o->in1, o->in2, o->out);
+}
+
+static void cout_subu32(DisasContext *s, DisasOps *o)
+{
+ gen_op_update3_cc_i64(s, CC_OP_SUBU_32, o->in1, o->in2, o->out);
+}
+
+static void cout_subu64(DisasContext *s, DisasOps *o)
+{
+ gen_op_update3_cc_i64(s, CC_OP_SUBU_64, o->in1, o->in2, o->out);
+}
+
+static void cout_subb32(DisasContext *s, DisasOps *o)
+{
+ gen_op_update3_cc_i64(s, CC_OP_SUBB_32, o->in1, o->in2, o->out);
+}
+
+static void cout_subb64(DisasContext *s, DisasOps *o)
+{
+ gen_op_update3_cc_i64(s, CC_OP_SUBB_64, o->in1, o->in2, o->out);
+}
+
+static void cout_tm32(DisasContext *s, DisasOps *o)
+{
+ gen_op_update2_cc_i64(s, CC_OP_TM_32, o->in1, o->in2);
+}
+
+static void cout_tm64(DisasContext *s, DisasOps *o)
+{
+ gen_op_update2_cc_i64(s, CC_OP_TM_64, o->in1, o->in2);
+}
+
+/* ====================================================================== */
+/* The "PREParation" generators. These initialize the DisasOps.OUT fields
+ with the TCG register to which we will write. Used in combination with
+ the "wout" generators, in some cases we need a new temporary, and in
+ some cases we can write to a TCG global. */
+
+static void prep_new(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->out = tcg_temp_new_i64();
+}
+#define SPEC_prep_new 0
+
+static void prep_new_P(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->out = tcg_temp_new_i64();
+ o->out2 = tcg_temp_new_i64();
+}
+#define SPEC_prep_new_P 0
+
+static void prep_r1(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->out = regs[get_field(f, r1)];
+ o->g_out = true;
+}
+#define SPEC_prep_r1 0
+
+static void prep_r1_P(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ int r1 = get_field(f, r1);
+ o->out = regs[r1];
+ o->out2 = regs[r1 + 1];
+ o->g_out = o->g_out2 = true;
+}
+#define SPEC_prep_r1_P SPEC_r1_even
+
+static void prep_f1(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->out = fregs[get_field(f, r1)];
+ o->g_out = true;
+}
+#define SPEC_prep_f1 0
+
+static void prep_x1(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ int r1 = get_field(f, r1);
+ o->out = fregs[r1];
+ o->out2 = fregs[r1 + 2];
+ o->g_out = o->g_out2 = true;
+}
+#define SPEC_prep_x1 SPEC_r1_f128
+
+/* ====================================================================== */
+/* The "Write OUTput" generators. These generally perform some non-trivial
+ copy of data to TCG globals, or to main memory. The trivial cases are
+ generally handled by having a "prep" generator install the TCG global
+ as the destination of the operation. */
+
+static void wout_r1(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ store_reg(get_field(f, r1), o->out);
+}
+#define SPEC_wout_r1 0
+
+static void wout_r1_8(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ int r1 = get_field(f, r1);
+ tcg_gen_deposit_i64(regs[r1], regs[r1], o->out, 0, 8);
+}
+#define SPEC_wout_r1_8 0
+
+static void wout_r1_16(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ int r1 = get_field(f, r1);
+ tcg_gen_deposit_i64(regs[r1], regs[r1], o->out, 0, 16);
+}
+#define SPEC_wout_r1_16 0
+
+static void wout_r1_32(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ store_reg32_i64(get_field(f, r1), o->out);
+}
+#define SPEC_wout_r1_32 0
+
+static void wout_r1_32h(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ store_reg32h_i64(get_field(f, r1), o->out);
+}
+#define SPEC_wout_r1_32h 0
+
+static void wout_r1_P32(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ int r1 = get_field(f, r1);
+ store_reg32_i64(r1, o->out);
+ store_reg32_i64(r1 + 1, o->out2);
+}
+#define SPEC_wout_r1_P32 SPEC_r1_even
+
+static void wout_r1_D32(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ int r1 = get_field(f, r1);
+ store_reg32_i64(r1 + 1, o->out);
+ tcg_gen_shri_i64(o->out, o->out, 32);
+ store_reg32_i64(r1, o->out);
+}
+#define SPEC_wout_r1_D32 SPEC_r1_even
+
+static void wout_e1(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ store_freg32_i64(get_field(f, r1), o->out);
+}
+#define SPEC_wout_e1 0
+
+static void wout_f1(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ store_freg(get_field(f, r1), o->out);
+}
+#define SPEC_wout_f1 0
+
+static void wout_x1(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ int f1 = get_field(s->fields, r1);
+ store_freg(f1, o->out);
+ store_freg(f1 + 2, o->out2);
+}
+#define SPEC_wout_x1 SPEC_r1_f128
+
+static void wout_cond_r1r2_32(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ if (get_field(f, r1) != get_field(f, r2)) {
+ store_reg32_i64(get_field(f, r1), o->out);
+ }
+}
+#define SPEC_wout_cond_r1r2_32 0
+
+static void wout_cond_e1e2(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ if (get_field(f, r1) != get_field(f, r2)) {
+ store_freg32_i64(get_field(f, r1), o->out);
+ }
+}
+#define SPEC_wout_cond_e1e2 0
+
+static void wout_m1_8(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ tcg_gen_qemu_st8(o->out, o->addr1, get_mem_index(s));
+}
+#define SPEC_wout_m1_8 0
+
+static void wout_m1_16(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ tcg_gen_qemu_st16(o->out, o->addr1, get_mem_index(s));
+}
+#define SPEC_wout_m1_16 0
+
+static void wout_m1_32(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ tcg_gen_qemu_st32(o->out, o->addr1, get_mem_index(s));
+}
+#define SPEC_wout_m1_32 0
+
+static void wout_m1_64(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ tcg_gen_qemu_st64(o->out, o->addr1, get_mem_index(s));
+}
+#define SPEC_wout_m1_64 0
+
+static void wout_m2_32(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ tcg_gen_qemu_st32(o->out, o->in2, get_mem_index(s));
+}
+#define SPEC_wout_m2_32 0
+
+static void wout_m2_32_r1_atomic(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ /* XXX release reservation */
+ tcg_gen_qemu_st32(o->out, o->addr1, get_mem_index(s));
+ store_reg32_i64(get_field(f, r1), o->in2);
+}
+#define SPEC_wout_m2_32_r1_atomic 0
+
+static void wout_m2_64_r1_atomic(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ /* XXX release reservation */
+ tcg_gen_qemu_st64(o->out, o->addr1, get_mem_index(s));
+ store_reg(get_field(f, r1), o->in2);
+}
+#define SPEC_wout_m2_64_r1_atomic 0
+
+/* ====================================================================== */
+/* The "INput 1" generators. These load the first operand to an insn. */
+
+static void in1_r1(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in1 = load_reg(get_field(f, r1));
+}
+#define SPEC_in1_r1 0
+
+static void in1_r1_o(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in1 = regs[get_field(f, r1)];
+ o->g_in1 = true;
+}
+#define SPEC_in1_r1_o 0
+
+static void in1_r1_32s(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in1 = tcg_temp_new_i64();
+ tcg_gen_ext32s_i64(o->in1, regs[get_field(f, r1)]);
+}
+#define SPEC_in1_r1_32s 0
+
+static void in1_r1_32u(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in1 = tcg_temp_new_i64();
+ tcg_gen_ext32u_i64(o->in1, regs[get_field(f, r1)]);
+}
+#define SPEC_in1_r1_32u 0
+
+static void in1_r1_sr32(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in1 = tcg_temp_new_i64();
+ tcg_gen_shri_i64(o->in1, regs[get_field(f, r1)], 32);
+}
+#define SPEC_in1_r1_sr32 0
+
+static void in1_r1p1(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in1 = load_reg(get_field(f, r1) + 1);
+}
+#define SPEC_in1_r1p1 SPEC_r1_even
+
+static void in1_r1p1_32s(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in1 = tcg_temp_new_i64();
+ tcg_gen_ext32s_i64(o->in1, regs[get_field(f, r1) + 1]);
+}
+#define SPEC_in1_r1p1_32s SPEC_r1_even
+
+static void in1_r1p1_32u(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in1 = tcg_temp_new_i64();
+ tcg_gen_ext32u_i64(o->in1, regs[get_field(f, r1) + 1]);
+}
+#define SPEC_in1_r1p1_32u SPEC_r1_even
+
+static void in1_r1_D32(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ int r1 = get_field(f, r1);
+ o->in1 = tcg_temp_new_i64();
+ tcg_gen_concat32_i64(o->in1, regs[r1 + 1], regs[r1]);
+}
+#define SPEC_in1_r1_D32 SPEC_r1_even
+
+static void in1_r2(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in1 = load_reg(get_field(f, r2));
+}
+#define SPEC_in1_r2 0
+
+static void in1_r2_sr32(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in1 = tcg_temp_new_i64();
+ tcg_gen_shri_i64(o->in1, regs[get_field(f, r2)], 32);
+}
+#define SPEC_in1_r2_sr32 0
+
+static void in1_r3(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in1 = load_reg(get_field(f, r3));
+}
+#define SPEC_in1_r3 0
+
+static void in1_r3_o(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in1 = regs[get_field(f, r3)];
+ o->g_in1 = true;
+}
+#define SPEC_in1_r3_o 0
+
+static void in1_r3_32s(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in1 = tcg_temp_new_i64();
+ tcg_gen_ext32s_i64(o->in1, regs[get_field(f, r3)]);
+}
+#define SPEC_in1_r3_32s 0
+
+static void in1_r3_32u(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in1 = tcg_temp_new_i64();
+ tcg_gen_ext32u_i64(o->in1, regs[get_field(f, r3)]);
+}
+#define SPEC_in1_r3_32u 0
+
+static void in1_r3_D32(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ int r3 = get_field(f, r3);
+ o->in1 = tcg_temp_new_i64();
+ tcg_gen_concat32_i64(o->in1, regs[r3 + 1], regs[r3]);
+}
+#define SPEC_in1_r3_D32 SPEC_r3_even
+
+static void in1_e1(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in1 = load_freg32_i64(get_field(f, r1));
+}
+#define SPEC_in1_e1 0
+
+static void in1_f1_o(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in1 = fregs[get_field(f, r1)];
+ o->g_in1 = true;
+}
+#define SPEC_in1_f1_o 0
+
+static void in1_x1_o(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ int r1 = get_field(f, r1);
+ o->out = fregs[r1];
+ o->out2 = fregs[r1 + 2];
+ o->g_out = o->g_out2 = true;
+}
+#define SPEC_in1_x1_o SPEC_r1_f128
+
+static void in1_f3_o(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in1 = fregs[get_field(f, r3)];
+ o->g_in1 = true;
+}
+#define SPEC_in1_f3_o 0
+
+static void in1_la1(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->addr1 = get_address(s, 0, get_field(f, b1), get_field(f, d1));
+}
+#define SPEC_in1_la1 0
+
+static void in1_la2(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ int x2 = have_field(f, x2) ? get_field(f, x2) : 0;
+ o->addr1 = get_address(s, x2, get_field(f, b2), get_field(f, d2));
+}
+#define SPEC_in1_la2 0
+
+static void in1_m1_8u(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ in1_la1(s, f, o);
+ o->in1 = tcg_temp_new_i64();
+ tcg_gen_qemu_ld8u(o->in1, o->addr1, get_mem_index(s));
+}
+#define SPEC_in1_m1_8u 0
+
+static void in1_m1_16s(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ in1_la1(s, f, o);
+ o->in1 = tcg_temp_new_i64();
+ tcg_gen_qemu_ld16s(o->in1, o->addr1, get_mem_index(s));
+}
+#define SPEC_in1_m1_16s 0
+
+static void in1_m1_16u(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ in1_la1(s, f, o);
+ o->in1 = tcg_temp_new_i64();
+ tcg_gen_qemu_ld16u(o->in1, o->addr1, get_mem_index(s));
+}
+#define SPEC_in1_m1_16u 0
+
+static void in1_m1_32s(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ in1_la1(s, f, o);
+ o->in1 = tcg_temp_new_i64();
+ tcg_gen_qemu_ld32s(o->in1, o->addr1, get_mem_index(s));
+}
+#define SPEC_in1_m1_32s 0
+
+static void in1_m1_32u(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ in1_la1(s, f, o);
+ o->in1 = tcg_temp_new_i64();
+ tcg_gen_qemu_ld32u(o->in1, o->addr1, get_mem_index(s));
+}
+#define SPEC_in1_m1_32u 0
+
+static void in1_m1_64(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ in1_la1(s, f, o);
+ o->in1 = tcg_temp_new_i64();
+ tcg_gen_qemu_ld64(o->in1, o->addr1, get_mem_index(s));
+}
+#define SPEC_in1_m1_64 0
+
+/* ====================================================================== */
+/* The "INput 2" generators. These load the second operand to an insn. */
+
+static void in2_r1_o(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = regs[get_field(f, r1)];
+ o->g_in2 = true;
+}
+#define SPEC_in2_r1_o 0
+
+static void in2_r1_16u(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = tcg_temp_new_i64();
+ tcg_gen_ext16u_i64(o->in2, regs[get_field(f, r1)]);
+}
+#define SPEC_in2_r1_16u 0
+
+static void in2_r1_32u(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = tcg_temp_new_i64();
+ tcg_gen_ext32u_i64(o->in2, regs[get_field(f, r1)]);
+}
+#define SPEC_in2_r1_32u 0
+
+static void in2_r1_D32(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ int r1 = get_field(f, r1);
+ o->in2 = tcg_temp_new_i64();
+ tcg_gen_concat32_i64(o->in2, regs[r1 + 1], regs[r1]);
+}
+#define SPEC_in2_r1_D32 SPEC_r1_even
+
+static void in2_r2(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = load_reg(get_field(f, r2));
+}
+#define SPEC_in2_r2 0
+
+static void in2_r2_o(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = regs[get_field(f, r2)];
+ o->g_in2 = true;
+}
+#define SPEC_in2_r2_o 0
+
+static void in2_r2_nz(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ int r2 = get_field(f, r2);
+ if (r2 != 0) {
+ o->in2 = load_reg(r2);
+ }
+}
+#define SPEC_in2_r2_nz 0
+
+static void in2_r2_8s(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = tcg_temp_new_i64();
+ tcg_gen_ext8s_i64(o->in2, regs[get_field(f, r2)]);
+}
+#define SPEC_in2_r2_8s 0
+
+static void in2_r2_8u(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = tcg_temp_new_i64();
+ tcg_gen_ext8u_i64(o->in2, regs[get_field(f, r2)]);
+}
+#define SPEC_in2_r2_8u 0
+
+static void in2_r2_16s(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = tcg_temp_new_i64();
+ tcg_gen_ext16s_i64(o->in2, regs[get_field(f, r2)]);
+}
+#define SPEC_in2_r2_16s 0
+
+static void in2_r2_16u(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = tcg_temp_new_i64();
+ tcg_gen_ext16u_i64(o->in2, regs[get_field(f, r2)]);
+}
+#define SPEC_in2_r2_16u 0
+
+static void in2_r3(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = load_reg(get_field(f, r3));
+}
+#define SPEC_in2_r3 0
+
+static void in2_r3_sr32(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = tcg_temp_new_i64();
+ tcg_gen_shri_i64(o->in2, regs[get_field(f, r3)], 32);
+}
+#define SPEC_in2_r3_sr32 0
+
+static void in2_r2_32s(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = tcg_temp_new_i64();
+ tcg_gen_ext32s_i64(o->in2, regs[get_field(f, r2)]);
+}
+#define SPEC_in2_r2_32s 0
+
+static void in2_r2_32u(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = tcg_temp_new_i64();
+ tcg_gen_ext32u_i64(o->in2, regs[get_field(f, r2)]);
+}
+#define SPEC_in2_r2_32u 0
+
+static void in2_r2_sr32(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = tcg_temp_new_i64();
+ tcg_gen_shri_i64(o->in2, regs[get_field(f, r2)], 32);
+}
+#define SPEC_in2_r2_sr32 0
+
+static void in2_e2(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = load_freg32_i64(get_field(f, r2));
+}
+#define SPEC_in2_e2 0
+
+static void in2_f2_o(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = fregs[get_field(f, r2)];
+ o->g_in2 = true;
+}
+#define SPEC_in2_f2_o 0
+
+static void in2_x2_o(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ int r2 = get_field(f, r2);
+ o->in1 = fregs[r2];
+ o->in2 = fregs[r2 + 2];
+ o->g_in1 = o->g_in2 = true;
+}
+#define SPEC_in2_x2_o SPEC_r2_f128
+
+static void in2_ra2(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = get_address(s, 0, get_field(f, r2), 0);
+}
+#define SPEC_in2_ra2 0
+
+static void in2_a2(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ int x2 = have_field(f, x2) ? get_field(f, x2) : 0;
+ o->in2 = get_address(s, x2, get_field(f, b2), get_field(f, d2));
+}
+#define SPEC_in2_a2 0
+
+static void in2_ri2(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = tcg_const_i64(s->pc + (int64_t)get_field(f, i2) * 2);
+}
+#define SPEC_in2_ri2 0
+
+static void in2_sh32(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ help_l2_shift(s, f, o, 31);
+}
+#define SPEC_in2_sh32 0
+
+static void in2_sh64(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ help_l2_shift(s, f, o, 63);
+}
+#define SPEC_in2_sh64 0
+
+static void in2_m2_8u(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ in2_a2(s, f, o);
+ tcg_gen_qemu_ld8u(o->in2, o->in2, get_mem_index(s));
+}
+#define SPEC_in2_m2_8u 0
+
+static void in2_m2_16s(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ in2_a2(s, f, o);
+ tcg_gen_qemu_ld16s(o->in2, o->in2, get_mem_index(s));
+}
+#define SPEC_in2_m2_16s 0
+
+static void in2_m2_16u(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ in2_a2(s, f, o);
+ tcg_gen_qemu_ld16u(o->in2, o->in2, get_mem_index(s));
+}
+#define SPEC_in2_m2_16u 0
+
+static void in2_m2_32s(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ in2_a2(s, f, o);
+ tcg_gen_qemu_ld32s(o->in2, o->in2, get_mem_index(s));
+}
+#define SPEC_in2_m2_32s 0
+
+static void in2_m2_32u(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ in2_a2(s, f, o);
+ tcg_gen_qemu_ld32u(o->in2, o->in2, get_mem_index(s));
+}
+#define SPEC_in2_m2_32u 0
+
+static void in2_m2_64(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ in2_a2(s, f, o);
+ tcg_gen_qemu_ld64(o->in2, o->in2, get_mem_index(s));
+}
+#define SPEC_in2_m2_64 0
+
+static void in2_mri2_16u(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ in2_ri2(s, f, o);
+ tcg_gen_qemu_ld16u(o->in2, o->in2, get_mem_index(s));
+}
+#define SPEC_in2_mri2_16u 0
+
+static void in2_mri2_32s(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ in2_ri2(s, f, o);
+ tcg_gen_qemu_ld32s(o->in2, o->in2, get_mem_index(s));
+}
+#define SPEC_in2_mri2_32s 0
+
+static void in2_mri2_32u(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ in2_ri2(s, f, o);
+ tcg_gen_qemu_ld32u(o->in2, o->in2, get_mem_index(s));
+}
+#define SPEC_in2_mri2_32u 0
+
+static void in2_mri2_64(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ in2_ri2(s, f, o);
+ tcg_gen_qemu_ld64(o->in2, o->in2, get_mem_index(s));
+}
+#define SPEC_in2_mri2_64 0
+
+static void in2_m2_32s_atomic(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ /* XXX should reserve the address */
+ in1_la2(s, f, o);
+ o->in2 = tcg_temp_new_i64();
+ tcg_gen_qemu_ld32s(o->in2, o->addr1, get_mem_index(s));
+}
+#define SPEC_in2_m2_32s_atomic 0
+
+static void in2_m2_64_atomic(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ /* XXX should reserve the address */
+ in1_la2(s, f, o);
+ o->in2 = tcg_temp_new_i64();
+ tcg_gen_qemu_ld64(o->in2, o->addr1, get_mem_index(s));
+}
+#define SPEC_in2_m2_64_atomic 0
+
+static void in2_i2(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = tcg_const_i64(get_field(f, i2));
+}
+#define SPEC_in2_i2 0
+
+static void in2_i2_8u(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = tcg_const_i64((uint8_t)get_field(f, i2));
+}
+#define SPEC_in2_i2_8u 0
+
+static void in2_i2_16u(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = tcg_const_i64((uint16_t)get_field(f, i2));
+}
+#define SPEC_in2_i2_16u 0
+
+static void in2_i2_32u(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = tcg_const_i64((uint32_t)get_field(f, i2));
+}
+#define SPEC_in2_i2_32u 0
+
+static void in2_i2_16u_shl(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ uint64_t i2 = (uint16_t)get_field(f, i2);
+ o->in2 = tcg_const_i64(i2 << s->insn->data);
+}
+#define SPEC_in2_i2_16u_shl 0
+
+static void in2_i2_32u_shl(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ uint64_t i2 = (uint32_t)get_field(f, i2);
+ o->in2 = tcg_const_i64(i2 << s->insn->data);
+}
+#define SPEC_in2_i2_32u_shl 0
+
+#ifndef CONFIG_USER_ONLY
+static void in2_insn(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+ o->in2 = tcg_const_i64(s->fields->raw_insn);
+}
+#define SPEC_in2_insn 0
+#endif
+
+/* ====================================================================== */
+
+/* Find opc within the table of insns. This is formulated as a switch
+ statement so that (1) we get compile-time notice of cut-paste errors
+ for duplicated opcodes, and (2) the compiler generates the binary
+ search tree, rather than us having to post-process the table. */
+
+#define C(OPC, NM, FT, FC, I1, I2, P, W, OP, CC) \
+ D(OPC, NM, FT, FC, I1, I2, P, W, OP, CC, 0)
+
+#define D(OPC, NM, FT, FC, I1, I2, P, W, OP, CC, D) insn_ ## NM,
+
+enum DisasInsnEnum {
+#include "insn-data.def"
+};
+
+#undef D
+#define D(OPC, NM, FT, FC, I1, I2, P, W, OP, CC, D) { \
+ .opc = OPC, \
+ .fmt = FMT_##FT, \
+ .fac = FAC_##FC, \
+ .spec = SPEC_in1_##I1 | SPEC_in2_##I2 | SPEC_prep_##P | SPEC_wout_##W, \
+ .name = #NM, \
+ .help_in1 = in1_##I1, \
+ .help_in2 = in2_##I2, \
+ .help_prep = prep_##P, \
+ .help_wout = wout_##W, \
+ .help_cout = cout_##CC, \
+ .help_op = op_##OP, \
+ .data = D \
+ },
+
+/* Allow 0 to be used for NULL in the table below. */
+#define in1_0 NULL
+#define in2_0 NULL
+#define prep_0 NULL
+#define wout_0 NULL
+#define cout_0 NULL
+#define op_0 NULL
+
+#define SPEC_in1_0 0
+#define SPEC_in2_0 0
+#define SPEC_prep_0 0
+#define SPEC_wout_0 0
+
+static const DisasInsn insn_info[] = {
+#include "insn-data.def"
+};
+
+#undef D
+#define D(OPC, NM, FT, FC, I1, I2, P, W, OP, CC, D) \
+ case OPC: return &insn_info[insn_ ## NM];
+
+static const DisasInsn *lookup_opc(uint16_t opc)
+{
+ switch (opc) {
+#include "insn-data.def"
+ default:
+ return NULL;
+ }
+}
+
+#undef D
+#undef C
+
+/* Extract a field from the insn. The INSN should be left-aligned in
+ the uint64_t so that we can more easily utilize the big-bit-endian
+ definitions we extract from the Principals of Operation. */
+
+static void extract_field(DisasFields *o, const DisasField *f, uint64_t insn)
+{
+ uint32_t r, m;
+
+ if (f->size == 0) {
+ return;
+ }
+
+ /* Zero extract the field from the insn. */
+ r = (insn << f->beg) >> (64 - f->size);
+
+ /* Sign-extend, or un-swap the field as necessary. */
+ switch (f->type) {
+ case 0: /* unsigned */
+ break;
+ case 1: /* signed */
+ assert(f->size <= 32);
+ m = 1u << (f->size - 1);
+ r = (r ^ m) - m;
+ break;
+ case 2: /* dl+dh split, signed 20 bit. */
+ r = ((int8_t)r << 12) | (r >> 8);
+ break;
+ default:
+ abort();
+ }
+
+ /* Validate that the "compressed" encoding we selected above is valid.
+ I.e. we havn't make two different original fields overlap. */
+ assert(((o->presentC >> f->indexC) & 1) == 0);
+ o->presentC |= 1 << f->indexC;
+ o->presentO |= 1 << f->indexO;
+
+ o->c[f->indexC] = r;
+}
+
+/* Lookup the insn at the current PC, extracting the operands into O and
+ returning the info struct for the insn. Returns NULL for invalid insn. */
+
+static const DisasInsn *extract_insn(CPUS390XState *env, DisasContext *s,
+ DisasFields *f)
+{
+ uint64_t insn, pc = s->pc;
+ int op, op2, ilen;
+ const DisasInsn *info;
+
+ insn = ld_code2(env, pc);
+ op = (insn >> 8) & 0xff;
+ ilen = get_ilen(op);
+ s->next_pc = s->pc + ilen;
+
+ switch (ilen) {
+ case 2:
+ insn = insn << 48;
+ break;
+ case 4:
+ insn = ld_code4(env, pc) << 32;
+ break;
+ case 6:
+ insn = (insn << 48) | (ld_code4(env, pc + 2) << 16);
+ break;
+ default:
+ abort();
+ }
+
+ /* We can't actually determine the insn format until we've looked up
+ the full insn opcode. Which we can't do without locating the
+ secondary opcode. Assume by default that OP2 is at bit 40; for
+ those smaller insns that don't actually have a secondary opcode
+ this will correctly result in OP2 = 0. */
+ switch (op) {
+ case 0x01: /* E */
+ case 0x80: /* S */
+ case 0x82: /* S */
+ case 0x93: /* S */
+ case 0xb2: /* S, RRF, RRE */
+ case 0xb3: /* RRE, RRD, RRF */
+ case 0xb9: /* RRE, RRF */
+ case 0xe5: /* SSE, SIL */
+ op2 = (insn << 8) >> 56;
+ break;
+ case 0xa5: /* RI */
+ case 0xa7: /* RI */
+ case 0xc0: /* RIL */
+ case 0xc2: /* RIL */
+ case 0xc4: /* RIL */
+ case 0xc6: /* RIL */
+ case 0xc8: /* SSF */
+ case 0xcc: /* RIL */
+ op2 = (insn << 12) >> 60;
+ break;
+ case 0xd0 ... 0xdf: /* SS */
+ case 0xe1: /* SS */
+ case 0xe2: /* SS */
+ case 0xe8: /* SS */
+ case 0xe9: /* SS */
+ case 0xea: /* SS */
+ case 0xee ... 0xf3: /* SS */
+ case 0xf8 ... 0xfd: /* SS */
+ op2 = 0;
+ break;
+ default:
+ op2 = (insn << 40) >> 56;
+ break;
+ }
+
+ memset(f, 0, sizeof(*f));
+ f->raw_insn = insn;
+ f->op = op;
+ f->op2 = op2;
+
+ /* Lookup the instruction. */
+ info = lookup_opc(op << 8 | op2);
+
+ /* If we found it, extract the operands. */
+ if (info != NULL) {
+ DisasFormat fmt = info->fmt;
+ int i;
+
+ for (i = 0; i < NUM_C_FIELD; ++i) {
+ extract_field(f, &format_info[fmt].op[i], insn);
+ }
+ }
+ return info;
+}
+
+static ExitStatus translate_one(CPUS390XState *env, DisasContext *s)
+{
+ const DisasInsn *insn;
+ ExitStatus ret = NO_EXIT;
+ DisasFields f;
+ DisasOps o;
+
+ /* Search for the insn in the table. */
+ insn = extract_insn(env, s, &f);
+
+ /* Not found means unimplemented/illegal opcode. */
+ if (insn == NULL) {
+ qemu_log_mask(LOG_UNIMP, "unimplemented opcode 0x%02x%02x\n",
+ f.op, f.op2);
+ gen_illegal_opcode(s);
+ return EXIT_NORETURN;
+ }
+
+#ifndef CONFIG_USER_ONLY
+ if (s->tb->flags & FLAG_MASK_PER) {
+ TCGv_i64 addr = tcg_const_i64(s->pc);
+ gen_helper_per_ifetch(cpu_env, addr);
+ tcg_temp_free_i64(addr);
+ }
+#endif
+
+ /* Check for insn specification exceptions. */
+ if (insn->spec) {
+ int spec = insn->spec, excp = 0, r;
+
+ if (spec & SPEC_r1_even) {
+ r = get_field(&f, r1);
+ if (r & 1) {
+ excp = PGM_SPECIFICATION;
+ }
+ }
+ if (spec & SPEC_r2_even) {
+ r = get_field(&f, r2);
+ if (r & 1) {
+ excp = PGM_SPECIFICATION;
+ }
+ }
+ if (spec & SPEC_r3_even) {
+ r = get_field(&f, r3);
+ if (r & 1) {
+ excp = PGM_SPECIFICATION;
+ }
+ }
+ if (spec & SPEC_r1_f128) {
+ r = get_field(&f, r1);
+ if (r > 13) {
+ excp = PGM_SPECIFICATION;
+ }
+ }
+ if (spec & SPEC_r2_f128) {
+ r = get_field(&f, r2);
+ if (r > 13) {
+ excp = PGM_SPECIFICATION;
+ }
+ }
+ if (excp) {
+ gen_program_exception(s, excp);
+ return EXIT_NORETURN;
+ }
+ }
+
+ /* Set up the strutures we use to communicate with the helpers. */
+ s->insn = insn;
+ s->fields = &f;
+ o.g_out = o.g_out2 = o.g_in1 = o.g_in2 = false;
+ TCGV_UNUSED_I64(o.out);
+ TCGV_UNUSED_I64(o.out2);
+ TCGV_UNUSED_I64(o.in1);
+ TCGV_UNUSED_I64(o.in2);
+ TCGV_UNUSED_I64(o.addr1);
+
+ /* Implement the instruction. */
+ if (insn->help_in1) {
+ insn->help_in1(s, &f, &o);
+ }
+ if (insn->help_in2) {
+ insn->help_in2(s, &f, &o);
+ }
+ if (insn->help_prep) {
+ insn->help_prep(s, &f, &o);
+ }
+ if (insn->help_op) {
+ ret = insn->help_op(s, &o);
+ }
+ if (insn->help_wout) {
+ insn->help_wout(s, &f, &o);
+ }
+ if (insn->help_cout) {
+ insn->help_cout(s, &o);
+ }
+
+ /* Free any temporaries created by the helpers. */
+ if (!TCGV_IS_UNUSED_I64(o.out) && !o.g_out) {
+ tcg_temp_free_i64(o.out);
+ }
+ if (!TCGV_IS_UNUSED_I64(o.out2) && !o.g_out2) {
+ tcg_temp_free_i64(o.out2);
+ }
+ if (!TCGV_IS_UNUSED_I64(o.in1) && !o.g_in1) {
+ tcg_temp_free_i64(o.in1);
+ }
+ if (!TCGV_IS_UNUSED_I64(o.in2) && !o.g_in2) {
+ tcg_temp_free_i64(o.in2);
+ }
+ if (!TCGV_IS_UNUSED_I64(o.addr1)) {
+ tcg_temp_free_i64(o.addr1);
+ }
+
+#ifndef CONFIG_USER_ONLY
+ if (s->tb->flags & FLAG_MASK_PER) {
+ /* An exception might be triggered, save PSW if not already done. */
+ if (ret == NO_EXIT || ret == EXIT_PC_STALE) {
+ tcg_gen_movi_i64(psw_addr, s->next_pc);
+ }
+
+ /* Save off cc. */
+ update_cc_op(s);
+
+ /* Call the helper to check for a possible PER exception. */
+ gen_helper_per_check_exception(cpu_env);
+ }
+#endif
+
+ /* Advance to the next instruction. */
+ s->pc = s->next_pc;
+ return ret;
+}
+
+static inline void gen_intermediate_code_internal(S390CPU *cpu,
+ TranslationBlock *tb,
+ bool search_pc)
+{
+ CPUState *cs = CPU(cpu);
+ CPUS390XState *env = &cpu->env;
+ DisasContext dc;
+ target_ulong pc_start;
+ uint64_t next_page_start;
+ int j, lj = -1;
+ int num_insns, max_insns;
+ CPUBreakpoint *bp;
+ ExitStatus status;
+ bool do_debug;
+
+ pc_start = tb->pc;
+
+ /* 31-bit mode */
+ if (!(tb->flags & FLAG_MASK_64)) {
+ pc_start &= 0x7fffffff;
+ }
+
+ dc.tb = tb;
+ dc.pc = pc_start;
+ dc.cc_op = CC_OP_DYNAMIC;
+ do_debug = dc.singlestep_enabled = cs->singlestep_enabled;
+
+ next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
+
+ num_insns = 0;
+ max_insns = tb->cflags & CF_COUNT_MASK;
+ if (max_insns == 0) {
+ max_insns = CF_COUNT_MASK;
+ }
+
+ gen_tb_start(tb);
+
+ do {
+ if (search_pc) {
+ j = tcg_op_buf_count();
+ if (lj < j) {
+ lj++;
+ while (lj < j) {
+ tcg_ctx.gen_opc_instr_start[lj++] = 0;
+ }
+ }
+ tcg_ctx.gen_opc_pc[lj] = dc.pc;
+ gen_opc_cc_op[lj] = dc.cc_op;
+ tcg_ctx.gen_opc_instr_start[lj] = 1;
+ tcg_ctx.gen_opc_icount[lj] = num_insns;
+ }
+ if (++num_insns == max_insns && (tb->cflags & CF_LAST_IO)) {
+ gen_io_start();
+ }
+
+ if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP | CPU_LOG_TB_OP_OPT))) {
+ tcg_gen_debug_insn_start(dc.pc);
+ }
+
+ status = NO_EXIT;
+ if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
+ QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
+ if (bp->pc == dc.pc) {
+ status = EXIT_PC_STALE;
+ do_debug = true;
+ break;
+ }
+ }
+ }
+ if (status == NO_EXIT) {
+ status = translate_one(env, &dc);
+ }
+
+ /* If we reach a page boundary, are single stepping,
+ or exhaust instruction count, stop generation. */
+ if (status == NO_EXIT
+ && (dc.pc >= next_page_start
+ || tcg_op_buf_full()
+ || num_insns >= max_insns
+ || singlestep
+ || cs->singlestep_enabled)) {
+ status = EXIT_PC_STALE;
+ }
+ } while (status == NO_EXIT);
+
+ if (tb->cflags & CF_LAST_IO) {
+ gen_io_end();
+ }
+
+ switch (status) {
+ case EXIT_GOTO_TB:
+ case EXIT_NORETURN:
+ break;
+ case EXIT_PC_STALE:
+ update_psw_addr(&dc);
+ /* FALLTHRU */
+ case EXIT_PC_UPDATED:
+ /* Next TB starts off with CC_OP_DYNAMIC, so make sure the
+ cc op type is in env */
+ update_cc_op(&dc);
+ /* Exit the TB, either by raising a debug exception or by return. */
+ if (do_debug) {
+ gen_exception(EXCP_DEBUG);
+ } else {
+ tcg_gen_exit_tb(0);
+ }
+ break;
+ default:
+ abort();
+ }
+
+ gen_tb_end(tb, num_insns);
+
+ if (search_pc) {
+ j = tcg_op_buf_count();
+ lj++;
+ while (lj <= j) {
+ tcg_ctx.gen_opc_instr_start[lj++] = 0;
+ }
+ } else {
+ tb->size = dc.pc - pc_start;
+ tb->icount = num_insns;
+ }
+
+#if defined(S390X_DEBUG_DISAS)
+ if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
+ qemu_log("IN: %s\n", lookup_symbol(pc_start));
+ log_target_disas(cs, pc_start, dc.pc - pc_start, 1);
+ qemu_log("\n");
+ }
+#endif
+}
+
+void gen_intermediate_code (CPUS390XState *env, struct TranslationBlock *tb)
+{
+ gen_intermediate_code_internal(s390_env_get_cpu(env), tb, false);
+}
+
+void gen_intermediate_code_pc (CPUS390XState *env, struct TranslationBlock *tb)
+{
+ gen_intermediate_code_internal(s390_env_get_cpu(env), tb, true);
+}
+
+void restore_state_to_opc(CPUS390XState *env, TranslationBlock *tb, int pc_pos)
+{
+ int cc_op;
+ env->psw.addr = tcg_ctx.gen_opc_pc[pc_pos];
+ cc_op = gen_opc_cc_op[pc_pos];
+ if ((cc_op != CC_OP_DYNAMIC) && (cc_op != CC_OP_STATIC)) {
+ env->cc_op = cc_op;
+ }
+}
Code Review / kvmfornfv.git / blobdiff