Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / arc / lib / memcpy-700.S

diff --git a/qemu/roms/u-boot/arch/arc/lib/memcpy-700.S b/qemu/roms/u-boot/arch/arc/lib/memcpy-700.S
new file mode 100644 (file)
index 0000000..51dd73a
--- /dev/null
+++ b/qemu/roms/u-boot/arch/arc/lib/memcpy-700.S
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+.global memcpy
+.align 4
+memcpy:
+       or      %r3, %r0, %r1
+       asl_s   %r3, %r3, 30
+       mov_s   %r5, %r0
+       brls.d  %r2, %r3, .Lcopy_bytewise
+       sub.f   %r3, %r2, 1
+       ld_s    %r12, [%r1, 0]
+       asr.f   %lp_count, %r3, 3
+       bbit0.d %r3, 2, .Lnox4
+       bmsk_s  %r2, %r2, 1
+       st.ab   %r12, [%r5, 4]
+       ld.a    %r12, [%r1, 4]
+.Lnox4:
+       lppnz   .Lendloop
+       ld_s    %r3, [%r1, 4]
+       st.ab   %r12, [%r5, 4]
+       ld.a    %r12, [%r1, 8]
+       st.ab   %r3, [%r5, 4]
+.Lendloop:
+       breq    %r2, 0, .Last_store
+       ld      %r3, [%r5, 0]
+#ifdef __LITTLE_ENDIAN__
+       add3    %r2, -1, %r2
+       /* uses long immediate */
+       xor_s   %r12, %r12, %r3
+       bmsk    %r12, %r12, %r2
+       xor_s   %r12, %r12, %r3
+#else /* __BIG_ENDIAN__ */
+       sub3    %r2, 31, %r2
+       /* uses long immediate */
+       xor_s   %r3, %r3, %r12
+       bmsk    %r3, %r3, %r2
+       xor_s   %r12, %r12, %r3
+#endif /* _ENDIAN__ */
+.Last_store:
+       j_s.d   [%blink]
+       st      %r12, [%r5, 0]
+
+       .balign 4
+.Lcopy_bytewise:
+       jcs     [%blink]
+       ldb_s   %r12, [%r1, 0]
+       lsr.f   %lp_count, %r3
+       bhs_s   .Lnox1
+       stb.ab  %r12, [%r5, 1]
+       ldb.a   %r12, [%r1, 1]
+.Lnox1:
+       lppnz   .Lendbloop
+       ldb_s   %r3, [%r1, 1]
+       stb.ab  %r12, [%r5, 1]
+       ldb.a   %r12, [%r1, 2]
+       stb.ab  %r3, [%r5, 1]
+.Lendbloop:
+       j_s.d   [%blink]
+       stb     %r12, [%r5, 0]