--- /dev/null
+#include "io.h"
+
+int main(void)
+{
+ long long rd, rs, rt;
+ long long dsp;
+ long long result;
+
+ rs = 0xFFFFFFFF;
+ rt = 0x10101010;
+ result = 0x100F100F;
+ __asm
+ ("addq.ph %0, %1, %2\n\t"
+ : "=r"(rd)
+ : "r"(rs), "r"(rt)
+ );
+ if (rd != result) {
+ printf("1 addq.ph wrong\n");
+
+ return -1;
+ }
+
+ rs = 0x3712847D;
+ rt = 0x0031AF2D;
+ result = 0x374333AA;
+ __asm
+ ("addq.ph %0, %1, %2\n\t"
+ : "=r"(rd)
+ : "r"(rs), "r"(rt)
+ );
+ if (rd != result) {
+ printf("2 addq.ph wrong\n");
+
+ return -1;
+ }
+
+ rs = 0x7fff847D;
+ rt = 0x0031AF2D;
+ result = 0xffffffff803033AA;
+ __asm
+ ("addq.ph %0, %1, %2\n\t"
+ : "=r"(rd)
+ : "r"(rs), "r"(rt)
+ );
+
+ __asm("rddsp %0\n\t"
+ : "=r"(dsp)
+ );
+
+ if (rd != result || (((dsp >> 20) & 0x01) != 1)) {
+ printf("3 addq.ph wrong\n");
+
+ return -1;
+ }
+
+ return 0;
+}