--- /dev/null
+#include<stdio.h>
+#include<assert.h>
+
+int main()
+{
+ int rd, rs, rt;
+ int dsp;
+ int result;
+
+ rs = 0xFFFFFFFF;
+ rt = 0x10101010;
+ result = 0x100F100F;
+ __asm
+ ("addq.ph %0, %1, %2\n\t"
+ : "=r"(rd)
+ : "r"(rs), "r"(rt)
+ );
+ assert(result == rd);
+
+ rs = 0x3712847D;
+ rt = 0x0031AF2D;
+ result = 0x374333AA;
+ __asm
+ ("addq.ph %0, %1, %2\n\t"
+ : "=r"(rd)
+ : "r"(rs), "r"(rt)
+ );
+ assert(result == rd);
+
+ rs = 0x7fff847D;
+ rt = 0x0031AF2D;
+ result = 0x803033AA;
+ __asm
+ ("addq.ph %0, %1, %2\n\t"
+ : "=r"(rd)
+ : "r"(rs), "r"(rt)
+ );
+ assert(result == rd);
+
+ __asm("rddsp %0\n\t"
+ : "=r"(dsp)
+ );
+ assert(((dsp >> 20) & 0x01) == 1);
+
+ return 0;
+}