--- /dev/null
+#include"io.h"
+
+int main(void)
+{
+ long long rs, rt;
+ long long ach = 5, acl = 5;
+ long long resulth, resultl;
+
+ rs = 0xBC0123AD;
+ rt = 0x01643721;
+ resulth = 0x04;
+ resultl = 0xFFFFFFFFD751F050;
+ __asm
+ ("mthi %0, $ac1\n\t"
+ "mtlo %1, $ac1\n\t"
+ "dpsx.w.ph $ac1, %2, %3\n\t"
+ "mfhi %0, $ac1\n\t"
+ "mflo %1, $ac1\n\t"
+ : "+r"(ach), "+r"(acl)
+ : "r"(rs), "r"(rt)
+ );
+ if (ach != resulth || acl != resultl) {
+ printf("dpsx.w.ph error\n");
+ return -1;
+ }
+
+ return 0;
+}