--- /dev/null
+#include "io.h"
+
+int main(void)
+{
+ long long rd, rs, rt, dsp;
+ long long result;
+
+ rs = 0x12345678;
+ rt = 0x87654321;
+ dsp = 0x0A000000;
+ result = 0x12344321;
+
+ __asm
+ ("wrdsp %3, 0x10\n\t"
+ "pick.ph %0, %1, %2\n\t"
+ : "=r"(rd)
+ : "r"(rs), "r"(rt), "r"(dsp)
+ );
+ if (rd != result) {
+ printf("1 pick.ph wrong\n");
+
+ return -1;
+ }
+
+ rs = 0x12345678;
+ rt = 0x87654321;
+ dsp = 0x03000000;
+ result = 0x12345678;
+
+ __asm
+ ("wrdsp %3, 0x10\n\t"
+ "pick.ph %0, %1, %2\n\t"
+ : "=r"(rd)
+ : "r"(rs), "r"(rt), "r"(dsp)
+ );
+ if (rd != result) {
+ printf("2 pick.ph wrong\n");
+
+ return -1;
+ }
+
+ rs = 0x12345678;
+ rt = 0x87654321;
+ dsp = 0x00000000;
+ result = 0xffffffff87654321;
+
+ __asm
+ ("wrdsp %3, 0x10\n\t"
+ "pick.ph %0, %1, %2\n\t"
+ : "=r"(rd)
+ : "r"(rs), "r"(rt), "r"(dsp)
+ );
+ if (rd != result) {
+ printf("3 pick.ph wrong\n");
+
+ return -1;
+ }
+
+ return 0;
+}