--- /dev/null
+#include "io.h"
+
+int main(void)
+{
+ long long rd, rs, rt, dspreg, dspresult;
+
+ rs = 0x123456789ABCDEF0;
+ rt = 0x123456789ABCDEFF;
+ dspresult = 0xFE;
+
+ __asm
+ ("cmpu.eq.ob %1, %2\n\t"
+ "rddsp %0"
+ : "=r"(dspreg)
+ : "r"(rs), "r"(rt)
+ );
+
+ dspreg = ((dspreg >> 24) & 0xFF);
+
+ if (dspreg != dspresult) {
+ printf("cmpu.eq.ob error\n");
+
+ return -1;
+ }
+
+ rs = 0x133516713A0CD1F0;
+ rt = 0x123456789ABCDEFF;
+ dspresult = 0x00;
+
+ __asm
+ ("cmpu.eq.ob %1, %2\n\t"
+ "rddsp %0"
+ : "=r"(dspreg)
+ : "r"(rs), "r"(rt)
+ );
+
+ dspreg = ((dspreg >> 24) & 0xFF);
+
+ if (dspreg != dspresult) {
+ printf("cmpu.eq.ob error\n");
+
+ return -1;
+ }
+
+ return 0;
+}