+#include "io.h"
+
+int main(void)
+{
+ long long rt, ach, acl, dsp;
+ long long result;
+
+ ach = 0x05;
+ acl = 0xB4CB;
+ result = 0xFFFFFFFFA0001699;
+ __asm
+ ("mthi %2, $ac1\n\t"
+ "mtlo %3, $ac1\n\t"
+ "extr_r.w %0, $ac1, 0x03\n\t"
+ "rddsp %1\n\t"
+ : "=r"(rt), "=r"(dsp)
+ : "r"(ach), "r"(acl)
+ );
+ dsp = (dsp >> 23) & 0x01;
+ if ((dsp != 1) || (result != rt)) {
+ printf("1 extr_r.w wrong\n");
+
+ return -1;
+ }
+
+ /* Clear dspcontrol */
+ dsp = 0;
+ __asm
+ ("wrdsp %0\n\t"
+ :
+ : "r"(dsp)
+ );
+
+ ach = 0x01;
+ acl = 0xB4CB;
+ result = 0x10000B4D;
+ __asm
+ ("mthi %2, $ac1\n\t"
+ "mtlo %3, $ac1\n\t"
+ "extr_r.w %0, $ac1, 0x04\n\t"
+ "rddsp %1\n\t"
+ : "=r"(rt), "=r"(dsp)
+ : "r"(ach), "r"(acl)
+ );
+ dsp = (dsp >> 23) & 0x01;
+ if ((dsp != 0) || (result != rt)) {
+ printf("2 extr_r.w wrong\n");
+
+ return -1;
+ }
+
+ return 0;
+}