+#include<stdio.h>
+#include<assert.h>
+
+int main()
+{
+ int rd, rt, dsp;
+ int result, resultdsp;
+
+ rt = 0x12345678;
+ result = 0xA000C000;
+ resultdsp = 1;
+
+ __asm
+ ("wrdsp $0\n\t"
+ "shll.ph %0, %2, 0x0B\n\t"
+ "rddsp %1\n\t"
+ : "=r"(rd), "=r"(dsp)
+ : "r"(rt)
+ );
+ dsp = (dsp >> 22) & 0x01;
+ assert(dsp == resultdsp);
+ assert(rd == result);
+
+ rt = 0x7fff8000;
+ result = 0xfffe0000;
+ resultdsp = 1;
+
+ __asm
+ ("wrdsp $0\n\t"
+ "shll.ph %0, %2, 0x01\n\t"
+ "rddsp %1\n\t"
+ : "=r"(rd), "=r"(dsp)
+ : "r"(rt)
+ );
+ dsp = (dsp >> 22) & 0x01;
+ assert(dsp == resultdsp);
+ assert(rd == result);
+
+ rt = 0x00000001;
+ result = 0x00008000;
+ resultdsp = 1;
+
+ __asm
+ ("wrdsp $0\n\t"
+ "shll.ph %0, %2, 0x0F\n\t"
+ "rddsp %1\n\t"
+ : "=r"(rd), "=r"(dsp)
+ : "r"(rt)
+ );
+ dsp = (dsp >> 22) & 0x01;
+ assert(dsp == resultdsp);
+ assert(rd == result);
+
+ return 0;
+}