@@ -652,7 +652,7 @@ static inline int32_t mipsdsp_sat16_mul_q15_q15(uint16_t a, uint16_t b,
temp = 0x7FFF0000;
set_DSPControl_overflow_flag(1, 21, env);
} else {
- temp = ((uint32_t)a * (uint32_t)b);
+ temp = (int16_t)a * (int16_t)b;
temp = temp << 1;
}
@@ -6,6 +6,21 @@ int main()
int rd, rs, rt, dsp;
int result, resultdsp;
+ rs = 0x80000000;
+ rt = 0x0ffc0000;
+ result = 0xF0040000;
+ resultdsp = 0;
+
+ __asm
+ ("mulq_s.ph %0, %2, %3\n\t"
+ "rddsp %1\n\t"
+ : "=r"(rd), "=r"(dsp)
+ : "r"(rs), "r"(rt)
+ );
+ dsp = (dsp >> 21) & 0x01;
+ assert(rd == result);
+ assert(dsp == resultdsp);
+
rs = 0x80001234;
rt = 0x80004321;
result = 0x7FFF098B;