28 lines
		
	
	
		
			491 B
		
	
	
	
		
			C
		
	
	
	
	
	
		
		
			
		
	
	
			28 lines
		
	
	
		
			491 B
		
	
	
	
		
			C
		
	
	
	
	
	
|   | #include "io.h"
 | ||
|  | 
 | ||
|  | int main(void) | ||
|  | { | ||
|  |     long long rd, rs, rt, dsp; | ||
|  |     long long result, resultdsp; | ||
|  | 
 | ||
|  |     rs = 0x12345678; | ||
|  |     rt = 0x87654321; | ||
|  |     result    = 0x00001357; | ||
|  |     resultdsp = 0x01; | ||
|  | 
 | ||
|  |     __asm | ||
|  |         ("subu_s.qb %0, %2, %3\n\t" | ||
|  |          "rddsp   %1\n\t" | ||
|  |          : "=r"(rd), "=r"(dsp) | ||
|  |          : "r"(rs), "r"(rt) | ||
|  |         ); | ||
|  |     dsp = (dsp >> 20) & 0x01; | ||
|  |     if ((dsp != resultdsp) || (rd  != result)) { | ||
|  |         printf("subu_s_qb wrong"); | ||
|  | 
 | ||
|  |         return -1; | ||
|  |     } | ||
|  | 
 | ||
|  |     return 0; | ||
|  | } |