45 lines
		
	
	
		
			752 B
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			45 lines
		
	
	
		
			752 B
		
	
	
	
		
			C
		
	
	
	
| #include "io.h"
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| 
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| int main(void)
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| {
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|     long long rt;
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|     long long achi, acli;
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|     long long res;
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| 
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|     achi = 0x87654321;
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|     acli = 0x12345678;
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| 
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|     res = 0x123456;
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| 
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|     __asm
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|         ("mthi %1, $ac1\n\t"
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|          "mtlo %2, $ac1\n\t"
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|          "dextr.w %0, $ac1, 0x8\n\t"
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|          : "=r"(rt)
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|          : "r"(achi), "r"(acli)
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|         );
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|     if (rt != res) {
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|         printf("dextr.w error\n");
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|         return -1;
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|     }
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| 
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|     achi = 0x87654321;
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|     acli = 0x12345678;
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| 
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|     res = 0x12345678;
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| 
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|     __asm
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|         ("mthi %1, $ac1\n\t"
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|          "mtlo %2, $ac1\n\t"
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|          "dextr.w %0, $ac1, 0x0\n\t"
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|          : "=r"(rt)
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|          : "r"(achi), "r"(acli)
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|         );
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|     if (rt != res) {
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|         printf("dextr.w error\n");
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|         return -1;
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|     }
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| 
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|     return 0;
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| }
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