55 lines
1.0 KiB
C
55 lines
1.0 KiB
C
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#include "io.h"
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int main(void)
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{
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long long rt, dsp;
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long long achi, acli;
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long long res, resdsp;
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int rs;
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rs = 0xabcd1234;
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achi = 0x12345678;
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acli = 0x87654321;
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res = 0xff;
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resdsp = 0x0;
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__asm
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("mthi %2, $ac1\n\t"
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"mtlo %3, $ac1\n\t"
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"wrdsp %4\n\t"
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"dextp %0, $ac1, 0x7\n\t"
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"rddsp %1\n\t"
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: "=r"(rt), "=r"(dsp)
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: "r"(achi), "r"(acli), "r"(rs)
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);
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dsp = (dsp >> 14) & 0x1;
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if ((dsp != resdsp) || (rt != res)) {
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printf("dextp error\n");
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return -1;
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}
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rs = 0xabcd1200;
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achi = 0x12345678;
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acli = 0x87654321;
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resdsp = 0x1;
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__asm
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("mthi %2, $ac1\n\t"
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"mtlo %3, $ac1\n\t"
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"wrdsp %4\n\t"
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"dextp %0, $ac1, 0x7\n\t"
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"rddsp %1\n\t"
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: "=r"(rt), "=r"(dsp)
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: "r"(achi), "r"(acli), "r"(rs)
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);
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dsp = (dsp >> 14) & 0x1;
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if (dsp != resdsp) {
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printf("dextp error\n");
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return -1;
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}
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return 0;
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}
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