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36 lines
865 B
C
36 lines
865 B
C
/*
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* Test R5900-specific MFLO1 and MFHI1.
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*/
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#include <stdio.h>
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#include <inttypes.h>
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#include <assert.h>
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int main()
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{
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int32_t rs = 12207031, rt = 305175781;
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int32_t rs1 = 32452867, rt1 = 49979687;
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int64_t lo, hi, lo1, hi1;
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int64_t r, r1;
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/* Test both LO/HI and LO1/HI1 to verify separation. */
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__asm__ __volatile__ (
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" mult $0, %4, %5\n"
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" mult1 $0, %6, %7\n"
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" mflo %0\n"
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" mfhi %1\n"
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" mflo1 %2\n"
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" mfhi1 %3\n"
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: "=r" (lo), "=r" (hi),
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"=r" (lo1), "=r" (hi1)
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: "r" (rs), "r" (rt),
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"r" (rs1), "r" (rt1));
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r = ((int64_t)hi << 32) | (uint32_t)lo;
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r1 = ((int64_t)hi1 << 32) | (uint32_t)lo1;
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assert(r == 3725290219116211);
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assert(r1 == 1621984134912629);
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return 0;
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}
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