diff options
| -rw-r--r-- | tests/tcg/mips/mipsr5900/maddu.c | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/tests/tcg/mips/mipsr5900/maddu.c b/tests/tcg/mips/mipsr5900/maddu.c index e4e552102d..30936fb2b4 100644 --- a/tests/tcg/mips/mipsr5900/maddu.c +++ b/tests/tcg/mips/mipsr5900/maddu.c @@ -1,5 +1,5 @@ /* - * Test R5900-specific three-operand MADDU. + * Test R5900-specific three-operand MADDU and MADDU1. */ #include <stdio.h> @@ -29,9 +29,42 @@ uint64_t maddu(uint64_t a, uint32_t rs, uint32_t rt) return r; } +uint64_t maddu1(uint64_t a, uint32_t rs, uint32_t rt) +{ + uint32_t lo = a; + uint32_t hi = a >> 32; + uint32_t rd; + uint64_t r; + + __asm__ __volatile__ ( + " mtlo1 %5\n" + " mthi1 %6\n" + " maddu1 %0, %3, %4\n" + " mflo1 %1\n" + " mfhi1 %2\n" + : "=r" (rd), "=r" (lo), "=r" (hi) + : "r" (rs), "r" (rt), "r" (lo), "r" (hi)); + r = ((uint64_t)hi << 32) | (uint32_t)lo; + + assert(a + (uint64_t)rs * rt == r); + assert(rd == lo); + + return r; +} + +static int64_t maddu_variants(int64_t a, int32_t rs, int32_t rt) +{ + int64_t rd = maddu(a, rs, rt); + int64_t rd1 = maddu1(a, rs, rt); + + assert(rd == rd1); + + return rd; +} + int main() { - assert(maddu(13, 17, 19) == 336); + assert(maddu_variants(13, 17, 19) == 336); return 0; } |