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tests/tcg: mips: Test R5900 three-operand MADDU 

Test R5900 three-operand MADDU.

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Fredrik Noring <noring@nocrew.org>
This commit is contained in:
Fredrik Noring 2018-12-27 21:25:18 +01:00 committed by Aleksandar Markovic
parent 84dc071236
commit 8e2e5e7dac
2 changed files with 38 additions and 0 deletions
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1
tests/tcg/mips/mipsr5900/Makefile
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@ -11,6 +11,7 @@ CFLAGS = -Wall -mabi=32 -march=r5900 -static
TESTCASES = div1.tst
TESTCASES += divu1.tst
TESTCASES += madd.tst
TESTCASES += maddu.tst
TESTCASES += mflohi1.tst
TESTCASES += mtlohi1.tst
TESTCASES += mult.tst

37
tests/tcg/mips/mipsr5900/maddu.c Normal file
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@ -0,0 +1,37 @@
/*
* Test R5900-specific three-operand MADDU.
*/
#include <stdio.h>
#include <inttypes.h>
#include <assert.h>
uint64_t maddu(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__ (
" mtlo %5\n"
" mthi %6\n"
" maddu %0, %3, %4\n"
" mflo %1\n"
" mfhi %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;
}
int main()
{
assert(maddu(13, 17, 19) == 336);
return 0;
}