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tests/tcg/mips: Add tests for R5900 MFLO1 and MFHI1 

Add a test for MFLO1 and MFHI1.

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Fredrik Noring <noring@nocrew.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
This commit is contained in:
Fredrik Noring 2018-10-21 17:41:47 +02:00 committed by Aleksandar Markovic
parent bec4d66b24
commit 3303f017ad
2 changed files with 37 additions and 1 deletions
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3
tests/tcg/mips/mipsr5900/Makefile
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@ -8,7 +8,8 @@ SIM_FLAGS=-cpu R5900
CC = $(CROSS)gcc
CFLAGS = -Wall -mabi=32 -march=r5900 -static
TESTCASES = mult.tst
TESTCASES = mflohi1.tst
TESTCASES += mult.tst
TESTCASES += multu.tst
all: $(TESTCASES)

35
tests/tcg/mips/mipsr5900/mflohi1.c Normal file
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@ -0,0 +1,35 @@
/*
* Test R5900-specific MFLO1 and MFHI1.
*/
#include <stdio.h>
#include <inttypes.h>
#include <assert.h>
int main()
{
int32_t rs = 12207031, rt = 305175781;
int32_t rs1 = 32452867, rt1 = 49979687;
int64_t lo, hi, lo1, hi1;
int64_t r, r1;
/* Test both LO/HI and LO1/HI1 to verify separation. */
__asm__ __volatile__ (
" mult $0, %4, %5\n"
" mult1 $0, %6, %7\n"
" mflo %0\n"
" mfhi %1\n"
" mflo1 %2\n"
" mfhi1 %3\n"
: "=r" (lo), "=r" (hi),
"=r" (lo1), "=r" (hi1)
: "r" (rs), "r" (rt),
"r" (rs1), "r" (rt1));
r = ((int64_t)hi << 32) | (uint32_t)lo;
r1 = ((int64_t)hi1 << 32) | (uint32_t)lo1;
assert(r == 3725290219116211);
assert(r1 == 1621984134912629);
return 0;
}