Commit 3303f017 authored by Fredrik Noring's avatar Fredrik Noring Committed by Aleksandar Markovic
Browse files

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



Add a test for MFLO1 and MFHI1.

Reviewed-by: default avatarAleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: default avatarFredrik Noring <noring@nocrew.org>
Signed-off-by: default avatarAleksandar Markovic <amarkovic@wavecomp.com>
parent bec4d66b

tests/tcg/mips/mipsr5900/Makefile

+2 −1
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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)

tests/tcg/mips/mipsr5900/mflohi1.c

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/*

 * 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;

}