Commit 8e2e5e7d authored by Fredrik Noring's avatar Fredrik Noring Committed by Aleksandar Markovic
Browse files

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



Test R5900 three-operand MADDU.

Reviewed-by: default avatarAleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: default avatarAleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: default avatarFredrik Noring <noring@nocrew.org>
parent 84dc0712

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

tests/tcg/mips/mipsr5900/maddu.c

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/*

 * 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;

}