Commit 19749a21 authored by Fredrik Noring's avatar Fredrik Noring Committed by Aleksandar Markovic
Browse files

tests/tcg: mips: Test R5900 three-operand MADDU1 



Test R5900 three-operand MADDU1.

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 8e2e5e7d

tests/tcg/mips/mipsr5900/maddu.c

+35 −2
Original line number Diff line number Diff line 
/*

 * 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;

}