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#include<stdio.h>
#include<assert.h>

int main()
{
    int rd, rs, rt, dsp;
    int result;

    rs = 0x12345678;
    rt = 0x87654321;
    dsp = 0x0A000000;
    result = 0x12344321;

    __asm
        ("wrdsp %3, 0x10\n\t"
         "pick.ph %0, %1, %2\n\t"
         : "=r"(rd)
         : "r"(rs), "r"(rt), "r"(dsp)
        );
    assert(rd == result);

    rs = 0x12345678;
    rt = 0x87654321;
    dsp = 0x03000000;
    result = 0x12345678;

    __asm
        ("wrdsp %3, 0x10\n\t"
         "pick.ph %0, %1, %2\n\t"
         : "=r"(rd)
         : "r"(rs), "r"(rt), "r"(dsp)
        );
    assert(rd == result);

    rs = 0x12345678;
    rt = 0x87654321;
    dsp = 0x00000000;
    result = 0x87654321;

    __asm
        ("wrdsp %3, 0x10\n\t"
         "pick.ph %0, %1, %2\n\t"
         : "=r"(rd)
         : "r"(rs), "r"(rt), "r"(dsp)
        );
    assert(rd == result);

    return 0;
}