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#include<stdio.h>
#include<assert.h>
int main()
{
int rs, rt, dsp;
int ach = 5, acl = 5;
int resulth, resultl, resultdsp;
rs = 0x800000FF;
rt = 0x00018000;
resulth = 0x05;
resultl = 0x80000202;
resultdsp = 0x01;
__asm
("mthi %0, $ac1\n\t"
"mtlo %1, $ac1\n\t"
"dpaqx_s.w.ph $ac1, %3, %4\n\t"
"mfhi %0, $ac1\n\t"
"mflo %1, $ac1\n\t"
"rddsp %2\n\t"
: "+r"(ach), "+r"(acl), "=r"(dsp)
: "r"(rs), "r"(rt)
);
dsp = (dsp >> 17) & 0x01;
assert(dsp == resultdsp);
assert(ach == resulth);
assert(acl == resultl);
ach = 5;
acl = 5;
rs = 0x00FF00FF;
rt = 0x00010002;
resulth = 0x05;
resultl = 0x05FF;
/***********************************************************
* Because of we set outflag at last time, although this
* time we set nothing, but it is stay the last time value.
**********************************************************/
resultdsp = 0x01;
__asm
("mthi %0, $ac1\n\t"
"mtlo %1, $ac1\n\t"
"dpaqx_s.w.ph $ac1, %3, %4\n\t"
"mfhi %0, $ac1\n\t"
"mflo %1, $ac1\n\t"
"rddsp %2\n\t"
: "+r"(ach), "+r"(acl), "=r"(dsp)
: "r"(rs), "r"(rt)
);
dsp = (dsp >> 17) & 0x01;
assert(dsp == resultdsp);
assert(ach == resulth);
assert(acl == resultl);
ach = 5;
acl = 5;
rs = 0x800000FF;
rt = 0x00028000;
resulth = 0x05;
resultl = 0x80000400;
resultdsp = 0x01;
__asm
("mthi %0, $ac1\n\t"
"mtlo %1, $ac1\n\t"
"dpaqx_s.w.ph $ac1, %3, %4\n\t"
"mfhi %0, $ac1\n\t"
"mflo %1, $ac1\n\t"
"rddsp %2\n\t"
: "+r"(ach), "+r"(acl), "=r"(dsp)
: "r"(rs), "r"(rt)
);
dsp = (dsp >> 17) & 0x01;
assert(dsp == resultdsp);
assert(ach == resulth);
assert(acl == resultl);
return 0;
}
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