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#include<stdio.h>
#include<assert.h>
int main()
{
int rt, ac, ach, acl, dsp;
int result;
ach = 0x05;
acl = 0xB4CB;
dsp = 0x07;
ac = 0x03;
result = 0x000C;
__asm
("wrdsp %1, 0x01\n\t"
"mthi %2, $ac1\n\t"
"mtlo %3, $ac1\n\t"
"extpv %0, $ac1, %4\n\t"
"rddsp %1\n\t"
: "=r"(rt), "+r"(dsp)
: "r"(ach), "r"(acl), "r"(ac)
);
dsp = (dsp >> 14) & 0x01;
assert(dsp == 0);
assert(result == rt);
ach = 0x05;
acl = 0xB4CB;
dsp = 0x01;
__asm
("wrdsp %1, 0x01\n\t"
"mthi %2, $ac1\n\t"
"mtlo %3, $ac1\n\t"
"extpv %0, $ac1, %4\n\t"
"rddsp %1\n\t"
: "=r"(rt), "+r"(dsp)
: "r"(ach), "r"(acl), "r"(ac)
);
dsp = (dsp >> 14) & 0x01;
assert(dsp == 1);
return 0;
}
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