blob: f9d2ed646fa35e811d19e27eb069debc37d7a699 [file] [log] [blame] [edit]
#include<stdio.h>
#include<assert.h>
int main()
{
int rt, ach, acl, dsp;
int result;
ach = 0x05;
acl = 0xB4CB;
result = 0x7FFFFFFF;
__asm
("mthi %2, $ac1\n\t"
"mtlo %3, $ac1\n\t"
"extr_rs.w %0, $ac1, 0x03\n\t"
"rddsp %1\n\t"
: "=r"(rt), "=r"(dsp)
: "r"(ach), "r"(acl)
);
dsp = (dsp >> 23) & 0x01;
assert(dsp == 1);
assert(result == rt);
/* Clear dspcontrol */
dsp = 0;
__asm
("wrdsp %0\n\t"
:
: "r"(dsp)
);
ach = 0x01;
acl = 0xB4CB;
result = 0x10000B4D;
__asm
("mthi %2, $ac1\n\t"
"mtlo %3, $ac1\n\t"
"extr_rs.w %0, $ac1, 0x04\n\t"
"rddsp %1\n\t"
: "=r"(rt), "=r"(dsp)
: "r"(ach), "r"(acl)
);
dsp = (dsp >> 23) & 0x01;
assert(dsp == 0);
assert(result == rt);
/* Clear dspcontrol */
dsp = 0;
__asm
("wrdsp %0\n\t"
:
: "r"(dsp)
);
ach = 0x3fffffff;
acl = 0x2bcdef01;
result = 0x7ffffffe;
__asm
("mthi %2, $ac1\n\t"
"mtlo %3, $ac1\n\t"
"extr_rs.w %0, $ac1, 0x1F\n\t"
"rddsp %1\n\t"
: "=r"(rt), "=r"(dsp)
: "r"(ach), "r"(acl)
);
dsp = (dsp >> 23) & 0x01;
assert(dsp == 0);
assert(result == rt);
/* Clear dspcontrol */
dsp = 0;
__asm
("wrdsp %0\n\t"
:
: "r"(dsp)
);
ach = 0x80000000;
acl = 0x00000000;
result = 0x80000000;
__asm
("mthi %2, $ac1\n\t"
"mtlo %3, $ac1\n\t"
"extr_rs.w %0, $ac1, 0x1F\n\t"
"rddsp %1\n\t"
: "=r"(rt), "=r"(dsp)
: "r"(ach), "r"(acl)
);
dsp = (dsp >> 23) & 0x01;
assert(dsp == 1);
assert(result == rt);
/* Clear dspcontrol */
dsp = 0;
__asm
("wrdsp %0\n\t"
:
: "r"(dsp)
);
ach = 0xFFFFFFFF;
acl = 0xFFFFFFFF;
result = 0;
__asm
("mthi %2, $ac1\n\t"
"mtlo %3, $ac1\n\t"
"extr_rs.w %0, $ac1, 0x1F\n\t"
"rddsp %1\n\t"
: "=r"(rt), "=r"(dsp)
: "r"(ach), "r"(acl)
);
dsp = (dsp >> 23) & 0x01;
assert(dsp == 0);
assert(result == rt);
return 0;
}