| #include "io.h" |
| |
| int main(void) |
| { |
| long long rt, rs, ach, acl, dsp; |
| long long result; |
| |
| ach = 0x05; |
| acl = 0xB4CB; |
| dsp = 0x07; |
| rs = 0x03; |
| result = 0xFFFFFFFFA0001699; |
| |
| __asm |
| ("wrdsp %1, 0x01\n\t" |
| "mthi %3, $ac1\n\t" |
| "mtlo %4, $ac1\n\t" |
| "extrv.w %0, $ac1, %2\n\t" |
| "rddsp %1\n\t" |
| : "=r"(rt), "+r"(dsp) |
| : "r"(rs), "r"(ach), "r"(acl) |
| ); |
| dsp = (dsp >> 23) & 0x01; |
| if ((dsp != 1) || (result != rt)) { |
| printf("extrv.w wrong\n"); |
| |
| return -1; |
| } |
| |
| /* Clear dspcontrol */ |
| dsp = 0; |
| __asm |
| ("wrdsp %0\n\t" |
| : |
| : "r"(dsp) |
| ); |
| |
| rs = 4; |
| ach = 0x01; |
| acl = 0xB4CB; |
| result = 0x10000B4C; |
| __asm |
| ("wrdsp %1, 0x01\n\t" |
| "mthi %3, $ac1\n\t" |
| "mtlo %4, $ac1\n\t" |
| "extrv.w %0, $ac1, %2\n\t" |
| "rddsp %1\n\t" |
| : "=r"(rt), "+r"(dsp) |
| : "r"(rs), "r"(ach), "r"(acl) |
| ); |
| dsp = (dsp >> 23) & 0x01; |
| if ((dsp != 0) || (result != rt)) { |
| printf("extrv.w wrong\n"); |
| |
| return -1; |
| } |
| |
| return 0; |
| } |