| 1 | #include<stdio.h> |
| 2 | #include<assert.h> |
| 3 | |
| 4 | int main() |
| 5 | { |
| 6 | int dsp_i, dsp_o; |
| 7 | int ccond_i, outflag_i, efi_i, c_i, scount_i, pos_i; |
| 8 | int ccond_o, outflag_o, efi_o, c_o, scount_o, pos_o; |
| 9 | |
| 10 | ccond_i = 0x000000BC; /* 4 */ |
| 11 | outflag_i = 0x0000001B; /* 3 */ |
| 12 | efi_i = 0x00000001; /* 5 */ |
| 13 | c_i = 0x00000001; /* 2 */ |
| 14 | scount_i = 0x0000000F; /* 1 */ |
| 15 | pos_i = 0x0000000C; /* 0 */ |
| 16 | |
| 17 | dsp_i = (ccond_i << 24) | \ |
| 18 | (outflag_i << 16) | \ |
| 19 | (efi_i << 14) | \ |
| 20 | (c_i << 13) | \ |
| 21 | (scount_i << 7) | \ |
| 22 | pos_i; |
| 23 | |
| 24 | __asm |
| 25 | ("wrdsp %1, 0x3F\n\t" |
| 26 | "rddsp %0, 0x3F\n\t" |
| 27 | : "=r"(dsp_o) |
| 28 | : "r"(dsp_i) |
| 29 | ); |
| 30 | |
| 31 | ccond_o = (dsp_o >> 24) & 0xFF; |
| 32 | outflag_o = (dsp_o >> 16) & 0xFF; |
| 33 | efi_o = (dsp_o >> 14) & 0x01; |
| 34 | c_o = (dsp_o >> 14) & 0x01; |
| 35 | scount_o = (dsp_o >> 7) & 0x3F; |
| 36 | pos_o = dsp_o & 0x1F; |
| 37 | |
| 38 | assert(ccond_o == (ccond_i & 0x0F)); |
| 39 | assert(outflag_o == outflag_i); |
| 40 | assert(efi_o == efi_i); |
| 41 | assert(c_o == c_i); |
| 42 | assert(scount_o == scount_i); |
| 43 | assert(pos_o == pos_i); |
| 44 | |
| 45 | return 0; |
| 46 | } |