| 1 | #include<stdio.h> |
| 2 | #include<assert.h> |
| 3 | |
| 4 | int main() |
| 5 | { |
| 6 | int rd, rs, rt; |
| 7 | int dspi, dspo; |
| 8 | int result; |
| 9 | |
| 10 | rs = 0x10FF01FF; |
| 11 | rt = 0x10010001; |
| 12 | dspi = 0x00002000; |
| 13 | result = 0x21000201; |
| 14 | __asm |
| 15 | ("wrdsp %3\n" |
| 16 | "addwc %0, %1, %2\n\t" |
| 17 | : "=r"(rd) |
| 18 | : "r"(rs), "r"(rt), "r"(dspi) |
| 19 | ); |
| 20 | assert(rd == result); |
| 21 | |
| 22 | rs = 0xFFFF1111; |
| 23 | rt = 0x00020001; |
| 24 | dspi = 0x00; |
| 25 | result = 0x00011112; |
| 26 | __asm |
| 27 | ("wrdsp %3\n" |
| 28 | "addwc %0, %1, %2\n\t" |
| 29 | : "=r"(rd) |
| 30 | : "r"(rs), "r"(rt), "r"(dspi) |
| 31 | ); |
| 32 | assert(rd == result); |
| 33 | |
| 34 | rs = 0x8FFF1111; |
| 35 | rt = 0x80020001; |
| 36 | dspi = 0x00; |
| 37 | result = 0x10011112; |
| 38 | __asm |
| 39 | ("wrdsp %4\n" |
| 40 | "addwc %0, %2, %3\n\t" |
| 41 | "rddsp %1\n\t" |
| 42 | : "=r"(rd), "=r"(dspo) |
| 43 | : "r"(rs), "r"(rt), "r"(dspi) |
| 44 | ); |
| 45 | assert(rd == result); |
| 46 | assert(((dspo >> 20) & 0x01) == 1); |
| 47 | |
| 48 | return 0; |
| 49 | } |