projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 1d7b4a70 MF |
1 | // Test extraction from accumulators: |
| 2 | // ROUND/TRUNCATE in SIGNED FRACTIONAL mode | |
| 3 | // test ops: "+=" | |
| 4 | # mach: bfin | |
| 5 | ||
| 6 | .include "testutils.inc" | |
| 7 | start | |
| 8 | ||
| 9 | ||
| 10 | // load r0=0x7ffef000 | |
| 11 | // load r1=0x7ffff000 | |
| 12 | // load r2=0x00008000 | |
| 13 | // load r3=0x00018000 | |
| 14 | // load r4=0x0000007f | |
| 15 | loadsym P0, data0; | |
| 16 | R0 = [ P0 ++ ]; | |
| 17 | R1 = [ P0 ++ ]; | |
| 18 | R2 = [ P0 ++ ]; | |
| 19 | R3 = [ P0 ++ ]; | |
| 20 | R4 = [ P0 ++ ]; | |
| 21 | ||
| 22 | // round | |
| 23 | // 0x007ffef00 -> 0x7fff | |
| 24 | A1 = A0 = 0; | |
| 25 | A1.w = R0; | |
| 26 | A0.w = R0; | |
| 27 | R5.H = A1, R5.L = A0; | |
| 28 | DBGA ( R5.L , 0x7fff ); | |
| 29 | DBGA ( R5.H , 0x7fff ); | |
| 30 | ||
| 31 | // round with ovflw | |
| 32 | // 0x007ffff00 -> 0x7fff | |
| 33 | A1 = A0 = 0; | |
| 34 | A1.w = R1; | |
| 35 | A0.w = R1; | |
| 36 | R5.H = A1, R5.L = A0; | |
| 37 | DBGA ( R5.L , 0x7fff ); | |
| 38 | DBGA ( R5.H , 0x7fff ); | |
| 39 | ||
| 40 | // trunc | |
| 41 | // 0x007ffef00 -> 0x7ffe | |
| 42 | A1 = A0 = 0; | |
| 43 | A1.w = R0; | |
| 44 | A0.w = R0; | |
| 45 | R5.H = A1, R5.L = A0 (T); | |
| 46 | DBGA ( R5.L , 0x7ffe ); | |
| 47 | DBGA ( R5.H , 0x7ffe ); | |
| 48 | ||
| 49 | // round with ovflw | |
| 50 | // 0x7f7ffff00 -> 0x7fff | |
| 51 | A1 = A0 = 0; | |
| 52 | A1.w = R1; | |
| 53 | A1.x = R4.L; | |
| 54 | A0.w = R1; | |
| 55 | A0.x = R4.L; | |
| 56 | R5.H = A1, R5.L = A0; | |
| 57 | DBGA ( R5.L , 0x7fff ); | |
| 58 | DBGA ( R5.H , 0x7fff ); | |
| 59 | ||
| 60 | // round, nearest even is zero | |
| 61 | // 0x0000008000 -> 0x0000 | |
| 62 | A1 = A0 = 0; | |
| 63 | A1.w = R2; | |
| 64 | A0.w = R2; | |
| 65 | R5.H = A1, R5.L = A0; | |
| 66 | DBGA ( R5.L , 0x0 ); | |
| 67 | DBGA ( R5.H , 0x0 ); | |
| 68 | ||
| 69 | // round, nearest even is 2 | |
| 70 | // 0x00000018000 -> 0x0002 | |
| 71 | A1 = A0 = 0; | |
| 72 | A1.w = R3; | |
| 73 | A0.w = R3; | |
| 74 | R5.H = A1, R5.L = A0; | |
| 75 | DBGA ( R5.L , 0x2 ); | |
| 76 | DBGA ( R5.H , 0x2 ); | |
| 77 | ||
| 78 | pass | |
| 79 | ||
| 80 | .data | |
| 81 | data0: | |
| 82 | .dw 0xf000 | |
| 83 | .dw 0x7ffe | |
| 84 | .dw 0xf000 | |
| 85 | .dw 0x7ffe | |
| 86 | .dw 0x8000 | |
| 87 | .dw 0x0000 | |
| 88 | .dw 0x8000 | |
| 89 | .dw 0x0001 | |
| 90 | .dw 0x007f | |
| 91 | .dw 0x0000 |