projects / qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| 24f9e90b | 1 | |
| 24f9e90b FB |
2 | void OPPROTO glue(glue(op_repz_scas, SUFFIX), STRING_SUFFIX)(void) |
| 3 | { | |
| 4 | int v1, v2, inc; | |
| 5 | ||
| 6 | if (CX != 0) { | |
| 7 | /* NOTE: the flags are not modified if CX == 0 */ | |
| 8 | v1 = EAX & DATA_MASK; | |
| 9 | inc = (DF << SHIFT); | |
| 10 | do { | |
| 11 | v2 = glue(ldu, SUFFIX)(DI_ADDR); | |
| 12 | INC_DI(); | |
| 13 | DEC_CX(); | |
| 14 | if (v1 != v2) | |
| 15 | break; | |
| 16 | } while (CX != 0); | |
| 5797fa5d | 17 | CC_SRC = v2; |
| 24f9e90b FB |
18 | CC_DST = v1 - v2; |
| 19 | CC_OP = CC_OP_SUBB + SHIFT; | |
| 20 | } | |
| 21 | FORCE_RET(); | |
| 22 | } | |
| 23 | ||
| 24 | void OPPROTO glue(glue(op_repnz_scas, SUFFIX), STRING_SUFFIX)(void) | |
| 25 | { | |
| 26 | int v1, v2, inc; | |
| 27 | ||
| 28 | if (CX != 0) { | |
| 29 | /* NOTE: the flags are not modified if CX == 0 */ | |
| 30 | v1 = EAX & DATA_MASK; | |
| 31 | inc = (DF << SHIFT); | |
| 32 | do { | |
| 33 | v2 = glue(ldu, SUFFIX)(DI_ADDR); | |
| 34 | INC_DI(); | |
| 35 | DEC_CX(); | |
| 36 | if (v1 == v2) | |
| 37 | break; | |
| 38 | } while (CX != 0); | |
| 5797fa5d | 39 | CC_SRC = v2; |
| 24f9e90b FB |
40 | CC_DST = v1 - v2; |
| 41 | CC_OP = CC_OP_SUBB + SHIFT; | |
| 42 | } | |
| 43 | FORCE_RET(); | |
| 44 | } | |
| 45 | ||
| 24f9e90b FB |
46 | void OPPROTO glue(glue(op_repz_cmps, SUFFIX), STRING_SUFFIX)(void) |
| 47 | { | |
| 48 | int v1, v2, inc; | |
| 49 | if (CX != 0) { | |
| 50 | inc = (DF << SHIFT); | |
| 51 | do { | |
| 52 | v1 = glue(ldu, SUFFIX)(SI_ADDR); | |
| 53 | v2 = glue(ldu, SUFFIX)(DI_ADDR); | |
| 54 | INC_SI(); | |
| 55 | INC_DI(); | |
| 56 | DEC_CX(); | |
| 57 | if (v1 != v2) | |
| 58 | break; | |
| 59 | } while (CX != 0); | |
| 5797fa5d | 60 | CC_SRC = v2; |
| 24f9e90b FB |
61 | CC_DST = v1 - v2; |
| 62 | CC_OP = CC_OP_SUBB + SHIFT; | |
| 63 | } | |
| 64 | FORCE_RET(); | |
| 65 | } | |
| 66 | ||
| 67 | void OPPROTO glue(glue(op_repnz_cmps, SUFFIX), STRING_SUFFIX)(void) | |
| 68 | { | |
| 69 | int v1, v2, inc; | |
| 70 | if (CX != 0) { | |
| 71 | inc = (DF << SHIFT); | |
| 72 | do { | |
| 73 | v1 = glue(ldu, SUFFIX)(SI_ADDR); | |
| 74 | v2 = glue(ldu, SUFFIX)(DI_ADDR); | |
| 75 | INC_SI(); | |
| 76 | INC_DI(); | |
| 77 | DEC_CX(); | |
| 78 | if (v1 == v2) | |
| 79 | break; | |
| 80 | } while (CX != 0); | |
| 5797fa5d | 81 | CC_SRC = v2; |
| 24f9e90b FB |
82 | CC_DST = v1 - v2; |
| 83 | CC_OP = CC_OP_SUBB + SHIFT; | |
| 84 | } | |
| 85 | FORCE_RET(); | |
| 86 | } | |
| 87 | ||
| 24f9e90b FB |
88 | #undef STRING_SUFFIX |
| 89 | #undef SI_ADDR | |
| 90 | #undef DI_ADDR | |
| 91 | #undef INC_SI | |
| 92 | #undef INC_DI | |
| 93 | #undef CX | |
| 94 | #undef DEC_CX |