diff options
Diffstat (limited to 'target-ppc/op.c')
| -rw-r--r-- | target-ppc/op.c | 114 |
1 files changed, 39 insertions, 75 deletions
diff --git a/target-ppc/op.c b/target-ppc/op.c index 5887424..a9ab629 100644 --- a/target-ppc/op.c +++ b/target-ppc/op.c @@ -58,49 +58,6 @@ void OPPROTO op_store_cr (void) RETURN(); } -void OPPROTO op_load_xer_cr (void) -{ - T0 = (xer_so << 3) | (xer_ov << 2) | (xer_ca << 1); - RETURN(); -} - -void OPPROTO op_clear_xer_ov (void) -{ - xer_so = 0; - xer_ov = 0; - RETURN(); -} - -void OPPROTO op_clear_xer_ca (void) -{ - xer_ca = 0; - RETURN(); -} - -void OPPROTO op_load_xer_bc (void) -{ - T1 = xer_bc; - RETURN(); -} - -void OPPROTO op_store_xer_bc (void) -{ - xer_bc = T0; - RETURN(); -} - -void OPPROTO op_load_xer (void) -{ - T0 = hreg_load_xer(env); - RETURN(); -} - -void OPPROTO op_store_xer (void) -{ - hreg_store_xer(env, T0); - RETURN(); -} - #if defined(TARGET_PPC64) void OPPROTO op_store_pri (void) { @@ -574,18 +531,26 @@ void OPPROTO op_dec_ctr (void) /* add */ void OPPROTO op_check_addo (void) { - xer_ov = (((uint32_t)T2 ^ (uint32_t)T1 ^ UINT32_MAX) & + int ov = (((uint32_t)T2 ^ (uint32_t)T1 ^ UINT32_MAX) & ((uint32_t)T2 ^ (uint32_t)T0)) >> 31; - xer_so |= xer_ov; + if (ov) { + env->xer |= (1 << XER_OV) | (1 << XER_SO); + } else { + env->xer &= ~(1 << XER_OV); + } RETURN(); } #if defined(TARGET_PPC64) void OPPROTO op_check_addo_64 (void) { - xer_ov = (((uint64_t)T2 ^ (uint64_t)T1 ^ UINT64_MAX) & + int ov = (((uint64_t)T2 ^ (uint64_t)T1 ^ UINT64_MAX) & ((uint64_t)T2 ^ (uint64_t)T0)) >> 63; - xer_so |= xer_ov; + if (ov) { + env->xer |= (1 << XER_OV) | (1 << XER_SO); + } else { + env->xer &= ~(1 << XER_OV); + } RETURN(); } #endif @@ -594,9 +559,9 @@ void OPPROTO op_check_addo_64 (void) void OPPROTO op_check_addc (void) { if (likely((uint32_t)T0 >= (uint32_t)T2)) { - xer_ca = 0; + env->xer &= ~(1 << XER_CA); } else { - xer_ca = 1; + env->xer |= (1 << XER_CA); } RETURN(); } @@ -605,9 +570,9 @@ void OPPROTO op_check_addc (void) void OPPROTO op_check_addc_64 (void) { if (likely((uint64_t)T0 >= (uint64_t)T2)) { - xer_ca = 0; + env->xer &= ~(1 << XER_CA); } else { - xer_ca = 1; + env->xer |= (1 << XER_CA); } RETURN(); } @@ -633,7 +598,7 @@ void OPPROTO op_add_me (void) { T0 += xer_ca + (-1); if (likely((uint32_t)T1 != 0)) - xer_ca = 1; + env->xer |= (1 << XER_CA); RETURN(); } @@ -642,7 +607,7 @@ void OPPROTO op_add_me_64 (void) { T0 += xer_ca + (-1); if (likely((uint64_t)T1 != 0)) - xer_ca = 1; + env->xer |= (1 << XER_CA); RETURN(); } #endif @@ -855,9 +820,9 @@ void OPPROTO op_nego_64 (void) void OPPROTO op_check_subfc (void) { if (likely((uint32_t)T0 > (uint32_t)T1)) { - xer_ca = 0; + env->xer &= ~(1 << XER_CA); } else { - xer_ca = 1; + env->xer |= (1 << XER_CA); } RETURN(); } @@ -866,9 +831,9 @@ void OPPROTO op_check_subfc (void) void OPPROTO op_check_subfc_64 (void) { if (likely((uint64_t)T0 > (uint64_t)T1)) { - xer_ca = 0; + env->xer &= ~(1 << XER_CA); } else { - xer_ca = 1; + env->xer |= (1 << XER_CA); } RETURN(); } @@ -894,9 +859,9 @@ void OPPROTO op_subfic (void) { T0 = (int32_t)PARAM1 + ~T0 + 1; if ((uint32_t)T0 <= (uint32_t)PARAM1) { - xer_ca = 1; + env->xer |= (1 << XER_CA); } else { - xer_ca = 0; + env->xer &= ~(1 << XER_CA); } RETURN(); } @@ -906,9 +871,9 @@ void OPPROTO op_subfic_64 (void) { T0 = (int64_t)PARAM1 + ~T0 + 1; if ((uint64_t)T0 <= (uint64_t)PARAM1) { - xer_ca = 1; + env->xer |= (1 << XER_CA); } else { - xer_ca = 0; + env->xer &= ~(1 << XER_CA); } RETURN(); } @@ -919,7 +884,7 @@ void OPPROTO op_subfme (void) { T0 = ~T0 + xer_ca - 1; if (likely((uint32_t)T0 != UINT32_MAX)) - xer_ca = 1; + env->xer |= (1 << XER_CA); RETURN(); } @@ -928,7 +893,7 @@ void OPPROTO op_subfme_64 (void) { T0 = ~T0 + xer_ca - 1; if (likely((uint64_t)T0 != UINT64_MAX)) - xer_ca = 1; + env->xer |= (1 << XER_CA); RETURN(); } #endif @@ -953,9 +918,9 @@ void OPPROTO op_subfze (void) T1 = ~T0; T0 = T1 + xer_ca; if ((uint32_t)T0 < (uint32_t)T1) { - xer_ca = 1; + env->xer |= (1 << XER_CA); } else { - xer_ca = 0; + env->xer &= ~(1 << XER_CA); } RETURN(); } @@ -966,9 +931,9 @@ void OPPROTO op_subfze_64 (void) T1 = ~T0; T0 = T1 + xer_ca; if ((uint64_t)T0 < (uint64_t)T1) { - xer_ca = 1; + env->xer |= (1 << XER_CA); } else { - xer_ca = 0; + env->xer &= ~(1 << XER_CA); } RETURN(); } @@ -1317,9 +1282,9 @@ void OPPROTO op_srawi (void) T0 = (int32_t)T0 >> PARAM1; if ((int32_t)T1 < 0 && (T1 & mask) != 0) { - xer_ca = 1; + env->xer |= (1 << XER_CA); } else { - xer_ca = 0; + env->xer &= ~(1 << XER_CA); } RETURN(); } @@ -1331,9 +1296,9 @@ void OPPROTO op_sradi (void) T0 = (int64_t)T0 >> PARAM1; if ((int64_t)T1 < 0 && ((uint64_t)T1 & mask) != 0) { - xer_ca = 1; + env->xer |= (1 << XER_CA); } else { - xer_ca = 0; + env->xer &= ~(1 << XER_CA); } RETURN(); } @@ -1975,7 +1940,7 @@ void OPPROTO op_POWER_nabso (void) /* nabs never overflows */ if (T0 > 0) T0 = -T0; - xer_ov = 0; + env->xer &= ~(1 << XER_OV); RETURN(); } @@ -2189,10 +2154,9 @@ void OPPROTO op_405_check_sat (void) void OPPROTO op_405_check_ovu (void) { if (likely(T0 >= T2)) { - xer_ov = 0; + env->xer &= ~(1 << XER_OV); } else { - xer_ov = 1; - xer_so = 1; + env->xer |= (1 << XER_OV) | (1 << XER_SO); } RETURN(); } |