diff options
Diffstat (limited to 'target-sh4/op_helper.c')
| -rw-r--r-- | target-sh4/op_helper.c | 79 |
1 files changed, 33 insertions, 46 deletions
diff --git a/target-sh4/op_helper.c b/target-sh4/op_helper.c index 8504115400..e3f9527d24 100644 --- a/target-sh4/op_helper.c +++ b/target-sh4/op_helper.c @@ -108,36 +108,37 @@ void helper_trapa(uint32_t tra) cpu_loop_exit(); } -void helper_addc_T0_T1(void) +uint32_t helper_addc(uint32_t arg0, uint32_t arg1) { uint32_t tmp0, tmp1; - tmp1 = T0 + T1; - tmp0 = T1; - T1 = tmp1 + (env->sr & 1); + tmp1 = arg0 + arg1; + tmp0 = arg1; + arg1 = tmp1 + (env->sr & 1); if (tmp0 > tmp1) env->sr |= SR_T; else env->sr &= ~SR_T; - if (tmp1 > T1) + if (tmp1 > arg1) env->sr |= SR_T; + return arg1; } -void helper_addv_T0_T1(void) +uint32_t helper_addv(uint32_t arg0, uint32_t arg1) { uint32_t dest, src, ans; - if ((int32_t) T1 >= 0) + if ((int32_t) arg1 >= 0) dest = 0; else dest = 1; - if ((int32_t) T0 >= 0) + if ((int32_t) arg0 >= 0) src = 0; else src = 1; src += dest; - T1 += T0; - if ((int32_t) T1 >= 0) + arg1 += arg0; + if ((int32_t) arg1 >= 0) ans = 0; else ans = 1; @@ -149,6 +150,7 @@ void helper_addv_T0_T1(void) env->sr &= ~SR_T; } else env->sr &= ~SR_T; + return arg1; } #define T (env->sr & SR_T) @@ -268,30 +270,12 @@ void helper_div1_T0_T1(void) //printf("Output: T1=0x%08x M=%d Q=%d T=%d\n", T1, M, Q, T); } -void helper_dmulsl_T0_T1() -{ - int64_t res; - - res = (int64_t) (int32_t) T0 *(int64_t) (int32_t) T1; - env->mach = (res >> 32) & 0xffffffff; - env->macl = res & 0xffffffff; -} - -void helper_dmulul_T0_T1() -{ - uint64_t res; - - res = (uint64_t) (uint32_t) T0 *(uint64_t) (uint32_t) T1; - env->mach = (res >> 32) & 0xffffffff; - env->macl = res & 0xffffffff; -} - -void helper_macl_T0_T1() +void helper_macl(uint32_t arg0, uint32_t arg1) { int64_t res; res = ((uint64_t) env->mach << 32) | env->macl; - res += (int64_t) (int32_t) T0 *(int64_t) (int32_t) T1; + res += (int64_t) (int32_t) arg0 *(int64_t) (int32_t) arg1; env->mach = (res >> 32) & 0xffffffff; env->macl = res & 0xffffffff; if (env->sr & SR_S) { @@ -302,12 +286,12 @@ void helper_macl_T0_T1() } } -void helper_macw_T0_T1() +void helper_macw(uint32_t arg0, uint32_t arg1) { int64_t res; res = ((uint64_t) env->mach << 32) | env->macl; - res += (int64_t) (int16_t) T0 *(int64_t) (int16_t) T1; + res += (int64_t) (int16_t) arg0 *(int64_t) (int16_t) arg1; env->mach = (res >> 32) & 0xffffffff; env->macl = res & 0xffffffff; if (env->sr & SR_S) { @@ -321,50 +305,52 @@ void helper_macw_T0_T1() } } -void helper_negc_T0() +uint32_t helper_negc(uint32_t arg) { uint32_t temp; - temp = -T0; - T0 = temp - (env->sr & SR_T); + temp = -arg; + arg = temp - (env->sr & SR_T); if (0 < temp) env->sr |= SR_T; else env->sr &= ~SR_T; - if (temp < T0) + if (temp < arg) env->sr |= SR_T; + return arg; } -void helper_subc_T0_T1() +uint32_t helper_subc(uint32_t arg0, uint32_t arg1) { uint32_t tmp0, tmp1; - tmp1 = T1 - T0; - tmp0 = T1; - T1 = tmp1 - (env->sr & SR_T); + tmp1 = arg1 - arg0; + tmp0 = arg1; + arg1 = tmp1 - (env->sr & SR_T); if (tmp0 < tmp1) env->sr |= SR_T; else env->sr &= ~SR_T; - if (tmp1 < T1) + if (tmp1 < arg1) env->sr |= SR_T; + return arg1; } -void helper_subv_T0_T1() +uint32_t helper_subv(uint32_t arg0, uint32_t arg1) { int32_t dest, src, ans; - if ((int32_t) T1 >= 0) + if ((int32_t) arg1 >= 0) dest = 0; else dest = 1; - if ((int32_t) T0 >= 0) + if ((int32_t) arg0 >= 0) src = 0; else src = 1; src += dest; - T1 -= T0; - if ((int32_t) T1 >= 0) + arg1 -= arg0; + if ((int32_t) arg1 >= 0) ans = 0; else ans = 1; @@ -376,6 +362,7 @@ void helper_subv_T0_T1() env->sr &= ~SR_T; } else env->sr &= ~SR_T; + return arg1; } void helper_rotcl(uint32_t * addr) |