diff options
Diffstat (limited to 'target-sh4/op_helper.c')
| -rw-r--r-- | target-sh4/op_helper.c | 63 |
1 files changed, 20 insertions, 43 deletions
diff --git a/target-sh4/op_helper.c b/target-sh4/op_helper.c index a4498ce5d0..d3bde5c649 100644 --- a/target-sh4/op_helper.c +++ b/target-sh4/op_helper.c @@ -163,27 +163,27 @@ uint32_t helper_addv(uint32_t arg0, uint32_t arg1) #define SETM env->sr |= SR_M #define CLRM env->sr &= ~SR_M -void helper_div1_T0_T1(void) +uint32_t helper_div1(uint32_t arg0, uint32_t arg1) { uint32_t tmp0, tmp2; uint8_t old_q, tmp1 = 0xff; - //printf("div1 T0=0x%08x T1=0x%08x M=%d Q=%d T=%d\n", T0, T1, M, Q, T); + //printf("div1 arg0=0x%08x arg1=0x%08x M=%d Q=%d T=%d\n", arg0, arg1, M, Q, T); old_q = Q; - if ((0x80000000 & T1) != 0) + if ((0x80000000 & arg1) != 0) SETQ; else CLRQ; - tmp2 = T0; - T1 <<= 1; - T1 |= T; + tmp2 = arg0; + arg1 <<= 1; + arg1 |= T; switch (old_q) { case 0: switch (M) { case 0: - tmp0 = T1; - T1 -= tmp2; - tmp1 = T1 > tmp0; + tmp0 = arg1; + arg1 -= tmp2; + tmp1 = arg1 > tmp0; switch (Q) { case 0: if (tmp1) @@ -200,9 +200,9 @@ void helper_div1_T0_T1(void) } break; case 1: - tmp0 = T1; - T1 += tmp2; - tmp1 = T1 < tmp0; + tmp0 = arg1; + arg1 += tmp2; + tmp1 = arg1 < tmp0; switch (Q) { case 0: if (tmp1 == 0) @@ -223,9 +223,9 @@ void helper_div1_T0_T1(void) case 1: switch (M) { case 0: - tmp0 = T1; - T1 += tmp2; - tmp1 = T1 < tmp0; + tmp0 = arg1; + arg1 += tmp2; + tmp1 = arg1 < tmp0; switch (Q) { case 0: if (tmp1) @@ -242,9 +242,9 @@ void helper_div1_T0_T1(void) } break; case 1: - tmp0 = T1; - T1 -= tmp2; - tmp1 = T1 > tmp0; + tmp0 = arg1; + arg1 -= tmp2; + tmp1 = arg1 > tmp0; switch (Q) { case 0: if (tmp1 == 0) @@ -267,7 +267,8 @@ void helper_div1_T0_T1(void) SETT; else CLRT; - //printf("Output: T1=0x%08x M=%d Q=%d T=%d\n", T1, M, Q, T); + //printf("Output: arg1=0x%08x M=%d Q=%d T=%d\n", arg1, M, Q, T); + return arg1; } void helper_macl(uint32_t arg0, uint32_t arg1) @@ -365,30 +366,6 @@ uint32_t helper_subv(uint32_t arg0, uint32_t arg1) return arg1; } -void helper_rotcl(uint32_t * addr) -{ - uint32_t new; - - new = (*addr << 1) | (env->sr & SR_T); - if (*addr & 0x80000000) - env->sr |= SR_T; - else - env->sr &= ~SR_T; - *addr = new; -} - -void helper_rotcr(uint32_t * addr) -{ - uint32_t new; - - new = (*addr >> 1) | ((env->sr & SR_T) ? 0x80000000 : 0); - if (*addr & 1) - env->sr |= SR_T; - else - env->sr &= ~SR_T; - *addr = new; -} - void helper_ld_fpscr(uint32_t val) { env->fpscr = val & 0x003fffff; |