diff options
Diffstat (limited to 'target-tricore/op_helper.c')
| -rw-r--r-- | target-tricore/op_helper.c | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/target-tricore/op_helper.c b/target-tricore/op_helper.c index 98f28d5623..63d2d56a9d 100644 --- a/target-tricore/op_helper.c +++ b/target-tricore/op_helper.c @@ -1033,6 +1033,201 @@ uint32_t helper_sha_h(target_ulong r1, target_ulong r2) } } +uint32_t helper_bmerge(target_ulong r1, target_ulong r2) +{ + uint32_t i, ret; + + ret = 0; + for (i = 0; i < 16; i++) { + ret |= (r1 & 1) << (2 * i + 1); + ret |= (r2 & 1) << (2 * i); + r1 = r1 >> 1; + r2 = r2 >> 1; + } + return ret; +} + +uint64_t helper_bsplit(uint32_t r1) +{ + int32_t i; + uint64_t ret; + + ret = 0; + for (i = 0; i < 32; i = i + 2) { + /* even */ + ret |= (r1 & 1) << (i/2); + r1 = r1 >> 1; + /* odd */ + ret |= (uint64_t)(r1 & 1) << (i/2 + 32); + r1 = r1 >> 1; + } + return ret; +} + +uint32_t helper_parity(target_ulong r1) +{ + uint32_t ret; + uint32_t nOnes, i; + + ret = 0; + nOnes = 0; + for (i = 0; i < 8; i++) { + ret ^= (r1 & 1); + r1 = r1 >> 1; + } + /* second byte */ + nOnes = 0; + for (i = 0; i < 8; i++) { + nOnes ^= (r1 & 1); + r1 = r1 >> 1; + } + ret |= nOnes << 8; + /* third byte */ + nOnes = 0; + for (i = 0; i < 8; i++) { + nOnes ^= (r1 & 1); + r1 = r1 >> 1; + } + ret |= nOnes << 16; + /* fourth byte */ + nOnes = 0; + for (i = 0; i < 8; i++) { + nOnes ^= (r1 & 1); + r1 = r1 >> 1; + } + ret |= nOnes << 24; + + return ret; +} + +uint64_t helper_unpack(target_ulong arg1) +{ + int32_t fp_exp = extract32(arg1, 23, 8); + int32_t fp_frac = extract32(arg1, 0, 23); + uint64_t ret; + int32_t int_exp, int_mant; + + if (fp_exp == 255) { + int_exp = 255; + int_mant = (fp_frac << 7); + } else if ((fp_exp == 0) && (fp_frac == 0)) { + int_exp = -127; + int_mant = 0; + } else if ((fp_exp == 0) && (fp_frac != 0)) { + int_exp = -126; + int_mant = (fp_frac << 7); + } else { + int_exp = fp_exp - 127; + int_mant = (fp_frac << 7); + int_mant |= (1 << 30); + } + ret = int_exp; + ret = ret << 32; + ret |= int_mant; + + return ret; +} + +uint64_t helper_dvinit_b_13(CPUTriCoreState *env, uint32_t r1, uint32_t r2) +{ + uint64_t ret; + int32_t abs_sig_dividend, abs_base_dividend, abs_divisor; + int32_t quotient_sign; + + ret = sextract32(r1, 0, 32); + ret = ret << 24; + quotient_sign = 0; + if (!((r1 & 0x80000000) == (r2 & 0x80000000))) { + ret |= 0xffffff; + quotient_sign = 1; + } + + abs_sig_dividend = abs(r1) >> 7; + abs_base_dividend = abs(r1) & 0x7f; + abs_divisor = abs(r1); + /* calc overflow */ + env->PSW_USB_V = 0; + if ((quotient_sign) && (abs_divisor)) { + env->PSW_USB_V = (((abs_sig_dividend == abs_divisor) && + (abs_base_dividend >= abs_divisor)) || + (abs_sig_dividend > abs_divisor)); + } else { + env->PSW_USB_V = (abs_sig_dividend >= abs_divisor); + } + env->PSW_USB_V = env->PSW_USB_V << 31; + env->PSW_USB_SV |= env->PSW_USB_V; + env->PSW_USB_AV = 0; + + return ret; +} + +uint64_t helper_dvinit_b_131(CPUTriCoreState *env, uint32_t r1, uint32_t r2) +{ + uint64_t ret = sextract32(r1, 0, 32); + + ret = ret << 24; + if (!((r1 & 0x80000000) == (r2 & 0x80000000))) { + ret |= 0xffffff; + } + /* calc overflow */ + env->PSW_USB_V = ((r2 == 0) || ((r2 == 0xffffffff) && (r1 == 0xffffff80))); + env->PSW_USB_V = env->PSW_USB_V << 31; + env->PSW_USB_SV |= env->PSW_USB_V; + env->PSW_USB_AV = 0; + + return ret; +} + +uint64_t helper_dvinit_h_13(CPUTriCoreState *env, uint32_t r1, uint32_t r2) +{ + uint64_t ret; + int32_t abs_sig_dividend, abs_base_dividend, abs_divisor; + int32_t quotient_sign; + + ret = sextract32(r1, 0, 32); + ret = ret << 16; + quotient_sign = 0; + if (!((r1 & 0x80000000) == (r2 & 0x80000000))) { + ret |= 0xffff; + quotient_sign = 1; + } + + abs_sig_dividend = abs(r1) >> 7; + abs_base_dividend = abs(r1) & 0x7f; + abs_divisor = abs(r1); + /* calc overflow */ + env->PSW_USB_V = 0; + if ((quotient_sign) && (abs_divisor)) { + env->PSW_USB_V = (((abs_sig_dividend == abs_divisor) && + (abs_base_dividend >= abs_divisor)) || + (abs_sig_dividend > abs_divisor)); + } else { + env->PSW_USB_V = (abs_sig_dividend >= abs_divisor); + } + env->PSW_USB_V = env->PSW_USB_V << 31; + env->PSW_USB_SV |= env->PSW_USB_V; + env->PSW_USB_AV = 0; + + return ret; +} + +uint64_t helper_dvinit_h_131(CPUTriCoreState *env, uint32_t r1, uint32_t r2) +{ + uint64_t ret = sextract32(r1, 0, 32); + + ret = ret << 16; + if (!((r1 & 0x80000000) == (r2 & 0x80000000))) { + ret |= 0xffff; + } + /* calc overflow */ + env->PSW_USB_V = ((r2 == 0) || ((r2 == 0xffffffff) && (r1 == 0xffff8000))); + env->PSW_USB_V = env->PSW_USB_V << 31; + env->PSW_USB_SV |= env->PSW_USB_V; + env->PSW_USB_AV = 0; + + return ret; +} + /* context save area (CSA) related helpers */ static int cdc_increment(target_ulong *psw) |