diff options
Diffstat (limited to 'target-tricore/op_helper.c')
| -rw-r--r-- | target-tricore/op_helper.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/target-tricore/op_helper.c b/target-tricore/op_helper.c index 40d32af5d3..d6b01c3c71 100644 --- a/target-tricore/op_helper.c +++ b/target-tricore/op_helper.c @@ -340,6 +340,31 @@ target_ulong helper_sub_ssov(CPUTriCoreState *env, target_ulong r1, return ssov32(env, result); } +uint64_t helper_sub64_ssov(CPUTriCoreState *env, uint64_t r1, uint64_t r2) +{ + uint64_t result; + int64_t ovf; + + result = r1 - r2; + ovf = (result ^ r1) & (r1 ^ r2); + env->PSW_USB_AV = (result ^ result * 2u) >> 32; + env->PSW_USB_SAV |= env->PSW_USB_AV; + if (ovf < 0) { + env->PSW_USB_V = (1 << 31); + env->PSW_USB_SV = (1 << 31); + /* ext_ret > MAX_INT */ + if ((int64_t)r1 >= 0) { + result = INT64_MAX; + /* ext_ret < MIN_INT */ + } else { + result = INT64_MIN; + } + } else { + env->PSW_USB_V = 0; + } + return result; +} + target_ulong helper_sub_h_ssov(CPUTriCoreState *env, target_ulong r1, target_ulong r2) { @@ -350,6 +375,52 @@ target_ulong helper_sub_h_ssov(CPUTriCoreState *env, target_ulong r1, return ssov16(env, ret_hw0, ret_hw1); } +uint32_t helper_subr_h_ssov(CPUTriCoreState *env, uint64_t r1, uint32_t r2_l, + uint32_t r2_h) +{ + int64_t mul_res0 = sextract64(r1, 0, 32); + int64_t mul_res1 = sextract64(r1, 32, 32); + int64_t r2_low = sextract64(r2_l, 0, 32); + int64_t r2_high = sextract64(r2_h, 0, 32); + int64_t result0, result1; + uint32_t ovf0, ovf1; + uint32_t avf0, avf1; + + ovf0 = ovf1 = 0; + + result0 = r2_low - mul_res0 + 0x8000; + result1 = r2_high - mul_res1 + 0x8000; + + avf0 = result0 * 2u; + avf0 = result0 ^ avf0; + avf1 = result1 * 2u; + avf1 = result1 ^ avf1; + + if (result0 > INT32_MAX) { + ovf0 = (1 << 31); + result0 = INT32_MAX; + } else if (result0 < INT32_MIN) { + ovf0 = (1 << 31); + result0 = INT32_MIN; + } + + if (result1 > INT32_MAX) { + ovf1 = (1 << 31); + result1 = INT32_MAX; + } else if (result1 < INT32_MIN) { + ovf1 = (1 << 31); + result1 = INT32_MIN; + } + + env->PSW_USB_V = ovf0 | ovf1; + env->PSW_USB_SV |= env->PSW_USB_V; + + env->PSW_USB_AV = avf0 | avf1; + env->PSW_USB_SAV |= env->PSW_USB_AV; + + return (result1 & 0xffff0000ULL) | ((result0 >> 16) & 0xffffULL); +} + target_ulong helper_sub_suov(CPUTriCoreState *env, target_ulong r1, target_ulong r2) { @@ -1017,6 +1088,44 @@ uint32_t helper_add_h(CPUTriCoreState *env, target_ulong r1, target_ulong r2) return ret; } +uint32_t helper_subr_h(CPUTriCoreState *env, uint64_t r1, uint32_t r2_l, + uint32_t r2_h) +{ + int64_t mul_res0 = sextract64(r1, 0, 32); + int64_t mul_res1 = sextract64(r1, 32, 32); + int64_t r2_low = sextract64(r2_l, 0, 32); + int64_t r2_high = sextract64(r2_h, 0, 32); + int64_t result0, result1; + uint32_t ovf0, ovf1; + uint32_t avf0, avf1; + + ovf0 = ovf1 = 0; + + result0 = r2_low - mul_res0 + 0x8000; + result1 = r2_high - mul_res1 + 0x8000; + + if ((result0 > INT32_MAX) || (result0 < INT32_MIN)) { + ovf0 = (1 << 31); + } + + if ((result1 > INT32_MAX) || (result1 < INT32_MIN)) { + ovf1 = (1 << 31); + } + + env->PSW_USB_V = ovf0 | ovf1; + env->PSW_USB_SV |= env->PSW_USB_V; + + avf0 = result0 * 2u; + avf0 = result0 ^ avf0; + avf1 = result1 * 2u; + avf1 = result1 ^ avf1; + + env->PSW_USB_AV = avf0 | avf1; + env->PSW_USB_SAV |= env->PSW_USB_AV; + + return (result1 & 0xffff0000ULL) | ((result0 >> 16) & 0xffffULL); +} + uint32_t helper_sub_b(CPUTriCoreState *env, target_ulong r1, target_ulong r2) { int32_t b, i; |