diff options
Diffstat (limited to 'target/loongarch/fpu_helper.c')
| -rw-r--r-- | target/loongarch/fpu_helper.c | 862 |
1 files changed, 862 insertions, 0 deletions
diff --git a/target/loongarch/fpu_helper.c b/target/loongarch/fpu_helper.c new file mode 100644 index 0000000000..3d0cb8dd0d --- /dev/null +++ b/target/loongarch/fpu_helper.c @@ -0,0 +1,862 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * LoongArch float point emulation helpers for QEMU + * + * Copyright (c) 2021 Loongson Technology Corporation Limited + */ + +#include "qemu/osdep.h" +#include "cpu.h" +#include "exec/helper-proto.h" +#include "exec/exec-all.h" +#include "exec/cpu_ldst.h" +#include "fpu/softfloat.h" +#include "internals.h" + +#define FLOAT_TO_INT32_OVERFLOW 0x7fffffff +#define FLOAT_TO_INT64_OVERFLOW 0x7fffffffffffffffULL + +static inline uint64_t nanbox_s(float32 fp) +{ + return fp | MAKE_64BIT_MASK(32, 32); +} + +/* Convert loongarch rounding mode in fcsr0 to IEEE library */ +static const FloatRoundMode ieee_rm[4] = { + float_round_nearest_even, + float_round_to_zero, + float_round_up, + float_round_down +}; + +void restore_fp_status(CPULoongArchState *env) +{ + set_float_rounding_mode(ieee_rm[(env->fcsr0 >> FCSR0_RM) & 0x3], + &env->fp_status); + set_flush_to_zero(0, &env->fp_status); +} + +static int ieee_ex_to_loongarch(int xcpt) +{ + int ret = 0; + if (xcpt & float_flag_invalid) { + ret |= FP_INVALID; + } + if (xcpt & float_flag_overflow) { + ret |= FP_OVERFLOW; + } + if (xcpt & float_flag_underflow) { + ret |= FP_UNDERFLOW; + } + if (xcpt & float_flag_divbyzero) { + ret |= FP_DIV0; + } + if (xcpt & float_flag_inexact) { + ret |= FP_INEXACT; + } + return ret; +} + +static void update_fcsr0_mask(CPULoongArchState *env, uintptr_t pc, int mask) +{ + int flags = get_float_exception_flags(&env->fp_status); + + set_float_exception_flags(0, &env->fp_status); + + flags &= ~mask; + + if (!flags) { + SET_FP_CAUSE(env->fcsr0, flags); + return; + } else { + flags = ieee_ex_to_loongarch(flags); + SET_FP_CAUSE(env->fcsr0, flags); + } + + if (GET_FP_ENABLES(env->fcsr0) & flags) { + do_raise_exception(env, EXCCODE_FPE, pc); + } else { + UPDATE_FP_FLAGS(env->fcsr0, flags); + } +} + +static void update_fcsr0(CPULoongArchState *env, uintptr_t pc) +{ + update_fcsr0_mask(env, pc, 0); +} + +uint64_t helper_fadd_s(CPULoongArchState *env, uint64_t fj, uint64_t fk) +{ + uint64_t fd; + + fd = nanbox_s(float32_add((uint32_t)fj, (uint32_t)fk, &env->fp_status)); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fadd_d(CPULoongArchState *env, uint64_t fj, uint64_t fk) +{ + uint64_t fd; + + fd = float64_add(fj, fk, &env->fp_status); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fsub_s(CPULoongArchState *env, uint64_t fj, uint64_t fk) +{ + uint64_t fd; + + fd = nanbox_s(float32_sub((uint32_t)fj, (uint32_t)fk, &env->fp_status)); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fsub_d(CPULoongArchState *env, uint64_t fj, uint64_t fk) +{ + uint64_t fd; + + fd = float64_sub(fj, fk, &env->fp_status); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fmul_s(CPULoongArchState *env, uint64_t fj, uint64_t fk) +{ + uint64_t fd; + + fd = nanbox_s(float32_mul((uint32_t)fj, (uint32_t)fk, &env->fp_status)); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fmul_d(CPULoongArchState *env, uint64_t fj, uint64_t fk) +{ + uint64_t fd; + + fd = float64_mul(fj, fk, &env->fp_status); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fdiv_s(CPULoongArchState *env, uint64_t fj, uint64_t fk) +{ + uint64_t fd; + + fd = nanbox_s(float32_div((uint32_t)fj, (uint32_t)fk, &env->fp_status)); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fdiv_d(CPULoongArchState *env, uint64_t fj, uint64_t fk) +{ + uint64_t fd; + + fd = float64_div(fj, fk, &env->fp_status); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fmax_s(CPULoongArchState *env, uint64_t fj, uint64_t fk) +{ + uint64_t fd; + + fd = nanbox_s(float32_maxnum((uint32_t)fj, (uint32_t)fk, &env->fp_status)); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fmax_d(CPULoongArchState *env, uint64_t fj, uint64_t fk) +{ + uint64_t fd; + + fd = float64_maxnum(fj, fk, &env->fp_status); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fmin_s(CPULoongArchState *env, uint64_t fj, uint64_t fk) +{ + uint64_t fd; + + fd = nanbox_s(float32_minnum((uint32_t)fj, (uint32_t)fk, &env->fp_status)); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fmin_d(CPULoongArchState *env, uint64_t fj, uint64_t fk) +{ + uint64_t fd; + + fd = float64_minnum(fj, fk, &env->fp_status); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fmaxa_s(CPULoongArchState *env, uint64_t fj, uint64_t fk) +{ + uint64_t fd; + + fd = nanbox_s(float32_maxnummag((uint32_t)fj, + (uint32_t)fk, &env->fp_status)); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fmaxa_d(CPULoongArchState *env, uint64_t fj, uint64_t fk) +{ + uint64_t fd; + + fd = float64_maxnummag(fj, fk, &env->fp_status); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fmina_s(CPULoongArchState *env, uint64_t fj, uint64_t fk) +{ + uint64_t fd; + + fd = nanbox_s(float32_minnummag((uint32_t)fj, + (uint32_t)fk, &env->fp_status)); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fmina_d(CPULoongArchState *env, uint64_t fj, uint64_t fk) +{ + uint64_t fd; + + fd = float64_minnummag(fj, fk, &env->fp_status); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fscaleb_s(CPULoongArchState *env, uint64_t fj, uint64_t fk) +{ + uint64_t fd; + int32_t n = (int32_t)fk; + + fd = nanbox_s(float32_scalbn((uint32_t)fj, + n > 0x200 ? 0x200 : + n < -0x200 ? -0x200 : n, + &env->fp_status)); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fscaleb_d(CPULoongArchState *env, uint64_t fj, uint64_t fk) +{ + uint64_t fd; + int64_t n = (int64_t)fk; + + fd = float64_scalbn(fj, + n > 0x1000 ? 0x1000 : + n < -0x1000 ? -0x1000 : n, + &env->fp_status); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fsqrt_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = nanbox_s(float32_sqrt((uint32_t)fj, &env->fp_status)); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fsqrt_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = float64_sqrt(fj, &env->fp_status); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_frecip_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = nanbox_s(float32_div(float32_one, (uint32_t)fj, &env->fp_status)); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_frecip_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = float64_div(float64_one, fj, &env->fp_status); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_frsqrt_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + uint32_t fp; + + fp = float32_sqrt((uint32_t)fj, &env->fp_status); + fd = nanbox_s(float32_div(float32_one, fp, &env->fp_status)); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_frsqrt_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fp, fd; + + fp = float64_sqrt(fj, &env->fp_status); + fd = float64_div(float64_one, fp, &env->fp_status); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_flogb_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + uint32_t fp; + float_status *status = &env->fp_status; + FloatRoundMode old_mode = get_float_rounding_mode(status); + + set_float_rounding_mode(float_round_down, status); + fp = float32_log2((uint32_t)fj, status); + fd = nanbox_s(float32_round_to_int(fp, status)); + set_float_rounding_mode(old_mode, status); + update_fcsr0_mask(env, GETPC(), float_flag_inexact); + return fd; +} + +uint64_t helper_flogb_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + float_status *status = &env->fp_status; + FloatRoundMode old_mode = get_float_rounding_mode(status); + + set_float_rounding_mode(float_round_down, status); + fd = float64_log2(fj, status); + fd = float64_round_to_int(fd, status); + set_float_rounding_mode(old_mode, status); + update_fcsr0_mask(env, GETPC(), float_flag_inexact); + return fd; +} + +uint64_t helper_fclass_s(CPULoongArchState *env, uint64_t fj) +{ + float32 f = fj; + bool sign = float32_is_neg(f); + + if (float32_is_infinity(f)) { + return sign ? 1 << 2 : 1 << 6; + } else if (float32_is_zero(f)) { + return sign ? 1 << 5 : 1 << 9; + } else if (float32_is_zero_or_denormal(f)) { + return sign ? 1 << 4 : 1 << 8; + } else if (float32_is_any_nan(f)) { + float_status s = { }; /* for snan_bit_is_one */ + return float32_is_quiet_nan(f, &s) ? 1 << 1 : 1 << 0; + } else { + return sign ? 1 << 3 : 1 << 7; + } +} + +uint64_t helper_fclass_d(CPULoongArchState *env, uint64_t fj) +{ + float64 f = fj; + bool sign = float64_is_neg(f); + + if (float64_is_infinity(f)) { + return sign ? 1 << 2 : 1 << 6; + } else if (float64_is_zero(f)) { + return sign ? 1 << 5 : 1 << 9; + } else if (float64_is_zero_or_denormal(f)) { + return sign ? 1 << 4 : 1 << 8; + } else if (float64_is_any_nan(f)) { + float_status s = { }; /* for snan_bit_is_one */ + return float64_is_quiet_nan(f, &s) ? 1 << 1 : 1 << 0; + } else { + return sign ? 1 << 3 : 1 << 7; + } +} + +uint64_t helper_fmuladd_s(CPULoongArchState *env, uint64_t fj, + uint64_t fk, uint64_t fa, uint32_t flag) +{ + uint64_t fd; + + fd = nanbox_s(float32_muladd((uint32_t)fj, (uint32_t)fk, + (uint32_t)fa, flag, &env->fp_status)); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fmuladd_d(CPULoongArchState *env, uint64_t fj, + uint64_t fk, uint64_t fa, uint32_t flag) +{ + uint64_t fd; + + fd = float64_muladd(fj, fk, fa, flag, &env->fp_status); + update_fcsr0(env, GETPC()); + return fd; +} + +static uint64_t fcmp_common(CPULoongArchState *env, FloatRelation cmp, + uint32_t flags) +{ + bool ret; + + switch (cmp) { + case float_relation_less: + ret = (flags & FCMP_LT); + break; + case float_relation_equal: + ret = (flags & FCMP_EQ); + break; + case float_relation_greater: + ret = (flags & FCMP_GT); + break; + case float_relation_unordered: + ret = (flags & FCMP_UN); + break; + default: + g_assert_not_reached(); + } + update_fcsr0(env, GETPC()); + + return ret; +} + +/* fcmp_cXXX_s */ +uint64_t helper_fcmp_c_s(CPULoongArchState *env, uint64_t fj, + uint64_t fk, uint32_t flags) +{ + FloatRelation cmp = float32_compare_quiet((uint32_t)fj, + (uint32_t)fk, &env->fp_status); + return fcmp_common(env, cmp, flags); +} + +/* fcmp_sXXX_s */ +uint64_t helper_fcmp_s_s(CPULoongArchState *env, uint64_t fj, + uint64_t fk, uint32_t flags) +{ + FloatRelation cmp = float32_compare((uint32_t)fj, + (uint32_t)fk, &env->fp_status); + return fcmp_common(env, cmp, flags); +} + +/* fcmp_cXXX_d */ +uint64_t helper_fcmp_c_d(CPULoongArchState *env, uint64_t fj, + uint64_t fk, uint32_t flags) +{ + FloatRelation cmp = float64_compare_quiet(fj, fk, &env->fp_status); + return fcmp_common(env, cmp, flags); +} + +/* fcmp_sXXX_d */ +uint64_t helper_fcmp_s_d(CPULoongArchState *env, uint64_t fj, + uint64_t fk, uint32_t flags) +{ + FloatRelation cmp = float64_compare(fj, fk, &env->fp_status); + return fcmp_common(env, cmp, flags); +} + +/* floating point conversion */ +uint64_t helper_fcvt_s_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = nanbox_s(float64_to_float32(fj, &env->fp_status)); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fcvt_d_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = float32_to_float64((uint32_t)fj, &env->fp_status); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ffint_s_w(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = nanbox_s(int32_to_float32((int32_t)fj, &env->fp_status)); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ffint_s_l(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = nanbox_s(int64_to_float32(fj, &env->fp_status)); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ffint_d_w(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = int32_to_float64((int32_t)fj, &env->fp_status); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ffint_d_l(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = int64_to_float64(fj, &env->fp_status); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_frint_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = (uint64_t)(float32_round_to_int((uint32_t)fj, &env->fp_status)); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_frint_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = float64_round_to_int(fj, &env->fp_status); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrm_l_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_down, &env->fp_status); + fd = float64_to_int64(fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT64_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrm_l_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_down, &env->fp_status); + fd = float32_to_int64((uint32_t)fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT64_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrm_w_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_down, &env->fp_status); + fd = (uint64_t)float64_to_int32(fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT32_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrm_w_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_down, &env->fp_status); + fd = (uint64_t)float32_to_int32((uint32_t)fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT32_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrp_l_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_up, &env->fp_status); + fd = float64_to_int64(fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT64_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrp_l_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_up, &env->fp_status); + fd = float32_to_int64((uint32_t)fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT64_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrp_w_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_up, &env->fp_status); + fd = (uint64_t)float64_to_int32(fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT32_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrp_w_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_up, &env->fp_status); + fd = (uint64_t)float32_to_int32((uint32_t)fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT32_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrz_l_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + fd = float64_to_int64_round_to_zero(fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT64_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrz_l_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + fd = float32_to_int64_round_to_zero((uint32_t)fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT64_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrz_w_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + fd = (uint64_t)float64_to_int32_round_to_zero(fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT32_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrz_w_s(CPULoongArchState *env, uint64_t fj) +{ + uint32_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + fd = float32_to_int32_round_to_zero((uint32_t)fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT32_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return (uint64_t)fd; +} + +uint64_t helper_ftintrne_l_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_nearest_even, &env->fp_status); + fd = float64_to_int64(fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT64_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrne_l_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_nearest_even, &env->fp_status); + fd = float32_to_int64((uint32_t)fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT64_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrne_w_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_nearest_even, &env->fp_status); + fd = (uint64_t)float64_to_int32(fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT32_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrne_w_s(CPULoongArchState *env, uint64_t fj) +{ + uint32_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_nearest_even, &env->fp_status); + fd = float32_to_int32((uint32_t)fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT32_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return (uint64_t)fd; +} + +uint64_t helper_ftint_l_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = float64_to_int64(fj, &env->fp_status); + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT64_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftint_l_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = float32_to_int64((uint32_t)fj, &env->fp_status); + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT64_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftint_w_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = (uint64_t)float32_to_int32((uint32_t)fj, &env->fp_status); + if (get_float_exception_flags(&env->fp_status) + & (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT32_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftint_w_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = (uint64_t)float64_to_int32(fj, &env->fp_status); + if (get_float_exception_flags(&env->fp_status) + & (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT32_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +void helper_set_rounding_mode(CPULoongArchState *env, uint32_t fcsr0) +{ + set_float_rounding_mode(ieee_rm[(fcsr0 >> FCSR0_RM) & 0x3], + &env->fp_status); +} |