diff options
Diffstat (limited to 'target/hexagon/conv_emu.c')
| -rw-r--r-- | target/hexagon/conv_emu.c | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/target/hexagon/conv_emu.c b/target/hexagon/conv_emu.c deleted file mode 100644 index 3985b1032a..0000000000 --- a/target/hexagon/conv_emu.c +++ /dev/null @@ -1,177 +0,0 @@ -/* - * Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -#include "qemu/osdep.h" -#include "qemu/host-utils.h" -#include "fpu/softfloat.h" -#include "macros.h" -#include "conv_emu.h" - -#define LL_MAX_POS 0x7fffffffffffffffULL -#define MAX_POS 0x7fffffffU - -static uint64_t conv_f64_to_8u_n(float64 in, int will_negate, - float_status *fp_status) -{ - uint8_t sign = float64_is_neg(in); - if (float64_is_infinity(in)) { - float_raise(float_flag_invalid, fp_status); - if (float64_is_neg(in)) { - return 0ULL; - } else { - return ~0ULL; - } - } - if (float64_is_any_nan(in)) { - float_raise(float_flag_invalid, fp_status); - return ~0ULL; - } - if (float64_is_zero(in)) { - return 0; - } - if (sign) { - float_raise(float_flag_invalid, fp_status); - return 0; - } - if (float64_lt(in, float64_half, fp_status)) { - /* Near zero, captures large fracshifts, denorms, etc */ - float_raise(float_flag_inexact, fp_status); - switch (get_float_rounding_mode(fp_status)) { - case float_round_down: - if (will_negate) { - return 1; - } else { - return 0; - } - case float_round_up: - if (!will_negate) { - return 1; - } else { - return 0; - } - default: - return 0; /* nearest or towards zero */ - } - } - return float64_to_uint64(in, fp_status); -} - -static void clr_float_exception_flags(uint8_t flag, float_status *fp_status) -{ - uint8_t flags = fp_status->float_exception_flags; - flags &= ~flag; - set_float_exception_flags(flags, fp_status); -} - -static uint32_t conv_df_to_4u_n(float64 fp64, int will_negate, - float_status *fp_status) -{ - uint64_t tmp; - tmp = conv_f64_to_8u_n(fp64, will_negate, fp_status); - if (tmp > 0x00000000ffffffffULL) { - clr_float_exception_flags(float_flag_inexact, fp_status); - float_raise(float_flag_invalid, fp_status); - return ~0U; - } - return (uint32_t)tmp; -} - -uint64_t conv_df_to_8u(float64 in, float_status *fp_status) -{ - return conv_f64_to_8u_n(in, 0, fp_status); -} - -uint32_t conv_df_to_4u(float64 in, float_status *fp_status) -{ - return conv_df_to_4u_n(in, 0, fp_status); -} - -int64_t conv_df_to_8s(float64 in, float_status *fp_status) -{ - uint8_t sign = float64_is_neg(in); - uint64_t tmp; - if (float64_is_any_nan(in)) { - float_raise(float_flag_invalid, fp_status); - return -1; - } - if (sign) { - float64 minus_fp64 = float64_abs(in); - tmp = conv_f64_to_8u_n(minus_fp64, 1, fp_status); - } else { - tmp = conv_f64_to_8u_n(in, 0, fp_status); - } - if (tmp > (LL_MAX_POS + sign)) { - clr_float_exception_flags(float_flag_inexact, fp_status); - float_raise(float_flag_invalid, fp_status); - tmp = (LL_MAX_POS + sign); - } - if (sign) { - return -tmp; - } else { - return tmp; - } -} - -int32_t conv_df_to_4s(float64 in, float_status *fp_status) -{ - uint8_t sign = float64_is_neg(in); - uint64_t tmp; - if (float64_is_any_nan(in)) { - float_raise(float_flag_invalid, fp_status); - return -1; - } - if (sign) { - float64 minus_fp64 = float64_abs(in); - tmp = conv_f64_to_8u_n(minus_fp64, 1, fp_status); - } else { - tmp = conv_f64_to_8u_n(in, 0, fp_status); - } - if (tmp > (MAX_POS + sign)) { - clr_float_exception_flags(float_flag_inexact, fp_status); - float_raise(float_flag_invalid, fp_status); - tmp = (MAX_POS + sign); - } - if (sign) { - return -tmp; - } else { - return tmp; - } -} - -uint64_t conv_sf_to_8u(float32 in, float_status *fp_status) -{ - float64 fp64 = float32_to_float64(in, fp_status); - return conv_df_to_8u(fp64, fp_status); -} - -uint32_t conv_sf_to_4u(float32 in, float_status *fp_status) -{ - float64 fp64 = float32_to_float64(in, fp_status); - return conv_df_to_4u(fp64, fp_status); -} - -int64_t conv_sf_to_8s(float32 in, float_status *fp_status) -{ - float64 fp64 = float32_to_float64(in, fp_status); - return conv_df_to_8s(fp64, fp_status); -} - -int32_t conv_sf_to_4s(float32 in, float_status *fp_status) -{ - float64 fp64 = float32_to_float64(in, fp_status); - return conv_df_to_4s(fp64, fp_status); -} |