diff options
Diffstat (limited to 'target/hexagon/op_helper.c')
| -rw-r--r-- | target/hexagon/op_helper.c | 1064 |
1 files changed, 1064 insertions, 0 deletions
diff --git a/target/hexagon/op_helper.c b/target/hexagon/op_helper.c new file mode 100644 index 0000000000..2c6d718579 --- /dev/null +++ b/target/hexagon/op_helper.c @@ -0,0 +1,1064 @@ +/* + * 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.h" +#include "exec/helper-proto.h" +#include "fpu/softfloat.h" +#include "cpu.h" +#include "internal.h" +#include "macros.h" +#include "arch.h" +#include "hex_arch_types.h" +#include "fma_emu.h" +#include "conv_emu.h" + +#define SF_BIAS 127 +#define SF_MANTBITS 23 + +/* Exceptions processing helpers */ +static void QEMU_NORETURN do_raise_exception_err(CPUHexagonState *env, + uint32_t exception, + uintptr_t pc) +{ + CPUState *cs = CPU(hexagon_env_get_cpu(env)); + qemu_log_mask(CPU_LOG_INT, "%s: %d\n", __func__, exception); + cs->exception_index = exception; + cpu_loop_exit_restore(cs, pc); +} + +void QEMU_NORETURN HELPER(raise_exception)(CPUHexagonState *env, uint32_t excp) +{ + do_raise_exception_err(env, excp, 0); +} + +static inline void log_reg_write(CPUHexagonState *env, int rnum, + target_ulong val, uint32_t slot) +{ + HEX_DEBUG_LOG("log_reg_write[%d] = " TARGET_FMT_ld " (0x" TARGET_FMT_lx ")", + rnum, val, val); + if (val == env->gpr[rnum]) { + HEX_DEBUG_LOG(" NO CHANGE"); + } + HEX_DEBUG_LOG("\n"); + + env->new_value[rnum] = val; +#if HEX_DEBUG + /* Do this so HELPER(debug_commit_end) will know */ + env->reg_written[rnum] = 1; +#endif +} + +static inline void log_pred_write(CPUHexagonState *env, int pnum, + target_ulong val) +{ + HEX_DEBUG_LOG("log_pred_write[%d] = " TARGET_FMT_ld + " (0x" TARGET_FMT_lx ")\n", + pnum, val, val); + + /* Multiple writes to the same preg are and'ed together */ + if (env->pred_written & (1 << pnum)) { + env->new_pred_value[pnum] &= val & 0xff; + } else { + env->new_pred_value[pnum] = val & 0xff; + env->pred_written |= 1 << pnum; + } +} + +static inline void log_store32(CPUHexagonState *env, target_ulong addr, + target_ulong val, int width, int slot) +{ + HEX_DEBUG_LOG("log_store%d(0x" TARGET_FMT_lx + ", %" PRId32 " [0x08%" PRIx32 "])\n", + width, addr, val, val); + env->mem_log_stores[slot].va = addr; + env->mem_log_stores[slot].width = width; + env->mem_log_stores[slot].data32 = val; +} + +static inline void log_store64(CPUHexagonState *env, target_ulong addr, + int64_t val, int width, int slot) +{ + HEX_DEBUG_LOG("log_store%d(0x" TARGET_FMT_lx + ", %" PRId64 " [0x016%" PRIx64 "])\n", + width, addr, val, val); + env->mem_log_stores[slot].va = addr; + env->mem_log_stores[slot].width = width; + env->mem_log_stores[slot].data64 = val; +} + +static inline void write_new_pc(CPUHexagonState *env, target_ulong addr) +{ + HEX_DEBUG_LOG("write_new_pc(0x" TARGET_FMT_lx ")\n", addr); + + /* + * If more than one branch is taken in a packet, only the first one + * is actually done. + */ + if (env->branch_taken) { + HEX_DEBUG_LOG("INFO: multiple branches taken in same packet, " + "ignoring the second one\n"); + } else { + fCHECK_PCALIGN(addr); + env->branch_taken = 1; + env->next_PC = addr; + } +} + +#if HEX_DEBUG +/* Handy place to set a breakpoint */ +void HELPER(debug_start_packet)(CPUHexagonState *env) +{ + HEX_DEBUG_LOG("Start packet: pc = 0x" TARGET_FMT_lx "\n", + env->gpr[HEX_REG_PC]); + + for (int i = 0; i < TOTAL_PER_THREAD_REGS; i++) { + env->reg_written[i] = 0; + } +} +#endif + +static inline int32_t new_pred_value(CPUHexagonState *env, int pnum) +{ + return env->new_pred_value[pnum]; +} + +#if HEX_DEBUG +/* Checks for bookkeeping errors between disassembly context and runtime */ +void HELPER(debug_check_store_width)(CPUHexagonState *env, int slot, int check) +{ + if (env->mem_log_stores[slot].width != check) { + HEX_DEBUG_LOG("ERROR: %d != %d\n", + env->mem_log_stores[slot].width, check); + g_assert_not_reached(); + } +} +#endif + +void HELPER(commit_store)(CPUHexagonState *env, int slot_num) +{ + switch (env->mem_log_stores[slot_num].width) { + case 1: + put_user_u8(env->mem_log_stores[slot_num].data32, + env->mem_log_stores[slot_num].va); + break; + case 2: + put_user_u16(env->mem_log_stores[slot_num].data32, + env->mem_log_stores[slot_num].va); + break; + case 4: + put_user_u32(env->mem_log_stores[slot_num].data32, + env->mem_log_stores[slot_num].va); + break; + case 8: + put_user_u64(env->mem_log_stores[slot_num].data64, + env->mem_log_stores[slot_num].va); + break; + default: + g_assert_not_reached(); + } +} + +#if HEX_DEBUG +static void print_store(CPUHexagonState *env, int slot) +{ + if (!(env->slot_cancelled & (1 << slot))) { + uint8_t width = env->mem_log_stores[slot].width; + if (width == 1) { + uint32_t data = env->mem_log_stores[slot].data32 & 0xff; + HEX_DEBUG_LOG("\tmemb[0x" TARGET_FMT_lx "] = %" PRId32 + " (0x%02" PRIx32 ")\n", + env->mem_log_stores[slot].va, data, data); + } else if (width == 2) { + uint32_t data = env->mem_log_stores[slot].data32 & 0xffff; + HEX_DEBUG_LOG("\tmemh[0x" TARGET_FMT_lx "] = %" PRId32 + " (0x%04" PRIx32 ")\n", + env->mem_log_stores[slot].va, data, data); + } else if (width == 4) { + uint32_t data = env->mem_log_stores[slot].data32; + HEX_DEBUG_LOG("\tmemw[0x" TARGET_FMT_lx "] = %" PRId32 + " (0x%08" PRIx32 ")\n", + env->mem_log_stores[slot].va, data, data); + } else if (width == 8) { + HEX_DEBUG_LOG("\tmemd[0x" TARGET_FMT_lx "] = %" PRId64 + " (0x%016" PRIx64 ")\n", + env->mem_log_stores[slot].va, + env->mem_log_stores[slot].data64, + env->mem_log_stores[slot].data64); + } else { + HEX_DEBUG_LOG("\tBad store width %d\n", width); + g_assert_not_reached(); + } + } +} + +/* This function is a handy place to set a breakpoint */ +void HELPER(debug_commit_end)(CPUHexagonState *env, int has_st0, int has_st1) +{ + bool reg_printed = false; + bool pred_printed = false; + int i; + + HEX_DEBUG_LOG("Packet committed: pc = 0x" TARGET_FMT_lx "\n", + env->this_PC); + HEX_DEBUG_LOG("slot_cancelled = %d\n", env->slot_cancelled); + + for (i = 0; i < TOTAL_PER_THREAD_REGS; i++) { + if (env->reg_written[i]) { + if (!reg_printed) { + HEX_DEBUG_LOG("Regs written\n"); + reg_printed = true; + } + HEX_DEBUG_LOG("\tr%d = " TARGET_FMT_ld " (0x" TARGET_FMT_lx ")\n", + i, env->new_value[i], env->new_value[i]); + } + } + + for (i = 0; i < NUM_PREGS; i++) { + if (env->pred_written & (1 << i)) { + if (!pred_printed) { + HEX_DEBUG_LOG("Predicates written\n"); + pred_printed = true; + } + HEX_DEBUG_LOG("\tp%d = 0x" TARGET_FMT_lx "\n", + i, env->new_pred_value[i]); + } + } + + if (has_st0 || has_st1) { + HEX_DEBUG_LOG("Stores\n"); + if (has_st0) { + print_store(env, 0); + } + if (has_st1) { + print_store(env, 1); + } + } + + HEX_DEBUG_LOG("Next PC = " TARGET_FMT_lx "\n", env->next_PC); + HEX_DEBUG_LOG("Exec counters: pkt = " TARGET_FMT_lx + ", insn = " TARGET_FMT_lx + "\n", + env->gpr[HEX_REG_QEMU_PKT_CNT], + env->gpr[HEX_REG_QEMU_INSN_CNT]); + +} +#endif + +static int32_t fcircadd_v4(int32_t RxV, int32_t offset, int32_t M, int32_t CS) +{ + int32_t length = M & 0x0001ffff; + uint32_t new_ptr = RxV + offset; + uint32_t start_addr = CS; + uint32_t end_addr = start_addr + length; + + if (new_ptr >= end_addr) { + new_ptr -= length; + } else if (new_ptr < start_addr) { + new_ptr += length; + } + + return new_ptr; +} + +int32_t HELPER(fcircadd)(int32_t RxV, int32_t offset, int32_t M, int32_t CS) +{ + int32_t K_const = (M >> 24) & 0xf; + int32_t length = M & 0x1ffff; + int32_t mask = (1 << (K_const + 2)) - 1; + uint32_t new_ptr = RxV + offset; + uint32_t start_addr = RxV & (~mask); + uint32_t end_addr = start_addr | length; + + if (K_const == 0 && length >= 4) { + return fcircadd_v4(RxV, offset, M, CS); + } + + if (new_ptr >= end_addr) { + new_ptr -= length; + } else if (new_ptr < start_addr) { + new_ptr += length; + } + + return new_ptr; +} + +/* + * Hexagon FP operations return ~0 insteat of NaN + * The hex_check_sfnan/hex_check_dfnan functions perform this check + */ +static float32 hex_check_sfnan(float32 x) +{ + if (float32_is_any_nan(x)) { + return make_float32(0xFFFFFFFFU); + } + return x; +} + +static float64 hex_check_dfnan(float64 x) +{ + if (float64_is_any_nan(x)) { + return make_float64(0xFFFFFFFFFFFFFFFFULL); + } + return x; +} + +/* + * mem_noshuf + * Section 5.5 of the Hexagon V67 Programmer's Reference Manual + * + * If the load is in slot 0 and there is a store in slot1 (that + * wasn't cancelled), we have to do the store first. + */ +static void check_noshuf(CPUHexagonState *env, uint32_t slot) +{ + if (slot == 0 && env->pkt_has_store_s1 && + ((env->slot_cancelled & (1 << 1)) == 0)) { + HELPER(commit_store)(env, 1); + } +} + +static inline uint8_t mem_load1(CPUHexagonState *env, uint32_t slot, + target_ulong vaddr) +{ + uint8_t retval; + check_noshuf(env, slot); + get_user_u8(retval, vaddr); + return retval; +} + +static inline uint16_t mem_load2(CPUHexagonState *env, uint32_t slot, + target_ulong vaddr) +{ + uint16_t retval; + check_noshuf(env, slot); + get_user_u16(retval, vaddr); + return retval; +} + +static inline uint32_t mem_load4(CPUHexagonState *env, uint32_t slot, + target_ulong vaddr) +{ + uint32_t retval; + check_noshuf(env, slot); + get_user_u32(retval, vaddr); + return retval; +} + +static inline uint64_t mem_load8(CPUHexagonState *env, uint32_t slot, + target_ulong vaddr) +{ + uint64_t retval; + check_noshuf(env, slot); + get_user_u64(retval, vaddr); + return retval; +} + +/* Floating point */ +float64 HELPER(conv_sf2df)(CPUHexagonState *env, float32 RsV) +{ + float64 out_f64; + arch_fpop_start(env); + out_f64 = float32_to_float64(RsV, &env->fp_status); + out_f64 = hex_check_dfnan(out_f64); + arch_fpop_end(env); + return out_f64; +} + +float32 HELPER(conv_df2sf)(CPUHexagonState *env, float64 RssV) +{ + float32 out_f32; + arch_fpop_start(env); + out_f32 = float64_to_float32(RssV, &env->fp_status); + out_f32 = hex_check_sfnan(out_f32); + arch_fpop_end(env); + return out_f32; +} + +float32 HELPER(conv_uw2sf)(CPUHexagonState *env, int32_t RsV) +{ + float32 RdV; + arch_fpop_start(env); + RdV = uint32_to_float32(RsV, &env->fp_status); + RdV = hex_check_sfnan(RdV); + arch_fpop_end(env); + return RdV; +} + +float64 HELPER(conv_uw2df)(CPUHexagonState *env, int32_t RsV) +{ + float64 RddV; + arch_fpop_start(env); + RddV = uint32_to_float64(RsV, &env->fp_status); + RddV = hex_check_dfnan(RddV); + arch_fpop_end(env); + return RddV; +} + +float32 HELPER(conv_w2sf)(CPUHexagonState *env, int32_t RsV) +{ + float32 RdV; + arch_fpop_start(env); + RdV = int32_to_float32(RsV, &env->fp_status); + RdV = hex_check_sfnan(RdV); + arch_fpop_end(env); + return RdV; +} + +float64 HELPER(conv_w2df)(CPUHexagonState *env, int32_t RsV) +{ + float64 RddV; + arch_fpop_start(env); + RddV = int32_to_float64(RsV, &env->fp_status); + RddV = hex_check_dfnan(RddV); + arch_fpop_end(env); + return RddV; +} + +float32 HELPER(conv_ud2sf)(CPUHexagonState *env, int64_t RssV) +{ + float32 RdV; + arch_fpop_start(env); + RdV = uint64_to_float32(RssV, &env->fp_status); + RdV = hex_check_sfnan(RdV); + arch_fpop_end(env); + return RdV; +} + +float64 HELPER(conv_ud2df)(CPUHexagonState *env, int64_t RssV) +{ + float64 RddV; + arch_fpop_start(env); + RddV = uint64_to_float64(RssV, &env->fp_status); + RddV = hex_check_dfnan(RddV); + arch_fpop_end(env); + return RddV; +} + +float32 HELPER(conv_d2sf)(CPUHexagonState *env, int64_t RssV) +{ + float32 RdV; + arch_fpop_start(env); + RdV = int64_to_float32(RssV, &env->fp_status); + RdV = hex_check_sfnan(RdV); + arch_fpop_end(env); + return RdV; +} + +float64 HELPER(conv_d2df)(CPUHexagonState *env, int64_t RssV) +{ + float64 RddV; + arch_fpop_start(env); + RddV = int64_to_float64(RssV, &env->fp_status); + RddV = hex_check_dfnan(RddV); + arch_fpop_end(env); + return RddV; +} + +int32_t HELPER(conv_sf2uw)(CPUHexagonState *env, float32 RsV) +{ + int32_t RdV; + arch_fpop_start(env); + RdV = conv_sf_to_4u(RsV, &env->fp_status); + arch_fpop_end(env); + return RdV; +} + +int32_t HELPER(conv_sf2w)(CPUHexagonState *env, float32 RsV) +{ + int32_t RdV; + arch_fpop_start(env); + RdV = conv_sf_to_4s(RsV, &env->fp_status); + arch_fpop_end(env); + return RdV; +} + +int64_t HELPER(conv_sf2ud)(CPUHexagonState *env, float32 RsV) +{ + int64_t RddV; + arch_fpop_start(env); + RddV = conv_sf_to_8u(RsV, &env->fp_status); + arch_fpop_end(env); + return RddV; +} + +int64_t HELPER(conv_sf2d)(CPUHexagonState *env, float32 RsV) +{ + int64_t RddV; + arch_fpop_start(env); + RddV = conv_sf_to_8s(RsV, &env->fp_status); + arch_fpop_end(env); + return RddV; +} + +int32_t HELPER(conv_df2uw)(CPUHexagonState *env, float64 RssV) +{ + int32_t RdV; + arch_fpop_start(env); + RdV = conv_df_to_4u(RssV, &env->fp_status); + arch_fpop_end(env); + return RdV; +} + +int32_t HELPER(conv_df2w)(CPUHexagonState *env, float64 RssV) +{ + int32_t RdV; + arch_fpop_start(env); + RdV = conv_df_to_4s(RssV, &env->fp_status); + arch_fpop_end(env); + return RdV; +} + +int64_t HELPER(conv_df2ud)(CPUHexagonState *env, float64 RssV) +{ + int64_t RddV; + arch_fpop_start(env); + RddV = conv_df_to_8u(RssV, &env->fp_status); + arch_fpop_end(env); + return RddV; +} + +int64_t HELPER(conv_df2d)(CPUHexagonState *env, float64 RssV) +{ + int64_t RddV; + arch_fpop_start(env); + RddV = conv_df_to_8s(RssV, &env->fp_status); + arch_fpop_end(env); + return RddV; +} + +int32_t HELPER(conv_sf2uw_chop)(CPUHexagonState *env, float32 RsV) +{ + int32_t RdV; + arch_fpop_start(env); + set_float_rounding_mode(float_round_to_zero, &env->fp_status); + RdV = conv_sf_to_4u(RsV, &env->fp_status); + arch_fpop_end(env); + return RdV; +} + +int32_t HELPER(conv_sf2w_chop)(CPUHexagonState *env, float32 RsV) +{ + int32_t RdV; + arch_fpop_start(env); + set_float_rounding_mode(float_round_to_zero, &env->fp_status); + RdV = conv_sf_to_4s(RsV, &env->fp_status); + arch_fpop_end(env); + return RdV; +} + +int64_t HELPER(conv_sf2ud_chop)(CPUHexagonState *env, float32 RsV) +{ + int64_t RddV; + arch_fpop_start(env); + set_float_rounding_mode(float_round_to_zero, &env->fp_status); + RddV = conv_sf_to_8u(RsV, &env->fp_status); + arch_fpop_end(env); + return RddV; +} + +int64_t HELPER(conv_sf2d_chop)(CPUHexagonState *env, float32 RsV) +{ + int64_t RddV; + arch_fpop_start(env); + set_float_rounding_mode(float_round_to_zero, &env->fp_status); + RddV = conv_sf_to_8s(RsV, &env->fp_status); + arch_fpop_end(env); + return RddV; +} + +int32_t HELPER(conv_df2uw_chop)(CPUHexagonState *env, float64 RssV) +{ + int32_t RdV; + arch_fpop_start(env); + set_float_rounding_mode(float_round_to_zero, &env->fp_status); + RdV = conv_df_to_4u(RssV, &env->fp_status); + arch_fpop_end(env); + return RdV; +} + +int32_t HELPER(conv_df2w_chop)(CPUHexagonState *env, float64 RssV) +{ + int32_t RdV; + arch_fpop_start(env); + set_float_rounding_mode(float_round_to_zero, &env->fp_status); + RdV = conv_df_to_4s(RssV, &env->fp_status); + arch_fpop_end(env); + return RdV; +} + +int64_t HELPER(conv_df2ud_chop)(CPUHexagonState *env, float64 RssV) +{ + int64_t RddV; + arch_fpop_start(env); + set_float_rounding_mode(float_round_to_zero, &env->fp_status); + RddV = conv_df_to_8u(RssV, &env->fp_status); + arch_fpop_end(env); + return RddV; +} + +int64_t HELPER(conv_df2d_chop)(CPUHexagonState *env, float64 RssV) +{ + int64_t RddV; + arch_fpop_start(env); + set_float_rounding_mode(float_round_to_zero, &env->fp_status); + RddV = conv_df_to_8s(RssV, &env->fp_status); + arch_fpop_end(env); + return RddV; +} + +float32 HELPER(sfadd)(CPUHexagonState *env, float32 RsV, float32 RtV) +{ + float32 RdV; + arch_fpop_start(env); + RdV = float32_add(RsV, RtV, &env->fp_status); + RdV = hex_check_sfnan(RdV); + arch_fpop_end(env); + return RdV; +} + +float32 HELPER(sfsub)(CPUHexagonState *env, float32 RsV, float32 RtV) +{ + float32 RdV; + arch_fpop_start(env); + RdV = float32_sub(RsV, RtV, &env->fp_status); + RdV = hex_check_sfnan(RdV); + arch_fpop_end(env); + return RdV; +} + +int32_t HELPER(sfcmpeq)(CPUHexagonState *env, float32 RsV, float32 RtV) +{ + int32_t PdV; + arch_fpop_start(env); + PdV = f8BITSOF(float32_eq_quiet(RsV, RtV, &env->fp_status)); + arch_fpop_end(env); + return PdV; +} + +int32_t HELPER(sfcmpgt)(CPUHexagonState *env, float32 RsV, float32 RtV) +{ + int cmp; + int32_t PdV; + arch_fpop_start(env); + cmp = float32_compare_quiet(RsV, RtV, &env->fp_status); + PdV = f8BITSOF(cmp == float_relation_greater); + arch_fpop_end(env); + return PdV; +} + +int32_t HELPER(sfcmpge)(CPUHexagonState *env, float32 RsV, float32 RtV) +{ + int cmp; + int32_t PdV; + arch_fpop_start(env); + cmp = float32_compare_quiet(RsV, RtV, &env->fp_status); + PdV = f8BITSOF(cmp == float_relation_greater || + cmp == float_relation_equal); + arch_fpop_end(env); + return PdV; +} + +int32_t HELPER(sfcmpuo)(CPUHexagonState *env, float32 RsV, float32 RtV) +{ + int32_t PdV; + arch_fpop_start(env); + PdV = f8BITSOF(float32_is_any_nan(RsV) || + float32_is_any_nan(RtV)); + arch_fpop_end(env); + return PdV; +} + +float32 HELPER(sfmax)(CPUHexagonState *env, float32 RsV, float32 RtV) +{ + float32 RdV; + arch_fpop_start(env); + RdV = float32_maxnum(RsV, RtV, &env->fp_status); + RdV = hex_check_sfnan(RdV); + arch_fpop_end(env); + return RdV; +} + +float32 HELPER(sfmin)(CPUHexagonState *env, float32 RsV, float32 RtV) +{ + float32 RdV; + arch_fpop_start(env); + RdV = float32_minnum(RsV, RtV, &env->fp_status); + RdV = hex_check_sfnan(RdV); + arch_fpop_end(env); + return RdV; +} + +int32_t HELPER(sfclass)(CPUHexagonState *env, float32 RsV, int32_t uiV) +{ + int32_t PdV = 0; + arch_fpop_start(env); + if (fGETBIT(0, uiV) && float32_is_zero(RsV)) { + PdV = 0xff; + } + if (fGETBIT(1, uiV) && float32_is_normal(RsV)) { + PdV = 0xff; + } + if (fGETBIT(2, uiV) && float32_is_denormal(RsV)) { + PdV = 0xff; + } + if (fGETBIT(3, uiV) && float32_is_infinity(RsV)) { + PdV = 0xff; + } + if (fGETBIT(4, uiV) && float32_is_any_nan(RsV)) { + PdV = 0xff; + } + set_float_exception_flags(0, &env->fp_status); + arch_fpop_end(env); + return PdV; +} + +float32 HELPER(sffixupn)(CPUHexagonState *env, float32 RsV, float32 RtV) +{ + float32 RdV = 0; + int adjust; + arch_fpop_start(env); + arch_sf_recip_common(&RsV, &RtV, &RdV, &adjust, &env->fp_status); + RdV = RsV; + arch_fpop_end(env); + return RdV; +} + +float32 HELPER(sffixupd)(CPUHexagonState *env, float32 RsV, float32 RtV) +{ + float32 RdV = 0; + int adjust; + arch_fpop_start(env); + arch_sf_recip_common(&RsV, &RtV, &RdV, &adjust, &env->fp_status); + RdV = RtV; + arch_fpop_end(env); + return RdV; +} + +float32 HELPER(sffixupr)(CPUHexagonState *env, float32 RsV) +{ + float32 RdV = 0; + int adjust; + arch_fpop_start(env); + arch_sf_invsqrt_common(&RsV, &RdV, &adjust, &env->fp_status); + RdV = RsV; + arch_fpop_end(env); + return RdV; +} + +float64 HELPER(dfadd)(CPUHexagonState *env, float64 RssV, float64 RttV) +{ + float64 RddV; + arch_fpop_start(env); + RddV = float64_add(RssV, RttV, &env->fp_status); + RddV = hex_check_dfnan(RddV); + arch_fpop_end(env); + return RddV; +} + +float64 HELPER(dfsub)(CPUHexagonState *env, float64 RssV, float64 RttV) +{ + float64 RddV; + arch_fpop_start(env); + RddV = float64_sub(RssV, RttV, &env->fp_status); + RddV = hex_check_dfnan(RddV); + arch_fpop_end(env); + return RddV; +} + +float64 HELPER(dfmax)(CPUHexagonState *env, float64 RssV, float64 RttV) +{ + float64 RddV; + arch_fpop_start(env); + RddV = float64_maxnum(RssV, RttV, &env->fp_status); + if (float64_is_any_nan(RssV) || float64_is_any_nan(RttV)) { + float_raise(float_flag_invalid, &env->fp_status); + } + RddV = hex_check_dfnan(RddV); + arch_fpop_end(env); + return RddV; +} + +float64 HELPER(dfmin)(CPUHexagonState *env, float64 RssV, float64 RttV) +{ + float64 RddV; + arch_fpop_start(env); + RddV = float64_minnum(RssV, RttV, &env->fp_status); + if (float64_is_any_nan(RssV) || float64_is_any_nan(RttV)) { + float_raise(float_flag_invalid, &env->fp_status); + } + RddV = hex_check_dfnan(RddV); + arch_fpop_end(env); + return RddV; +} + +int32_t HELPER(dfcmpeq)(CPUHexagonState *env, float64 RssV, float64 RttV) +{ + int32_t PdV; + arch_fpop_start(env); + PdV = f8BITSOF(float64_eq_quiet(RssV, RttV, &env->fp_status)); + arch_fpop_end(env); + return PdV; +} + +int32_t HELPER(dfcmpgt)(CPUHexagonState *env, float64 RssV, float64 RttV) +{ + int cmp; + int32_t PdV; + arch_fpop_start(env); + cmp = float64_compare_quiet(RssV, RttV, &env->fp_status); + PdV = f8BITSOF(cmp == float_relation_greater); + arch_fpop_end(env); + return PdV; +} + +int32_t HELPER(dfcmpge)(CPUHexagonState *env, float64 RssV, float64 RttV) +{ + int cmp; + int32_t PdV; + arch_fpop_start(env); + cmp = float64_compare_quiet(RssV, RttV, &env->fp_status); + PdV = f8BITSOF(cmp == float_relation_greater || + cmp == float_relation_equal); + arch_fpop_end(env); + return PdV; +} + +int32_t HELPER(dfcmpuo)(CPUHexagonState *env, float64 RssV, float64 RttV) +{ + int32_t PdV; + arch_fpop_start(env); + PdV = f8BITSOF(float64_is_any_nan(RssV) || + float64_is_any_nan(RttV)); + arch_fpop_end(env); + return PdV; +} + +int32_t HELPER(dfclass)(CPUHexagonState *env, float64 RssV, int32_t uiV) +{ + int32_t PdV = 0; + arch_fpop_start(env); + if (fGETBIT(0, uiV) && float64_is_zero(RssV)) { + PdV = 0xff; + } + if (fGETBIT(1, uiV) && float64_is_normal(RssV)) { + PdV = 0xff; + } + if (fGETBIT(2, uiV) && float64_is_denormal(RssV)) { + PdV = 0xff; + } + if (fGETBIT(3, uiV) && float64_is_infinity(RssV)) { + PdV = 0xff; + } + if (fGETBIT(4, uiV) && float64_is_any_nan(RssV)) { + PdV = 0xff; + } + set_float_exception_flags(0, &env->fp_status); + arch_fpop_end(env); + return PdV; +} + +float32 HELPER(sfmpy)(CPUHexagonState *env, float32 RsV, float32 RtV) +{ + float32 RdV; + arch_fpop_start(env); + RdV = internal_mpyf(RsV, RtV, &env->fp_status); + RdV = hex_check_sfnan(RdV); + arch_fpop_end(env); + return RdV; +} + +float32 HELPER(sffma)(CPUHexagonState *env, float32 RxV, + float32 RsV, float32 RtV) +{ + arch_fpop_start(env); + RxV = internal_fmafx(RsV, RtV, RxV, 0, &env->fp_status); + RxV = hex_check_sfnan(RxV); + arch_fpop_end(env); + return RxV; +} + +static bool is_zero_prod(float32 a, float32 b) +{ + return ((float32_is_zero(a) && is_finite(b)) || + (float32_is_zero(b) && is_finite(a))); +} + +static float32 check_nan(float32 dst, float32 x, float_status *fp_status) +{ + float32 ret = dst; + if (float32_is_any_nan(x)) { + if (extract32(x, 22, 1) == 0) { + float_raise(float_flag_invalid, fp_status); + } + ret = make_float32(0xffffffff); /* nan */ + } + return ret; +} + +float32 HELPER(sffma_sc)(CPUHexagonState *env, float32 RxV, + float32 RsV, float32 RtV, float32 PuV) +{ + size4s_t tmp; + arch_fpop_start(env); + RxV = check_nan(RxV, RxV, &env->fp_status); + RxV = check_nan(RxV, RsV, &env->fp_status); + RxV = check_nan(RxV, RtV, &env->fp_status); + tmp = internal_fmafx(RsV, RtV, RxV, fSXTN(8, 64, PuV), &env->fp_status); + tmp = hex_check_sfnan(tmp); + if (!(float32_is_zero(RxV) && is_zero_prod(RsV, RtV))) { + RxV = tmp; + } + arch_fpop_end(env); + return RxV; +} + +float32 HELPER(sffms)(CPUHexagonState *env, float32 RxV, + float32 RsV, float32 RtV) +{ + float32 neg_RsV; + arch_fpop_start(env); + neg_RsV = float32_sub(float32_zero, RsV, &env->fp_status); + RxV = internal_fmafx(neg_RsV, RtV, RxV, 0, &env->fp_status); + RxV = hex_check_sfnan(RxV); + arch_fpop_end(env); + return RxV; +} + +static inline bool is_inf_prod(int32_t a, int32_t b) +{ + return (float32_is_infinity(a) && float32_is_infinity(b)) || + (float32_is_infinity(a) && is_finite(b) && !float32_is_zero(b)) || + (float32_is_infinity(b) && is_finite(a) && !float32_is_zero(a)); +} + +float32 HELPER(sffma_lib)(CPUHexagonState *env, float32 RxV, + float32 RsV, float32 RtV) +{ + int infinp; + int infminusinf; + float32 tmp; + + arch_fpop_start(env); + set_float_rounding_mode(float_round_nearest_even, &env->fp_status); + infminusinf = float32_is_infinity(RxV) && + is_inf_prod(RsV, RtV) && + (fGETBIT(31, RsV ^ RxV ^ RtV) != 0); + infinp = float32_is_infinity(RxV) || + float32_is_infinity(RtV) || + float32_is_infinity(RsV); + RxV = check_nan(RxV, RxV, &env->fp_status); + RxV = check_nan(RxV, RsV, &env->fp_status); + RxV = check_nan(RxV, RtV, &env->fp_status); + tmp = internal_fmafx(RsV, RtV, RxV, 0, &env->fp_status); + tmp = hex_check_sfnan(tmp); + if (!(float32_is_zero(RxV) && is_zero_prod(RsV, RtV))) { + RxV = tmp; + } + set_float_exception_flags(0, &env->fp_status); + if (float32_is_infinity(RxV) && !infinp) { + RxV = RxV - 1; + } + if (infminusinf) { + RxV = 0; + } + arch_fpop_end(env); + return RxV; +} + +float32 HELPER(sffms_lib)(CPUHexagonState *env, float32 RxV, + float32 RsV, float32 RtV) +{ + int infinp; + int infminusinf; + float32 tmp; + + arch_fpop_start(env); + set_float_rounding_mode(float_round_nearest_even, &env->fp_status); + infminusinf = float32_is_infinity(RxV) && + is_inf_prod(RsV, RtV) && + (fGETBIT(31, RsV ^ RxV ^ RtV) == 0); + infinp = float32_is_infinity(RxV) || + float32_is_infinity(RtV) || + float32_is_infinity(RsV); + RxV = check_nan(RxV, RxV, &env->fp_status); + RxV = check_nan(RxV, RsV, &env->fp_status); + RxV = check_nan(RxV, RtV, &env->fp_status); + float32 minus_RsV = float32_sub(float32_zero, RsV, &env->fp_status); + tmp = internal_fmafx(minus_RsV, RtV, RxV, 0, &env->fp_status); + tmp = hex_check_sfnan(tmp); + if (!(float32_is_zero(RxV) && is_zero_prod(RsV, RtV))) { + RxV = tmp; + } + set_float_exception_flags(0, &env->fp_status); + if (float32_is_infinity(RxV) && !infinp) { + RxV = RxV - 1; + } + if (infminusinf) { + RxV = 0; + } + arch_fpop_end(env); + return RxV; +} + +float64 HELPER(dfmpyfix)(CPUHexagonState *env, float64 RssV, float64 RttV) +{ + int64_t RddV; + arch_fpop_start(env); + if (float64_is_denormal(RssV) && + (float64_getexp(RttV) >= 512) && + float64_is_normal(RttV)) { + RddV = float64_mul(RssV, make_float64(0x4330000000000000), + &env->fp_status); + RddV = hex_check_dfnan(RddV); + } else if (float64_is_denormal(RttV) && + (float64_getexp(RssV) >= 512) && + float64_is_normal(RssV)) { + RddV = float64_mul(RssV, make_float64(0x3cb0000000000000), + &env->fp_status); + RddV = hex_check_dfnan(RddV); + } else { + RddV = RssV; + } + arch_fpop_end(env); + return RddV; +} + +float64 HELPER(dfmpyhh)(CPUHexagonState *env, float64 RxxV, + float64 RssV, float64 RttV) +{ + arch_fpop_start(env); + RxxV = internal_mpyhh(RssV, RttV, RxxV, &env->fp_status); + RxxV = hex_check_dfnan(RxxV); + arch_fpop_end(env); + return RxxV; +} + +static void cancel_slot(CPUHexagonState *env, uint32_t slot) +{ + HEX_DEBUG_LOG("Slot %d cancelled\n", slot); + env->slot_cancelled |= (1 << slot); +} + +/* These macros can be referenced in the generated helper functions */ +#define warn(...) /* Nothing */ +#define fatal(...) g_assert_not_reached(); + +#define BOGUS_HELPER(tag) \ + printf("ERROR: bogus helper: " #tag "\n") + +#include "helper_funcs_generated.c.inc" |