07c0f65385
Change fLSBNEW/fLSBNEW0/fLSBNEW1 from copy to "x & 1" Remove gen_logical_not function Clean up fLSBNEWNOT to use andi-1 followed by xori-1 Test cases added to tests/tcg/hexagon/misc.c Signed-off-by: Taylor Simpson <tsimpson@quicinc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <1622589584-22571-2-git-send-email-tsimpson@quicinc.com>
1184 lines
33 KiB
C
1184 lines
33 KiB
C
/*
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* Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "qemu.h"
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#include "exec/helper-proto.h"
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#include "fpu/softfloat.h"
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#include "cpu.h"
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#include "internal.h"
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#include "macros.h"
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#include "arch.h"
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#include "hex_arch_types.h"
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#include "fma_emu.h"
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#define SF_BIAS 127
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#define SF_MANTBITS 23
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/* Exceptions processing helpers */
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static void QEMU_NORETURN do_raise_exception_err(CPUHexagonState *env,
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uint32_t exception,
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uintptr_t pc)
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{
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CPUState *cs = env_cpu(env);
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qemu_log_mask(CPU_LOG_INT, "%s: %d\n", __func__, exception);
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cs->exception_index = exception;
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cpu_loop_exit_restore(cs, pc);
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}
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void QEMU_NORETURN HELPER(raise_exception)(CPUHexagonState *env, uint32_t excp)
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{
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do_raise_exception_err(env, excp, 0);
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}
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static void log_reg_write(CPUHexagonState *env, int rnum,
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target_ulong val, uint32_t slot)
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{
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HEX_DEBUG_LOG("log_reg_write[%d] = " TARGET_FMT_ld " (0x" TARGET_FMT_lx ")",
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rnum, val, val);
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if (val == env->gpr[rnum]) {
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HEX_DEBUG_LOG(" NO CHANGE");
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}
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HEX_DEBUG_LOG("\n");
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env->new_value[rnum] = val;
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if (HEX_DEBUG) {
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/* Do this so HELPER(debug_commit_end) will know */
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env->reg_written[rnum] = 1;
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}
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}
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static void log_pred_write(CPUHexagonState *env, int pnum, target_ulong val)
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{
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HEX_DEBUG_LOG("log_pred_write[%d] = " TARGET_FMT_ld
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" (0x" TARGET_FMT_lx ")\n",
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pnum, val, val);
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/* Multiple writes to the same preg are and'ed together */
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if (env->pred_written & (1 << pnum)) {
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env->new_pred_value[pnum] &= val & 0xff;
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} else {
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env->new_pred_value[pnum] = val & 0xff;
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env->pred_written |= 1 << pnum;
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}
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}
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static void log_store32(CPUHexagonState *env, target_ulong addr,
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target_ulong val, int width, int slot)
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{
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HEX_DEBUG_LOG("log_store%d(0x" TARGET_FMT_lx
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", %" PRId32 " [0x08%" PRIx32 "])\n",
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width, addr, val, val);
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env->mem_log_stores[slot].va = addr;
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env->mem_log_stores[slot].width = width;
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env->mem_log_stores[slot].data32 = val;
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}
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static void log_store64(CPUHexagonState *env, target_ulong addr,
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int64_t val, int width, int slot)
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{
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HEX_DEBUG_LOG("log_store%d(0x" TARGET_FMT_lx
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", %" PRId64 " [0x016%" PRIx64 "])\n",
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width, addr, val, val);
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env->mem_log_stores[slot].va = addr;
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env->mem_log_stores[slot].width = width;
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env->mem_log_stores[slot].data64 = val;
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}
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static void write_new_pc(CPUHexagonState *env, target_ulong addr)
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{
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HEX_DEBUG_LOG("write_new_pc(0x" TARGET_FMT_lx ")\n", addr);
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/*
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* If more than one branch is taken in a packet, only the first one
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* is actually done.
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*/
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if (env->branch_taken) {
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HEX_DEBUG_LOG("INFO: multiple branches taken in same packet, "
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"ignoring the second one\n");
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} else {
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fCHECK_PCALIGN(addr);
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env->branch_taken = 1;
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env->next_PC = addr;
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}
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}
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/* Handy place to set a breakpoint */
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void HELPER(debug_start_packet)(CPUHexagonState *env)
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{
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HEX_DEBUG_LOG("Start packet: pc = 0x" TARGET_FMT_lx "\n",
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env->gpr[HEX_REG_PC]);
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for (int i = 0; i < TOTAL_PER_THREAD_REGS; i++) {
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env->reg_written[i] = 0;
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}
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}
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/* Checks for bookkeeping errors between disassembly context and runtime */
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void HELPER(debug_check_store_width)(CPUHexagonState *env, int slot, int check)
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{
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if (env->mem_log_stores[slot].width != check) {
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HEX_DEBUG_LOG("ERROR: %d != %d\n",
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env->mem_log_stores[slot].width, check);
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g_assert_not_reached();
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}
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}
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void HELPER(commit_store)(CPUHexagonState *env, int slot_num)
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{
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switch (env->mem_log_stores[slot_num].width) {
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case 1:
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put_user_u8(env->mem_log_stores[slot_num].data32,
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env->mem_log_stores[slot_num].va);
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break;
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case 2:
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put_user_u16(env->mem_log_stores[slot_num].data32,
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env->mem_log_stores[slot_num].va);
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break;
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case 4:
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put_user_u32(env->mem_log_stores[slot_num].data32,
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env->mem_log_stores[slot_num].va);
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break;
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case 8:
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put_user_u64(env->mem_log_stores[slot_num].data64,
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env->mem_log_stores[slot_num].va);
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break;
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default:
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g_assert_not_reached();
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}
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}
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static void print_store(CPUHexagonState *env, int slot)
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{
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if (!(env->slot_cancelled & (1 << slot))) {
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uint8_t width = env->mem_log_stores[slot].width;
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if (width == 1) {
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uint32_t data = env->mem_log_stores[slot].data32 & 0xff;
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HEX_DEBUG_LOG("\tmemb[0x" TARGET_FMT_lx "] = %" PRId32
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" (0x%02" PRIx32 ")\n",
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env->mem_log_stores[slot].va, data, data);
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} else if (width == 2) {
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uint32_t data = env->mem_log_stores[slot].data32 & 0xffff;
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HEX_DEBUG_LOG("\tmemh[0x" TARGET_FMT_lx "] = %" PRId32
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" (0x%04" PRIx32 ")\n",
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env->mem_log_stores[slot].va, data, data);
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} else if (width == 4) {
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uint32_t data = env->mem_log_stores[slot].data32;
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HEX_DEBUG_LOG("\tmemw[0x" TARGET_FMT_lx "] = %" PRId32
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" (0x%08" PRIx32 ")\n",
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env->mem_log_stores[slot].va, data, data);
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} else if (width == 8) {
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HEX_DEBUG_LOG("\tmemd[0x" TARGET_FMT_lx "] = %" PRId64
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" (0x%016" PRIx64 ")\n",
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env->mem_log_stores[slot].va,
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env->mem_log_stores[slot].data64,
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env->mem_log_stores[slot].data64);
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} else {
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HEX_DEBUG_LOG("\tBad store width %d\n", width);
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g_assert_not_reached();
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}
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}
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}
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/* This function is a handy place to set a breakpoint */
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void HELPER(debug_commit_end)(CPUHexagonState *env, int has_st0, int has_st1)
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{
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bool reg_printed = false;
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bool pred_printed = false;
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int i;
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HEX_DEBUG_LOG("Packet committed: pc = 0x" TARGET_FMT_lx "\n",
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env->this_PC);
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HEX_DEBUG_LOG("slot_cancelled = %d\n", env->slot_cancelled);
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for (i = 0; i < TOTAL_PER_THREAD_REGS; i++) {
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if (env->reg_written[i]) {
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if (!reg_printed) {
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HEX_DEBUG_LOG("Regs written\n");
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reg_printed = true;
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}
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HEX_DEBUG_LOG("\tr%d = " TARGET_FMT_ld " (0x" TARGET_FMT_lx ")\n",
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i, env->new_value[i], env->new_value[i]);
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}
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}
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for (i = 0; i < NUM_PREGS; i++) {
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if (env->pred_written & (1 << i)) {
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if (!pred_printed) {
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HEX_DEBUG_LOG("Predicates written\n");
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pred_printed = true;
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}
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HEX_DEBUG_LOG("\tp%d = 0x" TARGET_FMT_lx "\n",
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i, env->new_pred_value[i]);
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}
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}
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if (has_st0 || has_st1) {
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HEX_DEBUG_LOG("Stores\n");
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if (has_st0) {
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print_store(env, 0);
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}
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if (has_st1) {
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print_store(env, 1);
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}
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}
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HEX_DEBUG_LOG("Next PC = " TARGET_FMT_lx "\n", env->next_PC);
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HEX_DEBUG_LOG("Exec counters: pkt = " TARGET_FMT_lx
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", insn = " TARGET_FMT_lx
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"\n",
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env->gpr[HEX_REG_QEMU_PKT_CNT],
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env->gpr[HEX_REG_QEMU_INSN_CNT]);
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}
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int32_t HELPER(fcircadd)(int32_t RxV, int32_t offset, int32_t M, int32_t CS)
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{
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int32_t K_const = sextract32(M, 24, 4);
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int32_t length = sextract32(M, 0, 17);
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uint32_t new_ptr = RxV + offset;
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uint32_t start_addr;
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uint32_t end_addr;
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if (K_const == 0 && length >= 4) {
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start_addr = CS;
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end_addr = start_addr + length;
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} else {
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/*
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* Versions v3 and earlier used the K value to specify a power-of-2 size
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* 2^(K+2) that is greater than the buffer length
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*/
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int32_t mask = (1 << (K_const + 2)) - 1;
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start_addr = RxV & (~mask);
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end_addr = start_addr | length;
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}
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if (new_ptr >= end_addr) {
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new_ptr -= length;
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} else if (new_ptr < start_addr) {
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new_ptr += length;
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}
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return new_ptr;
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}
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uint32_t HELPER(fbrev)(uint32_t addr)
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{
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/*
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* Bit reverse the low 16 bits of the address
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*/
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return deposit32(addr, 0, 16, revbit16(addr));
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}
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static float32 build_float32(uint8_t sign, uint32_t exp, uint32_t mant)
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{
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return make_float32(
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((sign & 1) << 31) |
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((exp & 0xff) << SF_MANTBITS) |
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(mant & ((1 << SF_MANTBITS) - 1)));
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}
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/*
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* sfrecipa, sfinvsqrta have two 32-bit results
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* r0,p0=sfrecipa(r1,r2)
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* r0,p0=sfinvsqrta(r1)
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*
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* Since helpers can only return a single value, we pack the two results
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* into a 64-bit value.
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*/
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uint64_t HELPER(sfrecipa)(CPUHexagonState *env, float32 RsV, float32 RtV)
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{
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int32_t PeV = 0;
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float32 RdV;
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int idx;
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int adjust;
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int mant;
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int exp;
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arch_fpop_start(env);
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if (arch_sf_recip_common(&RsV, &RtV, &RdV, &adjust, &env->fp_status)) {
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PeV = adjust;
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idx = (RtV >> 16) & 0x7f;
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mant = (recip_lookup_table[idx] << 15) | 1;
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exp = SF_BIAS - (float32_getexp(RtV) - SF_BIAS) - 1;
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RdV = build_float32(extract32(RtV, 31, 1), exp, mant);
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}
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arch_fpop_end(env);
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return ((uint64_t)RdV << 32) | PeV;
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}
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uint64_t HELPER(sfinvsqrta)(CPUHexagonState *env, float32 RsV)
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{
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int PeV = 0;
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float32 RdV;
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int idx;
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int adjust;
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int mant;
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int exp;
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arch_fpop_start(env);
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if (arch_sf_invsqrt_common(&RsV, &RdV, &adjust, &env->fp_status)) {
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PeV = adjust;
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idx = (RsV >> 17) & 0x7f;
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mant = (invsqrt_lookup_table[idx] << 15);
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exp = SF_BIAS - ((float32_getexp(RsV) - SF_BIAS) >> 1) - 1;
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RdV = build_float32(extract32(RsV, 31, 1), exp, mant);
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}
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arch_fpop_end(env);
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return ((uint64_t)RdV << 32) | PeV;
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}
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int64_t HELPER(vacsh_val)(CPUHexagonState *env,
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int64_t RxxV, int64_t RssV, int64_t RttV)
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{
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for (int i = 0; i < 4; i++) {
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int xv = sextract64(RxxV, i * 16, 16);
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int sv = sextract64(RssV, i * 16, 16);
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int tv = sextract64(RttV, i * 16, 16);
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int max;
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xv = xv + tv;
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sv = sv - tv;
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max = xv > sv ? xv : sv;
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/* Note that fSATH can set the OVF bit in usr */
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RxxV = deposit64(RxxV, i * 16, 16, fSATH(max));
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}
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return RxxV;
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}
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int32_t HELPER(vacsh_pred)(CPUHexagonState *env,
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int64_t RxxV, int64_t RssV, int64_t RttV)
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{
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int32_t PeV = 0;
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for (int i = 0; i < 4; i++) {
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int xv = sextract64(RxxV, i * 16, 16);
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int sv = sextract64(RssV, i * 16, 16);
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int tv = sextract64(RttV, i * 16, 16);
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xv = xv + tv;
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sv = sv - tv;
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PeV = deposit32(PeV, i * 2, 1, (xv > sv));
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PeV = deposit32(PeV, i * 2 + 1, 1, (xv > sv));
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}
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return PeV;
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}
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/*
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* mem_noshuf
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* Section 5.5 of the Hexagon V67 Programmer's Reference Manual
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*
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* If the load is in slot 0 and there is a store in slot1 (that
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* wasn't cancelled), we have to do the store first.
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*/
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static void check_noshuf(CPUHexagonState *env, uint32_t slot)
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{
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if (slot == 0 && env->pkt_has_store_s1 &&
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((env->slot_cancelled & (1 << 1)) == 0)) {
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HELPER(commit_store)(env, 1);
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}
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}
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static uint8_t mem_load1(CPUHexagonState *env, uint32_t slot,
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target_ulong vaddr)
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{
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uint8_t retval;
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check_noshuf(env, slot);
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get_user_u8(retval, vaddr);
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return retval;
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}
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static uint16_t mem_load2(CPUHexagonState *env, uint32_t slot,
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target_ulong vaddr)
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{
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uint16_t retval;
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check_noshuf(env, slot);
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get_user_u16(retval, vaddr);
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return retval;
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}
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static uint32_t mem_load4(CPUHexagonState *env, uint32_t slot,
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target_ulong vaddr)
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{
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uint32_t retval;
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check_noshuf(env, slot);
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get_user_u32(retval, vaddr);
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return retval;
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}
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static uint64_t mem_load8(CPUHexagonState *env, uint32_t slot,
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target_ulong vaddr)
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{
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uint64_t retval;
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check_noshuf(env, slot);
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get_user_u64(retval, vaddr);
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return retval;
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}
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/* Floating point */
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float64 HELPER(conv_sf2df)(CPUHexagonState *env, float32 RsV)
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{
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float64 out_f64;
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arch_fpop_start(env);
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out_f64 = float32_to_float64(RsV, &env->fp_status);
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arch_fpop_end(env);
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return out_f64;
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}
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float32 HELPER(conv_df2sf)(CPUHexagonState *env, float64 RssV)
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{
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float32 out_f32;
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arch_fpop_start(env);
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out_f32 = float64_to_float32(RssV, &env->fp_status);
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arch_fpop_end(env);
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return out_f32;
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}
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float32 HELPER(conv_uw2sf)(CPUHexagonState *env, int32_t RsV)
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{
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float32 RdV;
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arch_fpop_start(env);
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RdV = uint32_to_float32(RsV, &env->fp_status);
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arch_fpop_end(env);
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return RdV;
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}
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float64 HELPER(conv_uw2df)(CPUHexagonState *env, int32_t RsV)
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{
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float64 RddV;
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arch_fpop_start(env);
|
|
RddV = uint32_to_float64(RsV, &env->fp_status);
|
|
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);
|
|
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);
|
|
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);
|
|
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);
|
|
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);
|
|
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);
|
|
arch_fpop_end(env);
|
|
return RddV;
|
|
}
|
|
|
|
uint32_t HELPER(conv_sf2uw)(CPUHexagonState *env, float32 RsV)
|
|
{
|
|
uint32_t RdV;
|
|
arch_fpop_start(env);
|
|
/* Hexagon checks the sign before rounding */
|
|
if (float32_is_neg(RsV) && !float32_is_any_nan(RsV)) {
|
|
float_raise(float_flag_invalid, &env->fp_status);
|
|
RdV = 0;
|
|
} else {
|
|
RdV = float32_to_uint32(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);
|
|
/* Hexagon returns -1 for NaN */
|
|
if (float32_is_any_nan(RsV)) {
|
|
float_raise(float_flag_invalid, &env->fp_status);
|
|
RdV = -1;
|
|
} else {
|
|
RdV = float32_to_int32(RsV, &env->fp_status);
|
|
}
|
|
arch_fpop_end(env);
|
|
return RdV;
|
|
}
|
|
|
|
uint64_t HELPER(conv_sf2ud)(CPUHexagonState *env, float32 RsV)
|
|
{
|
|
uint64_t RddV;
|
|
arch_fpop_start(env);
|
|
/* Hexagon checks the sign before rounding */
|
|
if (float32_is_neg(RsV) && !float32_is_any_nan(RsV)) {
|
|
float_raise(float_flag_invalid, &env->fp_status);
|
|
RddV = 0;
|
|
} else {
|
|
RddV = float32_to_uint64(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);
|
|
/* Hexagon returns -1 for NaN */
|
|
if (float32_is_any_nan(RsV)) {
|
|
float_raise(float_flag_invalid, &env->fp_status);
|
|
RddV = -1;
|
|
} else {
|
|
RddV = float32_to_int64(RsV, &env->fp_status);
|
|
}
|
|
arch_fpop_end(env);
|
|
return RddV;
|
|
}
|
|
|
|
uint32_t HELPER(conv_df2uw)(CPUHexagonState *env, float64 RssV)
|
|
{
|
|
uint32_t RdV;
|
|
arch_fpop_start(env);
|
|
/* Hexagon checks the sign before rounding */
|
|
if (float64_is_neg(RssV) && !float64_is_any_nan(RssV)) {
|
|
float_raise(float_flag_invalid, &env->fp_status);
|
|
RdV = 0;
|
|
} else {
|
|
RdV = float64_to_uint32(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);
|
|
/* Hexagon returns -1 for NaN */
|
|
if (float64_is_any_nan(RssV)) {
|
|
float_raise(float_flag_invalid, &env->fp_status);
|
|
RdV = -1;
|
|
} else {
|
|
RdV = float64_to_int32(RssV, &env->fp_status);
|
|
}
|
|
arch_fpop_end(env);
|
|
return RdV;
|
|
}
|
|
|
|
uint64_t HELPER(conv_df2ud)(CPUHexagonState *env, float64 RssV)
|
|
{
|
|
uint64_t RddV;
|
|
arch_fpop_start(env);
|
|
/* Hexagon checks the sign before rounding */
|
|
if (float64_is_neg(RssV) && !float64_is_any_nan(RssV)) {
|
|
float_raise(float_flag_invalid, &env->fp_status);
|
|
RddV = 0;
|
|
} else {
|
|
RddV = float64_to_uint64(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);
|
|
/* Hexagon returns -1 for NaN */
|
|
if (float64_is_any_nan(RssV)) {
|
|
float_raise(float_flag_invalid, &env->fp_status);
|
|
RddV = -1;
|
|
} else {
|
|
RddV = float64_to_int64(RssV, &env->fp_status);
|
|
}
|
|
arch_fpop_end(env);
|
|
return RddV;
|
|
}
|
|
|
|
uint32_t HELPER(conv_sf2uw_chop)(CPUHexagonState *env, float32 RsV)
|
|
{
|
|
uint32_t RdV;
|
|
arch_fpop_start(env);
|
|
/* Hexagon checks the sign before rounding */
|
|
if (float32_is_neg(RsV) && !float32_is_any_nan(RsV)) {
|
|
float_raise(float_flag_invalid, &env->fp_status);
|
|
RdV = 0;
|
|
} else {
|
|
RdV = float32_to_uint32_round_to_zero(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);
|
|
/* Hexagon returns -1 for NaN */
|
|
if (float32_is_any_nan(RsV)) {
|
|
float_raise(float_flag_invalid, &env->fp_status);
|
|
RdV = -1;
|
|
} else {
|
|
RdV = float32_to_int32_round_to_zero(RsV, &env->fp_status);
|
|
}
|
|
arch_fpop_end(env);
|
|
return RdV;
|
|
}
|
|
|
|
uint64_t HELPER(conv_sf2ud_chop)(CPUHexagonState *env, float32 RsV)
|
|
{
|
|
uint64_t RddV;
|
|
arch_fpop_start(env);
|
|
/* Hexagon checks the sign before rounding */
|
|
if (float32_is_neg(RsV) && !float32_is_any_nan(RsV)) {
|
|
float_raise(float_flag_invalid, &env->fp_status);
|
|
RddV = 0;
|
|
} else {
|
|
RddV = float32_to_uint64_round_to_zero(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);
|
|
/* Hexagon returns -1 for NaN */
|
|
if (float32_is_any_nan(RsV)) {
|
|
float_raise(float_flag_invalid, &env->fp_status);
|
|
RddV = -1;
|
|
} else {
|
|
RddV = float32_to_int64_round_to_zero(RsV, &env->fp_status);
|
|
}
|
|
arch_fpop_end(env);
|
|
return RddV;
|
|
}
|
|
|
|
uint32_t HELPER(conv_df2uw_chop)(CPUHexagonState *env, float64 RssV)
|
|
{
|
|
uint32_t RdV;
|
|
arch_fpop_start(env);
|
|
/* Hexagon checks the sign before rounding */
|
|
if (float64_is_neg(RssV) && !float32_is_any_nan(RssV)) {
|
|
float_raise(float_flag_invalid, &env->fp_status);
|
|
RdV = 0;
|
|
} else {
|
|
RdV = float64_to_uint32_round_to_zero(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);
|
|
/* Hexagon returns -1 for NaN */
|
|
if (float64_is_any_nan(RssV)) {
|
|
float_raise(float_flag_invalid, &env->fp_status);
|
|
RdV = -1;
|
|
} else {
|
|
RdV = float64_to_int32_round_to_zero(RssV, &env->fp_status);
|
|
}
|
|
arch_fpop_end(env);
|
|
return RdV;
|
|
}
|
|
|
|
uint64_t HELPER(conv_df2ud_chop)(CPUHexagonState *env, float64 RssV)
|
|
{
|
|
uint64_t RddV;
|
|
arch_fpop_start(env);
|
|
/* Hexagon checks the sign before rounding */
|
|
if (float64_is_neg(RssV) && !float64_is_any_nan(RssV)) {
|
|
float_raise(float_flag_invalid, &env->fp_status);
|
|
RddV = 0;
|
|
} else {
|
|
RddV = float64_to_uint64_round_to_zero(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);
|
|
/* Hexagon returns -1 for NaN */
|
|
if (float64_is_any_nan(RssV)) {
|
|
float_raise(float_flag_invalid, &env->fp_status);
|
|
RddV = -1;
|
|
} else {
|
|
RddV = float64_to_int64_round_to_zero(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);
|
|
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);
|
|
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);
|
|
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);
|
|
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);
|
|
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);
|
|
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);
|
|
}
|
|
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);
|
|
}
|
|
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);
|
|
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);
|
|
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);
|
|
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);
|
|
arch_fpop_end(env);
|
|
return RxV;
|
|
}
|
|
|
|
static 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)
|
|
{
|
|
bool infinp;
|
|
bool 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);
|
|
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)
|
|
{
|
|
bool infinp;
|
|
bool 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);
|
|
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);
|
|
} else if (float64_is_denormal(RttV) &&
|
|
(float64_getexp(RssV) >= 512) &&
|
|
float64_is_normal(RssV)) {
|
|
RddV = float64_mul(RssV, make_float64(0x3cb0000000000000),
|
|
&env->fp_status);
|
|
} 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);
|
|
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"
|