-----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEEzS913cjjpNwuT1Fz8ww4vT8vvjwFAmCPtbASHGxhdXJlbnRA dml2aWVyLmV1AAoJEPMMOL0/L748I3wP/Al7yi77BMpts1t3lGMm7EBjKgkppnpr wZYEM68bJonvvGiEKQjexn1CUfnDcq7f5SZkzcUNLI4oP57pyywb4/gshN0k/Zz8 uCDveMfnhbio2sqlXiMsH9TOhcv/4wtXAek/ghP7EOjkBvyXrAFIQ7eEPEB9cp+X xxs9DxqfWmrGB6vt7Er78zjfUETSMa+UrheVLwbRMhJcc0Bg8hT2DCn9Lw6IjfOy usWdrLTGc6qg1zdZzi8QR7jZ+bNx0h+aJLlm8M4cVitXq9v2wb3+6KdsOAeYioAE AsnClw0m8j/xtMh3g4/hB4oCxMj0jRdZ9GIGs8Didw5ZwkXTRvFM1GK1PHxqX4pF 8xMW6Qq0bSUr4II6bPOukBUMUAnPYdkh+iHXsYSZG0I3u6VZLgMK3AXmKRukAYqe kQ1lcRe3Lwsp2h+jMBBsbCWhwYdA3THFO4YO31cUaZ191A7z57905QMbqJG/H3HB 7IUBYBNbrhgysPsNBvY6Lr7yUJIocMgcfP36UHYcBPsDdZgjNCQZneJlkaRlQb8+ CtUSF8D614EguzGsWaIn3uBSm9THKKLd1rSXCyTSgrXDI285mXlKmEWZvm236ew0 OEmIz/Ach/R4268j76enYGa1aubsxnrphUfC3aePu0Wzd3QW4RxnCSq7wc4ARPw7 WTL7J00P578h =aCeG -----END PGP SIGNATURE----- Merge remote-tracking branch 'remotes/vivier2/tags/trivial-branch-for-6.1-pull-request' into staging Trivial patches pull request 20210503 # gpg: Signature made Mon 03 May 2021 09:34:56 BST # gpg: using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C # gpg: issuer "laurent@vivier.eu" # gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full] # gpg: aka "Laurent Vivier <laurent@vivier.eu>" [full] # gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full] # Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C * remotes/vivier2/tags/trivial-branch-for-6.1-pull-request: (23 commits) hw/rx/rx-gdbsim: Do not accept invalid memory size docs: More precisely describe memory-backend-*::id's user scripts: fix generation update-binfmts templates docs/system: Document the removal of "compat" property for POWER CPUs mc146818rtc: put it into the 'misc' category Do not include exec/address-spaces.h if it's not really necessary Do not include cpu.h if it's not really necessary Do not include hw/boards.h if it's not really necessary Do not include sysemu/sysemu.h if it's not really necessary hw: Do not include qemu/log.h if it is not necessary hw: Do not include hw/irq.h if it is not necessary hw: Do not include hw/sysbus.h if it is not necessary hw: Remove superfluous includes of hw/hw.h ui: Fix memory leak in qemu_xkeymap_mapping_table() hw/usb: Constify VMStateDescription hw/display/qxl: Constify VMStateDescription hw/arm: Constify VMStateDescription vmstate: Constify some VMStateDescriptions Fix typo in CFI build documentation hw/pcmcia: Do not register PCMCIA type if not required ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
478 lines
15 KiB
C
478 lines
15 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 "cpu.h"
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#include "internal.h"
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#include "tcg/tcg-op.h"
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#include "insn.h"
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#include "opcodes.h"
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#include "translate.h"
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#define QEMU_GENERATE /* Used internally by macros.h */
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#include "macros.h"
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#undef QEMU_GENERATE
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#include "gen_tcg.h"
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static inline TCGv gen_read_preg(TCGv pred, uint8_t num)
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{
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tcg_gen_mov_tl(pred, hex_pred[num]);
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return pred;
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}
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static inline void gen_log_predicated_reg_write(int rnum, TCGv val, int slot)
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{
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TCGv zero = tcg_const_tl(0);
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TCGv slot_mask = tcg_temp_new();
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tcg_gen_andi_tl(slot_mask, hex_slot_cancelled, 1 << slot);
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tcg_gen_movcond_tl(TCG_COND_EQ, hex_new_value[rnum], slot_mask, zero,
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val, hex_new_value[rnum]);
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if (HEX_DEBUG) {
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/*
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* Do this so HELPER(debug_commit_end) will know
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*
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* Note that slot_mask indicates the value is not written
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* (i.e., slot was cancelled), so we create a true/false value before
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* or'ing with hex_reg_written[rnum].
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*/
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tcg_gen_setcond_tl(TCG_COND_EQ, slot_mask, slot_mask, zero);
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tcg_gen_or_tl(hex_reg_written[rnum], hex_reg_written[rnum], slot_mask);
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}
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tcg_temp_free(zero);
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tcg_temp_free(slot_mask);
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}
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static inline void gen_log_reg_write(int rnum, TCGv val)
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{
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tcg_gen_mov_tl(hex_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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tcg_gen_movi_tl(hex_reg_written[rnum], 1);
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}
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}
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static void gen_log_predicated_reg_write_pair(int rnum, TCGv_i64 val, int slot)
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{
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TCGv val32 = tcg_temp_new();
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TCGv zero = tcg_const_tl(0);
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TCGv slot_mask = tcg_temp_new();
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tcg_gen_andi_tl(slot_mask, hex_slot_cancelled, 1 << slot);
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/* Low word */
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tcg_gen_extrl_i64_i32(val32, val);
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tcg_gen_movcond_tl(TCG_COND_EQ, hex_new_value[rnum],
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slot_mask, zero,
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val32, hex_new_value[rnum]);
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/* High word */
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tcg_gen_extrh_i64_i32(val32, val);
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tcg_gen_movcond_tl(TCG_COND_EQ, hex_new_value[rnum + 1],
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slot_mask, zero,
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val32, hex_new_value[rnum + 1]);
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if (HEX_DEBUG) {
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/*
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* Do this so HELPER(debug_commit_end) will know
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*
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* Note that slot_mask indicates the value is not written
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* (i.e., slot was cancelled), so we create a true/false value before
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* or'ing with hex_reg_written[rnum].
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*/
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tcg_gen_setcond_tl(TCG_COND_EQ, slot_mask, slot_mask, zero);
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tcg_gen_or_tl(hex_reg_written[rnum], hex_reg_written[rnum], slot_mask);
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tcg_gen_or_tl(hex_reg_written[rnum + 1], hex_reg_written[rnum + 1],
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slot_mask);
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}
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tcg_temp_free(val32);
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tcg_temp_free(zero);
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tcg_temp_free(slot_mask);
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}
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static void gen_log_reg_write_pair(int rnum, TCGv_i64 val)
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{
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/* Low word */
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tcg_gen_extrl_i64_i32(hex_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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tcg_gen_movi_tl(hex_reg_written[rnum], 1);
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}
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/* High word */
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tcg_gen_extrh_i64_i32(hex_new_value[rnum + 1], 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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tcg_gen_movi_tl(hex_reg_written[rnum + 1], 1);
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}
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}
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static inline void gen_log_pred_write(DisasContext *ctx, int pnum, TCGv val)
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{
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TCGv zero = tcg_const_tl(0);
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TCGv base_val = tcg_temp_new();
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TCGv and_val = tcg_temp_new();
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TCGv pred_written = tcg_temp_new();
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tcg_gen_andi_tl(base_val, val, 0xff);
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/*
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* Section 6.1.3 of the Hexagon V67 Programmer's Reference Manual
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*
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* Multiple writes to the same preg are and'ed together
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* If this is the first predicate write in the packet, do a
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* straight assignment. Otherwise, do an and.
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*/
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if (!test_bit(pnum, ctx->pregs_written)) {
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tcg_gen_mov_tl(hex_new_pred_value[pnum], base_val);
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} else {
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tcg_gen_and_tl(hex_new_pred_value[pnum],
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hex_new_pred_value[pnum], base_val);
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}
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tcg_gen_ori_tl(hex_pred_written, hex_pred_written, 1 << pnum);
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tcg_temp_free(zero);
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tcg_temp_free(base_val);
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tcg_temp_free(and_val);
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tcg_temp_free(pred_written);
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}
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static inline void gen_read_p3_0(TCGv control_reg)
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{
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tcg_gen_movi_tl(control_reg, 0);
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for (int i = 0; i < NUM_PREGS; i++) {
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tcg_gen_deposit_tl(control_reg, control_reg, hex_pred[i], i * 8, 8);
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}
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}
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/*
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* Certain control registers require special handling on read
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* HEX_REG_P3_0 aliased to the predicate registers
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* -> concat the 4 predicate registers together
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* HEX_REG_PC actual value stored in DisasContext
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* -> assign from ctx->base.pc_next
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* HEX_REG_QEMU_*_CNT changes in current TB in DisasContext
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* -> add current TB changes to existing reg value
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*/
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static inline void gen_read_ctrl_reg(DisasContext *ctx, const int reg_num,
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TCGv dest)
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{
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if (reg_num == HEX_REG_P3_0) {
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gen_read_p3_0(dest);
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} else if (reg_num == HEX_REG_PC) {
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tcg_gen_movi_tl(dest, ctx->base.pc_next);
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} else if (reg_num == HEX_REG_QEMU_PKT_CNT) {
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tcg_gen_addi_tl(dest, hex_gpr[HEX_REG_QEMU_PKT_CNT],
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ctx->num_packets);
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} else if (reg_num == HEX_REG_QEMU_INSN_CNT) {
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tcg_gen_addi_tl(dest, hex_gpr[HEX_REG_QEMU_INSN_CNT],
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ctx->num_insns);
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} else {
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tcg_gen_mov_tl(dest, hex_gpr[reg_num]);
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}
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}
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static inline void gen_read_ctrl_reg_pair(DisasContext *ctx, const int reg_num,
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TCGv_i64 dest)
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{
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if (reg_num == HEX_REG_P3_0) {
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TCGv p3_0 = tcg_temp_new();
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gen_read_p3_0(p3_0);
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tcg_gen_concat_i32_i64(dest, p3_0, hex_gpr[reg_num + 1]);
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tcg_temp_free(p3_0);
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} else if (reg_num == HEX_REG_PC - 1) {
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TCGv pc = tcg_const_tl(ctx->base.pc_next);
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tcg_gen_concat_i32_i64(dest, hex_gpr[reg_num], pc);
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tcg_temp_free(pc);
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} else if (reg_num == HEX_REG_QEMU_PKT_CNT) {
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TCGv pkt_cnt = tcg_temp_new();
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TCGv insn_cnt = tcg_temp_new();
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tcg_gen_addi_tl(pkt_cnt, hex_gpr[HEX_REG_QEMU_PKT_CNT],
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ctx->num_packets);
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tcg_gen_addi_tl(insn_cnt, hex_gpr[HEX_REG_QEMU_INSN_CNT],
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ctx->num_insns);
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tcg_gen_concat_i32_i64(dest, pkt_cnt, insn_cnt);
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tcg_temp_free(pkt_cnt);
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tcg_temp_free(insn_cnt);
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} else {
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tcg_gen_concat_i32_i64(dest,
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hex_gpr[reg_num],
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hex_gpr[reg_num + 1]);
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}
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}
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static inline void gen_write_p3_0(TCGv control_reg)
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{
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for (int i = 0; i < NUM_PREGS; i++) {
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tcg_gen_extract_tl(hex_pred[i], control_reg, i * 8, 8);
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}
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}
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/*
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* Certain control registers require special handling on write
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* HEX_REG_P3_0 aliased to the predicate registers
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* -> break the value across 4 predicate registers
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* HEX_REG_QEMU_*_CNT changes in current TB in DisasContext
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* -> clear the changes
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*/
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static inline void gen_write_ctrl_reg(DisasContext *ctx, int reg_num,
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TCGv val)
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{
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if (reg_num == HEX_REG_P3_0) {
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gen_write_p3_0(val);
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} else {
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gen_log_reg_write(reg_num, val);
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ctx_log_reg_write(ctx, reg_num);
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if (reg_num == HEX_REG_QEMU_PKT_CNT) {
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ctx->num_packets = 0;
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}
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if (reg_num == HEX_REG_QEMU_INSN_CNT) {
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ctx->num_insns = 0;
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}
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}
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}
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static inline void gen_write_ctrl_reg_pair(DisasContext *ctx, int reg_num,
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TCGv_i64 val)
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{
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if (reg_num == HEX_REG_P3_0) {
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TCGv val32 = tcg_temp_new();
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tcg_gen_extrl_i64_i32(val32, val);
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gen_write_p3_0(val32);
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tcg_gen_extrh_i64_i32(val32, val);
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gen_log_reg_write(reg_num + 1, val32);
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tcg_temp_free(val32);
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ctx_log_reg_write(ctx, reg_num + 1);
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} else {
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gen_log_reg_write_pair(reg_num, val);
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ctx_log_reg_write_pair(ctx, reg_num);
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if (reg_num == HEX_REG_QEMU_PKT_CNT) {
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ctx->num_packets = 0;
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ctx->num_insns = 0;
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}
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}
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}
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static TCGv gen_get_byte(TCGv result, int N, TCGv src, bool sign)
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{
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if (sign) {
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tcg_gen_sextract_tl(result, src, N * 8, 8);
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} else {
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tcg_gen_extract_tl(result, src, N * 8, 8);
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}
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return result;
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}
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static TCGv gen_get_byte_i64(TCGv result, int N, TCGv_i64 src, bool sign)
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{
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TCGv_i64 res64 = tcg_temp_new_i64();
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if (sign) {
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tcg_gen_sextract_i64(res64, src, N * 8, 8);
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} else {
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tcg_gen_extract_i64(res64, src, N * 8, 8);
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}
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tcg_gen_extrl_i64_i32(result, res64);
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tcg_temp_free_i64(res64);
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return result;
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}
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static inline TCGv gen_get_half(TCGv result, int N, TCGv src, bool sign)
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{
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if (sign) {
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tcg_gen_sextract_tl(result, src, N * 16, 16);
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} else {
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tcg_gen_extract_tl(result, src, N * 16, 16);
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}
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return result;
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}
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static inline void gen_set_half(int N, TCGv result, TCGv src)
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{
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tcg_gen_deposit_tl(result, result, src, N * 16, 16);
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}
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static inline void gen_set_half_i64(int N, TCGv_i64 result, TCGv src)
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{
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TCGv_i64 src64 = tcg_temp_new_i64();
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tcg_gen_extu_i32_i64(src64, src);
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tcg_gen_deposit_i64(result, result, src64, N * 16, 16);
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tcg_temp_free_i64(src64);
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}
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static void gen_set_byte_i64(int N, TCGv_i64 result, TCGv src)
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{
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TCGv_i64 src64 = tcg_temp_new_i64();
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tcg_gen_extu_i32_i64(src64, src);
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tcg_gen_deposit_i64(result, result, src64, N * 8, 8);
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tcg_temp_free_i64(src64);
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}
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static inline void gen_load_locked4u(TCGv dest, TCGv vaddr, int mem_index)
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{
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tcg_gen_qemu_ld32u(dest, vaddr, mem_index);
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tcg_gen_mov_tl(hex_llsc_addr, vaddr);
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tcg_gen_mov_tl(hex_llsc_val, dest);
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}
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static inline void gen_load_locked8u(TCGv_i64 dest, TCGv vaddr, int mem_index)
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{
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tcg_gen_qemu_ld64(dest, vaddr, mem_index);
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tcg_gen_mov_tl(hex_llsc_addr, vaddr);
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tcg_gen_mov_i64(hex_llsc_val_i64, dest);
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}
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static inline void gen_store_conditional4(CPUHexagonState *env,
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DisasContext *ctx, int prednum,
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TCGv pred, TCGv vaddr, TCGv src)
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{
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TCGLabel *fail = gen_new_label();
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TCGLabel *done = gen_new_label();
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TCGv one, zero, tmp;
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tcg_gen_brcond_tl(TCG_COND_NE, vaddr, hex_llsc_addr, fail);
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one = tcg_const_tl(0xff);
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zero = tcg_const_tl(0);
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tmp = tcg_temp_new();
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tcg_gen_atomic_cmpxchg_tl(tmp, hex_llsc_addr, hex_llsc_val, src,
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ctx->mem_idx, MO_32);
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tcg_gen_movcond_tl(TCG_COND_EQ, hex_pred[prednum], tmp, hex_llsc_val,
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one, zero);
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tcg_temp_free(one);
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tcg_temp_free(zero);
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tcg_temp_free(tmp);
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tcg_gen_br(done);
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gen_set_label(fail);
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tcg_gen_movi_tl(pred, 0);
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gen_set_label(done);
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tcg_gen_movi_tl(hex_llsc_addr, ~0);
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}
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static inline void gen_store_conditional8(CPUHexagonState *env,
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DisasContext *ctx, int prednum,
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TCGv pred, TCGv vaddr, TCGv_i64 src)
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{
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TCGLabel *fail = gen_new_label();
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TCGLabel *done = gen_new_label();
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TCGv_i64 one, zero, tmp;
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tcg_gen_brcond_tl(TCG_COND_NE, vaddr, hex_llsc_addr, fail);
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one = tcg_const_i64(0xff);
|
|
zero = tcg_const_i64(0);
|
|
tmp = tcg_temp_new_i64();
|
|
tcg_gen_atomic_cmpxchg_i64(tmp, hex_llsc_addr, hex_llsc_val_i64, src,
|
|
ctx->mem_idx, MO_64);
|
|
tcg_gen_movcond_i64(TCG_COND_EQ, tmp, tmp, hex_llsc_val_i64,
|
|
one, zero);
|
|
tcg_gen_extrl_i64_i32(hex_pred[prednum], tmp);
|
|
tcg_temp_free_i64(one);
|
|
tcg_temp_free_i64(zero);
|
|
tcg_temp_free_i64(tmp);
|
|
tcg_gen_br(done);
|
|
|
|
gen_set_label(fail);
|
|
tcg_gen_movi_tl(pred, 0);
|
|
|
|
gen_set_label(done);
|
|
tcg_gen_movi_tl(hex_llsc_addr, ~0);
|
|
}
|
|
|
|
static inline void gen_store32(TCGv vaddr, TCGv src, int width, int slot)
|
|
{
|
|
tcg_gen_mov_tl(hex_store_addr[slot], vaddr);
|
|
tcg_gen_movi_tl(hex_store_width[slot], width);
|
|
tcg_gen_mov_tl(hex_store_val32[slot], src);
|
|
}
|
|
|
|
static inline void gen_store1(TCGv_env cpu_env, TCGv vaddr, TCGv src,
|
|
DisasContext *ctx, int slot)
|
|
{
|
|
gen_store32(vaddr, src, 1, slot);
|
|
ctx->store_width[slot] = 1;
|
|
}
|
|
|
|
static inline void gen_store1i(TCGv_env cpu_env, TCGv vaddr, int32_t src,
|
|
DisasContext *ctx, int slot)
|
|
{
|
|
TCGv tmp = tcg_const_tl(src);
|
|
gen_store1(cpu_env, vaddr, tmp, ctx, slot);
|
|
tcg_temp_free(tmp);
|
|
}
|
|
|
|
static inline void gen_store2(TCGv_env cpu_env, TCGv vaddr, TCGv src,
|
|
DisasContext *ctx, int slot)
|
|
{
|
|
gen_store32(vaddr, src, 2, slot);
|
|
ctx->store_width[slot] = 2;
|
|
}
|
|
|
|
static inline void gen_store2i(TCGv_env cpu_env, TCGv vaddr, int32_t src,
|
|
DisasContext *ctx, int slot)
|
|
{
|
|
TCGv tmp = tcg_const_tl(src);
|
|
gen_store2(cpu_env, vaddr, tmp, ctx, slot);
|
|
tcg_temp_free(tmp);
|
|
}
|
|
|
|
static inline void gen_store4(TCGv_env cpu_env, TCGv vaddr, TCGv src,
|
|
DisasContext *ctx, int slot)
|
|
{
|
|
gen_store32(vaddr, src, 4, slot);
|
|
ctx->store_width[slot] = 4;
|
|
}
|
|
|
|
static inline void gen_store4i(TCGv_env cpu_env, TCGv vaddr, int32_t src,
|
|
DisasContext *ctx, int slot)
|
|
{
|
|
TCGv tmp = tcg_const_tl(src);
|
|
gen_store4(cpu_env, vaddr, tmp, ctx, slot);
|
|
tcg_temp_free(tmp);
|
|
}
|
|
|
|
static inline void gen_store8(TCGv_env cpu_env, TCGv vaddr, TCGv_i64 src,
|
|
DisasContext *ctx, int slot)
|
|
{
|
|
tcg_gen_mov_tl(hex_store_addr[slot], vaddr);
|
|
tcg_gen_movi_tl(hex_store_width[slot], 8);
|
|
tcg_gen_mov_i64(hex_store_val64[slot], src);
|
|
ctx->store_width[slot] = 8;
|
|
}
|
|
|
|
static inline void gen_store8i(TCGv_env cpu_env, TCGv vaddr, int64_t src,
|
|
DisasContext *ctx, int slot)
|
|
{
|
|
TCGv_i64 tmp = tcg_const_i64(src);
|
|
gen_store8(cpu_env, vaddr, tmp, ctx, slot);
|
|
tcg_temp_free_i64(tmp);
|
|
}
|
|
|
|
static TCGv gen_8bitsof(TCGv result, TCGv value)
|
|
{
|
|
TCGv zero = tcg_const_tl(0);
|
|
TCGv ones = tcg_const_tl(0xff);
|
|
tcg_gen_movcond_tl(TCG_COND_NE, result, value, zero, ones, zero);
|
|
tcg_temp_free(zero);
|
|
tcg_temp_free(ones);
|
|
|
|
return result;
|
|
}
|
|
|
|
#include "tcg_funcs_generated.c.inc"
|
|
#include "tcg_func_table_generated.c.inc"
|