2 * Copyright(c) 2019-2023 Qualcomm Innovation Center, Inc. All Rights Reserved.
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, see <http://www.gnu.org/licenses/>.
18 #include "qemu/osdep.h"
21 #include "tcg/tcg-op.h"
22 #include "tcg/tcg-op-gvec.h"
25 #include "translate.h"
26 #define QEMU_GENERATE /* Used internally by macros.h */
28 #include "mmvec/macros.h"
31 #include "gen_tcg_hvx.h"
34 TCGv
gen_read_reg(TCGv result
, int num
)
36 tcg_gen_mov_tl(result
, hex_gpr
[num
]);
40 TCGv
gen_read_preg(TCGv pred
, uint8_t num
)
42 tcg_gen_mov_tl(pred
, hex_pred
[num
]);
46 #define IMMUTABLE (~0)
48 static const target_ulong reg_immut_masks
[TOTAL_PER_THREAD_REGS
] = {
49 [HEX_REG_USR
] = 0xc13000c0,
50 [HEX_REG_PC
] = IMMUTABLE
,
52 [HEX_REG_UPCYCLELO
] = IMMUTABLE
,
53 [HEX_REG_UPCYCLEHI
] = IMMUTABLE
,
54 [HEX_REG_UTIMERLO
] = IMMUTABLE
,
55 [HEX_REG_UTIMERHI
] = IMMUTABLE
,
58 static inline void gen_masked_reg_write(TCGv new_val
, TCGv cur_val
,
59 target_ulong reg_mask
)
62 TCGv tmp
= tcg_temp_new();
64 /* new_val = (new_val & ~reg_mask) | (cur_val & reg_mask) */
65 tcg_gen_andi_tl(new_val
, new_val
, ~reg_mask
);
66 tcg_gen_andi_tl(tmp
, cur_val
, reg_mask
);
67 tcg_gen_or_tl(new_val
, new_val
, tmp
);
71 static inline void gen_log_predicated_reg_write(int rnum
, TCGv val
,
74 TCGv zero
= tcg_constant_tl(0);
75 TCGv slot_mask
= tcg_temp_new();
77 tcg_gen_andi_tl(slot_mask
, hex_slot_cancelled
, 1 << slot
);
78 tcg_gen_movcond_tl(TCG_COND_EQ
, hex_new_value
[rnum
], slot_mask
, zero
,
79 val
, hex_new_value
[rnum
]);
82 * Do this so HELPER(debug_commit_end) will know
84 * Note that slot_mask indicates the value is not written
85 * (i.e., slot was cancelled), so we create a true/false value before
86 * or'ing with hex_reg_written[rnum].
88 tcg_gen_setcond_tl(TCG_COND_EQ
, slot_mask
, slot_mask
, zero
);
89 tcg_gen_or_tl(hex_reg_written
[rnum
], hex_reg_written
[rnum
], slot_mask
);
93 void gen_log_reg_write(int rnum
, TCGv val
)
95 const target_ulong reg_mask
= reg_immut_masks
[rnum
];
97 gen_masked_reg_write(val
, hex_gpr
[rnum
], reg_mask
);
98 tcg_gen_mov_tl(hex_new_value
[rnum
], val
);
100 /* Do this so HELPER(debug_commit_end) will know */
101 tcg_gen_movi_tl(hex_reg_written
[rnum
], 1);
105 static void gen_log_predicated_reg_write_pair(int rnum
, TCGv_i64 val
,
108 TCGv val32
= tcg_temp_new();
109 TCGv zero
= tcg_constant_tl(0);
110 TCGv slot_mask
= tcg_temp_new();
112 tcg_gen_andi_tl(slot_mask
, hex_slot_cancelled
, 1 << slot
);
114 tcg_gen_extrl_i64_i32(val32
, val
);
115 tcg_gen_movcond_tl(TCG_COND_EQ
, hex_new_value
[rnum
],
117 val32
, hex_new_value
[rnum
]);
119 tcg_gen_extrh_i64_i32(val32
, val
);
120 tcg_gen_movcond_tl(TCG_COND_EQ
, hex_new_value
[rnum
+ 1],
122 val32
, hex_new_value
[rnum
+ 1]);
125 * Do this so HELPER(debug_commit_end) will know
127 * Note that slot_mask indicates the value is not written
128 * (i.e., slot was cancelled), so we create a true/false value before
129 * or'ing with hex_reg_written[rnum].
131 tcg_gen_setcond_tl(TCG_COND_EQ
, slot_mask
, slot_mask
, zero
);
132 tcg_gen_or_tl(hex_reg_written
[rnum
], hex_reg_written
[rnum
], slot_mask
);
133 tcg_gen_or_tl(hex_reg_written
[rnum
+ 1], hex_reg_written
[rnum
+ 1],
138 static void gen_log_reg_write_pair(int rnum
, TCGv_i64 val
)
140 const target_ulong reg_mask_low
= reg_immut_masks
[rnum
];
141 const target_ulong reg_mask_high
= reg_immut_masks
[rnum
+ 1];
142 TCGv val32
= tcg_temp_new();
145 tcg_gen_extrl_i64_i32(val32
, val
);
146 gen_masked_reg_write(val32
, hex_gpr
[rnum
], reg_mask_low
);
147 tcg_gen_mov_tl(hex_new_value
[rnum
], val32
);
149 /* Do this so HELPER(debug_commit_end) will know */
150 tcg_gen_movi_tl(hex_reg_written
[rnum
], 1);
154 tcg_gen_extrh_i64_i32(val32
, val
);
155 gen_masked_reg_write(val32
, hex_gpr
[rnum
+ 1], reg_mask_high
);
156 tcg_gen_mov_tl(hex_new_value
[rnum
+ 1], val32
);
158 /* Do this so HELPER(debug_commit_end) will know */
159 tcg_gen_movi_tl(hex_reg_written
[rnum
+ 1], 1);
163 void gen_log_pred_write(DisasContext
*ctx
, int pnum
, TCGv val
)
165 TCGv base_val
= tcg_temp_new();
167 tcg_gen_andi_tl(base_val
, val
, 0xff);
170 * Section 6.1.3 of the Hexagon V67 Programmer's Reference Manual
172 * Multiple writes to the same preg are and'ed together
173 * If this is the first predicate write in the packet, do a
174 * straight assignment. Otherwise, do an and.
176 if (!test_bit(pnum
, ctx
->pregs_written
)) {
177 tcg_gen_mov_tl(hex_new_pred_value
[pnum
], base_val
);
179 tcg_gen_and_tl(hex_new_pred_value
[pnum
],
180 hex_new_pred_value
[pnum
], base_val
);
182 tcg_gen_ori_tl(hex_pred_written
, hex_pred_written
, 1 << pnum
);
185 static inline void gen_read_p3_0(TCGv control_reg
)
187 tcg_gen_movi_tl(control_reg
, 0);
188 for (int i
= 0; i
< NUM_PREGS
; i
++) {
189 tcg_gen_deposit_tl(control_reg
, control_reg
, hex_pred
[i
], i
* 8, 8);
194 * Certain control registers require special handling on read
195 * HEX_REG_P3_0_ALIASED aliased to the predicate registers
196 * -> concat the 4 predicate registers together
197 * HEX_REG_PC actual value stored in DisasContext
198 * -> assign from ctx->base.pc_next
199 * HEX_REG_QEMU_*_CNT changes in current TB in DisasContext
200 * -> add current TB changes to existing reg value
202 static inline void gen_read_ctrl_reg(DisasContext
*ctx
, const int reg_num
,
205 if (reg_num
== HEX_REG_P3_0_ALIASED
) {
207 } else if (reg_num
== HEX_REG_PC
) {
208 tcg_gen_movi_tl(dest
, ctx
->base
.pc_next
);
209 } else if (reg_num
== HEX_REG_QEMU_PKT_CNT
) {
210 tcg_gen_addi_tl(dest
, hex_gpr
[HEX_REG_QEMU_PKT_CNT
],
212 } else if (reg_num
== HEX_REG_QEMU_INSN_CNT
) {
213 tcg_gen_addi_tl(dest
, hex_gpr
[HEX_REG_QEMU_INSN_CNT
],
215 } else if (reg_num
== HEX_REG_QEMU_HVX_CNT
) {
216 tcg_gen_addi_tl(dest
, hex_gpr
[HEX_REG_QEMU_HVX_CNT
],
219 tcg_gen_mov_tl(dest
, hex_gpr
[reg_num
]);
223 static inline void gen_read_ctrl_reg_pair(DisasContext
*ctx
, const int reg_num
,
226 if (reg_num
== HEX_REG_P3_0_ALIASED
) {
227 TCGv p3_0
= tcg_temp_new();
229 tcg_gen_concat_i32_i64(dest
, p3_0
, hex_gpr
[reg_num
+ 1]);
230 } else if (reg_num
== HEX_REG_PC
- 1) {
231 TCGv pc
= tcg_constant_tl(ctx
->base
.pc_next
);
232 tcg_gen_concat_i32_i64(dest
, hex_gpr
[reg_num
], pc
);
233 } else if (reg_num
== HEX_REG_QEMU_PKT_CNT
) {
234 TCGv pkt_cnt
= tcg_temp_new();
235 TCGv insn_cnt
= tcg_temp_new();
236 tcg_gen_addi_tl(pkt_cnt
, hex_gpr
[HEX_REG_QEMU_PKT_CNT
],
238 tcg_gen_addi_tl(insn_cnt
, hex_gpr
[HEX_REG_QEMU_INSN_CNT
],
240 tcg_gen_concat_i32_i64(dest
, pkt_cnt
, insn_cnt
);
241 } else if (reg_num
== HEX_REG_QEMU_HVX_CNT
) {
242 TCGv hvx_cnt
= tcg_temp_new();
243 tcg_gen_addi_tl(hvx_cnt
, hex_gpr
[HEX_REG_QEMU_HVX_CNT
],
245 tcg_gen_concat_i32_i64(dest
, hvx_cnt
, hex_gpr
[reg_num
+ 1]);
247 tcg_gen_concat_i32_i64(dest
,
249 hex_gpr
[reg_num
+ 1]);
253 static void gen_write_p3_0(DisasContext
*ctx
, TCGv control_reg
)
255 TCGv hex_p8
= tcg_temp_new();
256 for (int i
= 0; i
< NUM_PREGS
; i
++) {
257 tcg_gen_extract_tl(hex_p8
, control_reg
, i
* 8, 8);
258 gen_log_pred_write(ctx
, i
, hex_p8
);
259 ctx_log_pred_write(ctx
, i
);
264 * Certain control registers require special handling on write
265 * HEX_REG_P3_0_ALIASED aliased to the predicate registers
266 * -> break the value across 4 predicate registers
267 * HEX_REG_QEMU_*_CNT changes in current TB in DisasContext
268 * -> clear the changes
270 static inline void gen_write_ctrl_reg(DisasContext
*ctx
, int reg_num
,
273 if (reg_num
== HEX_REG_P3_0_ALIASED
) {
274 gen_write_p3_0(ctx
, val
);
276 gen_log_reg_write(reg_num
, val
);
277 ctx_log_reg_write(ctx
, reg_num
);
278 if (reg_num
== HEX_REG_QEMU_PKT_CNT
) {
279 ctx
->num_packets
= 0;
281 if (reg_num
== HEX_REG_QEMU_INSN_CNT
) {
284 if (reg_num
== HEX_REG_QEMU_HVX_CNT
) {
285 ctx
->num_hvx_insns
= 0;
290 static inline void gen_write_ctrl_reg_pair(DisasContext
*ctx
, int reg_num
,
293 if (reg_num
== HEX_REG_P3_0_ALIASED
) {
294 TCGv val32
= tcg_temp_new();
295 tcg_gen_extrl_i64_i32(val32
, val
);
296 gen_write_p3_0(ctx
, val32
);
297 tcg_gen_extrh_i64_i32(val32
, val
);
298 gen_log_reg_write(reg_num
+ 1, val32
);
299 ctx_log_reg_write(ctx
, reg_num
+ 1);
301 gen_log_reg_write_pair(reg_num
, val
);
302 ctx_log_reg_write_pair(ctx
, reg_num
);
303 if (reg_num
== HEX_REG_QEMU_PKT_CNT
) {
304 ctx
->num_packets
= 0;
307 if (reg_num
== HEX_REG_QEMU_HVX_CNT
) {
308 ctx
->num_hvx_insns
= 0;
313 TCGv
gen_get_byte(TCGv result
, int N
, TCGv src
, bool sign
)
316 tcg_gen_sextract_tl(result
, src
, N
* 8, 8);
318 tcg_gen_extract_tl(result
, src
, N
* 8, 8);
323 TCGv
gen_get_byte_i64(TCGv result
, int N
, TCGv_i64 src
, bool sign
)
325 TCGv_i64 res64
= tcg_temp_new_i64();
327 tcg_gen_sextract_i64(res64
, src
, N
* 8, 8);
329 tcg_gen_extract_i64(res64
, src
, N
* 8, 8);
331 tcg_gen_extrl_i64_i32(result
, res64
);
336 TCGv
gen_get_half(TCGv result
, int N
, TCGv src
, bool sign
)
339 tcg_gen_sextract_tl(result
, src
, N
* 16, 16);
341 tcg_gen_extract_tl(result
, src
, N
* 16, 16);
346 void gen_set_half(int N
, TCGv result
, TCGv src
)
348 tcg_gen_deposit_tl(result
, result
, src
, N
* 16, 16);
351 void gen_set_half_i64(int N
, TCGv_i64 result
, TCGv src
)
353 TCGv_i64 src64
= tcg_temp_new_i64();
354 tcg_gen_extu_i32_i64(src64
, src
);
355 tcg_gen_deposit_i64(result
, result
, src64
, N
* 16, 16);
358 void gen_set_byte_i64(int N
, TCGv_i64 result
, TCGv src
)
360 TCGv_i64 src64
= tcg_temp_new_i64();
361 tcg_gen_extu_i32_i64(src64
, src
);
362 tcg_gen_deposit_i64(result
, result
, src64
, N
* 8, 8);
365 static inline void gen_load_locked4u(TCGv dest
, TCGv vaddr
, int mem_index
)
367 tcg_gen_qemu_ld32u(dest
, vaddr
, mem_index
);
368 tcg_gen_mov_tl(hex_llsc_addr
, vaddr
);
369 tcg_gen_mov_tl(hex_llsc_val
, dest
);
372 static inline void gen_load_locked8u(TCGv_i64 dest
, TCGv vaddr
, int mem_index
)
374 tcg_gen_qemu_ld64(dest
, vaddr
, mem_index
);
375 tcg_gen_mov_tl(hex_llsc_addr
, vaddr
);
376 tcg_gen_mov_i64(hex_llsc_val_i64
, dest
);
379 static inline void gen_store_conditional4(DisasContext
*ctx
,
380 TCGv pred
, TCGv vaddr
, TCGv src
)
382 TCGLabel
*fail
= gen_new_label();
383 TCGLabel
*done
= gen_new_label();
386 tcg_gen_brcond_tl(TCG_COND_NE
, vaddr
, hex_llsc_addr
, fail
);
388 one
= tcg_constant_tl(0xff);
389 zero
= tcg_constant_tl(0);
390 tmp
= tcg_temp_new();
391 tcg_gen_atomic_cmpxchg_tl(tmp
, hex_llsc_addr
, hex_llsc_val
, src
,
392 ctx
->mem_idx
, MO_32
);
393 tcg_gen_movcond_tl(TCG_COND_EQ
, pred
, tmp
, hex_llsc_val
,
398 tcg_gen_movi_tl(pred
, 0);
401 tcg_gen_movi_tl(hex_llsc_addr
, ~0);
404 static inline void gen_store_conditional8(DisasContext
*ctx
,
405 TCGv pred
, TCGv vaddr
, TCGv_i64 src
)
407 TCGLabel
*fail
= gen_new_label();
408 TCGLabel
*done
= gen_new_label();
409 TCGv_i64 one
, zero
, tmp
;
411 tcg_gen_brcond_tl(TCG_COND_NE
, vaddr
, hex_llsc_addr
, fail
);
413 one
= tcg_constant_i64(0xff);
414 zero
= tcg_constant_i64(0);
415 tmp
= tcg_temp_new_i64();
416 tcg_gen_atomic_cmpxchg_i64(tmp
, hex_llsc_addr
, hex_llsc_val_i64
, src
,
417 ctx
->mem_idx
, MO_64
);
418 tcg_gen_movcond_i64(TCG_COND_EQ
, tmp
, tmp
, hex_llsc_val_i64
,
420 tcg_gen_extrl_i64_i32(pred
, tmp
);
424 tcg_gen_movi_tl(pred
, 0);
427 tcg_gen_movi_tl(hex_llsc_addr
, ~0);
430 void gen_store32(TCGv vaddr
, TCGv src
, int width
, uint32_t slot
)
432 tcg_gen_mov_tl(hex_store_addr
[slot
], vaddr
);
433 tcg_gen_movi_tl(hex_store_width
[slot
], width
);
434 tcg_gen_mov_tl(hex_store_val32
[slot
], src
);
437 void gen_store1(TCGv_env cpu_env
, TCGv vaddr
, TCGv src
, uint32_t slot
)
439 gen_store32(vaddr
, src
, 1, slot
);
442 void gen_store1i(TCGv_env cpu_env
, TCGv vaddr
, int32_t src
, uint32_t slot
)
444 TCGv tmp
= tcg_constant_tl(src
);
445 gen_store1(cpu_env
, vaddr
, tmp
, slot
);
448 void gen_store2(TCGv_env cpu_env
, TCGv vaddr
, TCGv src
, uint32_t slot
)
450 gen_store32(vaddr
, src
, 2, slot
);
453 void gen_store2i(TCGv_env cpu_env
, TCGv vaddr
, int32_t src
, uint32_t slot
)
455 TCGv tmp
= tcg_constant_tl(src
);
456 gen_store2(cpu_env
, vaddr
, tmp
, slot
);
459 void gen_store4(TCGv_env cpu_env
, TCGv vaddr
, TCGv src
, uint32_t slot
)
461 gen_store32(vaddr
, src
, 4, slot
);
464 void gen_store4i(TCGv_env cpu_env
, TCGv vaddr
, int32_t src
, uint32_t slot
)
466 TCGv tmp
= tcg_constant_tl(src
);
467 gen_store4(cpu_env
, vaddr
, tmp
, slot
);
470 void gen_store8(TCGv_env cpu_env
, TCGv vaddr
, TCGv_i64 src
, uint32_t slot
)
472 tcg_gen_mov_tl(hex_store_addr
[slot
], vaddr
);
473 tcg_gen_movi_tl(hex_store_width
[slot
], 8);
474 tcg_gen_mov_i64(hex_store_val64
[slot
], src
);
477 void gen_store8i(TCGv_env cpu_env
, TCGv vaddr
, int64_t src
, uint32_t slot
)
479 TCGv_i64 tmp
= tcg_constant_i64(src
);
480 gen_store8(cpu_env
, vaddr
, tmp
, slot
);
483 TCGv
gen_8bitsof(TCGv result
, TCGv value
)
485 TCGv zero
= tcg_constant_tl(0);
486 TCGv ones
= tcg_constant_tl(0xff);
487 tcg_gen_movcond_tl(TCG_COND_NE
, result
, value
, zero
, ones
, zero
);
492 static void gen_write_new_pc_addr(DisasContext
*ctx
, TCGv addr
,
493 TCGCond cond
, TCGv pred
)
495 TCGLabel
*pred_false
= NULL
;
496 if (cond
!= TCG_COND_ALWAYS
) {
497 pred_false
= gen_new_label();
498 tcg_gen_brcondi_tl(cond
, pred
, 0, pred_false
);
501 if (ctx
->pkt
->pkt_has_multi_cof
) {
502 /* If there are multiple branches in a packet, ignore the second one */
503 tcg_gen_movcond_tl(TCG_COND_NE
, hex_gpr
[HEX_REG_PC
],
504 hex_branch_taken
, tcg_constant_tl(0),
505 hex_gpr
[HEX_REG_PC
], addr
);
506 tcg_gen_movi_tl(hex_branch_taken
, 1);
508 tcg_gen_mov_tl(hex_gpr
[HEX_REG_PC
], addr
);
511 if (cond
!= TCG_COND_ALWAYS
) {
512 gen_set_label(pred_false
);
516 static void gen_write_new_pc_pcrel(DisasContext
*ctx
, int pc_off
,
517 TCGCond cond
, TCGv pred
)
519 target_ulong dest
= ctx
->pkt
->pc
+ pc_off
;
520 if (ctx
->pkt
->pkt_has_multi_cof
) {
521 gen_write_new_pc_addr(ctx
, tcg_constant_tl(dest
), cond
, pred
);
523 /* Defer this jump to the end of the TB */
524 ctx
->branch_cond
= TCG_COND_ALWAYS
;
526 ctx
->branch_cond
= cond
;
527 tcg_gen_mov_tl(hex_branch_taken
, pred
);
529 ctx
->branch_dest
= dest
;
533 void gen_set_usr_field(int field
, TCGv val
)
535 tcg_gen_deposit_tl(hex_new_value
[HEX_REG_USR
], hex_new_value
[HEX_REG_USR
],
537 reg_field_info
[field
].offset
,
538 reg_field_info
[field
].width
);
541 void gen_set_usr_fieldi(int field
, int x
)
543 if (reg_field_info
[field
].width
== 1) {
544 target_ulong bit
= 1 << reg_field_info
[field
].offset
;
546 tcg_gen_ori_tl(hex_new_value
[HEX_REG_USR
],
547 hex_new_value
[HEX_REG_USR
],
550 tcg_gen_andi_tl(hex_new_value
[HEX_REG_USR
],
551 hex_new_value
[HEX_REG_USR
],
555 TCGv val
= tcg_constant_tl(x
);
556 gen_set_usr_field(field
, val
);
560 static void gen_compare(TCGCond cond
, TCGv res
, TCGv arg1
, TCGv arg2
)
562 TCGv one
= tcg_constant_tl(0xff);
563 TCGv zero
= tcg_constant_tl(0);
565 tcg_gen_movcond_tl(cond
, res
, arg1
, arg2
, one
, zero
);
568 static void gen_cond_jumpr(DisasContext
*ctx
, TCGv dst_pc
,
569 TCGCond cond
, TCGv pred
)
571 gen_write_new_pc_addr(ctx
, dst_pc
, cond
, pred
);
574 static void gen_cond_jumpr31(DisasContext
*ctx
, TCGCond cond
, TCGv pred
)
576 TCGv LSB
= tcg_temp_new();
577 tcg_gen_andi_tl(LSB
, pred
, 1);
578 gen_cond_jumpr(ctx
, hex_gpr
[HEX_REG_LR
], cond
, LSB
);
581 static void gen_cond_jump(DisasContext
*ctx
, TCGCond cond
, TCGv pred
,
584 gen_write_new_pc_pcrel(ctx
, pc_off
, cond
, pred
);
587 static void gen_cmpnd_cmp_jmp(DisasContext
*ctx
,
588 int pnum
, TCGCond cond1
, TCGv arg1
, TCGv arg2
,
589 TCGCond cond2
, int pc_off
)
591 if (ctx
->insn
->part1
) {
592 TCGv pred
= tcg_temp_new();
593 gen_compare(cond1
, pred
, arg1
, arg2
);
594 gen_log_pred_write(ctx
, pnum
, pred
);
596 TCGv pred
= tcg_temp_new();
597 tcg_gen_mov_tl(pred
, hex_new_pred_value
[pnum
]);
598 gen_cond_jump(ctx
, cond2
, pred
, pc_off
);
602 static void gen_cmpnd_cmp_jmp_t(DisasContext
*ctx
,
603 int pnum
, TCGCond cond
, TCGv arg1
, TCGv arg2
,
606 gen_cmpnd_cmp_jmp(ctx
, pnum
, cond
, arg1
, arg2
, TCG_COND_EQ
, pc_off
);
609 static void gen_cmpnd_cmp_jmp_f(DisasContext
*ctx
,
610 int pnum
, TCGCond cond
, TCGv arg1
, TCGv arg2
,
613 gen_cmpnd_cmp_jmp(ctx
, pnum
, cond
, arg1
, arg2
, TCG_COND_NE
, pc_off
);
616 static void gen_cmpnd_cmpi_jmp_t(DisasContext
*ctx
,
617 int pnum
, TCGCond cond
, TCGv arg1
, int arg2
,
620 TCGv tmp
= tcg_constant_tl(arg2
);
621 gen_cmpnd_cmp_jmp(ctx
, pnum
, cond
, arg1
, tmp
, TCG_COND_EQ
, pc_off
);
624 static void gen_cmpnd_cmpi_jmp_f(DisasContext
*ctx
,
625 int pnum
, TCGCond cond
, TCGv arg1
, int arg2
,
628 TCGv tmp
= tcg_constant_tl(arg2
);
629 gen_cmpnd_cmp_jmp(ctx
, pnum
, cond
, arg1
, tmp
, TCG_COND_NE
, pc_off
);
632 static void gen_cmpnd_cmp_n1_jmp_t(DisasContext
*ctx
, int pnum
, TCGCond cond
,
633 TCGv arg
, int pc_off
)
635 gen_cmpnd_cmpi_jmp_t(ctx
, pnum
, cond
, arg
, -1, pc_off
);
638 static void gen_cmpnd_cmp_n1_jmp_f(DisasContext
*ctx
, int pnum
, TCGCond cond
,
639 TCGv arg
, int pc_off
)
641 gen_cmpnd_cmpi_jmp_f(ctx
, pnum
, cond
, arg
, -1, pc_off
);
644 static void gen_cmpnd_tstbit0_jmp(DisasContext
*ctx
,
645 int pnum
, TCGv arg
, TCGCond cond
, int pc_off
)
647 if (ctx
->insn
->part1
) {
648 TCGv pred
= tcg_temp_new();
649 tcg_gen_andi_tl(pred
, arg
, 1);
650 gen_8bitsof(pred
, pred
);
651 gen_log_pred_write(ctx
, pnum
, pred
);
653 TCGv pred
= tcg_temp_new();
654 tcg_gen_mov_tl(pred
, hex_new_pred_value
[pnum
]);
655 gen_cond_jump(ctx
, cond
, pred
, pc_off
);
659 static void gen_testbit0_jumpnv(DisasContext
*ctx
,
660 TCGv arg
, TCGCond cond
, int pc_off
)
662 TCGv pred
= tcg_temp_new();
663 tcg_gen_andi_tl(pred
, arg
, 1);
664 gen_cond_jump(ctx
, cond
, pred
, pc_off
);
667 static void gen_jump(DisasContext
*ctx
, int pc_off
)
669 gen_write_new_pc_pcrel(ctx
, pc_off
, TCG_COND_ALWAYS
, NULL
);
672 static void gen_jumpr(DisasContext
*ctx
, TCGv new_pc
)
674 gen_write_new_pc_addr(ctx
, new_pc
, TCG_COND_ALWAYS
, NULL
);
677 static void gen_call(DisasContext
*ctx
, int pc_off
)
680 tcg_constant_tl(ctx
->pkt
->pc
+ ctx
->pkt
->encod_pkt_size_in_bytes
);
681 gen_log_reg_write(HEX_REG_LR
, next_PC
);
682 gen_write_new_pc_pcrel(ctx
, pc_off
, TCG_COND_ALWAYS
, NULL
);
685 static void gen_cond_call(DisasContext
*ctx
, TCGv pred
,
686 TCGCond cond
, int pc_off
)
689 TCGv lsb
= tcg_temp_new();
690 TCGLabel
*skip
= gen_new_label();
691 tcg_gen_andi_tl(lsb
, pred
, 1);
692 gen_write_new_pc_pcrel(ctx
, pc_off
, cond
, lsb
);
693 tcg_gen_brcondi_tl(cond
, lsb
, 0, skip
);
695 tcg_constant_tl(ctx
->pkt
->pc
+ ctx
->pkt
->encod_pkt_size_in_bytes
);
696 gen_log_reg_write(HEX_REG_LR
, next_PC
);
700 static void gen_endloop0(DisasContext
*ctx
)
702 TCGv lpcfg
= tcg_temp_new();
704 GET_USR_FIELD(USR_LPCFG
, lpcfg
);
708 * hex_new_pred_value[3] = 0xff;
709 * hex_pred_written |= 1 << 3;
712 TCGLabel
*label1
= gen_new_label();
713 tcg_gen_brcondi_tl(TCG_COND_NE
, lpcfg
, 1, label1
);
715 tcg_gen_movi_tl(hex_new_pred_value
[3], 0xff);
716 tcg_gen_ori_tl(hex_pred_written
, hex_pred_written
, 1 << 3);
718 gen_set_label(label1
);
722 * SET_USR_FIELD(USR_LPCFG, lpcfg - 1);
725 TCGLabel
*label2
= gen_new_label();
726 tcg_gen_brcondi_tl(TCG_COND_EQ
, lpcfg
, 0, label2
);
728 tcg_gen_subi_tl(lpcfg
, lpcfg
, 1);
729 SET_USR_FIELD(USR_LPCFG
, lpcfg
);
731 gen_set_label(label2
);
734 * If we're in a tight loop, we'll do this at the end of the TB to take
735 * advantage of direct block chaining.
737 if (!ctx
->is_tight_loop
) {
739 * if (hex_gpr[HEX_REG_LC0] > 1) {
740 * PC = hex_gpr[HEX_REG_SA0];
741 * hex_new_value[HEX_REG_LC0] = hex_gpr[HEX_REG_LC0] - 1;
744 TCGLabel
*label3
= gen_new_label();
745 tcg_gen_brcondi_tl(TCG_COND_LEU
, hex_gpr
[HEX_REG_LC0
], 1, label3
);
747 gen_jumpr(ctx
, hex_gpr
[HEX_REG_SA0
]);
748 tcg_gen_subi_tl(hex_new_value
[HEX_REG_LC0
],
749 hex_gpr
[HEX_REG_LC0
], 1);
751 gen_set_label(label3
);
755 static void gen_cmp_jumpnv(DisasContext
*ctx
,
756 TCGCond cond
, TCGv val
, TCGv src
, int pc_off
)
758 TCGv pred
= tcg_temp_new();
759 tcg_gen_setcond_tl(cond
, pred
, val
, src
);
760 gen_cond_jump(ctx
, TCG_COND_EQ
, pred
, pc_off
);
763 static void gen_cmpi_jumpnv(DisasContext
*ctx
,
764 TCGCond cond
, TCGv val
, int src
, int pc_off
)
766 TCGv pred
= tcg_temp_new();
767 tcg_gen_setcondi_tl(cond
, pred
, val
, src
);
768 gen_cond_jump(ctx
, TCG_COND_EQ
, pred
, pc_off
);
771 /* Shift left with saturation */
772 static void gen_shl_sat(TCGv dst
, TCGv src
, TCGv shift_amt
)
774 TCGv sh32
= tcg_temp_new();
775 TCGv dst_sar
= tcg_temp_new();
776 TCGv ovf
= tcg_temp_new();
777 TCGv satval
= tcg_temp_new();
778 TCGv min
= tcg_constant_tl(0x80000000);
779 TCGv max
= tcg_constant_tl(0x7fffffff);
782 * Possible values for shift_amt are 0 .. 64
783 * We need special handling for values above 31
786 * dst = sh32 == shift ? src : 0;
788 * dst_sar = dst >> sh32;
789 * satval = src < 0 ? min : max;
790 * if (dst_asr != src) {
796 tcg_gen_andi_tl(sh32
, shift_amt
, 31);
797 tcg_gen_movcond_tl(TCG_COND_EQ
, dst
, sh32
, shift_amt
,
798 src
, tcg_constant_tl(0));
799 tcg_gen_shl_tl(dst
, dst
, sh32
);
800 tcg_gen_sar_tl(dst_sar
, dst
, sh32
);
801 tcg_gen_movcond_tl(TCG_COND_LT
, satval
, src
, tcg_constant_tl(0), min
, max
);
803 tcg_gen_setcond_tl(TCG_COND_NE
, ovf
, dst_sar
, src
);
804 tcg_gen_shli_tl(ovf
, ovf
, reg_field_info
[USR_OVF
].offset
);
805 tcg_gen_or_tl(hex_new_value
[HEX_REG_USR
], hex_new_value
[HEX_REG_USR
], ovf
);
807 tcg_gen_movcond_tl(TCG_COND_EQ
, dst
, dst_sar
, src
, dst
, satval
);
810 static void gen_sar(TCGv dst
, TCGv src
, TCGv shift_amt
)
813 * Shift arithmetic right
814 * Robust when shift_amt is >31 bits
816 TCGv tmp
= tcg_temp_new();
817 tcg_gen_umin_tl(tmp
, shift_amt
, tcg_constant_tl(31));
818 tcg_gen_sar_tl(dst
, src
, tmp
);
821 /* Bidirectional shift right with saturation */
822 static void gen_asr_r_r_sat(TCGv RdV
, TCGv RsV
, TCGv RtV
)
824 TCGv shift_amt
= tcg_temp_new();
825 TCGLabel
*positive
= gen_new_label();
826 TCGLabel
*done
= gen_new_label();
828 tcg_gen_sextract_i32(shift_amt
, RtV
, 0, 7);
829 tcg_gen_brcondi_tl(TCG_COND_GE
, shift_amt
, 0, positive
);
831 /* Negative shift amount => shift left */
832 tcg_gen_neg_tl(shift_amt
, shift_amt
);
833 gen_shl_sat(RdV
, RsV
, shift_amt
);
836 gen_set_label(positive
);
837 /* Positive shift amount => shift right */
838 gen_sar(RdV
, RsV
, shift_amt
);
843 /* Bidirectional shift left with saturation */
844 static void gen_asl_r_r_sat(TCGv RdV
, TCGv RsV
, TCGv RtV
)
846 TCGv shift_amt
= tcg_temp_new();
847 TCGLabel
*positive
= gen_new_label();
848 TCGLabel
*done
= gen_new_label();
850 tcg_gen_sextract_i32(shift_amt
, RtV
, 0, 7);
851 tcg_gen_brcondi_tl(TCG_COND_GE
, shift_amt
, 0, positive
);
853 /* Negative shift amount => shift right */
854 tcg_gen_neg_tl(shift_amt
, shift_amt
);
855 gen_sar(RdV
, RsV
, shift_amt
);
858 gen_set_label(positive
);
859 /* Positive shift amount => shift left */
860 gen_shl_sat(RdV
, RsV
, shift_amt
);
865 static intptr_t vreg_src_off(DisasContext
*ctx
, int num
)
867 intptr_t offset
= offsetof(CPUHexagonState
, VRegs
[num
]);
869 if (test_bit(num
, ctx
->vregs_select
)) {
870 offset
= ctx_future_vreg_off(ctx
, num
, 1, false);
872 if (test_bit(num
, ctx
->vregs_updated_tmp
)) {
873 offset
= ctx_tmp_vreg_off(ctx
, num
, 1, false);
878 static void gen_log_vreg_write(DisasContext
*ctx
, intptr_t srcoff
, int num
,
879 VRegWriteType type
, int slot_num
,
882 TCGLabel
*label_end
= NULL
;
886 TCGv cancelled
= tcg_temp_new();
887 label_end
= gen_new_label();
889 /* Don't do anything if the slot was cancelled */
890 tcg_gen_extract_tl(cancelled
, hex_slot_cancelled
, slot_num
, 1);
891 tcg_gen_brcondi_tl(TCG_COND_NE
, cancelled
, 0, label_end
);
894 if (type
!= EXT_TMP
) {
895 dstoff
= ctx_future_vreg_off(ctx
, num
, 1, true);
896 tcg_gen_gvec_mov(MO_64
, dstoff
, srcoff
,
897 sizeof(MMVector
), sizeof(MMVector
));
898 tcg_gen_ori_tl(hex_VRegs_updated
, hex_VRegs_updated
, 1 << num
);
900 dstoff
= ctx_tmp_vreg_off(ctx
, num
, 1, false);
901 tcg_gen_gvec_mov(MO_64
, dstoff
, srcoff
,
902 sizeof(MMVector
), sizeof(MMVector
));
906 gen_set_label(label_end
);
910 static void gen_log_vreg_write_pair(DisasContext
*ctx
, intptr_t srcoff
, int num
,
911 VRegWriteType type
, int slot_num
,
914 gen_log_vreg_write(ctx
, srcoff
, num
^ 0, type
, slot_num
, is_predicated
);
915 srcoff
+= sizeof(MMVector
);
916 gen_log_vreg_write(ctx
, srcoff
, num
^ 1, type
, slot_num
, is_predicated
);
919 static void gen_log_qreg_write(intptr_t srcoff
, int num
, int vnew
,
920 int slot_num
, bool is_predicated
)
922 TCGLabel
*label_end
= NULL
;
926 TCGv cancelled
= tcg_temp_new();
927 label_end
= gen_new_label();
929 /* Don't do anything if the slot was cancelled */
930 tcg_gen_extract_tl(cancelled
, hex_slot_cancelled
, slot_num
, 1);
931 tcg_gen_brcondi_tl(TCG_COND_NE
, cancelled
, 0, label_end
);
934 dstoff
= offsetof(CPUHexagonState
, future_QRegs
[num
]);
935 tcg_gen_gvec_mov(MO_64
, dstoff
, srcoff
, sizeof(MMQReg
), sizeof(MMQReg
));
938 tcg_gen_ori_tl(hex_QRegs_updated
, hex_QRegs_updated
, 1 << num
);
939 gen_set_label(label_end
);
943 static void gen_vreg_load(DisasContext
*ctx
, intptr_t dstoff
, TCGv src
,
946 TCGv_i64 tmp
= tcg_temp_new_i64();
948 tcg_gen_andi_tl(src
, src
, ~((int32_t)sizeof(MMVector
) - 1));
950 for (int i
= 0; i
< sizeof(MMVector
) / 8; i
++) {
951 tcg_gen_qemu_ld64(tmp
, src
, ctx
->mem_idx
);
952 tcg_gen_addi_tl(src
, src
, 8);
953 tcg_gen_st_i64(tmp
, cpu_env
, dstoff
+ i
* 8);
957 static void gen_vreg_store(DisasContext
*ctx
, TCGv EA
, intptr_t srcoff
,
958 int slot
, bool aligned
)
960 intptr_t dstoff
= offsetof(CPUHexagonState
, vstore
[slot
].data
);
961 intptr_t maskoff
= offsetof(CPUHexagonState
, vstore
[slot
].mask
);
963 if (is_gather_store_insn(ctx
)) {
964 TCGv sl
= tcg_constant_tl(slot
);
965 gen_helper_gather_store(cpu_env
, EA
, sl
);
969 tcg_gen_movi_tl(hex_vstore_pending
[slot
], 1);
971 tcg_gen_andi_tl(hex_vstore_addr
[slot
], EA
,
972 ~((int32_t)sizeof(MMVector
) - 1));
974 tcg_gen_mov_tl(hex_vstore_addr
[slot
], EA
);
976 tcg_gen_movi_tl(hex_vstore_size
[slot
], sizeof(MMVector
));
978 /* Copy the data to the vstore buffer */
979 tcg_gen_gvec_mov(MO_64
, dstoff
, srcoff
, sizeof(MMVector
), sizeof(MMVector
));
980 /* Set the mask to all 1's */
981 tcg_gen_gvec_dup_imm(MO_64
, maskoff
, sizeof(MMQReg
), sizeof(MMQReg
), ~0LL);
984 static void gen_vreg_masked_store(DisasContext
*ctx
, TCGv EA
, intptr_t srcoff
,
985 intptr_t bitsoff
, int slot
, bool invert
)
987 intptr_t dstoff
= offsetof(CPUHexagonState
, vstore
[slot
].data
);
988 intptr_t maskoff
= offsetof(CPUHexagonState
, vstore
[slot
].mask
);
990 tcg_gen_movi_tl(hex_vstore_pending
[slot
], 1);
991 tcg_gen_andi_tl(hex_vstore_addr
[slot
], EA
,
992 ~((int32_t)sizeof(MMVector
) - 1));
993 tcg_gen_movi_tl(hex_vstore_size
[slot
], sizeof(MMVector
));
995 /* Copy the data to the vstore buffer */
996 tcg_gen_gvec_mov(MO_64
, dstoff
, srcoff
, sizeof(MMVector
), sizeof(MMVector
));
998 tcg_gen_gvec_mov(MO_64
, maskoff
, bitsoff
, sizeof(MMQReg
), sizeof(MMQReg
));
1000 tcg_gen_gvec_not(MO_64
, maskoff
, maskoff
,
1001 sizeof(MMQReg
), sizeof(MMQReg
));
1005 static void vec_to_qvec(size_t size
, intptr_t dstoff
, intptr_t srcoff
)
1007 TCGv_i64 tmp
= tcg_temp_new_i64();
1008 TCGv_i64 word
= tcg_temp_new_i64();
1009 TCGv_i64 bits
= tcg_temp_new_i64();
1010 TCGv_i64 mask
= tcg_temp_new_i64();
1011 TCGv_i64 zero
= tcg_constant_i64(0);
1012 TCGv_i64 ones
= tcg_constant_i64(~0);
1014 for (int i
= 0; i
< sizeof(MMVector
) / 8; i
++) {
1015 tcg_gen_ld_i64(tmp
, cpu_env
, srcoff
+ i
* 8);
1016 tcg_gen_movi_i64(mask
, 0);
1018 for (int j
= 0; j
< 8; j
+= size
) {
1019 tcg_gen_extract_i64(word
, tmp
, j
* 8, size
* 8);
1020 tcg_gen_movcond_i64(TCG_COND_NE
, bits
, word
, zero
, ones
, zero
);
1021 tcg_gen_deposit_i64(mask
, mask
, bits
, j
, size
);
1024 tcg_gen_st8_i64(mask
, cpu_env
, dstoff
+ i
);
1028 void probe_noshuf_load(TCGv va
, int s
, int mi
)
1030 TCGv size
= tcg_constant_tl(s
);
1031 TCGv mem_idx
= tcg_constant_tl(mi
);
1032 gen_helper_probe_noshuf_load(cpu_env
, va
, size
, mem_idx
);
1036 * Note: Since this function might branch, `val` is
1037 * required to be a `tcg_temp_local`.
1039 void gen_set_usr_field_if(int field
, TCGv val
)
1041 /* Sets the USR field if `val` is non-zero */
1042 if (reg_field_info
[field
].width
== 1) {
1043 TCGv tmp
= tcg_temp_new();
1044 tcg_gen_extract_tl(tmp
, val
, 0, reg_field_info
[field
].width
);
1045 tcg_gen_shli_tl(tmp
, tmp
, reg_field_info
[field
].offset
);
1046 tcg_gen_or_tl(hex_new_value
[HEX_REG_USR
],
1047 hex_new_value
[HEX_REG_USR
],
1050 TCGLabel
*skip_label
= gen_new_label();
1051 tcg_gen_brcondi_tl(TCG_COND_EQ
, val
, 0, skip_label
);
1052 gen_set_usr_field(field
, val
);
1053 gen_set_label(skip_label
);
1057 void gen_sat_i32(TCGv dest
, TCGv source
, int width
)
1059 TCGv max_val
= tcg_constant_tl((1 << (width
- 1)) - 1);
1060 TCGv min_val
= tcg_constant_tl(-(1 << (width
- 1)));
1061 tcg_gen_smin_tl(dest
, source
, max_val
);
1062 tcg_gen_smax_tl(dest
, dest
, min_val
);
1065 void gen_sat_i32_ovfl(TCGv ovfl
, TCGv dest
, TCGv source
, int width
)
1067 gen_sat_i32(dest
, source
, width
);
1068 tcg_gen_setcond_tl(TCG_COND_NE
, ovfl
, source
, dest
);
1071 void gen_satu_i32(TCGv dest
, TCGv source
, int width
)
1073 TCGv max_val
= tcg_constant_tl((1 << width
) - 1);
1074 TCGv zero
= tcg_constant_tl(0);
1075 tcg_gen_movcond_tl(TCG_COND_GTU
, dest
, source
, max_val
, max_val
, source
);
1076 tcg_gen_movcond_tl(TCG_COND_LT
, dest
, source
, zero
, zero
, dest
);
1079 void gen_satu_i32_ovfl(TCGv ovfl
, TCGv dest
, TCGv source
, int width
)
1081 gen_satu_i32(dest
, source
, width
);
1082 tcg_gen_setcond_tl(TCG_COND_NE
, ovfl
, source
, dest
);
1085 void gen_sat_i64(TCGv_i64 dest
, TCGv_i64 source
, int width
)
1087 TCGv_i64 max_val
= tcg_constant_i64((1LL << (width
- 1)) - 1LL);
1088 TCGv_i64 min_val
= tcg_constant_i64(-(1LL << (width
- 1)));
1089 tcg_gen_smin_i64(dest
, source
, max_val
);
1090 tcg_gen_smax_i64(dest
, dest
, min_val
);
1093 void gen_sat_i64_ovfl(TCGv ovfl
, TCGv_i64 dest
, TCGv_i64 source
, int width
)
1096 gen_sat_i64(dest
, source
, width
);
1097 ovfl_64
= tcg_temp_new_i64();
1098 tcg_gen_setcond_i64(TCG_COND_NE
, ovfl_64
, dest
, source
);
1099 tcg_gen_trunc_i64_tl(ovfl
, ovfl_64
);
1102 void gen_satu_i64(TCGv_i64 dest
, TCGv_i64 source
, int width
)
1104 TCGv_i64 max_val
= tcg_constant_i64((1LL << width
) - 1LL);
1105 TCGv_i64 zero
= tcg_constant_i64(0);
1106 tcg_gen_movcond_i64(TCG_COND_GTU
, dest
, source
, max_val
, max_val
, source
);
1107 tcg_gen_movcond_i64(TCG_COND_LT
, dest
, source
, zero
, zero
, dest
);
1110 void gen_satu_i64_ovfl(TCGv ovfl
, TCGv_i64 dest
, TCGv_i64 source
, int width
)
1113 gen_satu_i64(dest
, source
, width
);
1114 ovfl_64
= tcg_temp_new_i64();
1115 tcg_gen_setcond_i64(TCG_COND_NE
, ovfl_64
, dest
, source
);
1116 tcg_gen_trunc_i64_tl(ovfl
, ovfl_64
);
1119 /* Implements the fADDSAT64 macro in TCG */
1120 void gen_add_sat_i64(TCGv_i64 ret
, TCGv_i64 a
, TCGv_i64 b
)
1122 TCGv_i64 sum
= tcg_temp_new_i64();
1123 TCGv_i64
xor = tcg_temp_new_i64();
1124 TCGv_i64 cond1
= tcg_temp_new_i64();
1125 TCGv_i64 cond2
= tcg_temp_new_i64();
1126 TCGv_i64 cond3
= tcg_temp_new_i64();
1127 TCGv_i64 mask
= tcg_constant_i64(0x8000000000000000ULL
);
1128 TCGv_i64 max_pos
= tcg_constant_i64(0x7FFFFFFFFFFFFFFFLL
);
1129 TCGv_i64 max_neg
= tcg_constant_i64(0x8000000000000000LL
);
1130 TCGv_i64 zero
= tcg_constant_i64(0);
1131 TCGLabel
*no_ovfl_label
= gen_new_label();
1132 TCGLabel
*ovfl_label
= gen_new_label();
1133 TCGLabel
*ret_label
= gen_new_label();
1135 tcg_gen_add_i64(sum
, a
, b
);
1136 tcg_gen_xor_i64(xor, a
, b
);
1138 /* if (xor & mask) */
1139 tcg_gen_and_i64(cond1
, xor, mask
);
1140 tcg_gen_brcondi_i64(TCG_COND_NE
, cond1
, 0, no_ovfl_label
);
1142 /* else if ((a ^ sum) & mask) */
1143 tcg_gen_xor_i64(cond2
, a
, sum
);
1144 tcg_gen_and_i64(cond2
, cond2
, mask
);
1145 tcg_gen_brcondi_i64(TCG_COND_NE
, cond2
, 0, ovfl_label
);
1146 /* fallthrough to no_ovfl_label branch */
1149 gen_set_label(no_ovfl_label
);
1150 tcg_gen_mov_i64(ret
, sum
);
1151 tcg_gen_br(ret_label
);
1153 /* else if branch */
1154 gen_set_label(ovfl_label
);
1155 tcg_gen_and_i64(cond3
, sum
, mask
);
1156 tcg_gen_movcond_i64(TCG_COND_NE
, ret
, cond3
, zero
, max_pos
, max_neg
);
1157 SET_USR_FIELD(USR_OVF
, 1);
1159 gen_set_label(ret_label
);
1162 #include "tcg_funcs_generated.c.inc"
1163 #include "tcg_func_table_generated.c.inc"