[pcsx_rearmed.git] / libpcsxcore / new_dynarec / linkage_arm64.S

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 *   linkage_arm.s for PCSX                                                *
 *   Copyright (C) 2009-2011 Ari64                                         *
 *   Copyright (C) 2021 notaz                                              *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.          *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

#include "arm_features.h"
#include "new_dynarec_config.h"
#include "assem_arm64.h"
#include "linkage_offsets.h"

#if (LO_mem_wtab & 7)
#error misligned pointers
#endif

.bss
	.align	4
	.global dynarec_local
	.type	dynarec_local, %object
	.size	dynarec_local, LO_dynarec_local_size
dynarec_local:
	.space	LO_dynarec_local_size

#define DRC_VAR_(name, vname, size_) \
	vname = dynarec_local + LO_##name; \
	.global vname; \
	.type	vname, %object; \
	.size	vname, size_

#define DRC_VAR(name, size_) \
	DRC_VAR_(name, ESYM(name), size_)

DRC_VAR(next_interupt, 4)
DRC_VAR(cycle_count, 4)
DRC_VAR(last_count, 4)
DRC_VAR(pending_exception, 4)
DRC_VAR(stop, 4)
DRC_VAR(branch_target, 4)
DRC_VAR(address, 4)
DRC_VAR(hack_addr, 4)
DRC_VAR(psxRegs, LO_psxRegs_end - LO_psxRegs)

/* psxRegs */
#DRC_VAR(reg, 128)
DRC_VAR(lo, 4)
DRC_VAR(hi, 4)
DRC_VAR(reg_cop0, 128)
DRC_VAR(reg_cop2d, 128)
DRC_VAR(reg_cop2c, 128)
DRC_VAR(pcaddr, 4)
#DRC_VAR(code, 4)
#DRC_VAR(cycle, 4)
#DRC_VAR(interrupt, 4)
#DRC_VAR(intCycle, 256)

DRC_VAR(rcnts, 7*4*4)
DRC_VAR(inv_code_start, 4)
DRC_VAR(inv_code_end, 4)
DRC_VAR(mem_rtab, 8)
DRC_VAR(mem_wtab, 8)
DRC_VAR(psxH_ptr, 8)
DRC_VAR(invc_ptr, 8)
DRC_VAR(zeromem_ptr, 8)
DRC_VAR(scratch_buf_ptr, 8)
DRC_VAR(ram_offset, 8)
DRC_VAR(mini_ht, 256)


	.text
	.align	2

FUNCTION(dyna_linker):
	/* r0 = virtual target address */
	/* r1 = instruction to patch */
	bl	get_addr_ht
	br	x0
	.size	dyna_linker, .-dyna_linker

	.align	2
FUNCTION(cc_interrupt):
	ldr	w0, [rFP, #LO_last_count]
	add	rCC, w0, rCC
	str	wzr, [rFP, #LO_pending_exception]
	str	rCC, [rFP, #LO_cycle]		/* PCSX cycles */
#	str	rCC, [rFP, #LO_reg_cop0+36]	/* Count */
	mov	x21, lr
1:
	bl	gen_interupt
	mov	lr, x21
	ldr	rCC, [rFP, #LO_cycle]
	ldr	w0, [rFP, #LO_next_interupt]
	ldr	w1, [rFP, #LO_pending_exception]
	ldr	w2, [rFP, #LO_stop]
	str	w0, [rFP, #LO_last_count]
	sub	rCC, rCC, w0
	cbnz	w2, new_dyna_leave
	cbnz	w1, 2f
	ret
2:
	ldr	w0, [rFP, #LO_pcaddr]
	bl	get_addr_ht
	br	x0
	.size	cc_interrupt, .-cc_interrupt

	.align	2
FUNCTION(fp_exception):
	mov	w2, #0x10000000
0:
	ldr	w1, [rFP, #LO_reg_cop0+48] /* Status */
	mov	w3, #0x80000000
	str	w0, [rFP, #LO_reg_cop0+56] /* EPC */
	orr	w1, w1, #2
	add	w2, w2, #0x2c
	str	w1, [rFP, #LO_reg_cop0+48] /* Status */
	str	w2, [rFP, #LO_reg_cop0+52] /* Cause */
	add	w0, w3, #0x80
	bl	get_addr_ht
	br	x0
	.size	fp_exception, .-fp_exception
	.align	2
FUNCTION(fp_exception_ds):
	mov	w2, #0x90000000 /* Set high bit if delay slot */
	b	0b
	.size	fp_exception_ds, .-fp_exception_ds

	.align	2
FUNCTION(jump_break_ds):
	mov	w0, #0x24
	mov	w1, #1
	b	call_psxException
FUNCTION(jump_break):
	mov	w0, #0x24
	mov	w1, #0
	b	call_psxException
FUNCTION(jump_syscall_ds):
	mov	w0, #0x20
	mov	w1, #1
	b	call_psxException
FUNCTION(jump_syscall):
	mov	w0, #0x20
	mov	w1, #0

call_psxException:
	ldr	w3, [rFP, #LO_last_count]
	str	w2, [rFP, #LO_pcaddr]
	add	rCC, w3, rCC
	str	rCC, [rFP, #LO_cycle]		/* PCSX cycles */
	bl	psxException

	/* note: psxException might do recursive recompiler call from it's HLE code,
	 * so be ready for this */
FUNCTION(jump_to_new_pc):
	ldr	w1, [rFP, #LO_next_interupt]
	ldr	rCC, [rFP, #LO_cycle]
	ldr	w0, [rFP, #LO_pcaddr]
	sub	rCC, rCC, w1
	str	w1, [rFP, #LO_last_count]
	bl	get_addr_ht
	br	x0
	.size	jump_to_new_pc, .-jump_to_new_pc

	/* stack must be aligned by 16, and include space for save_regs() use */
	.align	2
FUNCTION(new_dyna_start):
	stp	x29, x30, [sp, #-SSP_ALL]!
	ldr	w1,  [x0, #LO_next_interupt]
	ldr	w2,  [x0, #LO_cycle]
	stp	x19, x20, [sp, #16*1]
	stp	x21, x22, [sp, #16*2]
	stp	x23, x24, [sp, #16*3]
	stp	x25, x26, [sp, #16*4]
	stp	x27, x28, [sp, #16*5]
	mov	rFP, x0
	ldr	w0,  [rFP, #LO_pcaddr]
	str	w1,  [rFP, #LO_last_count]
	sub	rCC, w2, w1
	bl	get_addr_ht
	br	x0
	.size	new_dyna_start, .-new_dyna_start

	.align	2
FUNCTION(new_dyna_leave):
	ldr	w0,  [rFP, #LO_last_count]
	add	rCC, rCC, w0
	str	rCC, [rFP, #LO_cycle]
	ldp	x19, x20, [sp, #16*1]
	ldp	x21, x22, [sp, #16*2]
	ldp	x23, x24, [sp, #16*3]
	ldp	x25, x26, [sp, #16*4]
	ldp	x27, x28, [sp, #16*5]
	ldp	x29, x30, [sp], #SSP_ALL
	ret
	.size	new_dyna_leave, .-new_dyna_leave

/* --------------------------------------- */

.align	2

.macro memhandler_pre
	/* w0 = adddr/data, x1 = rhandler, w2 = cycles, x3 = whandler */
	ldr	w4, [rFP, #LO_last_count]
	add	w4, w4, w2
	str	w4, [rFP, #LO_cycle]
.endm

.macro memhandler_post
	ldr	w0, [rFP, #LO_next_interupt]
	ldr	w2, [rFP, #LO_cycle]        // memhandlers can modify cc, like dma
	str	w0, [rFP, #LO_last_count]
	sub	w0, w2, w0
.endm

FUNCTION(do_memhandler_pre):
	memhandler_pre
	ret

FUNCTION(do_memhandler_post):
	memhandler_post
	ret

.macro pcsx_read_mem readop tab_shift
	/* w0 = address, x1 = handler_tab, w2 = cycles */
	ubfm	w4, w0, #\tab_shift, #11
	ldr	x3, [x1, w4, uxtw #3]
	adds	x3, x3, x3
	bcs	0f
	\readop	w0, [x3, w4, uxtw #\tab_shift]
	ret
0:
	stp	xzr, x30, [sp, #-16]!
	memhandler_pre
	blr	x3
.endm

FUNCTION(jump_handler_read8):
	add     x1, x1, #0x1000/4*8 + 0x1000/2*8  /* shift to r8 part */
	pcsx_read_mem ldrb, 0
	b	handler_read_end

FUNCTION(jump_handler_read16):
	add     x1, x1, #0x1000/4*8               /* shift to r16 part */
	pcsx_read_mem ldrh, 1
	b	handler_read_end

FUNCTION(jump_handler_read32):
	pcsx_read_mem ldr, 2

handler_read_end:
	ldp	xzr, x30, [sp], #16
	ret

.macro pcsx_write_mem wrtop movop tab_shift
	/* w0 = address, w1 = data, w2 = cycles, x3 = handler_tab */
	ubfm	w4, w0, #\tab_shift, #11
	ldr	x3, [x3, w4, uxtw #3]
	adds	x3, x3, x3
	bcs	0f
	mov	w0, w2                    /* cycle return */
	\wrtop	w1, [x3, w4, uxtw #\tab_shift]
	ret
0:
	stp	xzr, x30, [sp, #-16]!
	str	w0, [rFP, #LO_address]    /* some handlers still need it... */
	\movop	w0, w1
	memhandler_pre
	blr	x3
.endm

FUNCTION(jump_handler_write8):
	add     x3, x3, #0x1000/4*8 + 0x1000/2*8  /* shift to r8 part */
	pcsx_write_mem strb uxtb 0
	b	handler_write_end

FUNCTION(jump_handler_write16):
	add     x3, x3, #0x1000/4*8               /* shift to r16 part */
	pcsx_write_mem strh uxth 1
	b	handler_write_end

FUNCTION(jump_handler_write32):
	pcsx_write_mem str mov 2

handler_write_end:
	memhandler_post
	ldp	xzr, x30, [sp], #16
	ret

FUNCTION(jump_handle_swl):
	/* w0 = address, w1 = data, w2 = cycles */
	ldr	x3, [rFP, #LO_mem_wtab]
	orr	w4, wzr, w0, lsr #12
	ldr	x3, [x3, w4, uxtw #3]
	adds	x3, x3, x3
	bcs	4f
	add	x3, x0, x3
	mov	w0, w2
	tbz	x3, #1, 10f	// & 2
	tbz	x3, #0, 2f	// & 1
3:
	stur	w1, [x3, #-3]
	ret
2:
	lsr	w2, w1, #8
	lsr	w1, w1, #24
	sturh	w2, [x3, #-2]
	strb	w1, [x3]
	ret
10:
	tbz	x3, #0, 0f	// & 1
1:
	lsr	w1, w1, #16
	sturh	w1, [x3, #-1]
	ret
0:
	lsr	w2, w1, #24
	strb	w2, [x3]
	ret
4:
	mov	w0, w2		// todo
	bl	abort
	ret

FUNCTION(jump_handle_swr):
	/* w0 = address, w1 = data, w2 = cycles */
	ldr	x3, [rFP, #LO_mem_wtab]
	orr	w4, wzr, w0, lsr #12
	ldr	x3, [x3, w4, uxtw #3]
	adds	x3, x3, x3
	bcs	4f
	add	x3, x0, x3
	mov	w0, w2
	tbz	x3, #1, 10f	// & 2
	tbz	x3, #0, 2f	// & 1
3:
	strb	w1, [x3]
	ret
2:
	strh	w1, [x3]
	ret
10:
	tbz	x3, #0, 0f	// & 1
1:
	lsr	w2, w1, #8
	strb	w1, [x3]
	sturh	w2, [x3, #1]
	ret
0:
	str	w1, [x3]
	ret
4:
	mov	w0, w2		// todo
	bl	abort
	ret

FUNCTION(call_gteStall):
	/* w0 = op_cycles, w1 = cycles */
	ldr	w2, [rFP, #LO_last_count]
	str	lr, [rFP, #LO_saved_lr]
	add	w1, w1, w2
	str	w1, [rFP, #LO_cycle]
	add	x1, rFP, #LO_psxRegs
	bl	gteCheckStallRaw
	ldr	lr, [rFP, #LO_saved_lr]
	add	rCC, rCC, w0
	ret
Commit	Line	Data
be516ebe	1	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
	2	* linkage_arm.s for PCSX *
	3	* Copyright (C) 2009-2011 Ari64 *
	4	* Copyright (C) 2021 notaz *
	5	* *
	6	* This program is free software; you can redistribute it and/or modify *
	7	* it under the terms of the GNU General Public License as published by *
	8	* the Free Software Foundation; either version 2 of the License, or *
	9	* (at your option) any later version. *
	10	* *
	11	* This program is distributed in the hope that it will be useful, *
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of *
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
	14	* GNU General Public License for more details. *
	15	* *
	16	* You should have received a copy of the GNU General Public License *
	17	* along with this program; if not, write to the *
	18	* Free Software Foundation, Inc., *
	19	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
	20	* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
	21
	22	#include "arm_features.h"
	23	#include "new_dynarec_config.h"
	24	#include "assem_arm64.h"
	25	#include "linkage_offsets.h"
	26
39b71d9a	27	#if (LO_mem_wtab & 7)
	28	#error misligned pointers
	29	#endif
	30
be516ebe	31	.bss
	32	.align 4
	33	.global dynarec_local
	34	.type dynarec_local, %object
	35	.size dynarec_local, LO_dynarec_local_size
	36	dynarec_local:
	37	.space LO_dynarec_local_size
	38
	39	#define DRC_VAR_(name, vname, size_) \
	40	vname = dynarec_local + LO_##name; \
	41	.global vname; \
	42	.type vname, %object; \
	43	.size vname, size_
	44
	45	#define DRC_VAR(name, size_) \
	46	DRC_VAR_(name, ESYM(name), size_)
	47
	48	DRC_VAR(next_interupt, 4)
	49	DRC_VAR(cycle_count, 4)
	50	DRC_VAR(last_count, 4)
	51	DRC_VAR(pending_exception, 4)
	52	DRC_VAR(stop, 4)
687b4580	53	DRC_VAR(branch_target, 4)
be516ebe	54	DRC_VAR(address, 4)
7f94b097	55	DRC_VAR(hack_addr, 4)
be516ebe	56	DRC_VAR(psxRegs, LO_psxRegs_end - LO_psxRegs)
	57
	58	/* psxRegs */
7c3a5182	59	#DRC_VAR(reg, 128)
be516ebe	60	DRC_VAR(lo, 4)
	61	DRC_VAR(hi, 4)
	62	DRC_VAR(reg_cop0, 128)
	63	DRC_VAR(reg_cop2d, 128)
	64	DRC_VAR(reg_cop2c, 128)
	65	DRC_VAR(pcaddr, 4)
	66	#DRC_VAR(code, 4)
	67	#DRC_VAR(cycle, 4)
	68	#DRC_VAR(interrupt, 4)
	69	#DRC_VAR(intCycle, 256)
	70
	71	DRC_VAR(rcnts, 744)
be516ebe	72	DRC_VAR(inv_code_start, 4)
be516ebe	73	DRC_VAR(inv_code_end, 4)
687b4580	74	DRC_VAR(mem_rtab, 8)
	75	DRC_VAR(mem_wtab, 8)
	76	DRC_VAR(psxH_ptr, 8)
	77	DRC_VAR(invc_ptr, 8)
	78	DRC_VAR(zeromem_ptr, 8)
	79	DRC_VAR(scratch_buf_ptr, 8)
37387d8b	80	DRC_VAR(ram_offset, 8)
be516ebe	81	DRC_VAR(mini_ht, 256)
be516ebe	82
	83
	84	.text
	85	.align 2
	86
be516ebe	87	FUNCTION(dyna_linker):
	88	/* r0 = virtual target address */
	89	/* r1 = instruction to patch */
4bdc30ab	90	bl get_addr_ht
4bdc30ab	91	br x0
be516ebe	92	.size dyna_linker, .-dyna_linker
be516ebe	93
be516ebe	94	.align 2
be516ebe	95	FUNCTION(cc_interrupt):
d1e4ebd9	96	ldr w0, [rFP, #LO_last_count]
d1e4ebd9	97	add rCC, w0, rCC
d1e4ebd9	98	str wzr, [rFP, #LO_pending_exception]
d1e4ebd9	99	str rCC, [rFP, #LO_cycle] /* PCSX cycles */
d1e4ebd9	100	# str rCC, [rFP, #LO_reg_cop0+36] /* Count */
d1e4ebd9	101	mov x21, lr
d1e4ebd9	102	1:
	103	bl gen_interupt
	104	mov lr, x21
	105	ldr rCC, [rFP, #LO_cycle]
	106	ldr w0, [rFP, #LO_next_interupt]
	107	ldr w1, [rFP, #LO_pending_exception]
	108	ldr w2, [rFP, #LO_stop]
	109	str w0, [rFP, #LO_last_count]
	110	sub rCC, rCC, w0
	111	cbnz w2, new_dyna_leave
	112	cbnz w1, 2f
	113	ret
	114	2:
	115	ldr w0, [rFP, #LO_pcaddr]
	116	bl get_addr_ht
	117	br x0
be516ebe	118	.size cc_interrupt, .-cc_interrupt
be516ebe	119
be516ebe	120	.align 2
	121	FUNCTION(fp_exception):
	122	mov w2, #0x10000000
	123	0:
81dbbf4c	124	ldr w1, [rFP, #LO_reg_cop0+48] /* Status */
be516ebe	125	mov w3, #0x80000000
81dbbf4c	126	str w0, [rFP, #LO_reg_cop0+56] /* EPC */
be516ebe	127	orr w1, w1, #2
be516ebe	128	add w2, w2, #0x2c
81dbbf4c	129	str w1, [rFP, #LO_reg_cop0+48] /* Status */
81dbbf4c	130	str w2, [rFP, #LO_reg_cop0+52] /* Cause */
be516ebe	131	add w0, w3, #0x80
	132	bl get_addr_ht
	133	br x0
	134	.size fp_exception, .-fp_exception
	135	.align 2
	136	FUNCTION(fp_exception_ds):
	137	mov w2, #0x90000000 /* Set high bit if delay slot */
	138	b 0b
	139	.size fp_exception_ds, .-fp_exception_ds
	140
	141	.align 2
d1150cd6	142	FUNCTION(jump_break_ds):
	143	mov w0, #0x24
	144	mov w1, #1
	145	b call_psxException
	146	FUNCTION(jump_break):
	147	mov w0, #0x24
	148	mov w1, #0
	149	b call_psxException
	150	FUNCTION(jump_syscall_ds):
	151	mov w0, #0x20
	152	mov w1, #1
	153	b call_psxException
be516ebe	154	FUNCTION(jump_syscall):
d1150cd6	155	mov w0, #0x20
	156	mov w1, #0
	157
	158	call_psxException:
	159	ldr w3, [rFP, #LO_last_count]
	160	str w2, [rFP, #LO_pcaddr]
	161	add rCC, w3, rCC
	162	str rCC, [rFP, #LO_cycle] /* PCSX cycles */
	163	bl psxException
be516ebe	164
be516ebe	165	/* note: psxException might do recursive recompiler call from it's HLE code,
be516ebe	166	* so be ready for this */
3968e69e	167	FUNCTION(jump_to_new_pc):
81dbbf4c	168	ldr w1, [rFP, #LO_next_interupt]
	169	ldr rCC, [rFP, #LO_cycle]
	170	ldr w0, [rFP, #LO_pcaddr]
3968e69e	171	sub rCC, rCC, w1
81dbbf4c	172	str w1, [rFP, #LO_last_count]
be516ebe	173	bl get_addr_ht
be516ebe	174	br x0
3968e69e	175	.size jump_to_new_pc, .-jump_to_new_pc
be516ebe	176
687b4580	177	/* stack must be aligned by 16, and include space for save_regs() use */
be516ebe	178	.align 2
be516ebe	179	FUNCTION(new_dyna_start):
687b4580	180	stp x29, x30, [sp, #-SSP_ALL]!
be516ebe	181	ldr w1, [x0, #LO_next_interupt]
	182	ldr w2, [x0, #LO_cycle]
	183	stp x19, x20, [sp, #16*1]
	184	stp x21, x22, [sp, #16*2]
	185	stp x23, x24, [sp, #16*3]
	186	stp x25, x26, [sp, #16*4]
	187	stp x27, x28, [sp, #16*5]
	188	mov rFP, x0
	189	ldr w0, [rFP, #LO_pcaddr]
	190	str w1, [rFP, #LO_last_count]
	191	sub rCC, w2, w1
	192	bl get_addr_ht
	193	br x0
	194	.size new_dyna_start, .-new_dyna_start
	195
	196	.align 2
	197	FUNCTION(new_dyna_leave):
	198	ldr w0, [rFP, #LO_last_count]
	199	add rCC, rCC, w0
	200	str rCC, [rFP, #LO_cycle]
	201	ldp x19, x20, [sp, #16*1]
	202	ldp x21, x22, [sp, #16*2]
	203	ldp x23, x24, [sp, #16*3]
	204	ldp x25, x26, [sp, #16*4]
	205	ldp x27, x28, [sp, #16*5]
687b4580	206	ldp x29, x30, [sp], #SSP_ALL
be516ebe	207	ret
	208	.size new_dyna_leave, .-new_dyna_leave
	209
	210	/* --------------------------------------- */
	211
	212	.align 2
	213
d1e4ebd9	214	.macro memhandler_pre
	215	/* w0 = adddr/data, x1 = rhandler, w2 = cycles, x3 = whandler */
	216	ldr w4, [rFP, #LO_last_count]
	217	add w4, w4, w2
	218	str w4, [rFP, #LO_cycle]
	219	.endm
	220
	221	.macro memhandler_post
9b9af0d1	222	ldr w0, [rFP, #LO_next_interupt]
	223	ldr w2, [rFP, #LO_cycle] // memhandlers can modify cc, like dma
	224	str w0, [rFP, #LO_last_count]
	225	sub w0, w2, w0
d1e4ebd9	226	.endm
	227
	228	FUNCTION(do_memhandler_pre):
	229	memhandler_pre
	230	ret
	231
	232	FUNCTION(do_memhandler_post):
	233	memhandler_post
	234	ret
	235
	236	.macro pcsx_read_mem readop tab_shift
	237	/* w0 = address, x1 = handler_tab, w2 = cycles */
d1e4ebd9	238	ubfm w4, w0, #\tab_shift, #11
	239	ldr x3, [x1, w4, uxtw #3]
	240	adds x3, x3, x3
	241	bcs 0f
	242	\readop w0, [x3, w4, uxtw #\tab_shift]
	243	ret
	244	0:
3968e69e	245	stp xzr, x30, [sp, #-16]!
d1e4ebd9	246	memhandler_pre
	247	blr x3
	248	.endm
	249
be516ebe	250	FUNCTION(jump_handler_read8):
3968e69e	251	add x1, x1, #0x1000/48 + 0x1000/28 /* shift to r8 part */
d1e4ebd9	252	pcsx_read_mem ldrb, 0
d1e4ebd9	253	b handler_read_end
be516ebe	254
be516ebe	255	FUNCTION(jump_handler_read16):
3968e69e	256	add x1, x1, #0x1000/48 / shift to r16 part */
d1e4ebd9	257	pcsx_read_mem ldrh, 1
d1e4ebd9	258	b handler_read_end
be516ebe	259
be516ebe	260	FUNCTION(jump_handler_read32):
d1e4ebd9	261	pcsx_read_mem ldr, 2
	262
	263	handler_read_end:
	264	ldp xzr, x30, [sp], #16
	265	ret
	266
	267	.macro pcsx_write_mem wrtop movop tab_shift
	268	/* w0 = address, w1 = data, w2 = cycles, x3 = handler_tab */
d1e4ebd9	269	ubfm w4, w0, #\tab_shift, #11
d1e4ebd9	270	ldr x3, [x3, w4, uxtw #3]
d1e4ebd9	271	adds x3, x3, x3
d1e4ebd9	272	bcs 0f
	273	mov w0, w2 /* cycle return */
	274	\wrtop w1, [x3, w4, uxtw #\tab_shift]
	275	ret
	276	0:
3968e69e	277	stp xzr, x30, [sp, #-16]!
3968e69e	278	str w0, [rFP, #LO_address] /* some handlers still need it... */
d1e4ebd9	279	\movop w0, w1
	280	memhandler_pre
	281	blr x3
	282	.endm
be516ebe	283
be516ebe	284	FUNCTION(jump_handler_write8):
3968e69e	285	add x3, x3, #0x1000/48 + 0x1000/28 /* shift to r8 part */
d1e4ebd9	286	pcsx_write_mem strb uxtb 0
d1e4ebd9	287	b handler_write_end
be516ebe	288
be516ebe	289	FUNCTION(jump_handler_write16):
3968e69e	290	add x3, x3, #0x1000/48 / shift to r16 part */
d1e4ebd9	291	pcsx_write_mem strh uxth 1
d1e4ebd9	292	b handler_write_end
be516ebe	293
be516ebe	294	FUNCTION(jump_handler_write32):
d1e4ebd9	295	pcsx_write_mem str mov 2
be516ebe	296
d1e4ebd9	297	handler_write_end:
	298	memhandler_post
	299	ldp xzr, x30, [sp], #16
	300	ret
be516ebe	301
be516ebe	302	FUNCTION(jump_handle_swl):
3968e69e	303	/* w0 = address, w1 = data, w2 = cycles */
81dbbf4c	304	ldr x3, [rFP, #LO_mem_wtab]
48ce2528	305	orr w4, wzr, w0, lsr #12
3968e69e	306	ldr x3, [x3, w4, uxtw #3]
	307	adds x3, x3, x3
	308	bcs 4f
	309	add x3, x0, x3
	310	mov w0, w2
	311	tbz x3, #1, 10f // & 2
	312	tbz x3, #0, 2f // & 1
	313	3:
	314	stur w1, [x3, #-3]
	315	ret
	316	2:
	317	lsr w2, w1, #8
	318	lsr w1, w1, #24
	319	sturh w2, [x3, #-2]
	320	strb w1, [x3]
	321	ret
	322	10:
	323	tbz x3, #0, 0f // & 1
	324	1:
	325	lsr w1, w1, #16
	326	sturh w1, [x3, #-1]
	327	ret
	328	0:
	329	lsr w2, w1, #24
	330	strb w2, [x3]
	331	ret
	332	4:
	333	mov w0, w2 // todo
be516ebe	334	bl abort
3968e69e	335	ret
be516ebe	336
be516ebe	337	FUNCTION(jump_handle_swr):
3968e69e	338	/* w0 = address, w1 = data, w2 = cycles */
81dbbf4c	339	ldr x3, [rFP, #LO_mem_wtab]
48ce2528	340	orr w4, wzr, w0, lsr #12
3968e69e	341	ldr x3, [x3, w4, uxtw #3]
	342	adds x3, x3, x3
	343	bcs 4f
	344	add x3, x0, x3
	345	mov w0, w2
	346	tbz x3, #1, 10f // & 2
	347	tbz x3, #0, 2f // & 1
	348	3:
	349	strb w1, [x3]
	350	ret
	351	2:
	352	strh w1, [x3]
	353	ret
	354	10:
	355	tbz x3, #0, 0f // & 1
	356	1:
	357	lsr w2, w1, #8
	358	strb w1, [x3]
	359	sturh w2, [x3, #1]
	360	ret
	361	0:
	362	str w1, [x3]
	363	ret
	364	4:
	365	mov w0, w2 // todo
be516ebe	366	bl abort
3968e69e	367	ret
be516ebe	368
81dbbf4c	369	FUNCTION(call_gteStall):
	370	/* w0 = op_cycles, w1 = cycles */
	371	ldr w2, [rFP, #LO_last_count]
	372	str lr, [rFP, #LO_saved_lr]
	373	add w1, w1, w2
	374	str w1, [rFP, #LO_cycle]
	375	add x1, rFP, #LO_psxRegs
	376	bl gteCheckStallRaw
	377	ldr lr, [rFP, #LO_saved_lr]
	378	add rCC, rCC, w0
	379	ret
	380