/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * Mupen64plus - linkage_arm.s *
+ * linkage_arm.s for PCSX *
* Copyright (C) 2009-2010 Ari64 *
+ * Copyright (C) 2010 GraÅžvydas "notaz" Ignotas *
* *
* 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 *
.global memory_map
/* psx */
.global psxRegs
+ .global nd_pcsx_io
+ .global psxH_ptr
.bss
.align 4
FCR31 = FCR0 + 4
.type FCR31, %object
.size FCR31, 4
-reg = FCR31 + 4
+psxRegs = FCR31 + 4
/* psxRegs */
-psxRegs = reg
+ .type psxRegs, %object
+ .size psxRegs, psxRegs_end-psxRegs
+reg = psxRegs
.type reg, %object
.size reg, 128
- .size psxRegs, psxRegs_end-psxRegs
lo = reg + 128
.type lo, %object
.size lo, 4
.size interrupt, 4
intCycle = interrupt + 4
.type intCycle, %object
- .size intCycle, 128
-psxRegs_end = intCycle + 128
+ .size intCycle, 256
+psxRegs_end = intCycle + 256
+
+/* nd_pcsx_io */
+nd_pcsx_io = psxRegs_end
+ .type nd_pcsx_io, %object
+ .size nd_pcsx_io, nd_pcsx_io_end-nd_pcsx_io
+tab_read8 = nd_pcsx_io
+ .type tab_read8, %object
+ .size tab_read8, 4
+tab_read16 = tab_read8 + 4
+ .type tab_read16, %object
+ .size tab_read16, 4
+tab_read32 = tab_read16 + 4
+ .type tab_read32, %object
+ .size tab_read32, 4
+tab_write8 = tab_read32 + 4
+ .type tab_write8, %object
+ .size tab_write8, 4
+tab_write16 = tab_write8 + 4
+ .type tab_write16, %object
+ .size tab_write16, 4
+tab_write32 = tab_write16 + 4
+ .type tab_write32, %object
+ .size tab_write32, 4
+spu_readf = tab_write32 + 4
+ .type spu_readf, %object
+ .size spu_readf, 4
+spu_writef = spu_readf + 4
+ .type spu_writef, %object
+ .size spu_writef, 4
+nd_pcsx_io_end = spu_writef + 4
-align0 = psxRegs_end /* just for alignment */
+psxH_ptr = nd_pcsx_io_end
+ .type psxH_ptr, %object
+ .size psxH_ptr, 4
+align0 = psxH_ptr + 4 /* just for alignment */
.type align0, %object
- .size align0, 8
-branch_target = align0 + 8
+ .size align0, 4
+branch_target = align0 + 4
.type branch_target, %object
.size branch_target, 4
mini_ht = branch_target + 4
.word dynarec_local
.size new_dyna_start, .-new_dyna_start
- .align 2
- .global write_rdram_new
- .type write_rdram_new, %function
-write_rdram_new:
- ldr r2, [fp, #address-dynarec_local]
- ldr r0, [fp, #word-dynarec_local]
- str r0, [r2]
- b .E12
- .size write_rdram_new, .-write_rdram_new
- .align 2
- .global write_rdramb_new
- .type write_rdramb_new, %function
-write_rdramb_new:
- ldr r2, [fp, #address-dynarec_local]
- ldrb r0, [fp, #byte-dynarec_local]
- eor r2, r2, #3
- strb r0, [r2]
- b .E12
- .size write_rdramb_new, .-write_rdramb_new
- .align 2
- .global write_rdramh_new
- .type write_rdramh_new, %function
-write_rdramh_new:
- ldr r2, [fp, #address-dynarec_local]
- ldrh r0, [fp, #hword-dynarec_local]
- eor r2, r2, #2
- strh r0, [r2]
- b .E12
- .size write_rdramh_new, .-write_rdramh_new
+/* --------------------------------------- */
- .align 2
- .global do_invalidate
- .type do_invalidate, %function
-do_invalidate:
- ldr r2, [fp, #address-dynarec_local]
-.E12:
- ldr r1, [fp, #invc_ptr-dynarec_local]
- lsr r0, r2, #12
- ldrb r2, [r1, r0]
- tst r2, r2
- beq invalidate_block
+.align 2
+.global ari_read_ram8
+.global ari_read_ram16
+.global ari_read_ram32
+.global ari_read_ram_mirror8
+.global ari_read_ram_mirror16
+.global ari_read_ram_mirror32
+.global ari_write_ram8
+.global ari_write_ram16
+.global ari_write_ram32
+.global ari_write_ram_mirror8
+.global ari_write_ram_mirror16
+.global ari_write_ram_mirror32
+.global ari_read_bios8
+.global ari_read_bios16
+.global ari_read_bios32
+.global ari_read_io8
+.global ari_read_io16
+.global ari_read_io32
+.global ari_write_io8
+.global ari_write_io16
+.global ari_write_io32
+
+.macro ari_read_ram bic_const op
+ ldr r0, [fp, #address-dynarec_local]
+.if \bic_const
+ bic r0, r0, #\bic_const
+.endif
+ \op r0, [r0]
+ str r0, [fp, #readmem_dword-dynarec_local]
mov pc, lr
- .size do_invalidate, .-do_invalidate
+.endm
- .align 2
- .global read_nomem_new
- .type read_nomem_new, %function
-/*read_nomem_new:*/
-read_nomemb_new:
-read_nomemh_new:
-read_nomemd_new:
- /* should never happen */
- b read_nomem_new
-/*
- ldr r2, [fp, #address-dynarec_local]
- add r12, fp, #memory_map-dynarec_local
- lsr r0, r2, #12
- ldr r12, [r12, r0, lsl #2]
- mov r1, #8
- tst r12, r12
- bmi tlb_exception
- ldr r0, [r2, r12, lsl #2]
+ari_read_ram8:
+ ari_read_ram 0, ldrb
+
+ari_read_ram16:
+ ari_read_ram 1, ldrh
+
+ari_read_ram32:
+ ari_read_ram 3, ldr
+
+.macro ari_read_ram_mirror mvn_const, op
+ ldr r0, [fp, #address-dynarec_local]
+ mvn r1, #\mvn_const
+ and r0, r1, lsr #11
+ orr r0, r0, #1<<31
+ \op r0, [r0]
str r0, [fp, #readmem_dword-dynarec_local]
mov pc, lr
-*/
- .size read_nomem_new, .-read_nomem_new
-/*
- .align 2
- .global read_nomemb_new
- .type read_nomemb_new, %function
-write_nomem_new:
- str r3, [fp, #24]
- str lr, [fp, #28]
- bl do_invalidate
- ldr r2, [fp, #address-dynarec_local]
- add r12, fp, #memory_map-dynarec_local
- ldr lr, [fp, #28]
- lsr r0, r2, #12
- ldr r3, [fp, #24]
- ldr r12, [r12, r0, lsl #2]
- mov r1, #0xc
- tst r12, #0x40000000
- bne tlb_exception
- ldr r0, [fp, #word-dynarec_local]
- str r0, [r2, r12, lsl #2]
+.endm
+
+ari_read_ram_mirror8:
+ ari_read_ram_mirror 0, ldrb
+
+ari_read_ram_mirror16:
+ ari_read_ram_mirror (1<<11), ldrh
+
+ari_read_ram_mirror32:
+ ari_read_ram_mirror (3<<11), ldr
+
+/* invalidation is already taken care of by the caller */
+.macro ari_write_ram bic_const var op
+ ldr r0, [fp, #address-dynarec_local]
+ ldr r1, [fp, #\var-dynarec_local]
+.if \bic_const
+ bic r0, r0, #\bic_const
+.endif
+ \op r1, [r0]
mov pc, lr
- .size write_nomem_new, .-write_nomem_new
+.endm
- .align 2
- .global write_nomemb_new
- .type write_nomemb_new, %function
-write_nomemb_new:
- str r3, [fp, #24]
- str lr, [fp, #28]
- bl do_invalidate
- ldr r2, [fp, #address-dynarec_local]
- add r12, fp, #memory_map-dynarec_local
- ldr lr, [fp, #28]
- lsr r0, r2, #12
- ldr r3, [fp, #24]
- ldr r12, [r12, r0, lsl #2]
- mov r1, #0xc
- tst r12, #0x40000000
- bne tlb_exception
- eor r2, r2, #3
- ldrb r0, [fp, #byte-dynarec_local]
- strb r0, [r2, r12, lsl #2]
+ari_write_ram8:
+ ari_write_ram 0, byte, strb
+
+ari_write_ram16:
+ ari_write_ram 1, hword, strh
+
+ari_write_ram32:
+ ari_write_ram 3, word, str
+
+.macro ari_write_ram_mirror mvn_const var op
+ ldr r0, [fp, #address-dynarec_local]
+ mvn r3, #\mvn_const
+ ldr r1, [fp, #\var-dynarec_local]
+ and r0, r3, lsr #11
+ ldr r2, [fp, #invc_ptr-dynarec_local]
+ orr r0, r0, #1<<31
+ ldrb r2, [r2, r0, lsr #12]
+ \op r1, [r0]
+ tst r2, r2
+ movne pc, lr
+ lsr r0, r0, #12
+ b invalidate_block
+.endm
+
+ari_write_ram_mirror8:
+ ari_write_ram_mirror 0, byte, strb
+
+ari_write_ram_mirror16:
+ ari_write_ram_mirror (1<<11), hword, strh
+
+ari_write_ram_mirror32:
+ ari_write_ram_mirror (3<<11), word, str
+
+
+.macro ari_read_bios_mirror bic_const op
+ ldr r0, [fp, #address-dynarec_local]
+ orr r0, r0, #0x80000000
+ bic r0, r0, #(0x20000000|\bic_const) @ map to 0x9fc...
+ \op r0, [r0]
+ str r0, [fp, #readmem_dword-dynarec_local]
mov pc, lr
- .size write_nomemb_new, .-write_nomemb_new
+.endm
- .align 2
- .global write_nomemh_new
- .type write_nomemh_new, %function
-write_nomemh_new:
- str r3, [fp, #24]
- str lr, [fp, #28]
- bl do_invalidate
- ldr r2, [fp, #address-dynarec_local]
- add r12, fp, #memory_map-dynarec_local
- ldr lr, [fp, #28]
- lsr r0, r2, #12
- ldr r3, [fp, #24]
- ldr r12, [r12, r0, lsl #2]
- mov r1, #0xc
- lsls r12, #2
- bcs tlb_exception
- eor r2, r2, #2
- ldrh r0, [fp, #hword-dynarec_local]
- strh r0, [r2, r12]
+ari_read_bios8:
+ ari_read_bios_mirror 0, ldrb
+
+ari_read_bios16:
+ ari_read_bios_mirror 1, ldrh
+
+ari_read_bios32:
+ ari_read_bios_mirror 3, ldr
+
+
+@ for testing
+.macro ari_read_io_old tab_shift
+ str lr, [sp, #-8]! @ EABI alignment..
+.if \tab_shift == 0
+ bl psxHwRead32
+.endif
+.if \tab_shift == 1
+ bl psxHwRead16
+.endif
+.if \tab_shift == 2
+ bl psxHwRead8
+.endif
+ str r0, [fp, #readmem_dword-dynarec_local]
+ ldr pc, [sp], #8
+.endm
+
+.macro ari_read_io readop mem_tab tab_shift
+ ldr r0, [fp, #address-dynarec_local]
+ ldr r1, [fp, #psxH_ptr-dynarec_local]
+.if \tab_shift == 0
+ bic r0, r0, #3
+.endif
+.if \tab_shift == 1
+ bic r0, r0, #1
+.endif
+ bic r2, r0, #0x1f800000
+ ldr r12,[fp, #\mem_tab-dynarec_local]
+ subs r3, r2, #0x1000
+ blo 2f
+@ ari_read_io_old \tab_shift
+ cmp r3, #0x880
+ bhs 1f
+ ldr r12,[r12, r3, lsl #\tab_shift]
+ tst r12,r12
+ beq 2f
+0:
+ str lr, [sp, #-8]! @ EABI alignment..
+ blx r12
+ str r0, [fp, #readmem_dword-dynarec_local]
+ ldr pc, [sp], #8
+
+1:
+.if \tab_shift == 1 @ read16
+ cmp r2, #0x1c00
+ blo 2f
+ cmp r2, #0x1e00
+ bhs 2f
+ ldr r12,[fp, #spu_readf-dynarec_local]
+ b 0b
+.endif
+2:
+ @ no handler, just read psxH
+ \readop r0, [r1, r2]
+ str r0, [fp, #readmem_dword-dynarec_local]
mov pc, lr
- .size write_nomemh_new, .-write_nomemh_new
-*/
- .align 2
- .global breakpoint
- .type breakpoint, %function
-breakpoint:
- /* Set breakpoint here for debugging */
+.endm
+
+ari_read_io8:
+ ari_read_io ldrb, tab_read8, 2
+
+ari_read_io16:
+ ari_read_io ldrh, tab_read16, 1
+
+ari_read_io32:
+ ari_read_io ldr, tab_read32, 0
+
+.macro ari_write_io_old tab_shift
+.if \tab_shift == 0
+ b psxHwWrite32
+.endif
+.if \tab_shift == 1
+ b psxHwWrite16
+.endif
+.if \tab_shift == 2
+ b psxHwWrite8
+.endif
+.endm
+
+.macro ari_write_io opvl opst var mem_tab tab_shift
+ ldr r0, [fp, #address-dynarec_local]
+ \opvl r1, [fp, #\var-dynarec_local]
+.if \tab_shift == 0
+ bic r0, r0, #3
+.endif
+.if \tab_shift == 1
+ bic r0, r0, #1
+.endif
+ bic r2, r0, #0x1f800000
+ ldr r12,[fp, #\mem_tab-dynarec_local]
+ subs r3, r2, #0x1000
+ blo 0f
+@ ari_write_io_old \tab_shift
+ cmp r3, #0x880
+ bhs 1f
+ ldr r12,[r12, r3, lsl #\tab_shift]
+ mov r0, r1
+ tst r12,r12
+ bxne r12
+0:
+ ldr r3, [fp, #psxH_ptr-dynarec_local]
+ \opst r1, [r2, r3]
+ mov pc, lr
+1:
+.if \tab_shift == 1 @ write16
+ cmp r2, #0x1c00
+ blo 0b
+ cmp r2, #0x1e00
+ ldrlo pc, [fp, #spu_writef-dynarec_local]
+ nop
+.endif
+ b 0b
+.endm
+
+ari_write_io8:
+ @ PCSX always writes to psxH, so do we for consistency
+ ldr r0, [fp, #address-dynarec_local]
+ ldr r3, [fp, #psxH_ptr-dynarec_local]
+ ldrb r1, [fp, #byte-dynarec_local]
+ bic r2, r0, #0x1f800000
+ ldr r12,[fp, #tab_write8-dynarec_local]
+ strb r1, [r2, r3]
+ subs r3, r2, #0x1000
+ movlo pc, lr
+@ ari_write_io_old 2
+ cmp r3, #0x880
+ movhs pc, lr
+ ldr r12,[r12, r3, lsl #2]
+ mov r0, r1
+ tst r12,r12
+ bxne r12
mov pc, lr
- .size breakpoint, .-breakpoint
- .section .note.GNU-stack,"",%progbits
+
+ari_write_io16:
+ ari_write_io ldrh, strh, hword, tab_write16, 1
+
+ari_write_io32:
+ ari_write_io ldr, str, word, tab_write32, 0
+
+@ vim:filetype=armasm
notaz.gp2x.de / pcsx_rearmed.git / blobdiff