ninjdai/pokeemerald
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pokeemerald/asm/crt0.s

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4.0 KiB
ArmAsm
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.s -> .inc
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.include "constants/gba_constants.inc"
make asm compatible with stock gas
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.syntax unified
.global Start
.text
.arm
Start: @ 8000000
partially comment GameCube multi-boot library
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b Init
.s -> .inc
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.include "asm/rom_header.inc"
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convert comments (; -> @)
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@ 80000C0
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.word 0
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.global GPIOPortData
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GPIOPortData: @ 80000C4
Extract baserom calls from files Extract calls from crt0.s, bard_music.s, battle_4.s
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.2byte 0
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.global GPIOPortDirection
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GPIOPortDirection: @ 80000C6
Extract baserom calls from files Extract calls from crt0.s, bard_music.s, battle_4.s
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.2byte 0
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.global GPIOPortReadEnable
GPIOPortReadEnable: @ 80000C8
Extract baserom calls from files Extract calls from crt0.s, bard_music.s, battle_4.s
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.2byte 0
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Extract baserom calls from files Extract calls from crt0.s, bard_music.s, battle_4.s
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@ 80000CA
.2byte 0
@ 80000CC
.space 0x34
.4byte 3
.4byte 2
.ascii "pokemon emerald version"
.space 9
.4byte gMonFrontPicTable
.4byte gMonBackPicTable
.4byte gMonPaletteTable
.4byte gMonShinyPaletteTable
.4byte gMonIconTable
.4byte gMonIconPaletteIndices
.4byte gMonIconPaletteTable
.4byte gSpeciesNames
.4byte gMoveNames
.4byte gDecorations
.4byte 0x00001270, 0x0000139c, 0x00000018, 0x00000988
.4byte 0x00003b24, 0x00000046, 0x000008e4, 0x000008ac
.4byte 0x00000182
.byte 0x07, 0x0a, 0x0a, 0x0a, 0x0c, 0x0c, 0x06, 0x0c
.byte 0x06, 0x10, 0x12, 0x0c, 0x0f, 0x0b, 0x01, 0x08
.4byte 0x0000000c, 0x00000f2c, 0x00003d88, 0x00000234
.4byte 0x00000238, 0x00000009, 0x0000000a, 0x00000000
.4byte 0x00000008, 0x00000ca8, 0x00000ca8, 0x000031c7
.4byte 0x000031b3, 0x00000000
.4byte gBaseStats
.4byte gAbilityNames
.4byte gAbilityDescriptionPointers
.4byte gItems
.4byte gBattleMoves
move pokeball data to rom
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.4byte gBallSpriteSheets
.4byte gBallSpritePalettes
Extract baserom calls from files Extract calls from crt0.s, bard_music.s, battle_4.s
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.4byte 0x000000a8, 0x00000864, 0x0000089b
.byte 0x1e, 0x1e, 0x10, 0x40
.4byte 0x0000322e, 0x00000498, 0x000031a8, 0x000031f8
.4byte 0x00000034, 0x00000000, 0x00000000
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.arm
.align 2, 0
.global Init
convert comments (; -> @)
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Init: @ 8000204
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mov r0, PSR_IRQ_MODE
msr cpsr_cf, r0
ldr sp, sp_irq
mov r0, PSR_SYS_MODE
msr cpsr_cf, r0
ldr sp, sp_sys
ldr r1, =INTR_VECTOR
begin decompiling main.s
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adr r0, IntrMain
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str r0, [r1]
begin decompiling main.s
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ldr r1, =AgbMain + 1
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mov lr, pc
bx r1
b Init
.align 2, 0
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sp_sys: .word IWRAM_END - 0x1c0
sp_irq: .word IWRAM_END - 0x60
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.pool
make asm compatible with stock gas
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.arm
.align 2, 0
begin decompiling main.s
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.global IntrMain
IntrMain: @ 8000248
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mov r3, REG_BASE
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add r3, r3, 0x200
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ldr r2, [r3, OFFSET_REG_IE - 0x200]
ldrh r1, [r3, OFFSET_REG_IME - 0x200]
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mrs r0, spsr
stmdb sp!, {r0-r3,lr}
mov r0, 0
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strh r0, [r3, OFFSET_REG_IME - 0x200]
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and r1, r2, r2, lsr 16
mov r12, 0
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ands r0, r1, INTR_FLAG_VCOUNT
begin decompiling main.s
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bne IntrMain_FoundIntr
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add r12, r12, 0x4
mov r0, 0x1
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strh r0, [r3, OFFSET_REG_IME - 0x200]
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ands r0, r1, INTR_FLAG_SERIAL
begin decompiling main.s
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bne IntrMain_FoundIntr
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add r12, r12, 0x4
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ands r0, r1, INTR_FLAG_TIMER3
begin decompiling main.s
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bne IntrMain_FoundIntr
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add r12, r12, 0x4
use more constants in InterruptMain
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ands r0, r1, INTR_FLAG_HBLANK
begin decompiling main.s
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bne IntrMain_FoundIntr
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add r12, r12, 0x4
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ands r0, r1, INTR_FLAG_VBLANK
begin decompiling main.s
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bne IntrMain_FoundIntr
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add r12, r12, 0x4
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ands r0, r1, INTR_FLAG_TIMER0
begin decompiling main.s
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bne IntrMain_FoundIntr
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add r12, r12, 0x4
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ands r0, r1, INTR_FLAG_TIMER1
begin decompiling main.s
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bne IntrMain_FoundIntr
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add r12, r12, 0x4
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ands r0, r1, INTR_FLAG_TIMER2
begin decompiling main.s
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bne IntrMain_FoundIntr
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add r12, r12, 0x4
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ands r0, r1, INTR_FLAG_DMA0
begin decompiling main.s
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bne IntrMain_FoundIntr
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add r12, r12, 0x4
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ands r0, r1, INTR_FLAG_DMA1
begin decompiling main.s
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bne IntrMain_FoundIntr
split out files and add build batch file
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add r12, r12, 0x4
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ands r0, r1, INTR_FLAG_DMA2
begin decompiling main.s
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bne IntrMain_FoundIntr
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add r12, r12, 0x4
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ands r0, r1, INTR_FLAG_DMA3
begin decompiling main.s
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bne IntrMain_FoundIntr
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add r12, r12, 0x4
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ands r0, r1, INTR_FLAG_KEYPAD
begin decompiling main.s
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bne IntrMain_FoundIntr
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add r12, r12, 0x4
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ands r0, r1, INTR_FLAG_GAMEPAK
add I/O register constants
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strbne r0, [r3, OFFSET_REG_SOUNDCNT_X - 0x200]
begin decompiling main.s
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bne . @ spin
IntrMain_FoundIntr:
add I/O register constants
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strh r0, [r3, OFFSET_REG_IF - 0x200]
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bic r2, r2, r0
Begin librfu decompilation
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ldr r0, =gRfuState
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ldr r0, [r0]
ldrb r0, [r0, 0xA]
mov r1, 0x8
mov r0, r1, lsl r0
use more constants in InterruptMain
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orr r0, r0, INTR_FLAG_GAMEPAK
orr r1, r0, INTR_FLAG_SERIAL | INTR_FLAG_TIMER3 | INTR_FLAG_VCOUNT | INTR_FLAG_HBLANK
split out files and add build batch file
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and r1, r1, r2
add I/O register constants
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strh r1, [r3, OFFSET_REG_IE - 0x200]
split out files and add build batch file
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mrs r3, cpsr
use more constants in InterruptMain
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bic r3, r3, PSR_I_BIT | PSR_F_BIT | PSR_MODE_MASK
orr r3, r3, PSR_SYS_MODE
split out files and add build batch file
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msr cpsr_cf, r3
finish decompiling main.c (#17) * partially decompile battle_ai.c up to tai60_unk * nonmatching tai60_unk * decompile more of battle_ai.c * formatting * finish porting battle_ai.c * formatting * decompile up to nonmatching VBlankIntr * finish decompiling main.c * formatting
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ldr r1, =gIntrTable
split out files and add build batch file
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add r1, r1, r12
ldr r0, [r1]
stmdb sp!, {lr}
begin decompiling main.s
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adr lr, IntrMain_RetAddr
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bx r0
begin decompiling main.s
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IntrMain_RetAddr:
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ldmia sp!, {lr}
mrs r3, cpsr
use more constants in InterruptMain
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bic r3, r3, PSR_I_BIT | PSR_F_BIT | PSR_MODE_MASK
orr r3, r3, PSR_I_BIT | PSR_IRQ_MODE
split out files and add build batch file
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msr cpsr_cf, r3
ldmia sp!, {r0-r3,lr}
add I/O register constants
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strh r2, [r3, OFFSET_REG_IE - 0x200]
strh r1, [r3, OFFSET_REG_IME - 0x200]
split out files and add build batch file
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msr spsr_cf, r0
bx lr
.pool
make asm compatible with stock gas
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.align 2, 0 @ Don't pad with nop.
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