2019-09-03 21:33:11 +02:00
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.include "asm/macros/function.inc"
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.include "constants/gba_constants.inc"
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.syntax unified
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.text
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.arm
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.align 2, 0
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.global Init
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Init:
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2020-07-17 00:15:49 +02:00
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mov r0, #PSR_IRQ_MODE
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2019-09-03 21:33:11 +02:00
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msr cpsr_cf, r0
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ldr sp, sp_irq
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2020-07-17 00:15:49 +02:00
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mov r0, #PSR_SYS_MODE
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2019-09-03 21:33:11 +02:00
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msr cpsr_cf, r0
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ldr sp, sp_sys
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ldr r1, =INTR_VECTOR
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ldr r0, =IntrMain
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str r0, [r1]
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ldr r1, =AgbMain + 1
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mov lr, pc
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bx r1
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b Init
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.align 2, 0
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sp_sys: .word IWRAM_END - 0x100
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sp_irq: .word IWRAM_END - 0x60
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.pool
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.size Init, .-Init
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.arm
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.align 2, 0
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.global IntrMain
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IntrMain: @ 0x2010048
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2020-07-17 00:15:49 +02:00
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mov ip, #REG_BASE
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add r3, ip, #OFFSET_REG_IE
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2019-09-03 21:33:11 +02:00
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ldr r2, [r3]
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and r1, r2, r2, lsr #16
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mov r2, #0
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ands r0, r1, #0x2000
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strbne r0, [r3, #-0x17c]
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_02010064:
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bne _02010064
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ands r0, r1, #0xc0
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bne _020100DC
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add r2, r2, #4
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ands r0, r1, #1
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strhne r0, [ip, #-8]
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bne _020100DC
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add r2, r2, #4
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ands r0, r1, #2
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bne _020100DC
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add r2, r2, #4
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ands r0, r1, #4
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bne _020100DC
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add r2, r2, #4
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ands r0, r1, #0x100
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bne _020100DC
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add r2, r2, #4
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ands r0, r1, #0x200
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bne _020100DC
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add r2, r2, #4
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ands r0, r1, #0x400
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bne _020100DC
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add r2, r2, #4
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ands r0, r1, #0x800
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bne _020100DC
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add r2, r2, #4
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ands r0, r1, #0x1000
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bne _020100DC
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add r2, r2, #4
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ands r0, r1, #8
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_020100DC:
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strh r0, [r3, #2]
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ldr r1, =gIntrTable
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add r1, r1, r2
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ldr r0, [r1]
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bx r0
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.pool
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.size IntrMain, .-IntrMain
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