import from github

berry_fix/payload/asm/crt0.s

@@ -0,0 +1,82 @@
+    .include "asm/macros/function.inc"
+	.include "constants/gba_constants.inc"
+
+	.syntax unified
+
+	.text
+
+	.arm
+	.align 2, 0
+	.global Init
+Init:
+	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
+	ldr r0, =IntrMain
+	str r0, [r1]
+	ldr r1, =AgbMain + 1
+	mov lr, pc
+	bx r1
+	b Init
+
+	.align 2, 0
+sp_sys: .word IWRAM_END - 0x100
+sp_irq: .word IWRAM_END - 0x60
+
+	.pool
+	.size Init, .-Init
+
+	.arm
+	.align 2, 0
+	.global IntrMain
+IntrMain: @ 0x2010048
+	mov ip, #REG_BASE
+	add r3, ip, #OFFSET_REG_IE
+	ldr r2, [r3]
+	and r1, r2, r2, lsr #16
+	mov r2, #0
+	ands r0, r1, #0x2000
+	strbne r0, [r3, #-0x17c]
+_02010064:
+	bne _02010064
+	ands r0, r1, #0xc0
+	bne _020100DC
+	add r2, r2, #4
+	ands r0, r1, #1
+	strhne r0, [ip, #-8]
+	bne _020100DC
+	add r2, r2, #4
+	ands r0, r1, #2
+	bne _020100DC
+	add r2, r2, #4
+	ands r0, r1, #4
+	bne _020100DC
+	add r2, r2, #4
+	ands r0, r1, #0x100
+	bne _020100DC
+	add r2, r2, #4
+	ands r0, r1, #0x200
+	bne _020100DC
+	add r2, r2, #4
+	ands r0, r1, #0x400
+	bne _020100DC
+	add r2, r2, #4
+	ands r0, r1, #0x800
+	bne _020100DC
+	add r2, r2, #4
+	ands r0, r1, #0x1000
+	bne _020100DC
+	add r2, r2, #4
+	ands r0, r1, #8
+_020100DC:
+	strh r0, [r3, #2]
+	ldr r1, =gIntrTable
+	add r1, r1, r2
+	ldr r0, [r1]
+	bx r0
+	.pool
+	.size IntrMain, .-IntrMain