1 files changed, 124 insertions, 0 deletions
diff --git a/arm9/asm/CTRDG_backup.s b/arm9/asm/CTRDG_backup.s
new file mode 100644
index 00000000..952730a2
--- /dev/null
+++ b/arm9/asm/CTRDG_backup.s
@@ -0,0 +1,124 @@
+	.include "asm/macros.inc"
+	.include "global.inc"
+
+    .text
+
+	arm_func_start CTRDG_IdentifyAgbBackup
+CTRDG_IdentifyAgbBackup: ; 0x020DBD50
+	stmdb sp!, {r4-r7,lr}
+	sub sp, sp, #0x4
+	mov r7, r0
+	cmp r7, #0x1
+	mov r0, #0x1
+	bhi _020DBEAC
+	bl OS_GetLockID
+	ldr r1, _020DBED8 ; =0x021D6B0C
+	strh r0, [r1, #0x0]
+	ldrh r0, [r1, #0x0]
+	bl OS_LockCartridge
+	ldr r6, _020DBEDC ; =0x04000204
+	ldr r1, _020DBEE0 ; =0x02103FE4
+	ldrh r3, [r6, #0x0]
+	ldrh r2, [r6, #0x0]
+	ldr r0, _020DBEE4 ; =0x021D6B28
+	and r4, r3, #0x3
+	bic r2, r2, #0x3
+	orr r2, r2, #0x3
+	strh r2, [r6, #0x0]
+	str r1, [r0, #0x0]
+	bl CTRDGi_ReadFlashID
+	ldr r2, _020DBEDC ; =0x04000204
+	mov r6, r0
+	ldrh r1, [r2, #0x0]
+	cmp r7, #0x0
+	ldreq r5, _020DBEE8 ; =0x02103FF4
+	bic r1, r1, #0x3
+	orr r1, r1, r4
+	cmp r7, #0x1
+	ldr r0, _020DBED8 ; =0x021D6B0C
+	strh r1, [r2, #0x0]
+	ldrh r0, [r0, #0x0]
+	ldreq r5, _020DBEEC ; =0x02103FE8
+	bl OS_UnlockCartridge2
+	ldr r2, [r5, #0x0]
+	mov r0, #0x1
+	ldrh r1, [r2, #0x38]
+	cmp r1, #0x0
+	beq _020DBE14
+	and r3, r6, #0xff
+_020DBDF4:
+	ldrh r1, [r2, #0x38]
+	cmp r3, r1
+	moveq r0, #0x0
+	beq _020DBE14
+	ldr r2, [r5, #0x4]!
+	ldrh r1, [r2, #0x38]
+	cmp r1, #0x0
+	bne _020DBDF4
+_020DBE14:
+	ldr r2, [r2, #0x0]
+	ldr r1, _020DBEF0 ; =0x021D6B14
+	ldr r3, _020DBEF4 ; =0x021D6B34
+	str r2, [r1, #0x0]
+	ldr r1, [r5, #0x0]
+	ldr r2, _020DBEF8 ; =0x021D6B2C
+	ldr r4, [r1, #0x4]
+	ldr r1, _020DBEFC ; =0x021D6B18
+	str r4, [r3, #0x0]
+	ldr r3, [r5, #0x0]
+	ldr r6, _020DBF00 ; =0x021D6B1C
+	ldr r3, [r3, #0x8]
+	ldr r4, _020DBF04 ; =0x021D6B30
+	str r3, [r2, #0x0]
+	ldr r2, [r5, #0x0]
+	ldr r3, _020DBF08 ; =0x021D6B24
+	ldr r7, [r2, #0xc]
+	ldr r2, _020DBEE4 ; =0x021D6B28
+	str r7, [r1, #0x0]
+	ldr r7, [r5, #0x0]
+	ldr r1, _020DBF0C ; =0x021D6B20
+	ldr r7, [r7, #0x10]
+	add sp, sp, #0x4
+	str r7, [r6, #0x0]
+	ldr r6, [r5, #0x0]
+	ldr r6, [r6, #0x14]
+	str r6, [r4, #0x0]
+	ldr r4, [r5, #0x0]
+	ldr r4, [r4, #0x18]
+	str r4, [r3, #0x0]
+	ldr r3, [r5, #0x0]
+	ldr r3, [r3, #0x1c]
+	str r3, [r2, #0x0]
+	ldr r2, [r5, #0x0]
+	add r2, r2, #0x20
+	str r2, [r1, #0x0]
+	ldmia sp!, {r4-r7,lr}
+	bx lr
+_020DBEAC:
+	cmp r7, #0x2
+	addne sp, sp, #0x4
+	ldmneia sp!, {r4-r7,lr}
+	bxne lr
+	bl OS_GetLockID
+	ldr r1, _020DBF10 ; =0x021D6B4C
+	strh r0, [r1, #0x0]
+	mov r0, #0x0
+	add sp, sp, #0x4
+	ldmia sp!, {r4-r7,lr}
+	bx lr
+	.balign 4
+_020DBED8: .word 0x021D6B0C
+_020DBEDC: .word 0x04000204
+_020DBEE0: .word 0x02103FE4
+_020DBEE4: .word 0x021D6B28
+_020DBEE8: .word 0x02103FF4
+_020DBEEC: .word 0x02103FE8
+_020DBEF0: .word 0x021D6B14
+_020DBEF4: .word 0x021D6B34
+_020DBEF8: .word 0x021D6B2C
+_020DBEFC: .word 0x021D6B18
+_020DBF00: .word 0x021D6B1C
+_020DBF04: .word 0x021D6B30
+_020DBF08: .word 0x021D6B24
+_020DBF0C: .word 0x021D6B20
+_020DBF10: .word 0x021D6B4C