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path: root/src/switchblock.S
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.text

#ifndef __MWERKS__
.set r0,0;   .set r1,1;   .set r2,2; .set r3,3;   .set r4,4
.set r5,5;   .set r6,6;   .set r7,7;   .set r8,8;   .set r9,9
.set r10,10; .set r11,11; .set r12,12; .set r13,13; .set r14,14
.set r15,15; .set r16,16; .set r17,17; .set r18,18; .set r19,19
.set r20,20; .set r21,21; .set r22,22; .set r23,23; .set r24,24
.set r25,25; .set r26,26; .set r27,27; .set r28,28; .set r29,29
.set r30,30; .set r31,31; .set f0,0; .set f2,2; .set f3,3
#endif

.align 4
.extern GameMgr
.extern BG_GM_ptr

.global BG_GM_InitRedSwitchFlag_Patch
BG_GM_InitRedSwitchFlag_Patch:
	lis r5, GameMgr@h
	ori r5, r5, GameMgr@l
	lwz r5, 0(r5)

	addis r4, r3, 9
	lbz r0, 0x380(r5)
	stb r0, 0xAA8(r4)
	blr

.global ProcessTileNum_EndPatch
ProcessTileNum_EndPatch:
	lis r5, BG_GM_ptr@h
	ori r5, r5, BG_GM_ptr@l
	lwz r5, 0(r5)
	addis r5, r5, 9
	lbz r5, 0xAA8(r3)

	cmplwi r30, 0x58
	bne not_red
	andi. r3, r5, 1
	beq not_red
	li r3, 0x57
	b ptnReturn
not_red:
	cmplwi r30, 0x5A
	bne not_green
	andi. r3, r5, 2
	beq not_green
	li r3, 0x59
	b ptnReturn
not_green:
	cmplwi r30, 0x56
	bne not_yellow
	andi. r3, r5, 4
	beq not_yellow
	li r3, 0x55
	b ptnReturn
not_yellow:
	cmplwi r30, 0x54
	bne not_blue
	andi. r3, r5, 8
	beq not_blue
	li r3, 0x53
	b ptnReturn
not_blue:
	mr r3, r30
ptnReturn:
	lwz r0, 0x14(r1)
	lwz r31, 0xC(r1)
	lwz r30, 0x8(r1)
	mtlr r0
	addi sp, sp, 0x10
	blr