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.gba
.thumb
.open "pokeleafgreen_rev1.gba", "pokeleafgreen_rev1_roamers.gba", 0x08000000
CREATE_INITIAL_ROAMER_MON_HOOK_ADDR equ 0x08141CEE
CREATE_INITIAL_ROAMER_MON_CONTINUED equ 0x08141D0A
NEW_SUBR_ADDR equ 0x08A80200
; Hook that jumps to our new subroutine
.org CREATE_INITIAL_ROAMER_MON_HOOK_ADDR
bl org() + 8
mov r6, r0
b CREATE_INITIAL_ROAMER_MON_CONTINUED
ldr r2,=#(NEW_SUBR_ADDR + 1)
bx r2
.pool
; New subroutine that pc-relative loads Raikou/Entei/Suicune's IDs into r0.
; Takes the ID of Bulbasaur/Charmander/Squirtle as input via r0.
; We had to write this because the compiler optimized these IDs down to a byte.
.org NEW_SUBR_ADDR
.area 40
push { r7, lr }
mov r1, r0
cmp r1, #0x1
beq @@bulbasaur
cmp r1, #0x4
beq @@charmander
b @@squirtle
@@bulbasaur:
ldr r0,=#0xF4 ; Entei
b @@end
@@charmander:
ldr r0,=#0xF5 ; Suicune
b @@end
@@squirtle:
ldr r0,=#0xF3 ; Raikou
@@end:
pop { r7, pc }
.pool
.endarea
.close
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