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Sets an initial WAITCNT in rsrt0.S (#147)

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Alissa Rao 2021-05-17 11:00:05 -07:00 committed by GitHub
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src/rsrt0.S
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@ -23,6 +23,13 @@ __start:
msr CPSR_c, r0 msr CPSR_c, r0
ldr sp, =0x03007F00 ldr sp, =0x03007F00
@ Sets WAITCNT to the default used by GBA games
@
@ See https://problemkaputt.de/gbatek.htm#gbasystemcontrol for reference.
ldr r0, =0x04000204
ldr r1, =0x4317
str r1, [r0]
@ copy .data and .text_iwram section to IWRAM @ copy .data and .text_iwram section to IWRAM
ldr r0, =__iwram_lma @ source address ldr r0, =__iwram_lma @ source address
ldr r1, =__iwram_start @ destination address ldr r1, =__iwram_start @ destination address