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add the conserve battery delay function

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hg-commit-id: db4f8980a3ec
This commit is contained in:
IIMarckus 2010-11-19 23:22:13 -07:00
parent 9b5a97afc2
commit d0c027be62
1 changed files with 18 additions and 1 deletions
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19
pokered.asm
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@ -337,7 +337,24 @@ incbin "baserom.gbc",$39E,$1627 - $39E
.GotBank\@
jp $24FD
INCBIN "baserom.gbc",$1665,$2442 - $1665
INCBIN "baserom.gbc",$1665,$20AF - $1665
ConserveBattery: ; 20AF
; loads 1 into $FFD6 and returns when $FFD6 == 0
; delays by halting to conserve battery power
; XXX what zeroes $FFD6?
ld a,1
ld [$FFD6],a
.halt\@
db $76 ; XXX this is a hack--rgbasm adds a nop after this instr
; even when ints are enabled
ld a,[$FFD6]
and a
jr nz,.halt\@
ret
INCBIN "baserom.gbc",$20BA,$2442 - $20BA
; XXX where is the pointer to this data?
MartInventories: ; 2442
; first byte $FE, next byte # of items, last byte $FF