2015-07-20 22:59:26 +00:00
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ResetMapBufferEventFlags:: ; 2e50
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2013-09-08 04:19:52 +00:00
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xor a
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ld hl, EventFlags
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ld [hli], a
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ret
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; 2e56
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2015-07-20 22:59:26 +00:00
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ResetBikeFlags:: ; 2e56
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2013-09-08 04:19:52 +00:00
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xor a
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ld hl, BikeFlags
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ld [hli], a
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ld [hl], a
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ret
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; 2e5d
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2015-07-20 22:59:26 +00:00
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ResetFlashIfOutOfCave:: ; 2e5d
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2017-12-24 18:08:38 +00:00
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ld a, [wEnvironment]
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2013-09-08 04:19:52 +00:00
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cp $2
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jr z, .asm_2e69
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cp $1
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jr z, .asm_2e69
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ret
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.asm_2e69
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ld hl, StatusFlags
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res 2, [hl]
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ret
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; 2e6f
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2014-02-02 01:26:39 +00:00
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EventFlagAction:: ; 0x2e6f
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2013-09-08 04:19:52 +00:00
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ld hl, EventFlags
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call FlagAction
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ret
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2014-02-02 01:26:39 +00:00
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FlagAction:: ; 0x2e76
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2013-09-08 04:19:52 +00:00
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; Perform action b on bit de in flag array hl.
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; inputs:
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; b: function
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2017-12-09 05:50:59 +00:00
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; 0 RESET_FLAG clear bit
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; 1 SET_FLAG set bit
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; 2 CHECK_FLAG check bit
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2013-09-08 04:19:52 +00:00
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; de: bit number
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; hl: index within bit table
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; get index within the byte
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ld a, e
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and 7
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; shift de right by three bits (get the index within memory)
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srl d
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rr e
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srl d
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rr e
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srl d
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rr e
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add hl, de
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; implement a decoder
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ld c, 1
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rrca
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jr nc, .one
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rlc c
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.one
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rrca
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jr nc, .two
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rlc c
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rlc c
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.two
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rrca
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jr nc, .three
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|
swap c
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.three
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|
; check b's value: 0, 1, 2
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|
|
ld a, b
|
2017-12-09 05:50:59 +00:00
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|
|
cp SET_FLAG
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|
|
jr c, .clearbit ; RESET_FLAG
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|
|
jr z, .setbit ; SET_FLAG
|
2013-09-08 04:19:52 +00:00
|
|
|
|
|
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|
|
; check bit
|
|
|
|
|
ld a, [hl]
|
|
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|
|
and c
|
|
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|
|
ld c, a
|
|
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|
|
ret
|
|
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|
|
.setbit
|
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|
|
; set bit
|
|
|
|
|
ld a, [hl]
|
|
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|
|
or c
|
|
|
|
|
ld [hl], a
|
|
|
|
|
ret
|
|
|
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|
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|
|
.clearbit
|
|
|
|
|
; clear bit
|
|
|
|
|
ld a, c
|
|
|
|
|
cpl
|
|
|
|
|
and [hl]
|
|
|
|
|
ld [hl], a
|
|
|
|
|
ret
|
|
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|
; 0x2ead
|
|
|
|
|
|
|
|
|
|
|
2015-11-06 19:45:10 +00:00
|
|
|
CheckReceivedDex:: ; 2ead
|
2013-09-08 04:19:52 +00:00
|
|
|
ld de, ENGINE_POKEDEX
|
|
|
|
|
ld b, CHECK_FLAG
|
2017-12-24 17:47:30 +00:00
|
|
|
farcall EngineFlagAction
|
2013-09-08 04:19:52 +00:00
|
|
|
ld a, c
|
|
|
|
|
and a
|
|
|
|
|
ret
|
|
|
|
|
; 2ebb
|
