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Identify JOYP_SGB_MLT_REQ constant
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Rangi42 2025-08-11 16:36:33 -04:00
parent a17b2c580e
commit 33df401392
2 changed files with 7 additions and 4 deletions
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3
constants/misc_constants.asm
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@ -57,3 +57,6 @@ DEF HOF_MASTER_COUNT EQU 200
; card flip ; card flip
DEF CARDFLIP_DECK_SIZE EQU 4 * 6 DEF CARDFLIP_DECK_SIZE EQU 4 * 6
; SGB command MLT_REQ can be used to detect SGB hardware
DEF JOYP_SGB_MLT_REQ EQU %00000011

8
engine/gfx/color.asm
View File

@ -908,8 +908,8 @@ PushSGBBorderPalsAndWait:
call _PushSGBPals call _PushSGBPals
call SGBDelayCycles call SGBDelayCycles
ldh a, [rJOYP] ldh a, [rJOYP]
and $3 and JOYP_SGB_MLT_REQ
cp $3 cp JOYP_SGB_MLT_REQ
jr nz, .carry jr nz, .carry
ld a, JOYP_SGB_ZERO ld a, JOYP_SGB_ZERO
ldh [rJOYP], a ldh [rJOYP], a
@ -936,8 +936,8 @@ endr
call SGBDelayCycles call SGBDelayCycles
call SGBDelayCycles call SGBDelayCycles
ldh a, [rJOYP] ldh a, [rJOYP]
and $3 and JOYP_SGB_MLT_REQ
cp $3 cp JOYP_SGB_MLT_REQ
jr nz, .carry jr nz, .carry
call .FinalPush call .FinalPush
and a and a