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engine_flag_def: macro
const \1
\1_ADDR EQUS "\2"
\1_BIT EQU \3
endm
engine_flag: macro
dwb \1_ADDR, (1 << \1_BIT)
endm
CheckFlag: macro
ld a, [\1_ADDR]
bit \1_BIT, a
endm
CheckFlagHL: macro
ld hl, \1_ADDR
bit \1_BIT, [hl]
endm
SetFlag: macro
ld hl, \1_ADDR
set \1_BIT, [hl]
endm
ClearFlag: macro
ld hl, \1_ADDR
res \1_BIT, [hl]
endm
CheckFlagForceReuseA: macro
bit \1_BIT, a
endm
CheckFlagForceReuseHL: macro
bit \1_BIT, [hl]
endm
SetFlagForceReuseHL: macro
set \1_BIT, [hl]
endm
ClearFlagForceReuseHL: macro
res \1_BIT, [hl]
endm
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