4cade/src/hw.accel.lc2.a
2021-10-17 21:30:52 -07:00

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;license:MIT
;(c) 2019 by 4am & qkumba
;
; Functions to enable and disable acceleration on various
; Apple II models, cards, and environments
;
; /!\ These live in LC RAM 2 and rely on other code which is also in LC RAM 2. /!\
; (EnableAccelerator and DisableAccelerator are copied into LC2 in 4cade.init.)
; You can call these functions directly if and only if you are already in LC2.
EnableAcceleratorAndSwitchToBank1
jsr EnableAccelerator
bne + ; always taken
DisableAcceleratorAndSwitchToBank1
jsr DisableAccelerator
+ jmp SwitchToBank1