4cade/src/glue.launch.lc2.a

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;license:MIT
;(c) 2018-9 by 4am & qkumba
;
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; Functions to launch games and self-running demos
;
; /!\ These live in LC RAM 2 and rely on the ProRWTS code which is also in LC RAM 2. /!\
; Code in LC RAM 1 (which is most program code) should call the functions in glue.launch
; which handle bank switching for you.
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LaunchInternal
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ldy #-gStackSize
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- lda $100,y
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sta STACKBASE - $FE + gStackSize,y
; back up stack
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iny
bne -
tsx ; back up stack pointer
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stx STACKPTR + 1
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sty RestoreStackNextTime + 1
; tell |Reenter| to restore the stack and stack pointer
tya
ldy #$18
- sta $bf57,y
dey
bne -
jmp $106 ; jump to pre-launch code