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Moved 6502-specific implementation of local continuations into a 'sys' folder in order to allow the

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#include "sys/lc.h"

in core/sys/pt.h to find it.
This commit is contained in:
oliverschmidt 2006-12-31 14:26:02 +00:00
parent 859ab1b706
commit 6c4bcfb86f
3 changed files with 1 additions and 53 deletions
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30
cpu/6502/sys/lc-asm.S Normal file
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@ -0,0 +1,30 @@
;---------------------------------------------------------------------
.importzp ptr1
.export _lc_set
.export _lc_resume
;---------------------------------------------------------------------
_lc_set:
sta ptr1
stx ptr1+1
tsx
lda $0102,x
ldy #$01
sta (ptr1),y
lda $0101,x
dey
sta (ptr1),y
rts
;---------------------------------------------------------------------
_lc_resume:
sta ptr1
stx ptr1+1
ldy #$01
lda (ptr1),y
beq :+
tsx
sta $0102,x
dey
lda (ptr1),y
sta $0101,x
: rts
;---------------------------------------------------------------------