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cc65/libsrc/runtime/lpush.s
cuz 0bac28d96f decspX will no longer save a
git-svn-id: svn://svn.cc65.org/cc65/trunk@662 b7a2c559-68d2-44c3-8de9-860c34a00d81
2001-03-24 15:57:32 +00:00

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369 B
ArmAsm

;
; Ullrich von Bassewitz, 06.08.1998
;
; CC65 runtime: long push
;
;
; push eax on stack
;
.export push0ax, pusheax
.import decsp4
.importzp sp, sreg
push0ax:
ldy #0
sty sreg
sty sreg+1
pusheax:
pha ; decsp will destroy A (but not X)
jsr decsp4
ldy #3
lda sreg+1
sta (sp),y
dey
lda sreg
sta (sp),y
dey
txa
sta (sp),y
dey
pla
sta (sp),y
rts