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cc65/libsrc/runtime/lpush.s
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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:
jsr decsp4
pha
ldy #0
sta (sp),y
iny
txa
sta (sp),y
iny
lda sreg
sta (sp),y
iny
lda sreg+1
sta (sp),y
pla
rts