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cc65/libsrc/runtime/land.s

37 lines
712 B
ArmAsm

;
; Ullrich von Bassewitz, 06.08.1998
;
; CC65 runtime: and on longs
;
.export tosand0ax, tosandeax
.import addysp1
.importzp sp, sreg, tmp1
tosand0ax:
ldy #$00
sty sreg
sty sreg+1
tosandeax:
ldy #0
and (sp),y ; byte 0
sta tmp1
iny
txa
and (sp),y ; byte 1
tax
iny
lda sreg
and (sp),y ; byte 2
sta sreg
iny
lda sreg+1
and (sp),y ; byte 3
sta sreg+1
lda tmp1
jmp addysp1