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cc65/libsrc/runtime/pushb.s
cuz b4163d0e4e Added some 65C02 code.
git-svn-id: svn://svn.cc65.org/cc65/trunk@484 b7a2c559-68d2-44c3-8de9-860c34a00d81
2000-11-27 22:59:03 +00:00

29 lines
423 B
ArmAsm

;
; Ullrich von Bassewitz, 31.08.1998
;
; CC65 runtime: Push word from stack
;
.export pushb, pushbidx
.import pushax
.importzp ptr1
pushbidx:
sty ptr1
clc
adc ptr1
bcc pushb
inx
pushb: sta ptr1
stx ptr1+1
ldx #0 ; Load index/high byte
.ifpc02
lda (ptr1) ; Save one cycle for the C02
.else
lda (ptr1,x)
.endif
bpl L1
dex ; Make high byte FF
L1: jmp pushax