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24 lines
303 B
ArmAsm

;
; Ullrich von Bassewitz, 05.08.1998
;
; CC65 runtime: xor on ints
;
.export tosxora0, tosxorax
.import addysp1
.importzp sp, tmp1
tosxora0:
ldx #$00
tosxorax:
ldy #0
eor (sp),y
sta tmp1
iny
txa
eor (sp),y
tax
lda tmp1
jmp addysp1 ; drop TOS, set condition codes