EightBall/eightballzp_a2e.S

12 lines
317 B
ArmAsm

;
; Apple II zero page is used for pointer for indirect addressing
; $80-$9a are used by cc65 ZP segment so avoid this range
; Zero-page usage is documented in:
; ProDOS 8 Technical Reference Manual Section A.4
; The upper half of ZP is generally used by BASIC only, so we can use it.
.exportzp _addrptr := $a0