32 lines
726 B
ArmAsm
32 lines
726 B
ArmAsm
|
;
|
||
|
; Ullrich von Bassewitz, 26.05.2002
|
||
|
;
|
||
|
; CC65 runtime: zeropage usage
|
||
|
;
|
||
|
|
||
|
.exportzp sp, sreg, regsave
|
||
|
.exportzp ptr1, ptr2, ptr3, ptr4
|
||
|
.exportzp tmp1, tmp2, tmp3, tmp4
|
||
|
.exportzp regbank, zpspace
|
||
|
|
||
|
; ------------------------------------------------------------------------
|
||
|
|
||
|
.zeropage
|
||
|
|
||
|
zpstart = *
|
||
|
sp: .res 2 ; Stack pointer
|
||
|
sreg: .res 2 ; Secondary register/high 16 bit for longs
|
||
|
regsave: .res 2 ; slot to save/restore (E)AX into
|
||
|
ptr1: .res 2
|
||
|
ptr2: .res 2
|
||
|
ptr3: .res 2
|
||
|
ptr4: .res 2
|
||
|
tmp1: .res 1
|
||
|
tmp2: .res 1
|
||
|
tmp3: .res 1
|
||
|
tmp4: .res 1
|
||
|
regbank: .res 6 ; 6 byte register bank
|
||
|
|
||
|
zpspace = * - zpstart ; Zero page space allocated
|
||
|
|