mirror of
https://github.com/cc65/cc65.git
synced 2024-11-18 00:07:21 +00:00
45 lines
1.1 KiB
ArmAsm
45 lines
1.1 KiB
ArmAsm
;
|
|
; Ullrich von Bassewitz, 22.06.2002
|
|
;
|
|
; Original C code by Marc 'BlackJack' Rintsch, 18.03.2001
|
|
;
|
|
; unsigned char __fastcall__ cbm_open (unsigned char lfn,
|
|
; unsigned char device,
|
|
; unsigned char sec_addr,
|
|
; const char* name);
|
|
; /* Opens a file. Works just like the BASIC command.
|
|
; ** Returns 0 if opening was successful, otherwise an errorcode (see table
|
|
; ** below).
|
|
; */
|
|
; {
|
|
; cbm_k_setlfs(lfn, device, sec_addr);
|
|
; cbm_k_setnam(name);
|
|
; return _oserror = cbm_k_open();
|
|
; }
|
|
;
|
|
|
|
.export _cbm_open
|
|
.import popa
|
|
.import _cbm_k_setlfs, _cbm_k_setnam, _cbm_k_open
|
|
.import __oserror
|
|
|
|
_cbm_open:
|
|
pha
|
|
txa
|
|
pha ; Save name
|
|
|
|
jsr popa ; Get sec_addr
|
|
jsr _cbm_k_setlfs ; Call SETLFS, pop all args
|
|
|
|
pla
|
|
tax
|
|
pla ; Get name
|
|
jsr _cbm_k_setnam
|
|
|
|
jsr _cbm_k_open
|
|
sta __oserror
|
|
|
|
rts
|
|
|
|
|