mirror of
https://github.com/cc65/cc65.git
synced 2024-12-25 02:29:52 +00:00
28 lines
497 B
ArmAsm
28 lines
497 B
ArmAsm
|
;
|
||
|
|
; Oliver Schmidt, 2012-10-21
|
||
|
|
;
|
||
|
|
; unsigned char getcurrentdevice (void);
|
||
|
|
;
|
||
|
|
|
||
|
|
.export _getcurrentdevice
|
||
|
|
.import __dos_type
|
||
|
|
|
||
|
|
.include "mli.inc"
|
||
|
|
|
||
|
|
_getcurrentdevice:
|
||
|
|
|
||
|
|
; Use unit number of most recent accessed device
|
||
|
|
lda DEVNUM
|
||
|
|
lsr
|
||
|
|
lsr
|
||
|
|
lsr
|
||
|
|
lsr
|
||
|
|
|
||
|
|
; Check for ProDOS 8
|
||
|
|
ldx __dos_type
|
||
|
|
bne :+
|
||
|
|
lda #$FF ; INVALID_DEVICE
|
||
|
|
|
||
|
|
: ldx #$00
|
||
|
|
rts
|