mirror of
https://github.com/cc65/cc65.git
synced 2024-11-16 02:10:52 +00:00
100 lines
2.1 KiB
ArmAsm
100 lines
2.1 KiB
ArmAsm
;
|
|
; Stefan Haubenthal, 2005-12-24
|
|
; Based on on code by Christian Groessler
|
|
;
|
|
; unsigned char __fastcall__ _syschdir (const char* name);
|
|
; for SpartaDOS, RealDOS, and MyDOS
|
|
;
|
|
|
|
.include "atari.inc"
|
|
.import findfreeiocb
|
|
.import __dos_type
|
|
.import initcwd
|
|
.importzp tmp4
|
|
.ifdef UCASE_FILENAME
|
|
.importzp tmp3
|
|
.import addysp
|
|
.import ucase_fn
|
|
.ifdef DEFAULT_DEVICE
|
|
.importzp tmp2
|
|
.endif
|
|
.endif
|
|
.export __syschdir
|
|
|
|
.proc __syschdir
|
|
|
|
pha ; save input parameter
|
|
txa
|
|
pha
|
|
|
|
jsr findfreeiocb
|
|
beq iocbok ; we found one
|
|
|
|
pla
|
|
pla ; fix up stack
|
|
|
|
lda #TMOF ; too many open files
|
|
rts
|
|
|
|
iocbok: stx tmp4 ; remember IOCB index
|
|
pla
|
|
tax
|
|
pla ; get argument again
|
|
|
|
.ifdef UCASE_FILENAME
|
|
|
|
.ifdef DEFAULT_DEVICE
|
|
ldy #$80
|
|
sty tmp2 ; set flag for ucase_fn
|
|
.endif
|
|
jsr ucase_fn
|
|
bcc ucok1
|
|
|
|
lda #183 ; see oserror.s
|
|
rts
|
|
ucok1:
|
|
|
|
.endif ; defined UCASE_FILENAME
|
|
|
|
ldy tmp4 ; IOCB index
|
|
sta ICBAL,y ; store pointer to filename
|
|
txa
|
|
sta ICBAH,y
|
|
tya
|
|
tax
|
|
lda __dos_type
|
|
cmp #SPARTADOS
|
|
beq :+
|
|
cmp #REALDOS
|
|
beq :+
|
|
cmp #BWDOS
|
|
beq :+
|
|
lda #CHDIR_MYDOS
|
|
.byte $2C ; BIT <abs>
|
|
: lda #CHDIR_SPDOS
|
|
sta ICCOM,x
|
|
lda #0
|
|
sta ICAX1,x
|
|
sta ICAX2,x
|
|
sta ICBLL,x
|
|
sta ICBLH,x
|
|
jsr CIOV
|
|
|
|
.ifdef UCASE_FILENAME
|
|
tya
|
|
pha
|
|
ldy tmp3 ; get size
|
|
jsr addysp ; free used space on the stack
|
|
pla
|
|
tay
|
|
.endif ; defined UCASE_FILENAME
|
|
|
|
bmi cioerr
|
|
jsr initcwd
|
|
lda #0
|
|
rts
|
|
cioerr: tya
|
|
rts
|
|
|
|
.endproc ; __syschdir
|