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rename defdev to __defdev and export it; add support for

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DEFAULT_DEVICE and DYNAMIC_DD


git-svn-id: svn://svn.cc65.org/cc65/trunk@3336 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cpg 2004-12-16 22:46:28 +00:00
parent ae70828938
commit 47054d90d3
1 changed files with 13 additions and 6 deletions
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19
libsrc/atari/getdefdev.s
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@ -1,5 +1,5 @@
;
; Freddy Offenga & Christian Groessler, June 2004
; Freddy Offenga & Christian Groessler, December 2004
;
; function to get default device: char *_getdefdev(void);
;
@ -17,11 +17,18 @@
.include "atari.inc"
.import __dos_type
.export __getdefdev ; get default device (e.g. "D1:")
.ifdef DYNAMIC_DD
.export __defdev
.endif
; Get default device (LBUF will be destroyed!!)
__getdefdev:
.ifdef DEFAULT_DEVICE
lda #'0'+DEFAULT_DEVICE
sta __defdev+1
.endif
lda __dos_type ; which DOS?
cmp #ATARIDOS
beq finish
@ -62,21 +69,21 @@ crvec: jsr $FFFF ; will be set to crunch vector
ldy #COMFNAM ; COMFNAM is always "Dn:"
lda (DOSVEC),y
sta defdev
sta __defdev
iny
lda (DOSVEC),y
sta defdev+1
sta __defdev+1
; Return pointer to default device
finish: lda #<defdev
ldx #>defdev
finish: lda #<__defdev
ldx #>__defdev
rts
.data
; Default device
defdev:
__defdev:
.byte "D1:", 0