Marked files to be excluded from build.

[cc65] / libsrc / atari / dosdetect.s

diff --git a/libsrc/atari/dosdetect.s b/libsrc/atari/dosdetect.s
index d7c455f9872dd5daf06e7ae33e1aa18021259270..a87d00f7ca08b9e5e6153c062e31eb0ebe3c95c3 100644 (file)
--- a/libsrc/atari/dosdetect.s
+++ b/libsrc/atari/dosdetect.s
@@ -1,5 +1,5 @@
 ;
-; Freddy Offenga & Christian Groessler, August 2003
+; Freddy Offenga, Stefan Haubenthal, Christian Groessler, March 2007
 ;
 ; detect the DOS version we're running on
 ;
@@ -8,20 +8,23 @@
        .constructor    detect,26
        .export         __dos_type
 
+; ------------------------------------------------------------------------
 ; DOS type detection
 
-detect:        lda     #ATARIDOS
-       sta     __dos_type      ; set default
+.segment       "INIT"
 
-       lda     DOS
-       cmp     #$53            ; "S" (SpartaDOS)
+detect:        lda     DOS
+       cmp     #'S'            ; SpartaDOS
        beq     spdos
+       cmp     #'M'            ; MyDOS
+       beq     mydos
+       cmp     #'X'            ; XDOS
+       beq     xdos
 
+       lda     #$4C            ; probably default
        ldy     #COMTAB
-       lda     #$4C
        cmp     (DOSVEC),y
        bne     done
-
        ldy     #ZCRNAME
        cmp     (DOSVEC),y
        bne     done
@@ -30,14 +33,21 @@ detect:     lda     #ATARIDOS
        cmp     (DOSVEC),y
        beq     done
        lda     #OSADOS
-       sta     __dos_type
-       bne     done
+       .byte   $2C             ; BIT <abs>
 
 spdos: lda     #SPARTADOS
+       .byte   $2C             ; BIT <abs>
+
+mydos: lda     #MYDOS
+       .byte   $2C             ; BIT <abs>
+
+xdos:  lda     #XDOS
        sta     __dos_type
 done:  rts
 
-       .bss
+; ------------------------------------------------------------------------
+; Data
 
-__dos_type:    .res    1
+       .bss
 
+__dos_type:    .res    1       ; default to ATARIDOS