Atari: add support for BW-DOS. Initially contributed by Daniel Serpell.

2018-09-27 17:37:59 +02:00
parent fe7845b5f0
commit 6dc7309e50
6 changed files with 38 additions and 12 deletions
--- a/libsrc/atari/dosdetect.s
+++ b/libsrc/atari/dosdetect.s
@@ -35,9 +35,20 @@ detect: lda     DOS
        cmp     (DOSVEC),y
        beq     done
        lda     #OSADOS
+        bne     set
+
+spdos:  lda     DOS+3           ; 'B' in BW-DOS
+        cmp     #'B'
+        bne     spdos_real
+        lda     DOS+4           ; 'W' in BW-DOS
+        cmp     #'W'
+        bne     spdos_real
+
+        lda     #BWDOS
        .byte   $2C             ; BIT <abs>

-spdos:  lda     #SPARTADOS
+spdos_real:
+        lda     #SPARTADOS
        .byte   $2C             ; BIT <abs>

 mydos:  lda     #MYDOS
@@ -47,7 +58,7 @@ rdos:   lda     #REALDOS
        .byte   $2C             ; BIT <abs>

 xdos:   lda     #XDOS
-        sta     __dos_type
+set:    sta     __dos_type
 done:   rts

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