Updated cx16 to match the Commander X16 ROMs and emulator, release 34.

2019-11-16 13:11:40 -05:00
parent 4dda5d2173
commit d78133e1f0
37 changed files with 607 additions and 182 deletions
--- a/libsrc/cx16/filevars.s
+++ b/libsrc/cx16/filevars.s
@@ -0,0 +1,39 @@
+;
+; 2002-11-15, Ullrich von Bassewitz
+; 2019-11-08, Greg King
+;
+; Variables used for CBM file I/O
+;
+
+        .export         curunit
+        .constructor    initcurunit, 30
+        .destructor     updatedevnum, 30
+
+        .include        "cx16.inc"
+
+
+.segment "INIT"
+
+curunit:
+        .res    1
+
+
+.segment "ONCE"
+
+.proc   initcurunit
+        lda     DEVNUM
+        bne     L0
+        lda     #8              ; Default is SD card
+        sta     DEVNUM
+L0:     sta     curunit
+        rts
+.endproc
+
+
+.code
+
+.proc   updatedevnum
+        lda     curunit
+        sta     DEVNUM
+        rts
+.endproc