started work on MEGA65 floppy support

src/,,config_mega65.s

@@ -90,8 +90,8 @@
 
 ; --- Built-in DOS configuration
 
-;; #CONFIG# UNIT_SDCARD                20        ; do not change, DOS is not implemented yet
-;; #CONFIG# UNIT_FLOPPY                0         ; do not change, DOS is not implemented yet
+;; #CONFIG# UNIT_SDCARD                20
+;; #CONFIG# UNIT_FLOPPY                21        ; work in progress
 ;; #CONFIG# UNIT_RAMDISK               0         ; do not change, DOS is not implemented yet
 
 

src/basic/init/initmsg_m65.s

@@ -31,11 +31,11 @@ INITMSG_native:
 
 	; Native mode	
 
-	ldx #44
+	ldx #46
 	ldy #0
 	jsr M65_SETWIN_XY
 
-	ldx #36
+	ldx #34
 	ldy #9
 	jsr M65_SETWIN_WH
 

src/dos_m65/dos_init.s

@@ -4,10 +4,6 @@
 ;
 
 
-!set CONFIG_UNIT_FLOPPY  = 0 ; XXX floppy not supported yet
-!set CONFIG_UNIT_RAMDISK = 0 ; XXX RAM disk not supported yet
-
-
 dos_INIT:
 
 	; Safer version of 'dos_ENTER' - does not affect speed related registers