work towards SECOND/TKSA in CBDOS

Makefile

@@ -61,7 +61,11 @@ SRCDIR_KERNAL  = $(SRCDIR_COMMON) \
                  src/kernal/time
 
 SRCDIR_DOS_M65 = $(SRCDIR_COMMON) \
-                 src/dos_m65
+                 src/dos_m65 \
+                 src/dos_m65/dev_floppy \
+                 src/dos_m65/dev_ramdisk \
+                 src/dos_m65/dev_sdcard
+
 
 SRCDIR_MON_M65 = $(SRCDIR_COMMON) \
                  src/mon_m65

src/dos_m65/,aliases_dos.s

@@ -21,5 +21,14 @@
 
 	; General DOS status
 
-	!addr IDX_LISTENER     = $8008 ; listener idx * 2, >=$80 = none
+	!addr IDX_LISTENER     = $8008 ; listener idx * 2, >=$80 = none - for calling routines via vector table
-	!addr IDX_TALKER       = $8009 ; talker   idx * 2, >=$80 = none
+	!addr IDX_TALKER       = $8009 ; talker   idx * 2, >=$80 = none - for calling routines via vector table
+
+	; Free space: $800A-$806F
+
+	!addr SD_STATUS_STR    = $8070 ; status string for SD card, terminated by 0
+	!addr SD_STATUS_IDX    = $809F ; index byte for reading status
+	!addr FD_STATUS_STR    = $80A0 ; status string for floppy drive, terminated by 0
+	!addr FD_STATUS_IDX    = $80CF ; index byte for reading status
+	!addr RD_STATUS_STR    = $80D0 ; status string for ram disk, terminated by 0
+	!addr RD_STATUS_IDX    = $80FF ; index byte for reading status

src/dos_m65/dev_floppy/dev_fd_init.s

@@ -0,0 +1,22 @@
+
+;
+; Initializes DOS part of floppy controller
+;
+
+
+dev_fd_init:
+
+	; Copy status string
+
+	ldx #$00
+	stx FD_STATUS_IDX
+	dex
+@1:
+	inx
+	lda dos_err_init_floppy,x
+	sta FD_STATUS_STR,x
+	bne @1
+
+	; End of initialization
+
+	rts

src/dos_m65/dev_ramdisk/dev_rd_init.s

@@ -0,0 +1,22 @@
+
+;
+; Initializes DOS part of ram disk
+;
+
+
+dev_rd_init:
+
+	; Copy status string
+
+	ldx #$00
+	stx RD_STATUS_IDX
+	dex
+@1:
+	inx
+	lda dos_err_init_ramdisk,x
+	sta RD_STATUS_STR,x
+	bne @1
+
+	; End of initialization
+
+	rts

src/dos_m65/dev_sdcard/dev_sd_init.s

@@ -0,0 +1,22 @@
+
+;
+; Initializes DOS part of SD card
+;
+
+
+dev_sd_init:
+
+	; Copy status string
+
+	ldx #$00
+	stx SD_STATUS_IDX
+	dex
+@1:
+	inx
+	lda dos_err_init_sdcard,x
+	sta SD_STATUS_STR,x
+	bne @1
+
+	; End of initialization
+
+	rts

src/dos_m65/dos_acptr_ciout.s

@@ -0,0 +1,22 @@
+
+;
+; Implementation of ACPTR/CIOUT commands.
+; For detailed description see 'm65dos_bridge.s' file.
+;
+
+
+dos_ACPTR:
+
+	; XXX provide implementation
+
+	sec
+	rts
+
+
+
+dos_CIOUT:
+
+	; XXX provide implementation
+
+	sec
+	rts

src/dos_m65/dos_error_strings.s

@@ -9,15 +9,15 @@
 
 dos_err_init_sdcard:
 
-	!pet "m65 dos sdcard", 0
+	!pet "73,m65 dos sdcard,00,00", 0
 
 dos_err_init_floppy:
 
-	!pet "m65 dos floppy", 0
+	!pet "73,m65 dos floppy,00,00", 0
 
 dos_err_init_ramdisk:
 
-	!pet "m65 dos ram disk", 0
+	!pet "73,m65 dos ram disk,00,00", 0
 
 
 ; List compiled from various manuals (CBM 1571, CBM 1581, CMD FD4000, MSD Super Disk, IDE64)

src/dos_m65/dos_init.s

@@ -37,4 +37,10 @@ dos_INIT:
 	sta IDX_LISTENER
 	sta IDX_TALKER
 
+	; Initialize device handlers
+
+	jsr dev_sd_init
+	jsr dev_fd_init
+	jsr dev_rd_init
+
 	rts

src/dos_m65/dos_listen_talk.s

@@ -72,6 +72,7 @@ dos_TALK_success:
 dos_fail_TALK_LISTEN:
 
 	pla
+	lda #K_ERR_DEVICE_NOT_FOUND
 	sec
 	rts
 

src/dos_m65/dos_second_tksa.s

@@ -0,0 +1,47 @@
+
+;
+; Implementation of SECOND/TKSA commands.
+; For detailed description see 'm65dos_bridge.s' file.
+;
+
+
+dos_SECOND:
+
+	; XXX provide implementation
+
+	sec
+	rts
+
+
+dos_TKSA:
+
+	pha
+	and #$60
+	bne dos_TKSA_OPEN
+	pla
+
+	; XXX provide implementation
+
+	sec
+	rts
+
+
+dos_TKSA_OPEN:
+
+	pla
+	and #$1F
+	cmp #$0F
+	beq dos_TKSA_OPEN_cmd
+
+	; XXX provide implementation
+
+	sec
+	rts
+
+
+dos_TKSA_OPEN_cmd:
+
+	; XXX provide implementation
+
+	sec
+	rts

src/dos_m65/stubs.s

@@ -1,16 +0,0 @@
-
-; Dummy implementations - XXX to be replaced with real ones
-
-dos_ACPTR:
-	+nop
-dos_CIOUT:
-	+nop
-dos_SECOND:
-	+nop
-dos_TKSA:
-	+nop
-
-	sec
-	rts
-
-

src/kernal/iec/acptr.s

@@ -24,7 +24,7 @@ ACPTR:
 
 !ifdef CONFIG_MB_M65 {
 	jsr m65dos_check
-	+bcc m65dos_acptr                ; branch if device is handeld by internal DOS
+	+bcc m65dos_acptr                  ; branch if device is handeld by internal DOS
 }
 
 !ifdef CONFIG_IEC {

src/kernal/iec/tksa.s

@@ -15,7 +15,7 @@
 
 TKSA:
 
-!ifdef CONFIG_MB_MEGA65 {
+!ifdef CONFIG_MB_M65 {
 
 	jsr m65dos_check
 	+bcc m65dos_tksa                     ; branch if device is handeld by internal DOS