CBDOS refactoring

src/dos_m65/unit_ramdisk/unit_rd_cmd_close.s

@@ -0,0 +1,11 @@
+
+;
+; Close currently opened file
+;
+
+
+unit_rd_cmd_CLOSE:
+
+	; XXX provide implementation
+
+	jmp dos_EXIT_SEC

src/dos_m65/unit_ramdisk/unit_rd_cmd_open.s

@@ -0,0 +1,17 @@
+
+;
+; Open file for reading
+;
+
+
+unit_rd_cmd_OPEN:
+
+	; XXX provide implementation
+
+	jmp dos_EXIT_SEC
+
+unit_rd_cmd_OPEN_EOI:
+
+	; XXX provide implementation
+
+	jmp dos_EXIT_CLC

src/dos_m65/unit_ramdisk/unit_rd_cmd_read.s

@@ -0,0 +1,12 @@
+
+;
+; Read more data into the buffer
+;
+
+
+unit_rd_cmd_READ:
+
+	; XXX provide implementation
+
+	sec ; mark EOI
+	rts

src/dos_m65/unit_ramdisk/unit_rd_init.s

@@ -0,0 +1,28 @@
+
+;
+; Initializes DOS part of ram disk
+;
+
+
+unit_rd_init:
+
+	; Copy status string
+
+	ldx #$00
+	stx RD_STATUS_IDX
+	stx RD_CMDFN_IDX
+	stx RD_MODE
+	stx RD_ACPTR_LEN+0
+	stx RD_ACPTR_LEN+1
+	stx RD_ACPTR_PTR+0
+	stx RD_ACPTR_PTR+1
+	dex
+@1:
+	inx
+	lda dos_sts_init_ramdisk,x
+	sta RD_STATUS_BUF,x
+	bne @1
+
+	; End of initialization
+
+	rts