more refactoring towards RAM disk support

src/dos_m65/unit_disk/disk_fd_cmd_close.s

@@ -4,7 +4,7 @@
 ;
 
 
-unit_fd_cmd_CLOSE:
+disk_fd_cmd_CLOSE:
 
 	; XXX provide implementation
 

src/dos_m65/unit_disk/disk_fd_cmd_open.s

@@ -6,7 +6,7 @@
 ; XXX add support for both floppies
 
 
-unit_disk_cmd_OPEN:
+disk_xx_cmd_OPEN:
 
 	lda #$01                 ; mode: receive command or file name
 	ldx PAR_FSINSTANCE
@@ -14,7 +14,7 @@ unit_disk_cmd_OPEN:
 
 	jmp dos_EXIT_CLC
 
-unit_disk_cmd_OPEN_EOI:
+disk_fd_cmd_OPEN_EOI:
 
 	; XXX this dispatcher is temporary
 
@@ -41,11 +41,11 @@ unit_disk_cmd_OPEN_EOI:
 	lda RD_CMDFN_BUF
 
 	cmp #'$'
-	beq unit_fd_cmd_OPEN_dir           ; XXX add support for second floppy and RAM disk
+	beq disk_fd_cmd_OPEN_dir           ; XXX add support for second floppy and RAM disk
 
 	; FALLTROUGH
 
-unit_fd_cmd_OPEN_file:
+disk_fd_cmd_OPEN_file:
 
 	; XXX add support for second floppy and RAM disk
 
@@ -66,7 +66,7 @@ unit_fd_cmd_OPEN_file:
 	jmp fs_cbm_read_file_open
 
 
-unit_fd_cmd_OPEN_dir:
+disk_fd_cmd_OPEN_dir:
 
 	lda #$02                 ; mode: read directory
 	sta F0_MODE

src/dos_m65/unit_disk/disk_fd_cmd_read.s

@@ -4,15 +4,15 @@
 ;
 
 
-unit_f0_cmd_READ:
+disk_f0_cmd_READ:
 
 	; XXX provide implementation
 
-unit_f1_cmd_READ:
+disk_f1_cmd_READ:
 
 	; XXX provide implementation
 
-unit_fd_cmd_READ:
+disk_f__cmd_READ:
 
 	lda F0_MODE
 	cmp #$03

src/dos_m65/unit_disk/disk_fd_init.s

@@ -4,7 +4,7 @@
 ;
 
 
-unit_fd_init:
+disk_fd_init:
 
 	; Copy status string
 

src/dos_m65/unit_disk/disk_rd_cmd_close.s

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

src/dos_m65/unit_disk/disk_rd_init.s

@@ -4,7 +4,7 @@
 ;
 
 
-unit_rd_init:
+disk_rd_init:
 
 
 	; Copy status string
@@ -26,7 +26,7 @@ unit_rd_init:
 
 	; FALLTROUGH
 
-unit_rd_init_test_ram:                 ; non-destructive ATTIC/CELLAR RAM test
+disk_rd_init_test_ram:                 ; non-destructive ATTIC/CELLAR RAM test
 
 	; Preserve temporary address area on stack
 

src/dos_m65/unit_disk/disk_rd_preload.s

@@ -7,12 +7,12 @@
 !addr __stoptrack = RD_DIR_PHASE       ; helper value for detecting too large image
 
 
-unit_rd_preload:
+disk_rd_preload:
 
 	; Check if RAM disk is enabled (should be disabled if no Hyper RAM is present)
 
 	lda UNIT_RAMDISK
-	+beq unit_rd_preload_err_common_noclose
+	+beq disk_rd_preload_err_common_noclose
 
 	; Select SD card buffer
 
@@ -51,13 +51,13 @@ unit_rd_preload:
 
 	lda RAM_ATTIC
 	beq @added_attic
-	jsr unit_rd_preload_addram
+	jsr disk_rd_preload_addram
 
 @added_attic:
 
 	lda RAM_CELLAR
 	beq @added_cellar
-	jsr unit_rd_preload_addram
+	jsr disk_rd_preload_addram
 
 @added_cellar:
 
@@ -168,22 +168,22 @@ unit_rd_preload:
 @error_wrong_size:
 
 	lda #$01
-	jmp unit_rd_preload_err_common
+	jmp disk_rd_preload_err_common
 
 @error_too_large:
 
 	lda #$02
-	jmp unit_rd_preload_err_common
+	jmp disk_rd_preload_err_common
 
 @error_not_found:
 
 	lda #$03
 	sta RD_MSG
 
-	jmp unit_rd_preload_err_common_noclose
+	jmp disk_rd_preload_err_common_noclose
 
 
-unit_rd_preload_err_common:
+disk_rd_preload_err_common:
 
 	sta RD_MSG                         ; set code for startup screen
 
@@ -191,7 +191,7 @@ unit_rd_preload_err_common:
 
 	; FALLTROUGH
 
-unit_rd_preload_err_common_noclose:
+disk_rd_preload_err_common_noclose:
 
 	lda #$00                           ; temporary storage needs to be restored to 0
 	sta __stoptrack
@@ -201,7 +201,7 @@ unit_rd_preload_err_common_noclose:
 
 
 
-unit_rd_preload_addram:
+disk_rd_preload_addram:
 
 	; Add allowed number of tracks due to attic/cellar block presence