fix for ram disk file name

src/dos_m65/,aliases_dos.s

@@ -177,7 +177,7 @@
 
 	; Memory shadow, needed for SD card support
 
-	!addr SD_MEMSHADOW_BUF = $A800 ; 256 byte buffer for preserving original memory content
+	!addr MEMSHADOW_BUF    = $A800 ; 256 byte buffer for preserving original memory content
 
 	; Command/filename buffers, 256 bytes each
 

src/dos_m65/filesystem_vfs/fs_vfs_nextfileblock.s

@@ -66,7 +66,7 @@ fs_vfs_nextfileblock:
 
 fs_vfs_file_not_found:
 
-	jsr fs_vfs_direntmem_restore       ; restore $1000 memory content
+	jsr util_shadow_restore            ; restore $1000 memory content
 
     ldx SD_DESC
 	lda #$16                           ; dos_closedir

src/dos_m65/filesystem_vfs/fs_vfs_read_dir.s

@@ -49,9 +49,9 @@ fs_vfs_read_dir:
 	; Read dirent structure into $1000, process it, restore the memory content.
 	; Starting at $1000 VIC sees chargen, so this should be a safe place
 
-	jsr fs_vfs_direntmem_prepare
+	jsr util_shadow
 	jsr fs_vfs_nextdirentry
-	jsr fs_vfs_direntmem_restore      ; processor status is preserved
+	jsr util_shadow_restore          ; processor status is preserved
 
 	; If nothing to read, output 'blocks free'
 
@@ -112,34 +112,3 @@ fs_vfs_read_dir_blocksfree:
 
 	clc
 	rts
-
-;
-; Helper routines
-;
-
-fs_vfs_direntmem_prepare:
-
-	ldx #$00
-@1:
-	ldy $1000, x
-	sty SD_MEMSHADOW_BUF, x
-	inx
-	bne @1
-
-	rts
-
-fs_vfs_direntmem_restore:
-
-	php
-
-	ldx #$00
-@1:
-	ldy SD_MEMSHADOW_BUF, x
-	sty $1000, x
-	inx
-	bne @1
-
-	bne @1
-
-	plp
-	rts

src/dos_m65/filesystem_vfs/fs_vfs_read_file.s

@@ -28,7 +28,7 @@ fs_vfs_read_file_open:
 	; Read dirent structures into $1000, find the first matching file
 	; Starting at $1000 VIC sees chargen, so this should be a safe place
 
-	jsr fs_vfs_direntmem_prepare
+	jsr util_shadow
 
 @lp_find:
 
@@ -49,7 +49,7 @@ fs_vfs_read_file_open:
 
 	; Found the file - load it
 
-	jsr fs_vfs_direntmem_restore       ; restore $1000 memory content
+	jsr util_shadow_restore            ; restore $1000 memory content
 
 	lda #$18                           ; dos_openfile
 	sta HTRAP00

src/dos_m65/unit_ramdisk/unit_rd_preload.s

@@ -21,11 +21,21 @@ unit_rd_preload:
 
 	; Set file name
 
-	ldy #>ramdisk_filename
-	ldx #<ramdisk_filename
+	jsr util_shadow
+	ldx #$FF
+@lp1:
+	inx
+	lda ramdisk_filename, x
+	sta $1000, x
+	bne @lp1
+
+	ldy #>$1000
+	ldx #<$1000
 	lda #$2E                           ; dos_setname
 	sta HTRAP00
 	+nop
+	jsr util_shadow_restore
+
 	+bcc @error_not_found              ; branch if error
 
 	; Try to find the file

src/dos_m65/utils/util_shadow.s

@@ -0,0 +1,31 @@
+
+; Handling shadow memory, preserves .P
+
+
+
+util_shadow:
+
+	ldx #$00
+@1:
+	ldy $1000, x
+	sty MEMSHADOW_BUF, x
+	inx
+	bne @1
+
+	rts
+
+util_shadow_restore:
+
+	php
+
+	ldx #$00
+@1:
+	ldy MEMSHADOW_BUF, x
+	sty $1000, x
+	inx
+	bne @1
+
+	bne @1
+
+	plp
+	rts