floppy directory display only misses proper blocks free now

src/dos_m65/assets/dos_parts_dir.s

@@ -37,10 +37,11 @@ dir_end:                     ; 19 bytes
 
 dir_types:
 
-	!pet "seq", $00          ; SEQ
-	!pet "prg", $00          ; PRG
-	!pet "usr", $00          ; USR
-	!pet "rel", $00          ; REL
+	!pet "del", $00          ; deleted file
+	!pet "seq", $00          ; sequential file
+	!pet "prg", $00          ; program (executable)
+	!pet "usr", $00          ; user type
+	!pet "rel", $00          ; random access file
 	!pet "cbm", $00          ; CBM-style partition
 	!pet "dir", $00          ; directory
 

src/dos_m65/dev_floppy/fs_1581_read_dir.s

@@ -147,10 +147,10 @@ fs_1581_read_dir:
 
 	ldy #$02                           ; start from determining file type
 	jsr code_LDA_nnnn_Y
+	beq fs_1581_read_dir               ; ignore deleted files (but allow DEL files in some cases)
 
 	tax
 	and #%00111111                     ; for checking, filter out special bits
-	beq fs_1581_read_dir               ; ignore deleted files
 	cmp #$06
 	bcs fs_1581_read_dir               ; ignore unknown file types
 

src/dos_m65/dev_sdcard/fs_hvsr_util_nextdirentry.s

@@ -169,7 +169,7 @@ fs_hvsr_util_nextdirentry:
 
 @lpext_found:
 
-	cpy #$14
+	cpy #$18
 	+beq fs_hvsr_util_nextdirentry     ; file extension 'DIR' does not mean this is a directory
 	tya
 
@@ -177,7 +177,6 @@ fs_hvsr_util_nextdirentry:
 	ror
 	clc
 	ror
-	inc
 
 	cmp #$07                           ; mark some file types (not SEQ/PRG/USR/REL/CBM/DIR) as read-only
 	bcc @detect_attributes

src/dos_m65/utils/util_dir_basic.s

@@ -85,7 +85,6 @@ util_dir_basic:
 
 	lda PAR_FTYPE                      ; put file type
 	and #$3F
-	dec
 	asl
 	asl
 	tay