diff --git a/desk.acc/Makefile b/desk.acc/Makefile
index c47ca8b..79a524a 100644
--- a/desk.acc/Makefile
+++ b/desk.acc/Makefile
@@ -7,7 +7,8 @@ OUTDIR = out
 
 HEADERS = $(wildcard ../*.inc) $(wildcard ../inc/*.inc) $(wildcard *.inc)
 
-DAS = calculator show.text.file date puzzle show.image.file this.apple eyes
+DAS = calculator show.text.file date puzzle sort.directory \
+	show.image.file this.apple eyes
 
 TARGETS = $(patsubst %,$(OUTDIR)/%.$$F1,$(DAS))
 
diff --git a/desk.acc/orig/sort.directory.bin b/desk.acc/orig/sort.directory.bin
new file mode 100644
index 0000000..5ec1a4b
Binary files /dev/null and b/desk.acc/orig/sort.directory.bin differ
diff --git a/desk.acc/res/go.sh b/desk.acc/res/go.sh
index e5f3116..6aec795 100755
--- a/desk.acc/res/go.sh
+++ b/desk.acc/res/go.sh
@@ -44,6 +44,7 @@ verify "calculator"
 verify "show.text.file"
 verify "date"
 verify "puzzle"
+verify "sort.directory"
 
 # Compute stats
 echo "Stats:"
@@ -51,6 +52,7 @@ stats "calculator.s"
 stats "show.text.file.s"
 stats "date.s"
 stats "puzzle.s"
+stats "sort.directory.s"
 
 # Mountable directory
 if [ -d mount ]; then
diff --git a/desk.acc/sort.directory.s b/desk.acc/sort.directory.s
new file mode 100644
index 0000000..4b3163d
--- /dev/null
+++ b/desk.acc/sort.directory.s
@@ -0,0 +1,706 @@
+        .setcpu "6502"
+
+        .include "apple2.inc"
+        .include "../inc/apple2.inc"
+        .include "../inc/prodos.inc"
+
+        .include "../mgtk.inc"
+        .include "../desktop.inc"
+        .include "../macros.inc"
+
+        .org $800
+
+;;; ============================================================
+
+        cli
+        jmp     start
+
+L0804:  .byte   0
+
+save_stack:
+        .byte   0
+
+;;; ============================================================
+
+start:  tsx
+        stx     save_stack
+        jmp     L0932
+
+L080D:  ldx     save_stack
+        txs
+        lda     a:$0A
+        bne     L0817
+        rts
+
+L0817:  lda     #$40
+        pha
+        lda     #$0B
+        pha
+        lda     a:$0A
+        rts
+
+;;; ============================================================
+;;; ProDOS Relays
+
+.proc open
+        sta     ALTZPOFF
+        MLI_CALL OPEN, open_params
+        sta     ALTZPON
+        rts
+.endproc
+
+.proc read
+        sta     ALTZPOFF
+        MLI_CALL READ, read_params
+        sta     ALTZPON
+        rts
+.endproc
+
+.proc write_block
+        sta     ALTZPOFF
+        MLI_CALL WRITE_BLOCK, block_params
+        sta     ALTZPON
+        rts
+.endproc
+
+.proc read_block
+        sta     ALTZPOFF
+        MLI_CALL READ_BLOCK, block_params
+        sta     ALTZPON
+        rts
+.endproc
+
+.proc on_line
+        sta     ALTZPOFF
+        MLI_CALL ON_LINE, on_line_params
+        sta     ALTZPON
+        rts
+.endproc
+        .byte   0
+
+;;; unused ???
+.proc write
+        sta     ALTZPOFF
+        MLI_CALL WRITE, write_params
+        sta     ALTZPON
+        rts
+.endproc
+
+;;; unused ???
+.proc set_mark
+        sta     ALTZPOFF
+        MLI_CALL SET_MARK, set_mark_params
+        sta     ALTZPON
+        rts
+.endproc
+
+;;; unused ???
+.proc get_file_info
+        sta     ALTZPOFF
+        MLI_CALL GET_FILE_INFO, file_info_params
+        sta     ALTZPON
+        rts
+.endproc
+
+;;; unused ???
+.proc set_file_info
+        sta     ALTZPOFF
+        MLI_CALL SET_FILE_INFO, file_info_params
+        sta     ALTZPON
+        rts
+.endproc
+
+.proc close
+        sta     ALTZPOFF
+        MLI_CALL CLOSE, close_params
+        sta     ALTZPON
+        rts
+.endproc
+
+;;; ============================================================
+
+        DEFINE_ON_LINE_PARAMS on_line_params,, on_line_buffer
+on_line_buffer:
+        .res    16, 0
+
+        DEFINE_SET_MARK_PARAMS set_mark_params, $2B
+        DEFINE_READ_BLOCK_PARAMS block_params, 0, 0
+
+        .byte   0
+
+        DEFINE_OPEN_PARAMS open_params, path_buf, $1C00
+        DEFINE_READ_PARAMS read_params, $0E00, $0E00
+        DEFINE_WRITE_PARAMS write_params, $0E00, $0E00
+        DEFINE_CLOSE_PARAMS close_params
+
+        DEFINE_GET_FILE_INFO_PARAMS file_info_params, path_buf
+        .res    3               ; for SET_FILE_INFO ???
+
+path_buf:
+        .res    65, 0
+
+;;; ============================================================
+
+L0932:  sta     ALTZPON
+        lda     LCBANK1
+        lda     LCBANK1
+        yax_call JUMP_TABLE_MGTK_RELAY, MGTK::FrontWindow, $0A
+        lda     $0A
+        beq     L094C
+        cmp     #$09
+        bcc     L094F
+L094C:  jmp     L080D
+
+L094F:  asl     a
+        tay
+        lda     $DFB3,y
+        sta     $06
+        lda     $DFB4,y
+        sta     $07
+        ldy     #$00
+        sty     $10
+        lda     ($06),y
+        sta     L0976
+        sta     path_buf
+L0967:  iny
+        lda     ($06),y
+        and     #$7F
+        cmp     #$61
+        bcc     L0972
+        and     #$DF
+L0972:  sta     path_buf,y
+        L0976 := *+1
+        cpy     #0
+        bne     L0967
+        ldy     $BF31
+        sty     L0A92
+L097F:  ldy     L0A92
+        lda     $BF32,y
+        and     #$F0
+        sta     on_line_params::unit_num
+        jsr     on_line
+        bne     L0994
+        jsr     L0AB0
+        beq     L099C
+L0994:  dec     L0A92
+        bpl     L097F
+L0999:  jmp     L080D
+
+L099C:  lda     on_line_params::unit_num
+        sta     L0804
+        jsr     open
+        bne     L0999
+        lda     open_params::ref_num
+        sta     read_params::ref_num
+        sta     close_params::ref_num
+        jsr     read
+        jsr     close
+        bne     L0999
+        ldx     #$02
+L09BA:  .byte   $AD
+        .byte   $02
+L09BC:  asl     $959D
+        asl     a
+        .byte   $AD
+        .byte   $03
+L09C2:  asl     $969D
+        asl     a
+        ora     L0A95,x
+        beq     L09DD
+        inc     L09BC
+        inc     L09BC
+        inc     L09C2
+        inc     L09C2
+        inx
+        inx
+        cpx     #$0E
+        bne     L09BA
+L09DD:  txa
+        clc
+        adc     #$0E
+        sta     L0A93
+        jsr     L0B40
+L09E7:  jsr     L0B16
+        bcs     L0A3B
+        ldy     #$00
+        lda     ($06),y
+        and     #$F0
+        beq     L09E7
+        ldy     #$25
+        lda     ($06),y
+        sta     L0A95
+        iny
+        lda     ($06),y
+        sta     L0A96
+        jsr     L0AE8
+        lda     L0804
+        sta     block_params::unit_num
+        lda     #$00
+        sta     L0A94
+L0A0F:  lda     L0A94
+        asl     a
+        tay
+        lda     L0A95,y
+        sta     block_params::block_num
+        lda     L0A96,y
+        sta     block_params::block_num+1
+        ora     block_params::block_num
+        beq     L0A3E
+        tya
+        clc
+        adc     #$0E
+        sta     block_params::data_buffer+1
+        lda     #$00
+        sta     block_params::data_buffer
+        jsr     write_block
+        bne     L0A3B
+        inc     L0A94
+        bne     L0A0F
+L0A3B:  jmp     L080D
+
+L0A3E:  copy16  #$1C00, block_params::data_buffer
+        jsr     L0B40
+L0A4B:  jsr     L0B16
+        bcs     L0A8E
+        ldy     #$00
+        lda     ($06),y
+        and     #$F0
+        beq     L0A4B
+        cmp     #$D0
+        bne     L0A4B
+        ldy     #$11
+        lda     ($06),y
+        sta     block_params::block_num
+        iny
+        lda     ($06),y
+        sta     block_params::block_num+1
+        jsr     read_block
+        bne     L0A8F
+        lda     $07
+        sec
+        sbc     #$0E
+        and     #$FE
+        tay
+        lda     L0A95,y
+        sta     $1C27
+        lda     L0A96,y
+        sta     $1C28
+        lda     L0AAF
+        sta     $1C29
+        jsr     write_block
+        jmp     L0A4B
+
+L0A8E:  pla
+L0A8F:  jmp     L080D
+
+L0A92:  .byte   0
+L0A93:  .byte   0
+L0A94:  .byte   0
+L0A95:  .byte   0
+L0A96:  .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+        .byte   0
+L0AAF:  .byte   0
+
+L0AB0:  lda     on_line_buffer
+        and     #$0F
+        sta     on_line_buffer
+        ldy     #$00
+L0ABA:  iny
+        lda     on_line_buffer,y
+        and     #$7F
+        cmp     #$61
+        bcc     L0AC6
+        and     #$DF
+L0AC6:  cmp     path_buf+1,y
+        bne     L0AE5
+        cpy     on_line_buffer
+        bne     L0ABA
+        lda     on_line_buffer
+        clc
+        adc     #$01
+        cmp     path_buf
+        beq     L0AE2
+        lda     path_buf+2,y
+        cmp     #$2F
+        bne     L0AE5
+L0AE2:  return  #$00
+
+L0AE5:  return  #$FF
+
+L0AE8:  lda     #$00
+        sta     L0B15
+        jsr     L0B40
+        jsr     L0B16
+L0AF3:  copy16  $06, $08
+        jsr     L0B16
+        bcs     L0B0F
+        jsr     L0B5E
+        bcc     L0AF3
+        jsr     L0B4E
+        lda     #$FF
+        sta     L0B15
+        bne     L0AF3
+L0B0F:  lda     L0B15
+        bne     L0AE8
+        rts
+
+L0B15:  .byte   0
+
+;;; ============================================================
+
+L0B16:  inc     L0AAF
+        lda     $06
+        clc
+        adc     #$27
+        sta     $06
+        bcc     L0B24
+        inc     $07
+L0B24:  lda     $06
+        cmp     #$FF
+        bne     L0B3C
+        inc     $07
+        lda     #$01
+        sta     L0AAF
+        lda     #$04
+        sta     $06
+        lda     $07
+        cmp     L0A93
+        bcs     L0B3E
+L0B3C:  clc
+        rts
+
+L0B3E:  sec
+        rts
+
+L0B40:  lda     #$01
+        sta     L0AAF
+        lda     #$04
+        sta     $06
+        lda     #$0E
+        sta     $07
+        rts
+
+L0B4E:  ldy     #$26
+L0B50:  lda     ($06),y
+        pha
+        lda     ($08),y
+        sta     ($06),y
+        pla
+        sta     ($08),y
+        dey
+        bpl     L0B50
+        rts
+
+L0B5E:  ldy     #$00
+        lda     ($06),y
+        and     #$F0
+        bne     L0B69
+        jmp     L0BF0
+
+L0B69:  lda     ($08),y
+        and     #$F0
+        bne     L0B72
+        jmp     L0BEE
+
+L0B72:  lda     $DF21
+        beq     L0B7F
+        lda     $DF20
+        beq     L0B7F
+        jmp     L0BF5
+
+L0B7F:  lda     $08
+        ldx     $09
+        jsr     L0CFC
+        bcc     L0BF0
+        lda     $06
+        ldx     $07
+        jsr     L0CFC
+        bcc     L0BEE
+        ldy     #$00
+        lda     ($08),y
+        and     #$F0
+        sta     L0BF2
+        ldy     #$00
+        lda     ($06),y
+        and     #$F0
+        sta     L0BF3
+        lda     L0BF2
+        cmp     #$D0
+        beq     L0BB3
+        lda     L0BF3
+        cmp     #$D0
+        beq     L0BEE
+        bne     L0BC1
+L0BB3:  lda     L0BF3
+        cmp     #$D0
+        bne     L0BF0
+        jsr     L0D33
+        bcc     L0BF0
+        bcs     L0BEE
+L0BC1:  lda     #$04
+        jsr     L0CBE
+        bne     L0BCC
+        bcc     L0BF0
+        bcs     L0BEE
+L0BCC:  lda     #$FF
+        jsr     L0CBE
+        bne     L0BD7
+        bcc     L0BF0
+        bcs     L0BEE
+L0BD7:  lda     #$FD
+        sta     L0BF4
+L0BDC:  dec     L0BF4
+        lda     L0BF4
+        beq     L0BF0
+        jsr     L0CBE
+        bne     L0BDC
+        bcs     L0BEE
+        jmp     L0BF0
+
+L0BEE:  sec
+        rts
+
+L0BF0:  clc
+        rts
+
+L0BF2:  .byte   0
+L0BF3:  .byte   0
+L0BF4:  .byte   0
+
+;;; ============================================================
+
+L0BF5:  ldx     $DF21
+L0BF8:  dex
+        bmi     L0C4A
+        lda     $DF22,x
+        asl     a
+        tay
+        lda     $DD9F,y
+        clc
+        adc     #$09
+        sta     $10
+        lda     $DDA0,y
+        adc     #$00
+        sta     $11
+        ldy     #$00
+        lda     ($10),y
+        sec
+        sbc     #$02
+        sta     L0C24
+        inc16   $10
+L0C1F:  lda     ($06),y
+        and     #$0F
+
+        L0C24 := *+1
+        cmp     #$0
+
+        bne     L0BF8
+        sta     L0C47
+L0C2A:  iny
+        lda     ($10),y
+        and     #$7F
+        cmp     #$61
+        bcc     L0C35
+        and     #$DF
+L0C35:  sta     L0C43
+        lda     ($06),y
+        and     #$7F
+        cmp     #$61
+        bcc     L0C42
+        and     #$DF
+
+        L0C43 := *+1
+L0C42:  cmp     #0
+
+        bne     L0BF8
+
+        L0C47 := *+1
+        cpy     #0
+
+        bne     L0C2A
+L0C4A:  stx     L0CBC
+        ldx     $DF21
+L0C50:  dex
+        bmi     L0CA2
+        lda     $DF22,x
+        asl     a
+        tay
+        lda     $DD9F,y
+        clc
+        adc     #$09
+        sta     $10
+        lda     $DDA0,y
+        adc     #$00
+        sta     $11
+        ldy     #$00
+        lda     ($10),y
+        sec
+        sbc     #$02
+        sta     L0C7C
+        inc16   $10
+L0C77:  lda     ($08),y
+        and     #$0F
+
+        L0C7C := *+1
+        cmp     #0
+
+        bne     L0C50
+        sta     L0C9F
+L0C82:  iny
+        lda     ($10),y
+        and     #$7F
+        cmp     #$61
+        bcc     L0C8D
+        and     #$DF
+L0C8D:  sta     L0C9B
+        lda     ($08),y
+        and     #$7F
+        cmp     #$61
+        bcc     L0C9A
+        and     #$DF
+        L0C9B := *+1
+L0C9A:  cmp     #0
+        bne     L0C50
+
+        L0C9F := *+1
+        cpy     #0
+
+        bne     L0C82
+L0CA2:  stx     L0CBD
+        lda     L0CBC
+        and     L0CBD
+        cmp     #$FF
+        beq     L0CBA
+        lda     L0CBD
+        cmp     L0CBC
+        beq     L0CBA
+        rts
+
+        sec
+        rts
+
+L0CBA:  clc
+        rts
+
+L0CBC:  .byte   0
+L0CBD:  .byte   0
+L0CBE:  sta     L0CFB
+        ldy     #$10
+        lda     ($08),y
+        sta     L0CF1
+        lda     ($06),y
+        sta     L0CF2
+        lda     L0CF1
+        cmp     L0CFB
+        beq     L0CDF
+        lda     L0CF2
+        cmp     L0CFB
+        beq     L0CF7
+        bne     L0CEE
+L0CDF:  lda     L0CF2
+        cmp     L0CFB
+        bne     L0CF3
+        jsr     L0D33
+        bcc     L0CF3
+        bcs     L0CF7
+L0CEE:  return  #$FF
+
+L0CF1:  .byte   0
+L0CF2:  .byte   0
+L0CF3:  lda     #$00
+        clc
+        rts
+
+L0CF7:  lda     #$00
+        sec
+        rts
+
+L0CFB:  .byte   0
+L0CFC:  stax    $00
+        ldy     #$10
+        lda     ($00),y
+        cmp     #$FF
+        bne     L0D29
+        ldy     #$00
+        lda     ($00),y
+        and     #$0F
+        sec
+        sbc     #$06
+        bcc     L0D29
+        tay
+        ldx     #$00
+        dey
+L0D17:  iny
+        inx
+        lda     ($00),y
+        and     #$7F
+        cmp     L0D2B,x
+        bne     L0D29
+        cpx     L0D2B
+        bne     L0D17
+        clc
+        rts
+
+L0D29:  sec
+        rts
+
+L0D2B:  .byte   $07
+        rol     $5953
+        .byte   $53
+        .byte   $54
+        eor     $4D
+L0D33:  ldy     #$00
+        lda     ($08),y
+        and     #$0F
+        sta     L0D6B
+        sta     L0D5C
+        lda     ($06),y
+        and     #$0F
+        sta     L0D6C
+        cmp     L0D5C
+        bcs     L0D4E
+        sta     L0D5C
+L0D4E:  ldy     #$00
+L0D50:  iny
+        lda     ($08),y
+        cmp     ($06),y
+        beq     L0D5B
+        bcc     L0D69
+L0D59:  sec
+        rts
+
+        L0D5C := *+1
+L0D5B:  cpy     #0
+        bne     L0D50
+        lda     L0D6B
+        cmp     L0D6C
+        beq     L0D69
+        bcs     L0D59
+L0D69:  clc
+        rts
+
+L0D6B:  .byte   0
+L0D6C:  .byte   0
diff --git a/res/make_info.pl b/res/make_info.pl
index c3bcbfc..676a550 100755
--- a/res/make_info.pl
+++ b/res/make_info.pl
@@ -9,7 +9,7 @@ print <<"END_HEADER";
 GLOBAL {
   STARTADDR       \$$org;
   PAGELENGTH      0;                  # No paging
-  CPU             "65C02";
+  CPU             "6502";
 };
 END_HEADER