diff --git a/6.out b/6.out
deleted file mode 100755
index d104972..0000000
Binary files a/6.out and /dev/null differ
diff --git a/a.out b/a.out
deleted file mode 100644
index 64791c5..0000000
Binary files a/a.out and /dev/null differ
diff --git a/cpu.6 b/cpu.6
deleted file mode 100644
index 361a8cb..0000000
Binary files a/cpu.6 and /dev/null differ
diff --git a/fns.h b/fns.h
index 72fa083..15c502e 100644
--- a/fns.h
+++ b/fns.h
@@ -8,6 +8,3 @@ extern u8int	pop8(void);
 extern u16int	pop16(void);
 extern u8int	fetch8(void);
 extern u16int	fetch16(void);
-
-extern void	in(void*);
-extern void	out(void*);
diff --git a/in.6 b/in.6
deleted file mode 100644
index 630b7d5..0000000
Binary files a/in.6 and /dev/null differ
diff --git a/in.c b/in.c
deleted file mode 100644
index e6d6a34..0000000
--- a/in.c
+++ /dev/null
@@ -1,22 +0,0 @@
-#include <u.h>
-#include <libc.h>
-#include <ctype.h>
-#include "dat.h"
-#include "fns.h"
-
-void
-in(void*)
-{
-	int c;
-
-	for(;;){
-		if(memread(0x7005) == 1){
-			memwrite(0x7004, 1);
-			read(0, &c, 1);
-			c = toupper(c);
-			memwrite(0x7003, c);
-			memwrite(0x7004, 0);
-			memwrite(0x7005, 0);
-		}
-	}
-}
diff --git a/main.6 b/main.6
deleted file mode 100644
index 9df8dad..0000000
Binary files a/main.6 and /dev/null differ
diff --git a/main.c b/main.c
index 9244fa4..c6314e5 100644
--- a/main.c
+++ b/main.c
@@ -1,6 +1,5 @@
 #include <u.h>
 #include <libc.h>
-#include <thread.h>
 #include "dat.h"
 #include "fns.h"
 
@@ -36,7 +35,7 @@ openprog(char *f)
 }
 
 void
-threadmain(int argc, char **argv)
+main(int argc, char **argv)
 {
 	int c;
 	vlong t, t2, t3;
@@ -65,8 +64,6 @@ threadmain(int argc, char **argv)
 	rP = 0x34;
 	pc = 0xFFFC;
 	pc = fetch16();
-	threadcreate(in, nil, mainstacksize);
-	threadcreate(out, nil, mainstacksize);
 	for(;;){
 		c = step();
 		while(c >= 0){
diff --git a/mem.6 b/mem.6
deleted file mode 100644
index 9015a8e..0000000
Binary files a/mem.6 and /dev/null differ
diff --git a/mkfile b/mkfile
index 24a7edd..2b5dafa 100755
--- a/mkfile
+++ b/mkfile
@@ -3,7 +3,7 @@
 BIN=/$objtype/bin
 
 TARG=scemu
-OFILES=main.$O cpu.$O mem.$O in.$O out.$O
+OFILES=main.$O cpu.$O mem.$O
 UPDATE=mkfile prog.s ${OFILES:%.$O=%.c}
 
 default:V:	$O.out
diff --git a/out.6 b/out.6
deleted file mode 100644
index de3077d..0000000
Binary files a/out.6 and /dev/null differ
diff --git a/out.c b/out.c
deleted file mode 100644
index 8f9489c..0000000
--- a/out.c
+++ /dev/null
@@ -1,19 +0,0 @@
-#include <u.h>
-#include <libc.h>
-#include "dat.h"
-#include "fns.h"
-
-void
-out(void*)
-{
-	int c;
-
-	for(;;)
-		if(memread(0x7002) == 1){ /* ready to be fiddled */
-			memwrite(0x7001, 1); /* we are busy */
-			c = memread(0x7000);
-			print("%c", c);
-			memwrite(0x7002, 0);
-			memwrite(0x7001, 0);
-		}
-}
diff --git a/test.s b/test.s
deleted file mode 100644
index caeddbe..0000000
--- a/test.s
+++ /dev/null
@@ -1,24 +0,0 @@
-	.org $8000
-reset:
-	lda #$01
-	sta $7005
-loop:
-	lda $7004
-	bne loop
-	lda $7003
-	sta $7000
-	lda #$01
-	sta $7002
-waiting:
-	nop
-	nop
-	nop
-	nop
-	lda $7001
-	bne waiting
-	.byte $ff
-
-	.org $fffa
-	.word $8000
-	.word $8000
-	.word $8000
diff --git a/wozmon.s b/wozmon.s
deleted file mode 100644
index 789e0ed..0000000
--- a/wozmon.s
+++ /dev/null
@@ -1,97 +0,0 @@
-xaml = $24
-xamh = $25
-l = $28
-h = $29
-ysav = $2a
-mode = $2b
-asav = $2c
-curchar = $2d
-
-	.org $fe00
-reset:
-	cld
-	cli
-	lda #$03
-notcr:
-	cmp #$03	; is etx, subst. for esc
-	beq escape
-	iny
-	bpl nextchar
-escape:
-	lda #$5c
-	jsr echo
-getline:
-	lda #$0a
-	jsr echo
-setstor:
-	asl
-setmode:
-	sta mode
-blskip:
-nextchar:
-	ldy #1
-	sty $7005
-nextcharl:
-	lda $7004	; have next char?
-	beq nextcharl
-	lda $7003
-	sta curchar
-	cmp #$2e	; .
-	bcc blskip
-	beq setmode
-	cmp #$3a	; :
-	beq setstor
-	cmp #$52	; R
-	beq run
-	stx l
-	stx h
-	sty ysav
-nexthex:
-	lda curchar
-	eor #$b0
-	cmp #$0a
-	bcc dig
-	adc #$b9
-	cmp #$fa
-	bcc nothex
-dig:
-	asl
-	asl
-	asl
-	asl
-	ldx #$04
-hexshift:
-	asl
-	rol l
-	rol h
-	dex
-	bne hexshift
-	bne nexthex
-nothex:
-	cpy ysav
-	beq escape
-	bit mode
-	jmp nextchar
-run:
-	jmp (xaml)
-echo:
-	sta asav
-	txa
-	pha
-	lda asav
-	tax
-echol:
-	lda $7001
-	cmp #$01
-	beq echol
-	stx $7000
-	lda #$01
-	sta $7002
-	pla
-	tax
-	rts
-
-	.org $fffa
-	.word $f000
-	.word reset
-	.word $0000