diff --git a/keycode.c b/keycode.c
new file mode 100644
index 0000000..e6929bf
--- /dev/null
+++ b/keycode.c
@@ -0,0 +1,208 @@
+#pragma lint - 1
+#pragma optimize - 1
+
+#pragma cda "Key Code" StartUp ShutDown
+
+#include <stdio.h>
+#include <ctype.h>
+#include <string.h>
+#include <misctool.h>
+
+#include <adb.h>
+
+unsigned key = 0;
+unsigned mod = 0;
+
+asm void ReadKey(void) {
+  lda #0
+  sep #0x20
+  loop:
+  lda >0xe0c000
+  bpl loop
+  sta >0xe0c010
+  and #0x7f
+  sta key
+  lda >0xe0c025
+  sta mod
+  rep #0x20
+  rtl
+}
+
+static unsigned char adb_data[128];
+
+static unsigned char adb_data_size = 0;
+
+asm unsigned ReadADBKey(void) {
+
+loop:
+	wai
+	lda adb_data_size
+	beq loop
+	stz adb_data_size
+	rtl
+}
+
+/*
+ * stack:
+ * rtl1 [3]
+ * rtl2 [3]
+ * dataptr [4]
+ * CALLED IN 8-BIT NATIVE MODE!!!
+ */
+asm void adb_poll(void) {
+
+	phb
+	phd
+	phk
+	plb
+	tsc
+	tcd
+	lda [10] ; count
+	tax
+	stx adb_data_size	
+	beq exit
+
+	tay
+loop:
+	lda [10],y
+	bmi clear
+	tax
+	inc adb_data,x
+	bra advance
+clear:
+	and #0xea7f
+	tax
+	stz adb_data,x
+advance:
+	dey
+	bne loop
+
+exit:
+	pld
+	plb
+	clc
+	rtl
+}
+
+void RawADB(unsigned on) {
+
+	static unsigned char buffer = 0x01;
+
+	if (on) {
+		SRQPoll((Pointer)adb_poll, 2);
+		SendInfo(1, (Pointer)&buffer, setModes);
+	} else {
+		SendInfo(1, (Pointer)&buffer, clearModes);
+		/* need to delay this... */
+		WaitUntil(0, 960 * 2); /* 1/8th second */
+		//ClearSRQTable();
+		SRQRemove(2);		
+	}
+
+	putchar(30);
+	putchar(32 + 0);
+	putchar(32 + 23);
+	putchar(29); /* clear line */
+	fputs("Raw ADB ", stdout);
+	fputs(on ? "On" : "Off", stdout);
+
+}
+
+void Clear(void) {
+	putchar(30);
+	putchar(32 + 0);
+	putchar(32 + 11);
+	putchar(29); /* clear line */
+	putchar('\r');
+	putchar(29); /* clear line */
+}
+
+void StartUp(void) {
+
+	unsigned adb = 0;
+	unsigned adb_cmd = 0;
+
+	putchar(0x06); /* cursor off */
+	putchar(0x0c); /* clear screen */
+	fputs("Command-Q: Quit     Command-A: Toggle ADB\r", stdout);
+	RawADB(0);
+
+	for(;;) {
+		if (adb) {
+			unsigned i, n, c;
+			n = ReadADBKey();
+
+			if (n) {
+
+				putchar(30);
+				putchar(32 + 0);
+				putchar(32 + 11);
+				putchar(29); /* clear line */
+
+				fputs("ADB Data: ", stdout);
+				for (i = 0; i < 128; ++i) {
+					if (adb_data[i])
+						printf("%02x ", i);
+				}
+
+				/* command-A */
+				if (adb_data[0x37] && adb_data[0x00]) {
+					RawADB(0);
+					adb = 0;
+					Clear();
+					ReadKey();
+					continue;
+				}
+				/* command-Q */
+				if (adb_data[0x37] && adb_data[0x0c]) {
+					RawADB(0);
+					adb = 0;
+					Clear();
+					ReadKey();
+					return;
+				}
+			}
+		} else {
+			ReadKey();
+			if (key == 'q' || key == 'Q') {
+				if (mod & 0x80) return;
+			}
+			if (key == 'a' || key == 'A') {
+				if (mod & 0x80) {
+					RawADB(1);
+
+					adb = 1;
+					adb_cmd = 0;
+
+					memset(adb_data, 0, sizeof(adb_data));
+					Clear();
+					continue;
+				}
+			}
+
+			/* dca */
+			putchar(30);
+			putchar(32 + 0);
+			putchar(32 + 11);
+			putchar(29); /* clear line */
+			printf("Char: $%02x ", key);
+			if (isprint(key)) printf("%c", key);
+			putchar('\r');
+			putchar(29); /* clear line */
+			printf("Mod:  $%02x ", mod);
+			if (mod & 0x80) fputs("command ", stdout);
+			if (mod & 0x40) fputs("option ", stdout);
+			if (mod & 0x20) fputs("updated ", stdout);
+			if (mod & 0x10) fputs("keypad ", stdout);
+			if (mod & 0x08) fputs("repeat ", stdout);
+			if (mod & 0x04) fputs("caps lock ", stdout);
+			if (mod & 0x02) fputs("control ", stdout);
+			if (mod & 0x01) fputs("shift ", stdout);
+		}
+	}
+
+}
+
+void ShutDown(void) {
+
+}