Yet another computer museum
The Epson PX-4

The following information is from the PX-4 BASIC REFERENCE MANUAL Appendices

Drive names

From appendix A

Drive Peripherial

A: RAM disk

B: ROM capsule-1

C: ROM capsule-2

D:,E:,F:,G: Floppy disk drives

H: Microcassette drive

I: RAM cartridge

J: ROM cartridge-1

K: ROM cartridge-2

SCRN: LCD screen

LPT0: Printer

COM0: RS-232C interface

COM1: Serial interface (SIO)

COM2: RS-232C input, or SIO
output

KYBD: Keyboard

CAS0: External cassette

Control Codes

From appendix H

Code Function Key usage

Decimal Hexadecimal

1 01 Move the cursor to the be-
ginning of the current line +
2 02 Move the cursor one word
to the left +
3 03 Stop the program execu-
tion. These keys also stop
the automatic number
generation that is initiated
by the AUTO command. , +

5 05 Delete characters to the end
of the line. +

6 06 Move the cursor one word
to the right. +

8 08 Delete the character to the
left. , +

9 09 Move the cursor to the next
tab position. , +

11 0B Move the cursor to the
home position (upper left
corner) of the virtual
screen. , +

12 0C Clear the virtual screen. , +

13 0D Execute a command or
statement. , +

18 12 Toggle between the over-
write and insert modes of
the BASIC screen editor. +

19 13 Suspend the execution of a
BASIC program. , +

24 18 Move the cursor to the end
of the line. +

26 1A Delete all characters to the
end of the screen. +

27 1B Escape code.

28 1C Moves the cursor to the
right.

29 1D Moves the cursor to the
left.

30 1E Moves the cursor upward.

31 1F Moves the cursor downward.

Code	Function	Key usage
Decimal	Hexadecimal
1	01	Move the cursor to the be- ginning of the current line	+
2	02	Move the cursor one word to the left	+
3	03	Stop the program execu- tion. These keys also stop the automatic number generation that is initiated by the AUTO command.	, +
5	05	Delete characters to the end of the line.	+
6	06	Move the cursor one word to the right.	+
8	08	Delete the character to the left.	, +
9	09	Move the cursor to the next tab position.	, +
11	0B	Move the cursor to the home position (upper left corner) of the virtual screen.	, +
12	0C	Clear the virtual screen.	, +
13	0D	Execute a command or statement.	, +
18	12	Toggle between the over- write and insert modes of the BASIC screen editor.	+
19	13	Suspend the execution of a BASIC program.	, +
24	18	Move the cursor to the end of the line.	+
26	1A	Delete all characters to the end of the screen.	+
27	1B	Escape code.
28	1C	Moves the cursor to the right.
29	1D	Moves the cursor to the left.
30	1E	Moves the cursor upward.
31	1F	Moves the cursor downward.

Dip Switch Settings

From appendix N

Country selection

Keyboard type	SW-1	SW-2	SW-3	SW-4
ASCII	ON	ON	ON	ON
France	OFF	ON	ON	ON
German	ON	OFF	ON	ON
England	OFF	OFF	ON	ON
Denmark	ON	ON	OFF	ON
Sweden	OFF	ON	OFF	ON
Italy	ON	OFF	OFF	ON
Spain	OFF	OFF	OFF	ON
Norway	OFF	ON	ON	OFF

LST: device selection

Device name	SW-5	SW-6
Serial interface	OFF	OFF
RS-232C interface	OFF	ON
Cartridge printer	ON	OFF
Printer interface	ON	ON

Latest update: 2003-11-26

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