WPS:LGP 21:Software

	LGP-21 orders		LGP-30 differences
	operand		operand
Z	0, 100	Stop	0	Stop
Z	0200, 0300	no operation		not available
Z	4, 8, 16, 32	Skip if any BS n off		not available
-Z	0, 4, 8, 16, 32	Skip if any BS n off .OR. oflo off		not available
B	m	Bring		same as LGP-21
Y	m	Store address		same as LGP-21
R	m	Set return address		same as LGP-21
I	device	Input 6 bits	0	Input 6 bits
-I	device	Input 4 bits	0	Input 4 bits
I	6200	Shift left 6		not available
-I	6200	Shift left 4		not available
D	m	Divide		same as LGP-21
N	m	Multiply: save right		same as LGP-21
M	m	Multiply: save left		same as LGP-21
P	0	Start reader		same as LGP-21
P	device	Print 6 bits of ACC	char	Print 6 bits of order
-P	device	Print 4 bits of ACC	char	Print 4 bits of order
E	n	Extract		same as LGP-21
U	m	Uncond. transfer		same as LGP-21
T	m	Transfer if -ACC		same as LGP-21
-T	m	Transfer if -ACC .OR. TC		same as LGP-21
H	m	Hold		same as LGP-21
C	m	Store and clear ACC		same as LGP-21
A	m	Add		same as LGP-21
S	m	Subtract		same as LGP-21

All works here unless otherwise specified are copyright 2026 by Tom Jennings. Permission is granted for personal use with no remuneration. Corporations or any organization or their agents, employees, consultants or other relationships human or otherwise, expressly prohibited without written permission.