IBM 5150 Technical Reference

LODS = Load String
1010110w
STOS = Store String
1010101w
Control Transfer
CALL = Call
Direct
within segment
11101000 disp-Iow disp-high
Indirect
within segment
mod 0 1 0 rIm
Direct
intersegment
10011010 offset-low offset-high
seg-Iow
seg-high
Indirect intersegment
1111111 mod 0 1 1 rIm
JMP = Unconditional Jump
Direct within segment
1 1 1 0 1 0 0 1
I disp-Iow
disp-high
Direct
within segment-short
1 1 1 0 1 0 1 1 disp
Indirect
within segment
1111111
mod 1 0 0 rIm
Direct intersegment
11101010
offset-low offset-high
seg-Iow seg-high
Indirect intersegment
1111111
mod 1 0 1 rIm
6-12 Instruction Set

IBM 5150 Specifications

General

Processor	Intel 8088
Clock Speed	4.77 MHz
RAM	16 KB - 256 KB
Manufacturer	IBM
Model	5150
Release Year	1981
Storage	5.25-inch floppy drives
Graphics	MDA or CGA
Operating System	IBM PC DOS
Ports	Cassette, keyboard
Expansion Slots	5