IBM 5150 Technical Reference

Footnotes:
STIO) = Current Stack
top
STIiI = i'h register below stack top
d = Destination
o - Destination is ST(O)
1 - Destination is STIiI
P= POP
0- No pop
1 - PopST(O)
R= Reverse
o - Destination (op) Source
1 - Source (op) Destination
For
FSQRT:
-O:5ST(O):5 + 00
For
FSCAlE: - 2
'5
:5ST(1)< + 2
'5
and ST(1) integer
For
F2XM1:
0:5ST(0):52-
1
For
FYL2X: O<ST(O)<oo
-
00 < ST( 1) < + 00
For
FYL2XP1:
0< IST(O)I < (2 - ../2)/2
-00<ST(1)<00
For FPTAN:
OsST(0)<n/4
For
FPATAN:
0:5ST(0)<ST(1)< +00
6-24 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