Intel 80286 User Manual

GET$REAL$ERROR (Store, then Clear,
Exception Flags), 2-37
Handling Numeric Errors, 1-34
Hardware Interface,
1-6
I/O Locations (Dedicated and Reserved),
3-2
IEEE P754 Standard, Implementation,
Appendix C
Indefinite, 1-29
Inexact Result, 1-34
Infinity, 1-25
Infinity Control,
1-19
INIT$REAL$MATH$UNIT (Initialize
Processor Procedure), 2-37
Initialization and Control,
3-2 - 3-7
Instruction Coding and Decoding, A-I
Instruction Executiori Times,
2-21
Instruction Length, 2-23 - 2-38
Integer Bit, 1-16, 1-17, 1-20
Introduction to Numeric Processor 80287,
1-1
Invalid Operation, 1-33
Long Integer Format, 1-16
Long Real Format, 1-16
Machine Instruction Encoding and
Decoding, Appendix A
Masked Response,
1-33 - 1-35
MP (Math Present) Flag, 3-3
NaN (Not a Number), 1-25
NO-WAIT FORM, 2-14
Nonnormal Real Numbers,
1-21
Number System, 1-14, 1-15
Numeric Exceptions, 1-33
Numeric Operands, 2-1
Numeric Overflow and Underflow, 1-34
Numeric Processor Overview,
1-1
Output Format, 4-17
Overflow, 1-20, 1-33,4-16
INDEX
Packed Decimal Notation, 1-15, 1-16
Precision Control, 1-19, 1-36
PLM-286,2-39
Pointers (INstruction/Data),
1-12
Processor Control Instructions,
2-15 - 2-20
Programming Examples,
Comparative, 2-43, 2-44
Conditional Branching, 4-1,
4-2
Exception Handling, 4-3 - 4-6
Floating Point to ASCII Conversion,
4-7 - 4-16
Function Partitioning, 4-14
Special Instructions, 4-15
Programming Interface,
1-5
Pseudo zeros and zeros, 1-24
Real Number Range, 1-17
Real Numbers,
1-15 - 1-17
Recognizing the 80287, 3-2
Register Stack,
1-8, 1-9
RESTORE$REAL$ST ATUS (Restore
Processor State), 2-37
Rounding Control,
1-18
SA VE$REAL$ST ATUS (Save Processor
State), 2-37
Scaling, 4-16
SET$REAL$MODE (Set Exception Masks,
Rounding Precision, and Infinity
Controls), 2-37
Short Integer Format, 1-16
Short Real Format, 1-16
Significand,
1-15
Software Exception Handling, 1-38
Source Operands, 2-2
Status Word, 1-9 - 1-11, 2-42
Tag Word 1-12,
Temporary Real Format, 1-16
Transcendental Instructions, 2-11, 2-12
Trigonometric Calculation Examples,
4-17 - 4-23
Index-3
pcjs.org

Intel 80286 Specifications

General

Processor Type	Microprocessor
Clock Speed	6 MHz to 25 MHz
Transistor Count	134, 000
Addressable Memory	16 MB
Instruction Set	x86
Architecture	x86
Data Bus Width	16-bit
Address Bus Width	24-bit
Operating Modes	Real mode, Protected mode
Process Technology	1.5 µm
Voltage	5V
Introduced	1982
Package	68-pin PGA