Intel 80286 User Manual

PROGRAMMING NUMERIC APPLICATIONS
Table 2-14. Instruction
Set Reference Data (Cont'd.)
FLO FLD source
Exceptions:
I, D
Load real
Execution Clocks
Operands
Operand Word
Code
Coding Example
Typical Range
Transfers
Bytes
8T(i)
20
17-22
0
2 FLD 8T(0)
short-real '
43 38-56
2
2-4 FLD READING [81].PRE88URE
long-real 46
40-60
4
2-4
FLO [BPj.TEMPERATURE
temp-real
57
53-65
5
2-4 FLO 8AVEREADING
FLOCW FLDCW source
Exceptions: None
Load control word
Execution Clocks
Operands
Operand Word Code
Coding Example
Typical Range
Transfers
Bytes
2-bytes
10 7-14 1 2-4
FLDCW CONTROLWORD
FLOENV FLDENV source
Exceptions: None
Load environment
Execution Clocks
Operands
Operand Word Code
Coding Example
Typical
Range
Transfers
Bytes
14-bytes 40 35-45 7
2-4 FLDENV [BP
+ 6]
FLOLG2 FLDLG2 (no operands)
Exceptions: I
Load
IOg102
Execution Clocks
Operands
Operand Word
Code
Coding Example
Typical Range
Transfers Bytes
(no operands)
21 18-24
0
2
FLDLG2
FLOLN2 FLDLN2 (no operands)
Exceptions: I
I n"rllnn.?
---- --';''0'-
Execution Clocks
Operands
Operand Word Code
Coding Example
Typical
Range
Transfers Bytes
(no operands)
20 17-23
0
2 FLDLN2
2-30
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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