Intel 80286 User Manual

BASIC INSTRUCTION SET
[2J
l'
1
1
1
1
1 0
1 0 1 0
1
1
l'
o 1
o l'
l'
1 0 o 1
o 1 0
BEFORE RCL
rO--i
1
1
1
1 0
1 0 1 0
1
1
1
1
1 0 1 0
1
1
l'
1 0
o
1 0 1 0 l' Il
AFTER RCL BY 1 BIT _
0
--/1
1
l' l'
o 1
o 1 0
l' l'
1 0
o
l'
1
1 0
o
1 0
AFTER RCL BY 16 BITS
OPERAND
RCL rotates the bits in the memory or register operand to the left In the same way as ROL except that RCL treats CF as a I·bit
extension of the operand. Note that a 16·bit RCL produces the same result as a I·blt RCR (though It takes much longer to execute).
This Instruction also operates on byte operands.
G30108
Figure 3-11. RCL
l'
l' l'
o I 0
o l'
l'
1 0 1 0
l' l'
o 1
o 1
0
1 0 []
BEFORE RCA
r[1
1
1 l'
l'
1 0
o 1
o
l'
l'
1 0
1 0
l' l'
AFTER RCR BY 1 BIT ___
I 0
o l'
l' l' l'
o 1 0
1 0
l' l'
1 0
o l'
l'
1 0
AFTER RCA BY 3 BITS
OPERAND
RCR rotates the bits In the memory or register oporand to the right In the same way as ROR except that RCR treats CF as a I·blt
extension 01 the operand. This Instruction also operates on byte operands.
G30108
Figure 3-12. RCR
3-15
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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