Intel 80286 User Manual

THE 80286 INSTRUCTION SET
XLAT -Table Look-up Translation
Opcode Instruction
Clocks Description
07
XLAT mb
5
Set AL to memory byte OS:[BX + unsigned
AL]
07
XLATB
5
Set AL to memory byte OS:[BX + unsigned
AL]
FLAGS MODIFIED
None
FLAGS UNDEFINED
None
OPERATION
When XLAT is executed, AL should be the unsigned index into a table addressed by DS:BX. XLAT
changes the AL register from the table index into the table entry. BX
is unchanged.
PROTECTED MODE EXCEPTIONS
#GP(O) for an illegal memory operand effective address in the CS, DS, or ES segments; #SS(O) for an
illegal address in the SS segment.
REAL ADDRESS MODE EXCEPTIONS
Interrupt 13 for a word operand at offset OFFFFH.
B-115
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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