User's 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