Intel 210200-002 manual 11010111, Xlat translate-table

XLAT

TRANSLATE XLAT

Operation:	Flags Affected:
AL +- ((BX) + (AL))	None

Description:

XLAT translate-table

XLAT (translate) replac;es a byte in the AL register with a byte from a 256-byte, user- coded translation table. Register BX is assumed to point to the beginning of the table. The byte in AL is used as an index into the table and is replaced by the byte at the offset in the table corresponding to AL's binary value.

The first byte in the table has an offset of O. For example, if AL contains 5H, and the sixth element of the translation table contains 33H, then AL will contain 33H following the instruction. XLAT is useful for translating characters from one code to another, the classic example being ASCII to EBCDIC or the reverse.

Encoding:

11010111

XLAT Operands Clocks Transfers Bytes XLAT Coding Example

source-table 11 - 1 1 XLAT ASCII_TAB

2-163