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Servicing Personal Computers, 3rd Edition
book

Servicing Personal Computers, 3rd Edition

by Michael Tooley
May 2014
Intermediate to advanced content levelIntermediate to advanced
320 pages
13h 41m
English
Newnes
Content preview from Servicing Personal Computers, 3rd Edition
226 Servicing Personal Computers
8086 registers
Accumulator, AX (AH and AL)
The accumulator is the primary source and destination for data used in a large number of 8086
instructions. The following data movement instructions give some idea of the range of options
available:
MOVBI AL,data Moves
8-bit
immediate data into the least-significant byte of the accumulator
(AL).
Equivalent to a Z80 instruction of the form LD A,data.
MOVBI AH,data Moves
8-bit
immediate data into the most-significant byte of the accumulator
(AH).
MOV AX,register Copies the contents of the specified register to the 16-bit extended
accumulator (AX).
MOVB AH,AL Copies th ...
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Publisher Resources

ISBN: 9781483193670