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The X86 Microprocessors: Architecture and Programming (8086 to Pentium), 1st Edition
book

The X86 Microprocessors: Architecture and Programming (8086 to Pentium), 1st Edition

by Lyla B. Das
May 2024
Intermediate to advanced content levelIntermediate to advanced
665 pages
23h 2m
English
Pearson India
Content preview from The X86 Microprocessors: Architecture and Programming (8086 to Pentium), 1st Edition
PERIPHERAL INTERFACING – II 377
MOV BL, AL ;copy it to BL
MOV BH, 0 ;BH = 0
ADD SI, BX ;add BX to SI
MOV AL, [SI] ;take corresponding display code
OUT DATR, AL ;send it to data register
JMP NEXT ;continue for more keys
is program displays every key that is pressed. After 8 entries, the FIFO drops the earliest
entries and continues the displaying of the keys pressed.
10.3 | The Programmable Interrupt Controller (PIC) 8259
10.3.1 | Introduction
Before trying to understand the description and working of the programmable interrupt
controller (PIC), it will be worthwhile to read Section 8.1 to get a precise and clear understanding ...
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Publisher Resources

ISBN: 9781282663169