Consider the one-bus CPU organization below: 1ofrom external Data Control Unit to external Address Bus ХAR XDI XDI PC+ IR EMIT PSW R R RO R1 R2 R3 R4 R5 R6 R7 Write the sequence of micro-instructions necessary to perform the assembly instructions below: a) ADD [RI], R2, 240 b) SUB [R7], [[RI]], [R2] c) DIV R3, [R1], [[2800]]

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Consider the one-bus CPU organization below:
to/from external Data
Control Unit
to external Address Bus
XAR
XDI
XDI
PC+
IR
EMIT
PSW
R
RO
R1
R2
R3
R4
R5
R6
R7
Write the sequence of micro-instructions necessary to perform the assembly instructions below:
a) ADD [R1], R2, 240
b) SUB [R7], [[RI]], [R2]
c) DIV R3, [R1], [[2800]]
Transcribed Image Text:Consider the one-bus CPU organization below: to/from external Data Control Unit to external Address Bus XAR XDI XDI PC+ IR EMIT PSW R RO R1 R2 R3 R4 R5 R6 R7 Write the sequence of micro-instructions necessary to perform the assembly instructions below: a) ADD [R1], R2, 240 b) SUB [R7], [[RI]], [R2] c) DIV R3, [R1], [[2800]]
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