Evaluate the effect of the instruction LDR r1, [r2], #4, given the initial values below. What is the final values of (and pointed by) all the registers? What is the addressing mode of the given instruction? Registers: r1 = 30 r2 = 1004 r3 = 50 Memory Address Value 1000 15 1004 20 1008 1012 13 O r1=20,r2=1004, r3=50, pre-indexing auto-indexing mode O r1=20, r2=20, r3=20, pre-indexing mode O r1=20, r2=1004, r3=30, post auto-indexing mode O r1=20, r2=1008, r3=50, auto-indexing post indexing mode

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
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Evaluate the effect of the instruction LDR r1, [r2], #4, given the initial values below. What is the final
values of (and pointed by) all the registers? What is the addressing mode of the given instruction?
Registers:
r1 = 30
r2 = 1004
r3 = 50
Memory
Address Value
1000
15
1004
20
1008
5
1012
13
O r1=20,r2=1004, r3=50, pre-indexing auto-indexing mode
O r1=20, r2=20, r3=20, pre-indexing mode
O r1=20, r2=1004, r3=30, post auto-indexing mode
O r1=20, r2=1008, r3=50, auto-indexing post indexing mode
Transcribed Image Text:Evaluate the effect of the instruction LDR r1, [r2], #4, given the initial values below. What is the final values of (and pointed by) all the registers? What is the addressing mode of the given instruction? Registers: r1 = 30 r2 = 1004 r3 = 50 Memory Address Value 1000 15 1004 20 1008 5 1012 13 O r1=20,r2=1004, r3=50, pre-indexing auto-indexing mode O r1=20, r2=20, r3=20, pre-indexing mode O r1=20, r2=1004, r3=30, post auto-indexing mode O r1=20, r2=1008, r3=50, auto-indexing post indexing mode
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