SN opcode n i x b p e Displacement Target Address (TA) 1 000000 1 1 0 0 1 0 0110 0000 0000 2 000000 1 1 1 1 0 0 0011 0000 0000 3 000000 1 0 0 0 1 0 0000 0011 0000 4 000000 0 1 0 0 0 0 0000 0011 0000 5 000000 1 1 0 0 0 1 0000 1100 0011 0000 0011

Systems Architecture
7th Edition
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Stephen D. Burd
Chapter4: Processor Technology And Architecture
Section: Chapter Questions
Problem 15VE: A(n) ________________ instruction always alters the instruction execution sequence. A(n)...
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Given the content of memory and the registers below.

i.
ii.
iii.
Indicate the type of addressing mode of each line of instruction below
Deduce the target address
Deduce the Value loaded into accumulator register (A)
 

 

Data at location Memory Address
03600 3030
103000 3600
00C303 6390
003030 C303

Memory content

Base Register (B) 00600
Program Counter (Pc) 003000
Index Register (X) 000090

Register Content
Instructions
Opcodes - LDA = 00

SN opcode n i x b p e Displacement Target Address (TA)
1 000000 1 1 0 0 1 0 0110 0000 0000
2 000000 1 1 1 1 0 0 0011 0000 0000
3 000000 1 0 0 0 1 0 0000 0011 0000
4 000000 0 1 0 0 0 0 0000 0011 0000
5 000000 1 1 0 0 0 1 0000 1100 0011 0000 0011

 

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