A certain ISA has a 32-bit word size, uses single word(32-bit) instructions, has 66 opcodes, 64 registers, and1G of byte-addressable memory. One group ofinstructions in this ISA takes the form:OPCODE | DESTINATION REGISTER | SOURCEREG. | Flag | IMMEDIATE VALUEOrOPCODE | DESTINATION REGISTER | SOURCEREG. 1 | Flag | SOURCE REG. 2A single bit in the instruction ("Flag") is used todifferentiate these two addressing modes.Another group of instructions takes the formOPCODE | SOURCE/DESTINATION REGISTER |PC OFFSETWhere PC Offset is the 2's complement "distance" fromthe current PC to the labelled location. How far (in memory locations) can the label be from aninstruction that references the label, using the addressing mode?You may assume that in this assembly language, eachline of source code assembles to a single one-word(32-bit) instructionO +/- 128 KO +/-1 M+/- 256 KO +/- 2 MO +/- 512 K

A certain ISA has a 32-bit word size, uses single word instructions, has 120 opcodes, 32 registers,…

Answered: You may assume that in this assembly…

You may assume that in this assembly language, each line of source code assembles to a single one-word (32-bit) instruction

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter4: Processor Technology And Architecture

Section: Chapter Questions

Problem 2PE: If a microprocessor has a cycle time of 0.5 nanoseconds, what’s the processor clock rate? If the...

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Concept explainers

Computer Fundamentals

The computer is termed computation. For calculating or computing something the device that has been used is known as the computer. Or we can say that for performing a fast arithmetic operation the device that has been used is a computer. Storing, processing, and retrieving are the main features of a computer. 

Question

A certain ISA has a 32-bit word size, uses single word
(32-bit) instructions, has 66 opcodes, 64 registers, and
1G of byte-addressable memory. One group of
instructions in this ISA takes the form:
OPCODE | DESTINATION REGISTER | SOURCE
REG. | Flag | IMMEDIATE VALUE
Or
OPCODE | DESTINATION REGISTER | SOURCE
REG. 1 | Flag | SOURCE REG. 2
A single bit in the instruction ("Flag") is used to
differentiate these two addressing modes.
Another group of instructions takes the form
OPCODE | SOURCE/DESTINATION REGISTER |
PC OFFSET
Where PC Offset is the 2's complement "distance" from
the current PC to the labelled location.

How far (in memory locations) can the label be from an
instruction that references the label, using the <opcode
I register I pc offset> addressing mode?
You may assume that in this assembly language, each
line of source code assembles to a single one-word
(32-bit) instruction
O +/- 128 K
O +/-1 M
+/- 256 K
O +/- 2 M
O +/- 512 K

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