Computers use addressing mode strategies for Specifying rules for modifying or interpreting address field of the instruction giving programming versatility to the user by providing facilities as pointers to memory counters for loop control All the above To reduce no. of bits in the field of instruction

Computers use addressing mode strategies for Specifying rules for modifying or interpreting address field of the instruction giving programming versatility to the user by providing facilities as pointers to memory counters for loop control All the above To reduce no. of bits in the field of instruction

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

Problem 1PE

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2- Given a control memory microinstruction size 30 bits. Change the instruction shown in Figure 7-6, assuming that the fields; F1, F2 are 3bits each. F3 is increased to 4 bits, BR and CD remain at 2 bits each, the address field is the one that changes. Assume that each microinstruction occupies one control memory word. Complete the following table; control memory size in bytes control address register size in bits subroutine register size in bits 3 3 2 2 7 the incrementer size in bits F1 F2 F3 CD BR AD Microinstruction Format: total size is 20 bits Figure 7-6
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