Motorola MC68030 User Manual

MOTOROLA MC68030 USER’S MANUAL xxv
TABLE OF CONTENTS
Paragraph
Number
Title
Page
Number
Section 1
Introduction
1.1 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.2 MC68030 Extensions to the M68000 Family . . . . . . . . . . . . . . . . . . . 1-4
1.3 Programming Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1.4 Data Types and Addressing Modes. . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
1.5 Instruction Set Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
1.6 Virtual Memory and Virtual Machine Concepts . . . . . . . . . . . . . . . . . 1-12
1.6.1 Virtual Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
1.6.2 Virtual Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
1.7 The Memory Management Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
1.8 Pipelined Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
1.9 The Cache Memories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
Section 2
Data Organization and Addressing Capabilities
2.1 Instruction Operands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.2 Organization of Data in Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.2.1 Data Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.2.2 Address Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.2.3 Control Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.3 Organization of Data in Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.4 Addressing Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
2.4.1 Data Register Direct Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
2.4.2 Address Register Direct Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
2.4.3 Address Register Indirect Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
2.4.4 Address Register Indirect with Postincrement Mode. . . . . . . . . . . . 2-10
2.4.5 Address Register Indirect with Predecrement Mode . . . . . . . . . . . . 2-11
2.4.6 Address Register Indirect with Displacement Mode . . . . . . . . . . . . 2-12
2.4.7 Address Register Indirect with Index (8-Bit Displacement) Mode . . 2-12
2.4.8 Address Register Indirect with Index (Base Displacement) Mode. . 2-13
2.4.9 Memory Indirect Postindexed Mode . . . . . . . . . . . . . . . . . . . . . . . . 2-14
2.4.10 Memory Indirect Preindexed Mode . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
2.4.11 Program Counter Indirect with Displacement Mode . . . . . . . . . . . . 2-16
2.4.12 Program Counter Indirect with Index (8-Bit Displacement) Mode . . 2-16
2.4.13 Program Counter Indirect with Index (Base Displacement) Mode. . 2-17
2.4.14 Program Counter Memory Indirect Postindexed Mode . . . . . . . . . . 2-18
2.4.15 Program Counter Memory Indirect Preindexed Mode. . . . . . . . . . . 2-19
2.4.16 Absolute Short Addressing Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
2.4.17 Absolute Long Addressing Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
2.4.18 Immediate Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
2.5 Effective Address Encoding Summary. . . . . . . . . . . . . . . . . . . . . . . . 2-22

Motorola MC68030 Specifications

General

Brand	Motorola
Model	MC68030
Category	Computer Hardware
Language	English