MC68340 datasheet(9/441 Pages) FREESCALE

9 / 441 page

11/2/95

SECTION 1: OVERVIEW

UM Rev.1.0

viii

MC68340 USER'S MANUAL

MOTOROLA

TABLE OF CONTENTS (Continued)

Paragraph

Page

Number

Title

Number

5.1.4

Vector Base Register....................................................................................5-4

5.1.5

Exception Handling......................................................................................5-4

5.1.6

Addressing Modes........................................................................................5-5

5.1.7

Instruction Set................................................................................................5-5

5.1.7.1

Table Lookup and Interpolate Instructions...........................................5-7

5.1.7.2

Low-Power STOP Instruction .................................................................5-7

5.1.8

Processing States.........................................................................................5-7

5.1.9

Privilege States.............................................................................................5-7

5.2

Architecture Summary .....................................................................................5-8

5.2.1

Programming Model.....................................................................................5-8

5.2.2

Registers.........................................................................................................5-10

5.3

Instruction Set....................................................................................................5-11

5.3.1

M68000 Family Compatibility.....................................................................5-11

5.3.1.1

New Instructions........................................................................................5-11

5.3.1.1.1

Low-Power Stop (LPSTOP)................................................................5-11

5.3.1.1.2

Table Lookup and Interpolation (TBL)..............................................5-12

5.3.1.2

Unimplemented Instructions...................................................................5-12

5.3.2

Instruction Format and Notation.................................................................5-12

5.3.3

Instruction Summary ....................................................................................5-15

5.3.3.1

Condition Code Register.........................................................................5-20

5.3.3.2

Data Movement Instructions ...................................................................5-21

5.3.3.3

Integer Arithmetic Operations .................................................................5-22

5.3.3.4

Logic Instructions......................................................................................5-24

5.3.3.5

Shift and Rotate Instructions...................................................................5-24

5.3.3.6

Bit Manipulation Instructions...................................................................5-25

5.3.3.7

Binary-Coded Decimal (BCD) Instructions ..........................................5-26

5.3.3.8

Program Control Instructions..................................................................5-26

5.3.3.9

System Control Instructions....................................................................5-27

5.3.3.10

Condition Tests .........................................................................................5-29

5.3.4

Using the TBL Instructions ..........................................................................5-29

5.3.4.1

Table Example 1: Standard Usage.......................................................5-30

5.3.4.2

Table Example 2: Compressed Table ..................................................5-31

5.3.4.3

Table Example 3: 8-Bit Independent Variable ....................................5-32

5.3.4.4

Table Example 4: Maintaining Precision..............................................5-34

5.3.4.5

Table Example 5: Surface Interpolations.............................................5-36

5.3.5

Nested Subroutine Calls.............................................................................5-36

5.3.6

Pipeline Synchronization with the NOP Instruction................................5-36

5.4

Processing States.............................................................................................5-36

5.4.1

State Transitions...........................................................................................5-37

5.4.2

Privilege Levels.............................................................................................5-37

5.4.2.1

Supervisor Privilege Level......................................................................5-37

5.4.2.2

User Privilege Level.................................................................................5-39

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