Table of Contents
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TABLE OF CONTENTS (Continued)
Title
Page
Number
4.4
Instruction Details ....................................................................................... 4-18
4.5
Instruction Format Summary .................................................................... .4-175
4.6
Table Lookup and Interpolation Instructions ........................................ .4-195
4.6.1
Table Example 1: Standard Usage ................................................... .4-196
4.6.2
Table Example 2: Compressed Table .............................................. .4-197
4.6.3
Table Example 3: 8-Bit Independent Variable ............................... .4-199
4.6.4
Table Example 4: Maintaining Precision .......................................... 4-201
4.6.5
Table Example 5: Surface Interpolations ......................................... .4-203
4.7
Nested Subroutine Calls .......................................................................... .4-203
4.8
Pipeline Synchronization with the NOP Instruction ............................. .4-203
5.1
5.2
5.2.1
5.2.2
5.2.3
5.3
5.3.1
5.3.1.1
5.3.1.2
5.3.1.3
5.3.1.4
5.3.1.5
Section 5
Processing States
State Transitions ......................................................................................... 5-1
Privilege Levels ........................................................................................... 5-2
Supervisor Privilege Level ................................................................... 5-2
User Privilege Level.. ............................................................................. 5-2
Changing Privilege Level ..................................................................... 5-3
Types of Address Space ........................................................................... 5-3
CPU Space Access ................................................................................ 5-4
Type 0000 - Breakpoint.. ................................................................ 5-5
Type 0001 - MMU Access .............................................................. 5-5
Type 0010 - Coprocessor Access ................................................ 5-5
Type 0011 - Internal Register Access .......................................... 5-5
Type 1111 - Interrupt Acknowledge ............................................. 5-6
Section 6
Exception Processing
6.1
Definition of Exception Processing .......................................................... 6-1
6.1.1
Exception Vectors ....................................................................................... 6-1
6.1 .2
Types of Exceptions ............................................................................... 6-3
6.1.3
Exception Processing Sequence ........................................................ 6-3
6.1.4
Exception Stack Frame ......................................................................... 6-4
6.1.5
Multiple Exceptions ................................................................................ 6-4
6.2
Processing of Specific Exceptions .......................................................... 6-6
6.2.1
Reset ......................................................................................................... 6-6
6.2.2
'Bus Error .................................................................................................. 6-8
6.2.3
Address Error .......................................................................................... 6-9
6.2.4
Instruction Traps ..................................................................................... 6-9
6.2.5
Software Breakpoints ............................................................................ 6-10
6.2.6
Hardware Breakpoints ........................................................................... 6-10
6.2.7
Format Error ............................................................................................. 6-11
6.2.8
Illegal or Unimplemented Instructions ................................................ 6-11
·6.2.9
Privilege Violations ................................................................................ 6-12
CPU32 REFERENCE MANUAL
MOTOROLA
vii
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