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CHAPTER 4
Using The 162Bug Debugger
Entering Debugger Command Lines ......................................................................... 4-1
Syntactic Variables ............................................................................................. 4-2
Expression as a Parameter........................................................................... 4-3
Address as a Parameter ............................................................................... 4-4
Address Formats.......................................................................................... 4-4
Offset Registers........................................................................................... 4-6
Port Numbers...................................................................................................... 4-8
Entering and Debugging Programs............................................................................ 4-9
Calling System Utilities from User Programs ........................................................... 4-9
Preserving the Debugger Operating Environment................................................... 4-10
162Bug Vector Table and Workspace............................................................... 4-10
Hardware Functions ......................................................................................... 4-11
Exception Vectors Used by 162Bug................................................................. 4-11
Using 162Bug Target Vector Table .......................................................... 4-12
Creating a New Vector Table.................................................................... 4-13
162Bug Generalized Exception Handler................................................... 4-15
Floating Point Support............................................................................................. 4-17
Single Precision Real........................................................................................ 4-18
Double Precision Real ...................................................................................... 4-18
Extended Precision Real................................................................................... 4-18
Packed Decimal Real........................................................................................ 4-19
Scientific Notation............................................................................................ 4-19
The 162Bug Debugger Command Set..................................................................... 4-20
................................................................................................................................. 4-24
APPENDIX A
Configure and Environment Commands
Configure Board Information Block......................................................................... A-1
Set Environment to Bug/Operating System.............................................................. A-3
Configuring the IndustryPacks........................................................................ A-16
APPENDIX B
Disk/Tape Controller Data
Disk/Tape Controller Modules Supported ................................................................ B-1
Disk/Tape Controller Default Configurations .......................................................... B-2
IOT Command Parameters for Supported Floppy Types ......................................... B-5
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