MPCR Status Codes 4-22

Multiprocessor Address Register (MPAR) 4-22 MPCR Powerup Sequence 4-22

Global Control and Status Register (GCSR) Method 4-24Diagnostic Facilities 4-25

187Bug Diagnostic Test Groups 4-27This Chapter Covers 5-1

Entering Debugger Command Lines 5-1 Terminal Input/Output Control 5-1 Debugger Command Syntax 5-3 Syntactic Variables 5-4

Expression as a Parameter 5-4 Address as a Parameter 5-5 Address Formats 5-6 Offset Registers 5-7

Port Numbers 5-7

Entering and Debugging Programs 5-8

Creating a Program with the Assembler/Disassembler 5-8 Downloading an S-Record Object File 5-8

Read the Program from Disk 5-9

Calling System Utilities from User Programs 5-9Preserving the Debugger Operating Environment 5-10

187Bug Vector Table and Workspace 5-10 Hardware Functions 5-11

Exception Vectors Used by 187Bug 5-11 CPU/MPU Registers 5-11

Floating Point Support 5-11Single Precision Real 5-13Double Precision Real 5-13 ScientiÞc Notation 5-14

The 187Bug Debugger Command Set 5-15This Appendix Covers A-1

ConÞguring the Board Information Block A-1Setting Environment to Bug/Operating System A-3Disk/Tape Controller Modules Supported B-1Disk/Tape Controller Default ConÞgurations B-2

IOT Command Parameters for Supported Floppy Types B-4 Network Controller Modules Supported C-1 Introduction E-1

Levels of Implementation E-3

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Motorola MVME187 manual