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Technical Support
On-Line Manuals
µVision3 User's Guide
µVision3 Overview
User Interface
Creating Applications
Utilities
Debugging
Using the Debugger
CPU Simulation
Start Debugging
Application Program Execution
Debug Windows and Dialogs
Breakpoints
Code Coverage
CPU Registers
Disassembly Window
Logic Analyzer
Setup
Setup in Detail
Restrictions
Memory Window
Memory Map
Output Window - Command
Debug Commands
Variables and Registers
Debug Functions
Execution Profiler
Performance Analyzer
Serial Window
Symbol Window
Toolbox
Watch Window
Expressions
Constants
System Variables
Peripheral Variables
I/O Ports
Serial Ports
Program Variables (Symbols)
Line Numbers
Bit Addresses
Type Specifications
Operators
Differences Between µVision3 and C
Expression Examples
Tips and Tricks
Review Peripherals and CPU Configuration
Simulate I/O Ports
Simulate Interrupts and Clock Inputs
Simulate external I/O Devices
Assign Serial I/O to a PC COM Port
Check Illegal Memory Accesses
Command Input from File
Preset I/O Ports or Memory Contents
Write Debug Output to a File
Keyboard Shortcuts
Debug Commands
Debug Functions
Simulation
Flash Programming
Dialogs
Example Programs
Command Line
Appendix
Expressions
Many debug commands accept numeric expressions as parameters. A numeric expression is a number or a complex expressions that contains numbers, debug objects, or operands. An expression may consist of any of the following components.
| Component | Description |
|---|---|
| Bit Addresses | Bit addresses reference bit-addressable data memory. |
| Constants | Constants are fixed numeric values or character strings. |
| Line Numbers | Line numbers reference code addresses of executable programs. When you compile or assemble a program, the compiler and assembler include line number information in the generated object module. |
| Operators | Operators include +, -, *, and /. Operators may be used to combine subexpressions into a single expression. You may use all operators that are available in the C programming language. |
| Program Variables | Program variables are those variables in your target program. They are often called symbols or symbolic names. |
| System Variables | System variables alter or affect the way µVision3 operates. |
| Peripheral Variables | Peripheral (or SFR) variables allow access the simulated on-chip peripherals. |
| Type Specifications | Type specifications let you specify the data type of an expression or subexpression. |
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