Programmer's Workbench Information

Using the Programmer's Workbench (PWB)

At the school, be sure to run PWB under WINDOWS
Under Options, select Build options, then select Debug Options
Be sure that your file has a .ASM extension when you save it, otherwise PWB will not recognize it.
To start a new program, select File New from the menu
To open an existing program, select File Open from the menu
To save a file, select File Save from the menu
To exit PWB, select File Exit from the menu
To create an executable file, select Project Build from the menu
If it was successful, then you will be able to run or debug it from an option list
If it was unsuccessful, you will be allowed to view the results: this will show you your errors
To run an executable that has already been created, select Run Execute
To debug an executable that has already been created, select Run Debug

Using the CodeView debugger (CV)

Before calling up CV, you must select from PWB: Options, select Build options, then select Debug Options - then rebuild your source, then debug
To start CV, select Run Debug after you have successfully created an executable
Some windows that are useful

Source Windows - these show you the source file
Memory Windows - you can look at your data segment in such a window
Register/Flag Window - this shows you the contents of the registers and flags, you can also see them change
Watch Window - shows you the contants of all the variables you are watching

Data Watch - you specify the name of a variable to examine, you will see its contents
Data Breakpoint - you can specify that you want the program to stop executing when you reach a particular line
F10 - step to next instruction, do not step into subroutines, just execute them as one instruction
F8 - trace to next instruction, if it is a call to a subroutine, go to first instruction in subroutine
F5 - go to next breakpoint, or to the end of the program if there are no more breakpoints
F4 - look at program output