How to use CDBA for Debugging on the Assembly Level

• compile/assemble and link your source as a Win32 binary. Here's an example with Masm or JWasm. The source (TEST.ASM) is:
  
  

  .386 .model flat .code _start: mov eax,ebx ret end _start

  
  First, assemble and link the source:
  
  
  
  After these steps you should have a TEST.EXE file.
  
  
• launch CDBA with these parameters:
  
  CDBA -g -j TEST.EXE
  
  and you'll see a screen like this:
  
  
  

The debugger has stopped on program entry. Now you can use debugger commands

• R - to see (or modify) the contents of the cpu registers
• T - to single-step thru your program
• G - to run your program
• U - to show a disassembly list
• D - to "dump" memory contents
• A - to enter the line assembler ( if you want to modify your program on the fly )
• Q - to quit debugging
and there are a lot more commands available - but requires to study the debugger help.