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- -----------------------------------------------------------------------------
- ==== RI Debug Library V1.21 (C)1994/5 ====
- -----------------------------------------------------------------------------
-
- Written By Stephen McNamara
- ©1994/5 Leading Edge Software
-
-
- This library is an extension for the Blitz Basic runtime error debugger by
- Leading Edge Software. It allows your program to give the debugger a set
- of simple instructions that are invaluable whilst debugging a program. They
- can only be used in conjunction with version 1.9+ of Blitz Basic 2, and the
- updated Acid library debug.obj.
-
- You should note that these commands can *ONLY* be used in amiga mode since
- they require the debugger to immediately respond to them. When in Blitz
- mode, multitasking is disabled so the debugger is unable to react to the
- commands. When compiling, Blitz will tell you if you try and use the
- commands in Blitz mode.
-
- Additional commands in this library require the related update of the
- debugger. Currently this libraries version number is 1.21, you should have
- a debugger version greater than or equal to this number.
-
-
- A note about variable tracing
- -----------------------------
-
- Variable tracing is only performed whilst the debugger is either single
- stepping a blitz program, or TRACING a program. When a program is running
- on its own, no update of any windows in the debugger is performed.
-
- Command list:
- AddvarTrace variable,variable$,display_mode
- DelVarTrace variable$
- VarTraceWindow
- DisAsmWindow
-
- New commands:
- CopperTrace address[,offset]
-
- New commands (V1.21):
- ProcControl On/OFf
-
-
- Statement : AddVarTrace
- ------------------------------------------------------------------------------
- Modes : Amiga
- Syntax : AddVarTrace var,variable$,display_mode
-
- This command adds a variable trace to the debuggers list of traces. The
- parameter 'var' is the actual variable to add to the list, variable$ is the
- name which will be printed in the variable window in the debugger (usually
- the same as the variable name) and display_mode is the prefered output mode
- for the variables value.
-
- The string variable$ will be displayed inside the variable trace window.
- This will normally be the name of your variable, but on occasion you might
- want some extra info with the name. In these cases, you can make the
- variable$ anything you like, for example "a (counter)" means that we're
- tracing variable a but we want to remember that is being used as a counter
- inside the program.
-
- The output mode can take the following values, depending of course on the
- type of variable:
-
- Bytes/Words/Longs: 0=nocare (default output will be selected)
- 1=decimal
- 2=hexadecimal
- 3=binary
-
- Quicks/Floats: 0=nocare
- 1=decimal
-
- Strings: 0=nocare (defaults to no length/maxlen data)
- 1=no length/maxlen data
- 2=length/maxlen data displayed
-
- The command will automatically work out the 'type' of your variable and
- ensure that the proper output mode is selected.
-
- You should note that you can add the same variable more than once if you
- like. This will be useful if you want to display a variables value in more
- than output mode. For example, you could display the byte sized variable
- MYVAR in both decimal and hexadecimal by 'adding' it twice.
-
-
- Statement : DelVarTrace
- ------------------------------------------------------------------------------
- Modes : Amiga
- Syntax : DelVarTrace variable$
-
- This command instructs the debugger to remove a variable, identified by the
- string variable$, from its trace list. The debugger will look for the name
- variable$ and delete *ALL* occurences of this name from the list. If you
- added the variable trace with a different name from the actual name of the
- variable, you must ensure that the variable$ matchs that which you used to
- add the variable.
-
-
- Statement : VarTraceWindow
- ------------------------------------------------------------------------------
- Modes : Amiga
- Syntax : VarTraceWindow
-
- This command instructs the debugger to open its variable trace window.
- This can save the bother of going to the debugger separately and opening
- the window yourself.
-
-
- Statement : DisAsmWindow
- ------------------------------------------------------------------------------
- Modes : Amiga
- Syntax : DisAsmWindow
-
- This command instructs the debugger to open its disassembly window. The
- disassembly window will open at the address of the command following
- DisAsmWindow. This can be helpful in cases like statements/functions that
- are totally assembly since you cannot evaluate the address of a label thats
- inside a statement/function.
-
-
- Statement : CopperTrace
- ------------------------------------------------------------------------------
- Modes : Amiga
- Syntax : CopperTrace address[,offset]
-
- This command instructs the debugger to open its copper window. If the
- offset parameter is passed with the command, the library assumes that
- 'address' points to a coplist object (e.g. address=addr coplist(0)), it
- then adds the offset and takes the longword at that address as the start
- position for the window. Thus, if you wanted to open the copper window
- right at the start of coplist 0 you'd do:
-
- CopperTrace Addr Coplist(0),4
-
- See the coplist object in the debugger for more information about offsets.
-
-
- Statement : ProcControl
- ------------------------------------------------------------------------------
- Modes : Amiga
- Syntax : ProcControl On/Off
-
- This command allows you to switch the debuggers procedure control on or
- off. If on, the debugger will not step/trace inside of statements and
- functions. Instead it will execute them as single commands.
- This command is actually the same as toggling the gadget on the debugger
- screen.
-