Writing a quick and dirty assembler and want to give the user the location
of an error. The "assembly language" is Python. If the user wants to
generat some object code they write something like:
Label(LoopLable)
Load(R4)
Dec()
JNZ(LoopLabel)
I can use Python to do all the expression evalutaion, conversion from Python
FP to target FP, include files, macros (done as function definitions). The
functions like Load() generate the approproyte object code.
So, for example, when a label is defined or referenced, I save the File,Line
so if there is not exactly one defintion or no references, I can report the
file location(s) to be considered. In the example, I would want to report
that LoopLable is not referenced, and LoopLabel is not defined.
TIA,
Bill
PS www.SynectixLtd.com is not relevant
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