Remove debug printout from PCEAS .incchrpal, plus a bunch of other incremental improvements. #37
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There is now a permanent hashed-and-numbered list of input files that have been opened so that file names can be tracked and displayed. This will be used to track symbol definitions and references.
…ile and line number, rather than the number of procedures defined that pass, so that it doesn't change if code is removed after the first pass.
This is going to be needed when stripping unused .procs within a .procgroup that isn't stripped, or when .ifref is implemented.
The stripping decision has been moved out of proc_reloc(), which is run just before the final pass, and into a new proc_strip() routine that is run at the end of the first pass. Stripped procedures are not printed in the listing file anymore, but are still assembled into the STRIPPED_BANK which is not output, that is what I refer to as them being "cloaked". When PCEAS has decided to run 3 passes, then stripped procedures can instead be "skipped", i.e. not assembled at all. This allows removal of unused .procs within a .procgroup, which could not be done before. Skipping procedures can alter the order and location of symbols that are defined, and so it requires an extra pass, and it isn't possible if the start and end of the .proc are wrapped in complex sections of ".if" code.
Error and warning messages are now sent to stderr to make them easier for an IDE to process, but that can be changed in "defs.h". Introduce PCEAS to the brave-new-world of 1989's <stdarg.h>!
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