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82 lines
3.4 KiB
82 lines
3.4 KiB
/* asmdebug.h -- include file for microsoft 80x86 assembler
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**
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** microsoft (r) macro assembler
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** copyright (c) microsoft corp 1986. all rights reserved
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**
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** randy nevin
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*/
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/*** Output debugging information
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* Ross Garmoe
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* Copyright Microsoft Corporation, 1983
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* September 27, 9 1983
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*
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* This package was developed using concepts originally developed by
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* Mark Zibokowski for the C version of the z editor.
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*
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* The following set of macros output debugging information to the
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* debugging file 'd_df'. Output of debugging information is controlled
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* by compile time conditionals and flags set by execution time switches.
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* If the symbol DEBUG is defined at compile time, the macros are
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* compiled to generate debugging information. If DEBUG is not defined,
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* then the macros are not compiled. At execution time, the value of
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* the variable 'd_debug' is compared with the value of the defined symbol
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* DEBFLAG and if any bits match, debugging information is written.
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* If debugging information is to be written, the information level
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* specified in the macro is checked against the level specified at run
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* time and information is written only if the compile level is less than
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* the level specified at run time.
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*
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* The macros are used as follows:
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*
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* Define the global variables 'd_debug', 'd_dlevel', 'd_indent' and 'd_sindent'
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* as integers and 'd_df' as a pointer to FILE. In the argument processing
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* routine set the value of 'd_debug' and 'd_dlevel' and open the trace output
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* file and point to it with the variable 'd_df'. 'd_debug' , 'd_dlevel' and
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* 'd_indent' must be intialized to zero.
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*
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* In any file of the program which is to produce debugging output,
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* include this file 'debug.h' and define the selection symbol DEBFLAG.
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*
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* #include debug.h
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* #define DEBFLAG value
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*
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* Then for any function which is to produce debug output include the
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* following sets of macro calls.
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*
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* At fuction entry:
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*
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* INDEBUG;
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* DEBOUT (level, ( fprintf argument string ));
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*
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* At all function exits:
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*
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* DEBOUT (level, ( fprintf argument string ));
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* OUTDEBUG;
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*
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* At other points of interest:
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*
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* DEBOUT (level, ( fprintf argument string ));
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*
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* Note: For the entry and exit points, the DEBOUT ((...)); string
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* is optional. The INDEBUG and OUTDEBUG macros control the
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* indentation of the debug output to show the nesting levels of
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* function calls
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* Note: The fprintf argument string is of the form:
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* d_df, "format", arg1, arg2,..., argn
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*/
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#ifdef DEBUG
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# define INDEBUG if(d_debug&DEBFLAG)d_indent++
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# define DEBOUT(l,z) if(d_debug&DEBFLAG&&l<=d_dlevel)\
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{for(d_sindent=d_indent;d_sindent;d_sindent--)fprintf(d_df," ");\
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fprintf z ;}else
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# define OUTDEBUG if(d_debug&DEBFLAG)d_indent--
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extern long d_debug, d_dlevel, d_indent; /* debugging flags */
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extern long d_sindent; /* indentation printing temporary */
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extern FILE *d_df; /* pointer to debug output file */
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#else
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# define INDEBUG
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# define DEBOUT(l,z)
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# define OUTDEBUG
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#endif
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