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C02/files.c

104 lines
2.7 KiB
C

/******************************
* C02 File Handling Routines *
******************************/
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#include <errno.h>
#include "common.h"
#include "files.h"
/* Error - Print textual description of system error *
* and exit with system error code */
void extsys(char *s)
{
perror(s);
exterr(errno);
}
/* Open Source File *
* Uses: srcnam - Source File Name *
* Sets: srcfil - Source File Handle */
void opnsrc()
{
DEBUG("Processing Source File Name '%s'\n", srcnam);
if (strrchr(srcnam, '.') == NULL) //if no extension
strcat(srcnam, ".c02"); // add ".c02"
DEBUG("opening Source File '%s'\n", srcnam);
srcfil = fopen(srcnam, "r"); //open file
if (srcfil == NULL) extsys(srcnam);
}
/* Close Source File */
void clssrc()
{
fclose(srcfil);
}
/* Open Output File *
* Uses: outnam - Output File Name *
* Sets: outfil - Output File Handle */
void opnout()
{
DEBUG("Processing Output File Name '%s'\n", outnam);
if (strlen(outnam) == 0) //if Output File not specified
{
strcpy(outnam, srcnam); //copy Source Name to Ouput Name
char *dot = strrchr(outnam, '.'); //find extension
if (dot != NULL) *dot = 0; //and remove it
DEBUG("Set Output File Name to '%s'\n", outnam);
}
if (strrchr(outnam, '.') == NULL) //if no extension
strcat(outnam, ".asm"); // add ".asm"
DEBUG("Opening Output File '%s'\n", outnam);
outfil = fopen(outnam, "w"); //open file
if (outfil == NULL) extsys(outnam);
}
/* Close Output File */
void clsout()
{
fprintf(outfil, "\n");
fclose(outfil);
}
/* Open Log File *
* Uses: srcnam - Source File Name *
* Sets: logfil - Log File Handle */
void opnlog()
{
strcpy(lognam, srcnam); //set Log File Name to Source File Name
char *dot = strrchr(lognam, '.'); //find file extension
if (dot != NULL) *dot = 0; //and remove it
strcat(lognam, ".log"); //add extension ".asm"
DEBUG("Opening Log File '%s'\n", lognam);
logfil = fopen(lognam, "w");
if (logfil == NULL) extsys(lognam);
}
/* Close Log File *
* Uses: logfil - Log File Handle */
void clslog() {
fclose(logfil);
}
/* Open Include file *
* Uses: incnam - Include File Name *
* Sets: incfil - Include File Handle */
void opninc()
{
DEBUG("Opening include file '%s'\n", incnam);
incfil = fopen(incnam, "r");
if (incfil == NULL) extsys(incnam);
}
/* Close Include File *
* Uses: incfil - Include File Handle */
void clsinc() {
fclose(incfil);
}