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https://github.com/cc65/cc65.git
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321 lines
8.6 KiB
C
321 lines
8.6 KiB
C
/*****************************************************************************/
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/* */
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/* main.c */
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/* */
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/* sim65 main program */
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/* */
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/* */
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/* */
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/* (C) 2002-2009, Ullrich von Bassewitz */
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/* Roemerstrasse 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <dirent.h>
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#include <unistd.h>
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/* common */
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#include "abend.h"
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#include "cmdline.h"
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#include "filestat.h"
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#include "print.h"
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#include "version.h"
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#include "xmalloc.h"
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/* sim65 */
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#include "chip.h"
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#include "chippath.h"
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#include "config.h"
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#include "cpucore.h"
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#include "cputype.h"
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#include "error.h"
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#include "global.h"
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#include "memory.h"
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#include "scanner.h"
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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static void Usage (void)
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{
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printf ("Usage: %s [options] file\n"
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"Short options:\n"
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" -C name\t\tUse simulator config file\n"
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" -L dir\t\tSet a chip directory search path\n"
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" -V\t\t\tPrint the simulator version number\n"
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" -d\t\t\tDebug mode\n"
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" -h\t\t\tHelp (this text)\n"
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" -v\t\t\tIncrease verbosity\n"
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"\n"
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"Long options:\n"
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" --chipdir dir\t\tSet a chip directory search path\n"
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" --config name\t\tUse simulator config file\n"
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" --cpu type\t\tSet cpu type\n"
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" --debug\t\tDebug mode\n"
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" --help\t\tHelp (this text)\n"
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" --verbose\t\tIncrease verbosity\n"
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" --version\t\tPrint the simulator version number\n",
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ProgName);
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}
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static void OptChipDir (const char* Opt attribute ((unused)), const char* Arg)
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/* Handle the --chipdir option */
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{
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struct dirent* E;
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/* Get the length of the directory name */
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unsigned DirLen = strlen (Arg);
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/* Open the directory */
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DIR* D = opendir (Arg);
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if (D == 0) {
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AbEnd ("Cannot read directory `%s': %s", Arg, strerror (errno));
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}
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/* Read in all files and treat them as libraries */
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while ((E = readdir (D)) != 0) {
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char* Name;
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struct stat S;
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/* ### Ignore anything but *.so files */
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unsigned NameLen = strlen (E->d_name);
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if (NameLen <= 3) {
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continue;
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}
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if (strcmp (E->d_name + NameLen - 3, ".so") != 0) {
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continue;
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}
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/* Create the full file name */
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Name = xmalloc (DirLen + 1 + NameLen + 1);
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strcpy (Name, Arg);
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strcpy (Name + DirLen, "/");
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strcpy (Name + DirLen + 1, E->d_name);
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/* Stat the file */
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if (FileStat (Name, &S) != 0) {
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Warning ("Cannot stat `%s': %s", Name, strerror (errno));
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xfree (Name);
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continue;
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}
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/* Check if this is a regular file */
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if (S_ISREG (S.st_mode)) {
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/* Treat it as a library */
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LoadChipLibrary (Name);
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}
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/* Free the name */
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xfree (Name);
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}
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/* Close the directory */
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closedir (D);
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}
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static void OptCPU (const char* Opt, const char* Arg)
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/* Handle the --cpu option */
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{
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if (strcmp (Arg, "6502") == 0) {
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CPU = CPU_6502;
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} else if (strcmp (Arg, "65C02") == 0) {
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CPU = CPU_65C02;
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} else {
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AbEnd ("Invalid argument for %s: `%s'", Opt, Arg);
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}
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}
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static void OptConfig (const char* Opt attribute ((unused)), const char* Arg)
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/* Define the config file */
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{
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if (CfgAvail ()) {
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Error ("Cannot use -C twice");
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}
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CfgSetName (Arg);
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}
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static void OptDebug (const char* Opt attribute ((unused)),
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const char* Arg attribute ((unused)))
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/* Simulator debug mode */
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{
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Debug = 1;
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}
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static void OptHelp (const char* Opt attribute ((unused)),
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const char* Arg attribute ((unused)))
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/* Print usage information and exit */
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{
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Usage ();
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exit (EXIT_SUCCESS);
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}
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static void OptVerbose (const char* Opt attribute ((unused)),
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const char* Arg attribute ((unused)))
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/* Increase verbosity */
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{
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++Verbosity;
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}
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static void OptVersion (const char* Opt attribute ((unused)),
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const char* Arg attribute ((unused)))
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/* Print the assembler version */
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{
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fprintf (stderr, "sim65 V%s\n", GetVersionAsString ());
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}
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int main (int argc, char* argv[])
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{
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/* Program long options */
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static const LongOpt OptTab[] = {
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{ "--chipdir", 1, OptChipDir },
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{ "--config", 1, OptConfig },
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{ "--cpu", 1, OptCPU },
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{ "--debug", 0, OptDebug },
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{ "--help", 0, OptHelp },
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{ "--verbose", 0, OptVerbose },
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{ "--version", 0, OptVersion },
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};
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unsigned I;
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/* Initialize the output file name */
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const char* InputFile = 0;
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/* Initialize the cmdline module */
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InitCmdLine (&argc, &argv, "sim65");
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/* Initialize the chip library search paths */
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InitChipPaths ();
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/* Parse the command line */
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I = 1;
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while (I < ArgCount) {
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/* Get the argument */
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const char* Arg = ArgVec[I];
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/* Check for an option */
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if (Arg [0] == '-') {
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switch (Arg [1]) {
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case '-':
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LongOption (&I, OptTab, sizeof(OptTab)/sizeof(OptTab[0]));
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break;
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case 'd':
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OptDebug (Arg, 0);
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break;
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case 'h':
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case '?':
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OptHelp (Arg, 0);
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break;
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case 'v':
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OptVerbose (Arg, 0);
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break;
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case 'C':
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OptConfig (Arg, GetArg (&I, 2));
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break;
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case 'L':
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OptChipDir (Arg, GetArg (&I, 2));
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break;
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case 'V':
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OptVersion (Arg, 0);
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break;
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default:
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UnknownOption (Arg);
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break;
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}
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} else {
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if (InputFile) {
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fprintf (stderr, "additional file specs ignored\n");
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} else {
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InputFile = Arg;
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}
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}
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/* Next argument */
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++I;
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}
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/* Sort the already loaded chips */
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SortChips ();
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/* Check if we have a valid configuration */
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if (!CfgAvail ()) {
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Error ("Simulator configuration missing");
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}
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/* Initialize the simulated CPU memory */
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MemInit ();
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/* Read the config file */
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CfgRead ();
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CPUInit ();
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while (1) {
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CPURun ();
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}
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/* Return an apropriate exit code */
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return EXIT_SUCCESS;
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}
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