text: /*****************************************************************************/
  /*                                                                           */
  /*                                  main.c                                   */
  /*                                                                           */
  /*                             cc65 main program                             */
  /*                                                                           */
  /*                                                                           */
  /*                                                                           */
  /* (C) 2000-2015, Ullrich von Bassewitz                                      */
  /*                Roemerstrasse 52                                           */
  /*                D-70794 Filderstadt                                        */
  /* EMail:         uz@cc65.org                                                */
  /*                                                                           */
  /*                                                                           */
  /* This software is provided 'as-is', without any expressed or implied       */
  /* warranty.  In no event will the authors be held liable for any damages    */
  /* arising from the use of this software.                                    */
  /*                                                                           */
  /* Permission is granted to anyone to use this software for any purpose,     */
  /* including commercial applications, and to alter it and redistribute it    */
  /* freely, subject to the following restrictions:                            */
  /*                                                                           */
  /* 1. The origin of this software must not be misrepresented; you must not   */
  /*    claim that you wrote the original software. If you use this software   */
  /*    in a product, an acknowledgment in the product documentation would be  */
  /*    appreciated but is not required.                                       */
  /* 2. Altered source versions must be plainly marked as such, and must not   */
  /*    be misrepresented as being the original software.                      */
  /* 3. This notice may not be removed or altered from any source              */
  /*    distribution.                                                          */
  /*                                                                           */
  /*****************************************************************************/
  
  
  
  #include <stdio.h>
  #include <string.h>
  #include <stdlib.h>
  #include <errno.h>
  
  /* common */
  #include "abend.h"
  #include "chartype.h"
  #include "cmdline.h"
  #include "cpu.h"
  #include "debugflag.h"
  #include "fname.h"
  #include "mmodel.h"
  #include "print.h"
  #include "segnames.h"
  #include "strbuf.h"
  #include "target.h"
  #include "tgttrans.h"
  #include "version.h"
  #include "xmalloc.h"
  
  /* cc65 */
  #include "asmcode.h"
  #include "compile.h"
  #include "codeopt.h"
  #include "error.h"
  #include "global.h"
  #include "incpath.h"
  #include "input.h"
  #include "macrotab.h"
  #include "output.h"
  #include "scanner.h"
  #include "segments.h"
  #include "standard.h"
  
  
  
  /*****************************************************************************/
  /*                                   Code                                    */
  /*****************************************************************************/
  
  
  
  static void Usage (void)
  /* Print usage information to stderr */
  {
      printf ("Usage: %s [options] file\n"
              "Short options:\n"
              "  -Cl\t\t\t\tMake local variables static\n"
              "  -Dsym[=defn]\t\t\tDefine a symbol\n"
              "  -E\t\t\t\tStop after the preprocessing stage\n"
              "  -I dir\t\t\tSet an include directory search path\n"
              "  -O\t\t\t\tOptimize code\n"
              "  -Oi\t\t\t\tOptimize code, inline more code\n"
              "  -Or\t\t\t\tEnable register variables\n"
              "  -Os\t\t\t\tInline some known functions\n"
              "  -T\t\t\t\tInclude source as comment\n"
              "  -V\t\t\t\tPrint the compiler version number\n"
              "  -W warning[,...]\t\tSuppress warnings\n"
              "  -d\t\t\t\tDebug mode\n"
              "  -g\t\t\t\tAdd debug info to object file\n"
              "  -h\t\t\t\tHelp (this text)\n"
              "  -j\t\t\t\tDefault characters are signed\n"
              "  -mm model\t\t\tSet the memory model\n"
              "  -o name\t\t\tName the output file\n"
              "  -r\t\t\t\tEnable register variables\n"
              "  -t sys\t\t\tSet the target system\n"
              "  -v\t\t\t\tIncrease verbosity\n"
              "\n"
              "Long options:\n"
              "  --add-source\t\t\tInclude source as comment\n"
              "  --all-cdecl\t\t\tMake functions default to __cdecl__\n"
              "  --bss-name seg\t\tSet the name of the BSS segment\n"
              "  --check-stack\t\t\tGenerate stack overflow checks\n"
              "  --code-name seg\t\tSet the name of the CODE segment\n"
              "  --codesize x\t\t\tAccept larger code by factor x\n"
              "  --cpu type\t\t\tSet cpu type (6502, 65c02)\n"
              "  --create-dep name\t\tCreate a make dependency file\n"
              "  --create-full-dep name\tCreate a full make dependency file\n"
              "  --data-name seg\t\tSet the name of the DATA segment\n"
              "  --debug\t\t\tDebug mode\n"
              "  --debug-info\t\t\tAdd debug info to object file\n"
              "  --debug-opt name\t\tDebug optimization steps\n"
              "  --dep-target target\t\tUse this dependency target\n"
              "  --disable-opt name\t\tDisable an optimization step\n"
              "  --enable-opt name\t\tEnable an optimization step\n"
              "  --help\t\t\tHelp (this text)\n"
              "  --include-dir dir\t\tSet an include directory search path\n"
              "  --list-opt-steps\t\tList all optimizer steps and exit\n"
              "  --list-warnings\t\tList available warning types for -W\n"
              "  --local-strings\t\tEmit string literals immediately\n"
              "  --memory-model model\t\tSet the memory model\n"
              "  --register-space b\t\tSet space available for register variables\n"
              "  --register-vars\t\tEnable register variables\n"
              "  --rodata-name seg\t\tSet the name of the RODATA segment\n"
              "  --signed-chars\t\tDefault characters are signed\n"
              "  --standard std\t\tLanguage standard (c89, c99, cc65)\n"
              "  --static-locals\t\tMake local variables static\n"
              "  --target sys\t\t\tSet the target system\n"
              "  --verbose\t\t\tIncrease verbosity\n"
              "  --version\t\t\tPrint the compiler version number\n"
              "  --writable-strings\t\tMake string literals writable\n",
              ProgName);
  }
  
  
  
  static void cbmsys (const char* sys)
  /* Define a CBM system */
  {
      DefineNumericMacro ("__CBM__", 1);
      DefineNumericMacro (sys, 1);
  }
  
  
  
  static void SetSys (const char* Sys)
  /* Define a target system */
  {
      switch (Target = FindTarget (Sys)) {
  
          case TGT_NONE:
              break;
  
          case TGT_MODULE:
              AbEnd ("Cannot use `module' as a target for the compiler");
              break;
  
          case TGT_ATARI5200:
              DefineNumericMacro ("__ATARI5200__", 1);
              break;
  
          case TGT_ATARI:
              DefineNumericMacro ("__ATARI__", 1);
              break;
  
          case TGT_ATARIXL:
              DefineNumericMacro ("__ATARI__", 1);
              DefineNumericMacro ("__ATARIXL__", 1);
              break;
  
          case TGT_C16:
              cbmsys ("__C16__");
              break;
  
          case TGT_C64:
              cbmsys ("__C64__");
              break;
  
          case TGT_VIC20:
              cbmsys ("__VIC20__");
              break;
  
          case TGT_C128:
              cbmsys ("__C128__");
              break;
  
          case TGT_PLUS4:
              cbmsys ("__C16__");
              DefineNumericMacro ("__PLUS4__", 1);
              break;
  
          case TGT_CBM510:
              cbmsys ("__CBM510__");
              break;
  
          case TGT_CBM610:
              cbmsys ("__CBM610__");
              break;
  
          case TGT_PET:
              cbmsys ("__PET__");
              break;
  
          case TGT_BBC:
              DefineNumericMacro ("__BBC__", 1);
              break;
  
          case TGT_APPLE2:
              DefineNumericMacro ("__APPLE2__", 1);
              break;
  
          case TGT_APPLE2ENH:
              DefineNumericMacro ("__APPLE2__", 1);
              DefineNumericMacro ("__APPLE2ENH__", 1);
              break;
  
          case TGT_GAMATE:
              DefineNumericMacro ("__GAMATE__", 1);
              break;
  
          case TGT_GEOS_CBM:
              /* Do not handle as a CBM system */
              DefineNumericMacro ("__GEOS__", 1);
              DefineNumericMacro ("__GEOS_CBM__", 1);
              break;
  
          case TGT_GEOS_APPLE:
              DefineNumericMacro ("__GEOS__", 1);
              DefineNumericMacro ("__GEOS_APPLE__", 1);
              break;
  
          case TGT_LUNIX:
              DefineNumericMacro ("__LUNIX__", 1);
              break;
  
          case TGT_ATMOS:
              DefineNumericMacro ("__ATMOS__", 1);
              break;
  
  		case TGT_TELEMON24:
  			DefineNumericMacro("__TELEMON24__", 1);
  			break;
  
          case TGT_NES:
              DefineNumericMacro ("__NES__", 1);
              break;
  
          case TGT_SUPERVISION:
              DefineNumericMacro ("__SUPERVISION__", 1);
              break;
  
          case TGT_LYNX:
              DefineNumericMacro ("__LYNX__", 1);
              break;
  
          case TGT_SIM6502:
              DefineNumericMacro ("__SIM6502__", 1);
              break;
  
          case TGT_SIM65C02:
              DefineNumericMacro ("__SIM65C02__", 1);
              break;
  
          case TGT_OSIC1P:
              DefineNumericMacro ("__OSIC1P__", 1);
              break;
  
          case TGT_PCENGINE:
              DefineNumericMacro ("__PCE__", 1);
              break;
  
          default:
              AbEnd ("Unknown target system type %d", Target);
      }
  
      /* Initialize the translation tables for the target system */
      TgtTranslateInit ();
  }
  
  
  
  static void FileNameOption (const char* Opt, const char* Arg, StrBuf* Name)
  /* Handle an option that remembers a file name for later */
  {
      /* Cannot have the option twice */
      if (SB_NotEmpty (Name)) {
          AbEnd ("Cannot use option `%s' twice", Opt);
      }
      /* Remember the file name for later */
      SB_CopyStr (Name, Arg);
      SB_Terminate (Name);
  }
  
  
  
  static void DefineSym (const char* Def)
  /* Define a symbol on the command line */
  {
      const char* P = Def;
  
      /* The symbol must start with a character or underline */
      if (Def [0] != '_' && !IsAlpha (Def [0])) {
          InvDef (Def);
      }
  
      /* Check the symbol name */
      while (IsAlNum (*P) || *P == '_') {
          ++P;
      }
  
      /* Do we have a value given? */
      if (*P != '=') {
          if (*P != '\0') {
              InvDef (Def);
          }
          /* No value given. Define the macro with the value 1 */
          DefineNumericMacro (Def, 1);
      } else {
          /* We have a value, P points to the '=' character. Since the argument
          ** is const, create a copy and replace the '=' in the copy by a zero
          ** terminator.
          */
          char* Q;
          unsigned Len = strlen (Def)+1;
          char* S = (char*) xmalloc (Len);
          memcpy (S, Def, Len);
          Q = S + (P - Def);
          *Q++ = '\0';
  
          /* Define this as a macro */
          DefineTextMacro (S, Q);
  
          /* Release the allocated memory */
          xfree (S);
      }
  }
  
  
  
  static void CheckSegName (const char* Seg)
  /* Abort if the given name is not a valid segment name */
  {
      /* Print an error and abort if the name is not ok */
      if (!ValidSegName (Seg)) {
          AbEnd ("Segment name `%s' is invalid", Seg);
      }
  }
  
  
  
  static void OptAddSource (const char* Opt attribute ((unused)),
                            const char* Arg attribute ((unused)))
  /* Add source lines as comments in generated assembler file */
  {
      AddSource = 1;
  }
  
  
  
  static void OptAllCDecl (const char* Opt attribute ((unused)),
                           const char* Arg attribute ((unused)))
  /* Make functions default to cdecl instead of fastcall. */
  {
      AutoCDecl = 1;
  }
  
  
  
  static void OptBssName (const char* Opt attribute ((unused)), const char* Arg)
  /* Handle the --bss-name option */
  {
      /* Check for a valid name */
      CheckSegName (Arg);
  
      /* Set the name */
      SetSegName (SEG_BSS, Arg);
  }
  
  
  
  static void OptCheckStack (const char* Opt attribute ((unused)),
                             const char* Arg attribute ((unused)))
  /* Handle the --check-stack option */
  {
      IS_Set (&CheckStack, 1);
  }
  
  
  
  static void OptCodeName (const char* Opt attribute ((unused)), const char* Arg)
  /* Handle the --code-name option */
  {
      /* Check for a valid name */
      CheckSegName (Arg);
  
      /* Set the name */
      SetSegName (SEG_CODE, Arg);
  }
  
  
  
  static void OptCodeSize (const char* Opt, const char* Arg)
  /* Handle the --codesize option */
  {
      unsigned Factor;
      char     BoundsCheck;
  
      /* Numeric argument expected */
      if (sscanf (Arg, "%u%c", &Factor, &BoundsCheck) != 1 ||
          Factor < 10 || Factor > 1000) {
          AbEnd ("Argument for %s is invalid", Opt);
      }
      IS_Set (&CodeSizeFactor, Factor);
  }
  
  
  
  static void OptCreateDep (const char* Opt, const char* Arg)
  /* Handle the --create-dep option */
  {
      FileNameOption (Opt, Arg, &DepName);
  }
  
  
  
  static void OptCreateFullDep (const char* Opt attribute ((unused)),
                                const char* Arg)
  /* Handle the --create-full-dep option */
  {
      FileNameOption (Opt, Arg, &FullDepName);
  }
  
  
  
  static void OptCPU (const char* Opt, const char* Arg)
  /* Handle the --cpu option */
  {
      /* Find the CPU from the given name */
      CPU = FindCPU (Arg);
      if (CPU != CPU_6502 && CPU != CPU_6502X && CPU != CPU_65SC02 &&
          CPU != CPU_65C02 && CPU != CPU_65816 && CPU != CPU_HUC6280) {
          AbEnd ("Invalid argument for %s: `%s'", Opt, Arg);
      }
  }
  
  
  
  static void OptDataName (const char* Opt attribute ((unused)), const char* Arg)
  /* Handle the --data-name option */
  {
      /* Check for a valid name */
      CheckSegName (Arg);
  
      /* Set the name */
      SetSegName (SEG_DATA, Arg);
  }
  
  
  
  static void OptDebug (const char* Opt attribute ((unused)),
                        const char* Arg attribute ((unused)))
  /* Compiler debug mode */
  {
      ++Debug;
  }
  
  
  
  static void OptDebugInfo (const char* Opt attribute ((unused)),
                            const char* Arg attribute ((unused)))
  /* Add debug info to the object file */
  {
      DebugInfo = 1;
  }
  
  
  
  static void OptDebugOpt (const char* Opt attribute ((unused)), const char* Arg)
  /* Debug optimization steps */
  {
      char Buf [128];
      char* Line;
  
      /* Open the file */
      FILE* F = fopen (Arg, "r");
      if (F == 0) {
          AbEnd ("Cannot open `%s': %s", Arg, strerror (errno));
      }
  
      /* Read line by line, ignore empty lines and switch optimization
      ** steps on/off.
      */
      while (fgets (Buf, sizeof (Buf), F) != 0) {
  
          /* Remove trailing control chars. This will also remove the
          ** trailing newline.
          */
          unsigned Len = strlen (Buf);
          while (Len > 0 && IsControl (Buf[Len-1])) {
              --Len;
          }
          Buf[Len] = '\0';
  
          /* Get a pointer to the buffer and remove leading white space */
          Line = Buf;
          while (IsBlank (*Line)) {
              ++Line;
          }
  
          /* Check the first character and enable/disable the step or
          ** ignore the line
          */
          switch (*Line) {
  
              case '\0':
              case '#':
              case ';':
                  /* Empty or comment line */
                  continue;
  
              case '-':
                  DisableOpt (Line+1);
                  break;
  
              case '+':
                  ++Line;
                  /* FALLTHROUGH */
  
              default:
                  EnableOpt (Line);
                  break;
  
          }
  
      }
  
      /* Close the file, no error check here since we were just reading and
      ** this is only a debug function.
      */
      (void) fclose (F);
  }
  
  
  
  static void OptDebugOptOutput (const char* Opt attribute ((unused)), 
                                 const char* Arg attribute ((unused)))
  /* Output optimization steps */
  {
      DebugOptOutput = 1;
  }
  
  
  
  static void OptDepTarget (const char* Opt attribute ((unused)), const char* Arg)
  /* Handle the --dep-target option */
  {
      FileNameOption (Opt, Arg, &DepTarget);
  }
  
  
  
  static void OptDisableOpt (const char* Opt attribute ((unused)), const char* Arg)
  /* Disable an optimization step */
  {
      DisableOpt (Arg);
  }
  
  
  
  static void OptEnableOpt (const char* Opt attribute ((unused)), const char* Arg)
  /* Enable an optimization step */
  {
      EnableOpt (Arg);
  }
  
  
  
  static void OptHelp (const char* Opt attribute ((unused)),
                       const char* Arg attribute ((unused)))
  /* Print usage information and exit */
  {
      Usage ();
      exit (EXIT_SUCCESS);
  }
  
  
  
  static void OptIncludeDir (const char* Opt attribute ((unused)), const char* Arg)
  /* Add an include search path */
  {
      AddSearchPath (SysIncSearchPath, Arg);
      AddSearchPath (UsrIncSearchPath, Arg);
  }
  
  
  
  static void OptListOptSteps (const char* Opt attribute ((unused)),
                               const char* Arg attribute ((unused)))
  /* List all optimizer steps */
  {
      /* List the optimizer steps */
      ListOptSteps (stdout);
  
      /* Terminate */
      exit (EXIT_SUCCESS);
  }
  
  
  
  static void OptListWarnings (const char* Opt attribute ((unused)),
                               const char* Arg attribute ((unused)))
  /* List all warning types */
  {
      /* List the warnings */
      ListWarnings (stdout);
  
      /* Terminate */
      exit (EXIT_SUCCESS);
  }
  
  
  
  static void OptLocalStrings (const char* Opt attribute ((unused)),
                               const char* Arg attribute ((unused)))
  /* Emit string literals immediately */
  {
      IS_Set (&LocalStrings, 1);
  }
  
  
  
  static void OptMemoryModel (const char* Opt, const char* Arg)
  /* Set the memory model */
  {
      mmodel_t M;
  
      /* Check the current memory model */
      if (MemoryModel != MMODEL_UNKNOWN) {
          AbEnd ("Cannot use option `%s' twice", Opt);
      }
  
      /* Translate the memory model name and check it */
      M = FindMemoryModel (Arg);
      if (M == MMODEL_UNKNOWN) {
          AbEnd ("Unknown memory model: %s", Arg);
      } else if (M == MMODEL_HUGE) {
          AbEnd ("Unsupported memory model: %s", Arg);
      }
  
      /* Set the memory model */
      SetMemoryModel (M);
  }
  
  
  
  static void OptRegisterSpace (const char* Opt, const char* Arg)
  /* Handle the --register-space option */
  {
      /* Numeric argument expected */
      if (sscanf (Arg, "%u", &RegisterSpace) != 1 || RegisterSpace > 256) {
          AbEnd ("Argument for option %s is invalid", Opt);
      }
  }
  
  
  
  static void OptRegisterVars (const char* Opt attribute ((unused)),
                               const char* Arg attribute ((unused)))
  /* Handle the --register-vars option */
  {
      IS_Set (&EnableRegVars, 1);
  }
  
  
  
  static void OptRodataName (const char* Opt attribute ((unused)), const char* Arg)
  /* Handle the --rodata-name option */
  {
      /* Check for a valid name */
      CheckSegName (Arg);
  
      /* Set the name */
      SetSegName (SEG_RODATA, Arg);
  }
  
  
  
  static void OptSignedChars (const char* Opt attribute ((unused)),
                              const char* Arg attribute ((unused)))
  /* Make default characters signed */
  {
      IS_Set (&SignedChars, 1);
  }
  
  
  
  static void OptStandard (const char* Opt, const char* Arg)
  /* Handle the --standard option */
  {
      /* Find the standard from the given name */
      standard_t Std = FindStandard (Arg);
      if (Std == STD_UNKNOWN) {
          AbEnd ("Invalid argument for %s: `%s'", Opt, Arg);
      } else if (IS_Get (&Standard) != STD_UNKNOWN) {
          AbEnd ("Option %s given more than once", Opt);
      } else {
          IS_Set (&Standard, Std);
      }
  }
  
  
  
  static void OptStaticLocals (const char* Opt attribute ((unused)),
                               const char* Arg attribute ((unused)))
  /* Place local variables in static storage */
  {
      IS_Set (&StaticLocals, 1);
  }
  
  
  
  static void OptTarget (const char* Opt attribute ((unused)), const char* Arg)
  /* Set the target system */
  {
      SetSys (Arg);
  }
  
  
  
  static void OptVerbose (const char* Opt attribute ((unused)),
                          const char* Arg attribute ((unused)))
  /* Increase verbosity */
  {
      ++Verbosity;
  }
  
  
  
  static void OptVersion (const char* Opt attribute ((unused)),
                          const char* Arg attribute ((unused)))
  /* Print the compiler version */
  {
      fprintf (stderr, "cc65 V%s\n", GetVersionAsString ());
      exit (EXIT_SUCCESS);
  }
  
  
  
  static void OptWarning (const char* Opt attribute ((unused)), const char* Arg)
  /* Handle the -W option */
  {
      StrBuf W = AUTO_STRBUF_INITIALIZER;
  
      /* Arg is a list of suboptions, separated by commas */
      while (Arg) {
  
          const char* Pos;
          int         Enabled = 1;
          IntStack*   S;
  
          /* The suboption may be prefixed with '-' or '+' */
          if (*Arg == '-') {
              Enabled = 0;
              ++Arg;
          } else if (*Arg == '+') {
              /* This is the default */
              ++Arg;
          }
  
          /* Get the next suboption */
          Pos = strchr (Arg, ',');
          if (Pos) {
              SB_CopyBuf (&W, Arg, Pos - Arg);
              Arg = Pos + 1;
          } else {
              SB_CopyStr (&W, Arg);
              Arg = 0;
          }
          SB_Terminate (&W);
  
          /* Search for the warning */
          S = FindWarning (SB_GetConstBuf (&W));
          if (S == 0) {
              InvArg (Opt, SB_GetConstBuf (&W));
          }
          IS_Set (S, Enabled);
      }
  
      /* Free allocated memory */
      SB_Done (&W);
  }
  
  
  
  static void OptWritableStrings (const char* Opt attribute ((unused)),
                                  const char* Arg attribute ((unused)))
  /* Make string literals writable */
  {
      IS_Set (&WritableStrings, 1);
  }
  
  
  
  int main (int argc, char* argv[])
  {
      /* Program long options */
      static const LongOpt OptTab[] = {
          { "--add-source",       0,      OptAddSource            },
          { "--all-cdecl",        0,      OptAllCDecl             },
          { "--bss-name",         1,      OptBssName              },
          { "--check-stack",      0,      OptCheckStack           },
          { "--code-name",        1,      OptCodeName             },
          { "--codesize",         1,      OptCodeSize             },
          { "--cpu",              1,      OptCPU                  },
          { "--create-dep",       1,      OptCreateDep            },
          { "--create-full-dep",  1,      OptCreateFullDep        },
          { "--data-name",        1,      OptDataName             },
          { "--debug",            0,      OptDebug                },
          { "--debug-info",       0,      OptDebugInfo            },
          { "--debug-opt",        1,      OptDebugOpt             },
          { "--debug-opt-output", 0,      OptDebugOptOutput       },
          { "--dep-target",       1,      OptDepTarget            },
          { "--disable-opt",      1,      OptDisableOpt           },
          { "--enable-opt",       1,      OptEnableOpt            },
          { "--help",             0,      OptHelp                 },
          { "--include-dir",      1,      OptIncludeDir           },
          { "--list-opt-steps",   0,      OptListOptSteps         },
          { "--list-warnings",    0,      OptListWarnings         },
          { "--local-strings",    0,      OptLocalStrings         },
          { "--memory-model",     1,      OptMemoryModel          },
          { "--register-space",   1,      OptRegisterSpace        },
          { "--register-vars",    0,      OptRegisterVars         },
          { "--rodata-name",      1,      OptRodataName           },
          { "--signed-chars",     0,      OptSignedChars          },
          { "--standard",         1,      OptStandard             },
          { "--static-locals",    0,      OptStaticLocals         },
          { "--target",           1,      OptTarget               },
          { "--verbose",          0,      OptVerbose              },
          { "--version",          0,      OptVersion              },
          { "--writable-strings", 0,      OptWritableStrings      },
      };
  
      unsigned I;
  
      /* Initialize the input file name */
      const char* InputFile  = 0;
  
      /* Initialize the cmdline module */
      InitCmdLine (&argc, &argv, "cc65");
  
      /* Initialize the default segment names */
      InitSegNames ();
  
      /* Initialize the include search paths */
      InitIncludePaths ();
  
      /* Parse the command line */
      I = 1;
      while (I < ArgCount) {
  
          const char* P;
  
          /* Get the argument */
          const char* Arg = ArgVec[I];
  
          /* Check for an option */
          if (Arg[0] == '-') {
  
              switch (Arg[1]) {
  
                  case '-':
                      LongOption (&I, OptTab, sizeof(OptTab)/sizeof(OptTab[0]));
                      break;
  
                  case 'd':
                      OptDebug (Arg, 0);
                      break;
  
                  case 'h':
                  case '?':
                      OptHelp (Arg, 0);
                      break;
  
                  case 'g':
                      OptDebugInfo (Arg, 0);
                      break;
  
                  case 'j':
                      OptSignedChars (Arg, 0);
                      break;
  
                  case 'o':
                      SetOutputName (GetArg (&I, 2));
                      break;
  
                  case 'r':
                      OptRegisterVars (Arg, 0);
                      break;
  
                  case 't':
                      OptTarget (Arg, GetArg (&I, 2));
                      break;
  
                  case 'u':
                      OptCreateDep (Arg, 0);
                      break;
  
                  case 'v':
                      OptVerbose (Arg, 0);
                      break;
  
                  case 'C':
                      P = Arg + 2;
                      while (*P) {
                          switch (*P++) {
                              case 'l':
                                  OptStaticLocals (Arg, 0);
                                  break;
                              default:
                                  UnknownOption (Arg);
                                  break;
                          }
                      }
                      break;
  
                  case 'D':
                      DefineSym (GetArg (&I, 2));
                      break;
  
                  case 'E':
                      PreprocessOnly = 1;
                      break;
  
                  case 'I':
                      OptIncludeDir (Arg, GetArg (&I, 2));
                      break;
  
                  case 'O':
                      IS_Set (&Optimize, 1);
                      P = Arg + 2;
                      while (*P) {
                          switch (*P++) {
                              case 'i':
                                  IS_Set (&CodeSizeFactor, 200);
                                  break;
                              case 'r':
                                  IS_Set (&EnableRegVars, 1);
                                  break;
                              case 's':
                                  IS_Set (&InlineStdFuncs, 1);
                                  break;
                          }
                      }
                      break;
  
                  case 'T':
                      OptAddSource (Arg, 0);
                      break;
  
                  case 'V':
                      OptVersion (Arg, 0);
                      break;
  
                  case 'W':
                      OptWarning (Arg, GetArg (&I, 2));
                      break;
  
                  default:
                      UnknownOption (Arg);
                      break;
              }
          } else {
              if (InputFile) {
                  fprintf (stderr, "additional file specs ignored\n");
              } else {
                  InputFile = Arg;
              }
          }
  
          /* Next argument */
          ++I;
      }
  
      /* Did we have a file spec on the command line? */
      if (InputFile == 0) {
          AbEnd ("No input files");
      }
  
      /* Add the default include search paths. */
      FinishIncludePaths ();
  
      /* Create the output file name if it was not explicitly given */
      MakeDefaultOutputName (InputFile);
  
      /* If no CPU given, use the default CPU for the target */
      if (CPU == CPU_UNKNOWN) {
          if (Target != TGT_UNKNOWN) {
              CPU = GetTargetProperties (Target)->DefaultCPU;
          } else {
              CPU = CPU_6502;
          }
      }
  
      /* If no memory model was given, use the default */
      if (MemoryModel == MMODEL_UNKNOWN) {
          SetMemoryModel (MMODEL_NEAR);
      }
  
      /* If no language standard was given, use the default one */
      if (IS_Get (&Standard) == STD_UNKNOWN) {
          IS_Set (&Standard, STD_DEFAULT);
      }
  
      /* Go! */
      Compile (InputFile);
  
      /* Create the output file if we didn't had any errors */
      if (PreprocessOnly == 0 && (ErrorCount == 0 || Debug)) {
  
          /* Emit literals, externals, do cleanup and optimizations */
          FinishCompile ();
  
          /* Open the file */
          OpenOutputFile ();
  
          /* Write the output to the file */
          WriteAsmOutput ();
          Print (stdout, 1, "Wrote output to `%s'\n", OutputFilename);
  
          /* Close the file, check for errors */
          CloseOutputFile ();
  
          /* Create dependencies if requested */
          CreateDependencies ();
      }
  
      /* Return an apropriate exit code */
      return (ErrorCount > 0)? EXIT_FAILURE : EXIT_SUCCESS;
  }
  