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git-svn-id: svn://svn.cc65.org/cc65/trunk@1230 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2002-04-08 18:52:47 +00:00
parent a8698b30e8
commit 09f288e43d
4 changed files with 732 additions and 7 deletions
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56
src/sim65/main.c
View File

@ -50,8 +50,11 @@
#include "chippath.h"
#include "cpucore.h"
#include "cputype.h"
#include "error.h"
#include "global.h"
#include "memory.h"
#include "scanner.h"
/*****************************************************************************/
@ -65,12 +68,16 @@ static void Usage (void)
fprintf (stderr,
"Usage: %s [options] file\n"
"Short options:\n"
" -C name\t\tUse simulator config file\n"
" -L dir\t\tSet a chip directory search path\n"
" -V\t\t\tPrint the simulator version number\n"
" -d\t\t\tDebug mode\n"
" -h\t\t\tHelp (this text)\n"
" -v\t\t\tIncrease verbosity\n"
"\n"
"Long options:\n"
"\n"
"Long options:\n"
" --chipdir dir\t\tSet a chip directory search path\n"
" --config name\t\tUse simulator config file\n"
" --cpu type\t\tSet cpu type\n"
" --debug\t\tDebug mode\n"
" --help\t\tHelp (this text)\n"
@ -81,6 +88,14 @@ static void Usage (void)
static void OptChipDir (const char* Opt attribute ((unused)), const char* Arg)
/* Handle the --chipdir option */
{
AddChipPath (Arg);
}
static void OptCPU (const char* Opt, const char* Arg)
/* Handle the --cpu option */
{
@ -95,8 +110,19 @@ static void OptCPU (const char* Opt, const char* Arg)
static void OptConfig (const char* Opt attribute ((unused)), const char* Arg)
/* Define the config file */
{
if (CfgAvail ()) {
Error ("Cannot use -C twice");
}
CfgSetName (Arg);
}
static void OptDebug (const char* Opt attribute ((unused)),
const char* Arg attribute ((unused)))
const char* Arg attribute ((unused)))
/* Simulator debug mode */
{
Debug = 1;
@ -128,7 +154,7 @@ static void OptVersion (const char* Opt attribute ((unused)),
/* Print the assembler version */
{
fprintf (stderr,
"cc65 V%u.%u.%u\n",
"sim65 V%u.%u.%u\n",
VER_MAJOR, VER_MINOR, VER_PATCH);
}
@ -138,9 +164,11 @@ int main (int argc, char* argv[])
{
/* Program long options */
static const LongOpt OptTab[] = {
{ "--chipdir", 1, OptChipDir },
{ "--config", 1, OptConfig },
{ "--cpu", 1, OptCPU },
{ "--debug", 0, OptDebug },
{ "--help", 0, OptHelp },
{ "--help", 0, OptHelp },
{ "--verbose", 0, OptVerbose },
{ "--version", 0, OptVersion },
};
@ -173,7 +201,7 @@ int main (int argc, char* argv[])
OptDebug (Arg, 0);
break;
case 'h':
case 'h':
case '?':
OptHelp (Arg, 0);
break;
@ -182,6 +210,14 @@ int main (int argc, char* argv[])
OptVerbose (Arg, 0);
break;
case 'C':
OptConfig (Arg, GetArg (&I, 2));
break;
case 'L':
OptChipDir (Arg, GetArg (&I, 2));
break;
case 'V':
OptVersion (Arg, 0);
break;
@ -202,6 +238,14 @@ int main (int argc, char* argv[])
++I;
}
/* Check if we have a valid configuration */
if (!CfgAvail ()) {
Error ("Simulator configuration missing");
}
/* Read the config file */
// CfgRead ();
/* Initialize modules */
AddChipPath ("chips");
LoadChipLibrary ("ram.so");

3
src/sim65/make/gcc.mak
View File

@ -18,7 +18,8 @@ OBJS = chip.o \
error.o \
global.o \
main.o \
memory.o
memory.o \
scanner.o
LIBS = $(COMMON)/common.a

516
src/sim65/scanner.c Normal file
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@ -0,0 +1,516 @@
/*****************************************************************************/
/* */
/* scanner.c */
/* */
/* Configuration file scanner for the sim65 6502 simulator */
/* */
/* */
/* */
/* (C) 1998-2002 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* EMail: uz@musoftware.de */
/* */
/* */
/* 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 <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <ctype.h>
/* common */
#include "xsprintf.h"
/* sim65 */
#include "error.h"
#include "scanner.h"
/*****************************************************************************/
/* Data */
/*****************************************************************************/
/* Current token and attributes */
cfgtok_t CfgTok;
char CfgSVal [CFG_MAX_IDENT_LEN+1];
unsigned long CfgIVal;
/* Error location */
unsigned CfgErrorLine;
unsigned CfgErrorCol;
/* Input sources for the configuration */
static const char* CfgName = 0;
static const char* CfgBuf = 0;
/* Other input stuff */
static int C = ' ';
static unsigned InputLine = 1;
static unsigned InputCol = 0;
static FILE* InputFile = 0;
/*****************************************************************************/
/* Error handling */
/*****************************************************************************/
void CfgWarning (const char* Format, ...)
/* Print a warning message adding file name and line number of the config file */
{
char Buf [512];
va_list ap;
va_start (ap, Format);
xvsprintf (Buf, sizeof (Buf), Format, ap);
va_end (ap);
Warning ("%s(%u): %s", CfgGetName(), CfgErrorLine, Buf);
}
void CfgError (const char* Format, ...)
/* Print an error message adding file name and line number of the config file */
{
char Buf [512];
va_list ap;
va_start (ap, Format);
xvsprintf (Buf, sizeof (Buf), Format, ap);
va_end (ap);
Error ("%s(%u): %s", CfgGetName(), CfgErrorLine, Buf);
}
/*****************************************************************************/
/* Code */
/*****************************************************************************/
static void NextChar (void)
/* Read the next character from the input file */
{
if (CfgBuf) {
/* Read from buffer */
C = (unsigned char)(*CfgBuf);
if (C == 0) {
C = EOF;
} else {
++CfgBuf;
}
} else {
/* Read from the file */
C = getc (InputFile);
}
/* Count columns */
if (C != EOF) {
++InputCol;
}
/* Count lines */
if (C == '\n') {
++InputLine;
InputCol = 0;
}
}
static unsigned DigitVal (int C)
/* Return the value for a numeric digit */
{
if (isdigit (C)) {
return C - '0';
} else {
return toupper (C) - 'A' + 10;
}
}
void CfgNextTok (void)
/* Read the next token from the input stream */
{
unsigned I;
Again:
/* Skip whitespace */
while (isspace (C)) {
NextChar ();
}
/* Remember the current position */
CfgErrorLine = InputLine;
CfgErrorCol = InputCol;
/* Identifier? */
if (C == '_' || isalpha (C)) {
/* Read the identifier */
I = 0;
while (C == '_' || isalnum (C)) {
if (I < CFG_MAX_IDENT_LEN) {
CfgSVal [I++] = C;
}
NextChar ();
}
CfgSVal [I] = '\0';
CfgTok = CFGTOK_IDENT;
return;
}
/* Hex number? */
if (C == '$') {
NextChar ();
if (!isxdigit (C)) {
Error ("%s(%u): Hex digit expected", CfgName, InputLine);
}
CfgIVal = 0;
while (isxdigit (C)) {
CfgIVal = CfgIVal * 16 + DigitVal (C);
NextChar ();
}
CfgTok = CFGTOK_INTCON;
return;
}
/* Decimal number? */
if (isdigit (C)) {
CfgIVal = 0;
while (isdigit (C)) {
CfgIVal = CfgIVal * 10 + DigitVal (C);
NextChar ();
}
CfgTok = CFGTOK_INTCON;
return;
}
/* Other characters */
switch (C) {
case '{':
NextChar ();
CfgTok = CFGTOK_LCURLY;
break;
case '}':
NextChar ();
CfgTok = CFGTOK_RCURLY;
break;
case ';':
NextChar ();
CfgTok = CFGTOK_SEMI;
break;
case '.':
NextChar ();
CfgTok = CFGTOK_DOT;
break;
case ',':
NextChar ();
CfgTok = CFGTOK_COMMA;
break;
case '=':
NextChar ();
CfgTok = CFGTOK_EQ;
break;
case ':':
NextChar ();
CfgTok = CFGTOK_COLON;
break;
case '\"':
NextChar ();
I = 0;
while (C != '\"') {
if (C == EOF || C == '\n') {
Error ("%s(%u): Unterminated string", CfgName, InputLine);
}
if (I < CFG_MAX_IDENT_LEN) {
CfgSVal [I++] = C;
}
NextChar ();
}
NextChar ();
CfgSVal [I] = '\0';
CfgTok = CFGTOK_STRCON;
break;
case '#':
/* Comment */
while (C != '\n' && C != EOF) {
NextChar ();
}
if (C != EOF) {
goto Again;
}
CfgTok = CFGTOK_EOF;
break;
case EOF:
CfgTok = CFGTOK_EOF;
break;
default:
Error ("%s(%u): Invalid character `%c'", CfgName, InputLine, C);
}
}
void CfgConsume (cfgtok_t T, const char* Msg)
/* Skip a token, print an error message if not found */
{
if (CfgTok != T) {
CfgError (Msg);
}
CfgNextTok ();
}
void CfgConsumeSemi (void)
/* Consume a semicolon */
{
CfgConsume (CFGTOK_SEMI, "`;' expected");
}
void CfgConsumeColon (void)
/* Consume a colon */
{
CfgConsume (CFGTOK_COLON, "`:' expected");
}
void CfgOptionalComma (void)
/* Consume a comma if there is one */
{
if (CfgTok == CFGTOK_COMMA) {
CfgNextTok ();
}
}
void CfgOptionalAssign (void)
/* Consume an equal sign if there is one */
{
if (CfgTok == CFGTOK_EQ) {
CfgNextTok ();
}
}
void CfgAssureInt (void)
/* Make sure the next token is an integer */
{
if (CfgTok != CFGTOK_INTCON) {
CfgError ("Integer constant expected");
}
}
void CfgAssureStr (void)
/* Make sure the next token is a string constant */
{
if (CfgTok != CFGTOK_STRCON) {
CfgError ("String constant expected");
}
}
void CfgAssureIdent (void)
/* Make sure the next token is an identifier */
{
if (CfgTok != CFGTOK_IDENT) {
CfgError ("Identifier expected");
}
}
void CfgRangeCheck (unsigned long Lo, unsigned long Hi)
/* Check the range of CfgIVal */
{
if (CfgIVal < Lo || CfgIVal > Hi) {
CfgError ("Range error");
}
}
void CfgSpecialToken (const IdentTok* Table, unsigned Size, const char* Name)
/* Map an identifier to one of the special tokens in the table */
{
unsigned I;
/* We need an identifier */
if (CfgTok == CFGTOK_IDENT) {
/* Make it upper case */
I = 0;
while (CfgSVal [I]) {
CfgSVal [I] = toupper (CfgSVal [I]);
++I;
}
/* Linear search */
for (I = 0; I < Size; ++I) {
if (strcmp (CfgSVal, Table [I].Ident) == 0) {
CfgTok = Table [I].Tok;
return;
}
}
}
/* Not found or no identifier */
Error ("%s(%u): %s expected", CfgName, InputLine, Name);
}
void CfgBoolToken (void)
/* Map an identifier or integer to a boolean token */
{
static const IdentTok Booleans [] = {
{ "YES", CFGTOK_TRUE },
{ "NO", CFGTOK_FALSE },
{ "TRUE", CFGTOK_TRUE },
{ "FALSE", CFGTOK_FALSE },
};
/* If we have an identifier, map it to a boolean token */
if (CfgTok == CFGTOK_IDENT) {
CfgSpecialToken (Booleans, ENTRY_COUNT (Booleans), "Boolean");
} else {
/* We expected an integer here */
if (CfgTok != CFGTOK_INTCON) {
CfgError ("Boolean value expected");
}
CfgTok = (CfgIVal == 0)? CFGTOK_FALSE : CFGTOK_TRUE;
}
}
void CfgSetName (const char* Name)
/* Set a name for a config file */
{
CfgName = Name;
}
const char* CfgGetName (void)
/* Get the name of the config file */
{
if (CfgName) {
return CfgName;
} else if (CfgBuf) {
return "[builtin config]";
} else {
return "";
}
}
void CfgSetBuf (const char* Buf)
/* Set a memory buffer for the config */
{
CfgBuf = Buf;
}
int CfgAvail (void)
/* Return true if we have a configuration available */
{
return CfgName != 0 || CfgBuf != 0;
}
void CfgOpenInput (void)
/* Open the input file if we have one */
{
/* If we have a config name given, open the file, otherwise we will read
* from a buffer.
*/
if (!CfgBuf) {
/* Open the file */
InputFile = fopen (CfgName, "r");
if (InputFile == 0) {
Error ("Cannot open `%s': %s", CfgName, strerror (errno));
}
}
/* Initialize variables */
C = ' ';
InputLine = 1;
InputCol = 0;
/* Start the ball rolling ... */
CfgNextTok ();
}
void CfgCloseInput (void)
/* Close the input file if we have one */
{
/* Close the input file if we had one */
if (InputFile) {
(void) fclose (InputFile);
InputFile = 0;
}
}

164
src/sim65/scanner.h Normal file
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@ -0,0 +1,164 @@
/*****************************************************************************/
/* */
/* scanner.h */
/* */
/* Configuration file scanner for the sim65 6502 simulator */
/* */
/* */
/* */
/* (C) 1998-2002 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* EMail: uz@musoftware.de */
/* */
/* */
/* 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. */
/* */
/*****************************************************************************/
#ifndef SCANNER_H
#define SCANNER_H
/*****************************************************************************/
/* Data */
/*****************************************************************************/
/* Config file tokens */
typedef enum {
CFGTOK_NONE,
CFGTOK_INTCON,
CFGTOK_STRCON,
CFGTOK_IDENT,
CFGTOK_LCURLY,
CFGTOK_RCURLY,
CFGTOK_SEMI,
CFGTOK_COMMA,
CFGTOK_EQ,
CFGTOK_COLON,
CFGTOK_DOT,
CFGTOK_EOF,
/* Special identifiers */
CFGTOK_TRUE,
CFGTOK_FALSE
} cfgtok_t;
/* Mapping table entry, special identifier --> token */
typedef struct IdentTok IdentTok;
struct IdentTok {
const char* Ident; /* Identifier */
cfgtok_t Tok; /* Token for identifier */
};
#define ENTRY_COUNT(s) (sizeof (s) / sizeof (s [0]))
/* Current token and attributes */
#define CFG_MAX_IDENT_LEN 255
extern cfgtok_t CfgTok;
extern char CfgSVal [CFG_MAX_IDENT_LEN+1];
extern unsigned long CfgIVal;
/* Error location */
extern unsigned CfgErrorLine;
extern unsigned CfgErrorCol;
/*****************************************************************************/
/* Code */
/*****************************************************************************/
void CfgWarning (const char* Format, ...) attribute((format(printf,1,2)));
/* Print a warning message adding file name and line number of the config file */
void CfgError (const char* Format, ...) attribute((format(printf,1,2)));
/* Print an error message adding file name and line number of the config file */
void CfgNextTok (void);
/* Read the next token from the input stream */
void CfgConsume (cfgtok_t T, const char* Msg);
/* Skip a token, print an error message if not found */
void CfgConsumeSemi (void);
/* Consume a semicolon */
void CfgConsumeColon (void);
/* Consume a colon */
void CfgOptionalComma (void);
/* Consume a comma if there is one */
void CfgOptionalAssign (void);
/* Consume an equal sign if there is one */
void CfgAssureInt (void);
/* Make sure the next token is an integer */
void CfgAssureStr (void);
/* Make sure the next token is a string constant */
void CfgAssureIdent (void);
/* Make sure the next token is an identifier */
void CfgRangeCheck (unsigned long Lo, unsigned long Hi);
/* Check the range of CfgIVal */
void CfgSpecialToken (const IdentTok* Table, unsigned Size, const char* Name);
/* Map an identifier to one of the special tokens in the table */
void CfgBoolToken (void);
/* Map an identifier or integer to a boolean token */
void CfgSetName (const char* Name);
/* Set a name for a config file */
const char* CfgGetName (void);
/* Get the name of the config file */
void CfgSetBuf (const char* Buf);
/* Set a memory buffer for the config */
int CfgAvail (void);
/* Return true if we have a configuration available */
void CfgOpenInput (void);
/* Open the input file if we have one */
void CfgCloseInput (void);
/* Close the input file if we have one */
/* End of scanner.h */
#endif