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diff --git a/src/build/makelist.c b/src/build/makelist.c
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+/***************************************************************************
+
+ makelist.c
+
+ Create and sort the driver list.
+
+****************************************************************************
+
+ Copyright Aaron Giles
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are
+ met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in
+ the documentation and/or other materials provided with the
+ distribution.
+ * Neither the name 'MAME' nor the names of its contributors may be
+ used to endorse or promote products derived from this software
+ without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY AARON GILES ''AS IS'' AND ANY EXPRESS OR
+ IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL AARON GILES BE LIABLE FOR ANY DIRECT,
+ INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+***************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include "corefile.h"
+
+
+#define MAX_DRIVERS 65536
+
+static const char *drivlist[MAX_DRIVERS];
+
+
+//-------------------------------------------------
+// driver_sort_callback - compare two items in
+// a string array
+//-------------------------------------------------
+
+int sort_callback(const void *elem1, const void *elem2)
+{
+ const char **item1 = (const char **)elem1;
+ const char **item2 = (const char **)elem2;
+ return strcmp(*item1, *item2);
+}
+
+
+//-------------------------------------------------
+// main - primary entry point
+//-------------------------------------------------
+
+int main(int argc, char *argv[])
+{
+ // needs at least 1 argument
+ if (argc < 2)
+ {
+ fprintf(stderr,
+ "Usage:\n"
+ " makelist <source.lst>\n"
+ );
+ return 0;
+ }
+
+ // extract arguments
+ const char *srcfile = argv[1];
+
+ // read source file
+ void *buffer;
+ UINT32 length;
+ file_error filerr = core_fload(srcfile, &buffer, &length);
+ if (filerr != FILERR_NONE)
+ {
+ fprintf(stderr, "Unable to read source file '%s'\n", srcfile);
+ return 1;
+ }
+
+ // rip through it to find all drivers
+ int drivcount = 0;
+ char *srcptr = (char *)buffer;
+ char *endptr = srcptr + length;
+ int linenum = 1;
+ bool in_comment = false;
+ while (srcptr < endptr)
+ {
+ char c = *srcptr++;
+
+ // count newlines
+ if (c == 13 || c == 10)
+ {
+ if (c == 13 && *srcptr == 10)
+ srcptr++;
+ linenum++;
+ continue;
+ }
+
+ // skip any spaces
+ if (isspace(c))
+ continue;
+
+ // look for end of C comment
+ if (in_comment && c == '*' && *srcptr == '/')
+ {
+ srcptr++;
+ in_comment = false;
+ continue;
+ }
+
+ // skip anything else inside a C comment
+ if (in_comment)
+ continue;
+
+ // look for start of C comment
+ if (c == '/' && *srcptr == '*')
+ {
+ srcptr++;
+ in_comment = true;
+ continue;
+ }
+
+ // if we hit a C++ comment, scan to the end of line
+ if (c == '/' && *srcptr == '/')
+ {
+ while (srcptr < endptr && *srcptr != 13 && *srcptr != 10)
+ srcptr++;
+ continue;
+ }
+
+ // extract the driver name
+ char drivname[32];
+ drivname[0] = 0;
+ srcptr--;
+ for (int pos = 0; srcptr < endptr && pos < ARRAY_LENGTH(drivname) - 1 && !isspace(*srcptr); pos++)
+ {
+ drivname[pos] = *srcptr++;
+ drivname[pos+1] = 0;
+ }
+
+ // verify the name as valid
+ for (char *drivch = drivname; *drivch != 0; drivch++)
+ {
+ if ((*drivch >= 'a' && *drivch <= 'z') || (*drivch >= '0' && *drivch <= '9') || *drivch == '_')
+ continue;
+ fprintf(stderr, "%s:%d - Invalid character '%c' in driver \"%s\"\n", srcfile, linenum, *drivch, drivname);
+ return 1;
+ }
+
+ // add it to the list
+ char *name = (char *)malloc(strlen(drivname) + 1);
+ strcpy(name, drivname);
+ drivlist[drivcount++] = name;
+ }
+
+ // add a reference to the ___empty driver
+ drivlist[drivcount++] = "___empty";
+
+ // output a count
+ if (drivcount == 0)
+ {
+ fprintf(stderr, "No drivers found\n");
+ return 1;
+ }
+ fprintf(stderr, "%d drivers found\n", drivcount);
+
+ // sort the list
+ qsort(drivlist, drivcount, sizeof(*drivlist), sort_callback);
+
+ // start with a header
+ printf("#include \"emu.h\"\n\n");
+
+ // output the list of externs first
+ for (int index = 0; index < drivcount; index++)
+ printf("GAME_EXTERN(%s);\n", drivlist[index]);
+ printf("\n");
+
+ // then output the array
+ printf("const game_driver * const driver_list::s_drivers_sorted[%d] =\n", drivcount);
+ printf("{\n");
+ for (int index = 0; index < drivcount; index++)
+ printf("\t&GAME_NAME(%s)%s\n", drivlist[index], (index == drivcount - 1) ? "" : ",");
+ printf("};\n");
+ printf("\n");
+
+ // also output a global count
+ printf("int driver_list::s_driver_count = %d;\n", drivcount);
+
+ return 0;
+}