Imported pristine psxsdk-20190410 from official repo

1 files changed, 204 insertions, 0 deletions

diff --git a/tools/exefixup.c b/tools/exefixup.c
new file mode 100644
index 0000000..7f555dc
--- /dev/null
+++ b/tools/exefixup.c
@@ -0,0 +1,204 @@
+/* 
+ * exefixup.c v0.02.1 Andrew Kieschnick <andrewk@mail.utexas.edu>
+ *                    (v0.02.1): Giuseppe Gatta <tails92@gmail.com>
+ *
+ * v0.02.1 changes: removed warnings
+ *
+ * displays PS-X EXE header information
+ * offers to fix incorrect t_size
+ * offers to pad to 2048-byte boundary for cd-rom use
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <stdlib.h>
+
+unsigned int char2int(unsigned char *foo)
+{
+  return foo[3]*16777216 + foo[2]*65536 + foo[1]*256 + foo[0];
+}
+
+void int2char(unsigned int foo, unsigned char *bar)
+{
+  bar[3]=foo>>24;
+  bar[2]=foo>>16;
+  bar[1]=foo>>8;
+  bar[0]=foo;
+}
+
+void usage(void)
+{
+  printf("Usage: exefixup <filename>\n\n");
+  printf("\t<filename>\ta PS-X EXE file\n\n");
+  printf("\tdisplays EXE header\n");
+  printf("\toffers to correct a wrong t_size\n");
+  printf("\toffers to pad to 2048-byte boundary\n\n");
+  exit(0);
+}
+
+int main(int argc, char *argv[])
+{
+  FILE *exe;
+  FILE *out;
+  unsigned char data[8];
+  char filename[256];
+  int i;
+  unsigned int header_data[12];
+  unsigned int size;
+  unsigned int padsize;
+  signed char yesno='Z';
+
+  printf("exefixup v0.02.1 Andrew Kieschnick <andrewk@mail.utexas.edu>\n\n");
+
+  if (argc!=2)
+    usage();
+
+  strncpy(filename,argv[1],256);
+
+  exe=fopen(filename, "r");
+
+  strcat(filename, "-fixed"); /* output filename is same as input filename, but with -fix appended */
+
+  if (!exe)
+    {
+      printf("ERROR: Can't open %s\n",filename);
+      exit(-1);
+    }
+
+  for(i=0;i<8;i++)
+    fscanf(exe, "%c", &data[i]);
+  data[8]=0;
+
+  if (strncmp((char*)data, "PS-X EXE", 8))
+    {
+      printf("ERROR: Not a PS-X EXE file\n");
+      exit(-1);
+    }
+  
+  for(i=0;i<12;i++)
+    {
+      fscanf(exe, "%c", &data[0]);
+      fscanf(exe, "%c", &data[1]);
+      fscanf(exe, "%c", &data[2]);
+      fscanf(exe, "%c", &data[3]);
+      header_data[i]=char2int(data);
+    }
+
+  printf("id\tPS-X EXE\n");
+  printf("text\t0x%.8x\n", header_data[0]);
+  printf("data\t0x%.8x\n", header_data[1]);
+  printf("pc0\t0x%.8x\n", header_data[2]);
+  printf("gp0\t0x%.8x\n", header_data[3]);
+  printf("t_addr\t0x%.8x\n", header_data[4]);
+  printf("t_size\t0x%.8x\n", header_data[5]);
+  printf("d_addr\t0x%.8x\n", header_data[6]);
+  printf("d_size\t0x%.8x\n", header_data[7]);
+  printf("b_addr\t0x%.8x\n", header_data[8]);
+  printf("b_size\t0x%.8x\n", header_data[9]);
+  printf("s_addr\t0x%.8x\n", header_data[10]);
+  printf("s_size\t0x%.8x\n\n", header_data[11]);
+
+  fseek(exe, 0, SEEK_END);
+  
+  size=ftell(exe)-2048;
+
+  padsize=2048-(size%2048);
+
+  if (padsize!=2048)
+    {
+      printf("WARNING: EXE size is not a multiple of 2048!\n");
+      while ((yesno!='Y')&&(yesno!='N'))
+	{
+	  printf("Write a padded EXE (to %s) ? ",filename);
+	  scanf("%c%*c", &yesno);
+	  yesno=toupper(yesno);
+	}
+      if (yesno=='Y')
+	{
+	  out = fopen(filename, "w");
+	  
+	  header_data[5]=size+padsize;
+
+	  fprintf(out, "PS-X EXE");
+	  for(i=0;i<12;i++)
+	    {
+	      int2char(header_data[i], data);
+	      fprintf(out, "%c%c%c%c", data[0], data[1], data[2], data[3]);
+	    }
+	  
+	  fseek(exe, 56, SEEK_SET);
+
+	  for(i=0;i<size+1992;i++)
+	    {
+	      fscanf(exe, "%c", &data[0]);
+	      fprintf(out, "%c", data[0]);
+	    }
+	  for(i=0;i<padsize;i++)
+	    fprintf(out, "%c", 0);
+	  
+	  size=header_data[5];
+	  fclose(out);	  
+	}
+    }
+  
+  yesno='Z';
+  
+  if (size!=header_data[5])
+    {
+      printf("WARNING: EXE header t_size does not match filesize-2048\n");
+      printf("EXE header:\t 0x%.8x bytes\n", header_data[5]);
+      printf("filesize-2048:\t 0x%.8x bytes\n", size);
+      while ((yesno!='Y')&&(yesno!='N'))
+	{
+	  printf("Write a corrected EXE (to %s) ? ",filename);
+	  scanf("%c%*c", &yesno);
+	  yesno=toupper(yesno);
+	}
+      if (yesno=='Y')
+	{
+	  out = fopen(filename, "w");
+	  
+	  fprintf(out, "PS-X EXE");
+	  for(i=0;i<5;i++)
+	    {
+	      int2char(header_data[i], data);
+	      fprintf(out, "%c%c%c%c", data[0], data[1], data[2], data[3]);
+	    }
+	  int2char(size, data);
+	  fprintf(out, "%c%c%c%c", data[0], data[1], data[2], data[3]);
+	  for(i=6;i<12;i++)
+	    {
+	      int2char(header_data[i], data);
+	      fprintf(out, "%c%c%c%c", data[0], data[1], data[2], data[3]);
+	    }
+	  
+	  fseek(exe, 56, SEEK_SET);
+
+	  for(i=0;i<size+1992;i++)
+	    {
+	      fscanf(exe, "%c", &data[0]);
+	      fprintf(out, "%c", data[0]);
+	    }
+	  fclose(out);
+	}
+    }
+  fclose(exe);
+  return 0;
+}