Add scripts and programs for firmware

[fpga/lx-cpu1/tumbl.git] / utils / bin2mem.c

diff --git a/utils/bin2mem.c b/utils/bin2mem.c
new file mode 100644 (file)
index 0000000..5233ef8
--- /dev/null
+++ b/utils/bin2mem.c
@@ -0,0 +1,61 @@
+/* Converts bin file to mem file */
+
+#include <stdio.h>
+#include <string.h>
+
+void print_help(char * name)
+{
+       fprintf(stderr, "%s converts a binary file into a mem-file\n", name);
+       fprintf(stderr, "Usage: %s INFILE OUTFILE\n", name);
+}
+
+int main(int argc, char *argv[])
+{
+       FILE *infile, *outfile;
+       int whi, wlo, bhi, blo;
+       unsigned int addr;
+
+       if (argc != 3)
+       {
+               print_help(argv[0]);
+               return(1);
+       }
+
+       infile = fopen(argv[1], "rb");
+       if (!infile)
+       {
+               printf("Cannot open file %s\n", argv[1]);
+               return(1);
+       }
+
+       outfile = fopen(argv[2], "w");
+       if (!outfile)
+       {
+               printf("Cannot open file %s\n", argv[2]);
+               return(1);
+       }
+
+       fprintf(outfile,"// memory data file (do not edit the following line - required for mem load use)\n"
+                       "// format=hex addressradix=h dataradix=h version=1.0 wordsperline=1\n");
+
+       addr = 0;
+       while ((whi = fgetc(infile)) != EOF)
+       {
+               fprintf(outfile,"@%x ", addr);
+
+               if ((wlo = fgetc(infile)) == EOF)
+                       break;
+               if ((bhi = fgetc(infile)) == EOF)
+                       break;
+               if ((blo = fgetc(infile)) == EOF)
+                       break;
+
+               fprintf(outfile, "%.2x%.2x%.2x%.2x\n", whi,wlo,bhi,blo);
+               addr++;
+       }
+
+       fclose(infile);
+       fclose(outfile);
+
+       return 0;
+}