1 files changed, 59 insertions, 0 deletions
diff --git a/zpu/hdl/example/zpuromgen.c b/zpu/hdl/example/zpuromgen.c
new file mode 100644
index 0000000..fb8c4ba
--- /dev/null
+++ b/zpu/hdl/example/zpuromgen.c
@@ -0,0 +1,59 @@
+// zpuromgen.c
+//
+// Program to turn a binary file into a VHDL lookup table.
+//   by Adam Pierce
+//   29-Feb-2008
+//
+// This software is free to use by anyone for any purpose.
+//
+
+#include <unistd.h>
+#include <stdio.h>
+
+typedef uint8_t BYTE;
+
+main(int argc, char **argv)
+{
+       BYTE    opcode[4];
+       int     fd;
+       int     addr = 0;
+       ssize_t s;
+
+// Check the user has given us an input file.
+       if(argc < 2)
+       {
+               printf("Usage: %s <binary_file>\n\n", argv[0]);
+               return 1;
+       }
+
+// Open the input file.
+       fd = open(argv[1], 0);
+       if(fd == -1)
+       {
+               perror("File Open");
+               return 2;
+       }
+
+       while(1)
+       {
+       // Read 32 bits.
+               s = read(fd, opcode, 4);
+               if(s == -1)
+               {
+                       perror("File read");
+                       return 3;
+               }
+
+               if(s == 0)
+                       break; // End of file.
+
+       // Output to STDOUT.
+               printf("%6d => x\"%02x%02x%02x%02x\",\n",
+                      addr++, opcode[0], opcode[1],
+                      opcode[2], opcode[3]);
+       }
+
+       close(fd);
+       return 0;
+}
+