1 files changed, 77 insertions, 0 deletions
diff --git a/c/tool/blob2c.c b/c/tool/blob2c.c
new file mode 100644
index 0000000..d76aaae
--- /dev/null
+++ b/c/tool/blob2c.c
@@ -0,0 +1,77 @@
+// Required headers
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+// Where the Z80 blob is stored
+#define MAX_SIZE 0x2000
+uint8_t blob[MAX_SIZE];
+size_t blob_size;
+
+//***************************************************************************
+// Program entry point
+//***************************************************************************
+
+int main(int argc, char **argv) {
+   // Check number of arguments
+   if (argc != 3) {
+      fprintf(stderr, "Usage: %s <input> <output>\n", argv[0]);
+      return EXIT_FAILURE;
+   }
+
+   // Open input file
+   FILE *file = fopen(argv[1], "rb");
+   if (file == NULL) {
+      fputs("Error: couldn't open input file\n", stderr);
+      return EXIT_FAILURE;
+   }
+
+   // Read the blob into memory and get its filesize
+   // Use ferror() to check for failure since most likely we will be
+   // attempting to read more data than is actually in the blob
+   blob_size = fread(blob, 1, MAX_SIZE, file);
+   if (ferror(file) && !feof(file)) {
+      fputs("Error: couldn't read input file\n", stderr);
+      fclose(file);
+      return EXIT_FAILURE;
+   }
+
+   // Done with input file
+   fclose(file);
+
+   // Open output file
+   file = fopen(argv[2], "w");
+   if (file == NULL) {
+      fputs("Error: couldn't open output file\n", stderr);
+      return EXIT_FAILURE;
+   }
+
+   // Start the table
+   fputs("static uint8_t echo_blob[] = {", file);
+
+   // Output the blob data as a C array
+   // Pretty formatting too!
+   unsigned i;
+   for (i = 0; i < blob_size; i++) {
+      fprintf(file, "%s%3u%s",
+         i % 0x10 == 0 ? "\n   " : "", blob[i],
+         i == blob_size-1 ? "" : ",");
+   }
+
+   // End the table
+   fputs("\n};\n", file);
+
+   // Check if there was an error (to output an error message)
+   if (ferror(file)) {
+      fputs("Error: couldn't write output file\n", stderr);
+      fclose(file);
+      return EXIT_FAILURE;
+   }
+
+   // Done with output file
+   fclose(file);
+
+   // Done
+   return EXIT_SUCCESS;
+}