display logo gfx, misc gfx related helpers

utils/gentilemap.c

@@ -0,0 +1,23 @@
+#include <stdio.h>
+#include <stdint.h>
+
+int main(void) {
+uint16_t tile=64;
+uint16_t pad=0xa+64;
+	int i,j;
+	FILE *out;
+	if((out=fopen("tilemap", "wb"))==NULL) {
+		perror("Could not open output file 'tilemap'");
+		return 1;
+	}
+	for(i=0; i<12; i++) {
+		for(j=0; j<25; j++)	{
+			fwrite(&tile, 2, 1, out);
+			tile++;			
+		}
+		for(j=25; j<32; j++) {
+			fwrite(&pad, 2, 1, out);
+		}
+	}
+	fclose(out);
+}