1 files changed, 43 insertions, 0 deletions
diff --git a/scripts/presyn/firmware.c b/scripts/presyn/firmware.c
new file mode 100644
index 0000000..6c62169
--- /dev/null
+++ b/scripts/presyn/firmware.c
@@ -0,0 +1,43 @@
+void putc(char c)
+{
+	*(volatile char*)0x10000000 = c;
+}
+
+void puts(const char *s)
+{
+	while (*s) putc(*s++);
+}
+
+void *memcpy(void *dest, const void *src, int n)
+{
+	while (n) {
+		n--;
+		((char*)dest)[n] = ((char*)src)[n];
+	}
+	return dest;
+}
+
+void main()
+{
+	char message[] = "$Uryyb+Jbeyq!+Vs+lbh+pna+ernq+guvf+zrffntr+gura$gur+CvpbEI32+PCH"
+			"+frrzf+gb+or+jbexvat+whfg+svar.$$++++++++++++++++GRFG+CNFFRQ!$$";
+	for (int i = 0; message[i]; i++)
+		switch (message[i])
+		{
+		case 'a' ... 'm':
+		case 'A' ... 'M':
+			message[i] += 13;
+			break;
+		case 'n' ... 'z':
+		case 'N' ... 'Z':
+			message[i] -= 13;
+			break;
+		case '$':
+			message[i] = '\n';
+			break;
+		case '+':
+			message[i] = ' ';
+			break;
+		}
+	puts(message);
+}