add reset sketch and reorganize files

spybug/fstr.cpp

@@ -0,0 +1,34 @@
+#include "fstr.hh"
+
+size_t fstrlen(const __FlashStringHelper *s) {
+	PGM_P sp = (PGM_P)s;
+	size_t len = 0;
+	while (pgm_read_byte(sp++))
+		len++;
+	return len;
+}
+
+bool fstreq(const char *a, const __FlashStringHelper *b_fsh) {
+	PGM_P b = (PGM_P)b_fsh;
+	while (1) {
+		if (*a != pgm_read_byte(b))
+			return false;
+		if (*a == 0)
+			return true;
+		a++; b++;
+	}
+}
+
+int printf(const __FlashStringHelper *fmt, ...) {
+	size_t len = fstrlen(fmt);
+	char buf[len + 1];
+	buf[len] = 0;
+	memcpy_P(buf, fmt, len + 1);
+
+	va_list args;
+	va_start(args, fmt);
+	int ret = vprintf(buf, args);
+	va_end(args);
+	return ret;
+}
+