Reduce static RAM usage

1 files changed, 6 insertions, 4 deletions

diff --git a/avr/main.c b/avr/main.c
index 450e2ba..1fba3cb 100644
--- a/avr/main.c
+++ b/avr/main.c
@@ -67,15 +67,17 @@ void print_reset_reason(void)
 	uint8_t r = mcusr & 0x1f;
 	const FLASH char * const FLASH *p = rreasons;
 
-	printf_P(PSTR("### Reset reason(s): %s"), r ? "" : "none");
+	my_puts_P(PSTR("### Reset reason(s): "));
+	if (r == 0)
+		my_puts_P(PSTR("none"));
 	for ( ; r; p++, r >>= 1) {
 		if (r & 1) {
 			my_puts_P(*p);
 			if (r & ~1)
-				printf_P(PSTR(", "));
+				my_puts_P(PSTR(", "));
 		}
 	}
-	printf_P(PSTR(".\n"));
+	my_puts_P(PSTR(".\n"));
 }
 
 #endif
@@ -223,7 +225,7 @@ const char *bootdelay_process(void)
 static
 void autoboot_command(const char *s)
 {
-	debug("### main_loop: bootcmd=\"%s\"\n", s ? s : "<UNDEFINED>");
+	debug("### main_loop: bootcmd=\"%s\"\n", s ? s : "");
 	_delay_ms(20);
 
 	if (stored_bootdelay != -1 && s && !abortboot(stored_bootdelay)) {