X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=ROM2%2Fcomm.c;h=ad0a11ab67021fb99b1719dc7ee09f15d872ebcb;hb=293827a53b325c2faffddcba380b6f0c19da802a;hp=09ad2a16c89c9015d0a309019b874718ee7f4517;hpb=2e7a8beb908896930042bc0564fbd16f3e0b0b62;p=uccvend-snackrom.git

diff --git a/ROM2/comm.c b/ROM2/comm.c
index 09ad2a1..ad0a11a 100644
--- a/ROM2/comm.c
+++ b/ROM2/comm.c
@@ -143,6 +143,28 @@ void uart_interrupt() {
  * End of interrupt handler
  */
 
+void send_ack() {
+	wait_for_tx_free();
+	tx_buffer[0] = '!';
+	tx_buffer[1] = '\n';
+	tx_buffer[2] = 0;
+	lock();
+	tx_int();
+	unlock();
+	send_packet();
+}
+
+void send_nack() {
+	wait_for_tx_free();
+	tx_buffer[0] = '?';
+	tx_buffer[1] = '\n';
+	tx_buffer[2] = 0;
+	lock();
+	tx_int();
+	unlock();
+	send_packet();
+}
+
 /* sends the packet in tx_buffer and doesn't return until it's been sent */
 void send_packet() {
 	bset((void*)&tx_queue_state, 0x01);