Trim down nio API (no parameter passing), now at 4852 free.

1 files changed, 10 insertions, 6 deletions

diff --git a/src/main.c b/src/main.c
index a705714..8b6fc28 100644
--- a/src/main.c
+++ b/src/main.c
@@ -28,17 +28,19 @@ unsigned int txbuflen;          // TX buffer length
 char hz; /* 50 for PAL, 60 for NSTC */
 char reconnect_timeout = 1;
 
-/* TODO: user modes (default +iw), fg/bg color... */
-
 extern void ih();               // defined in intr.s
 
+void txbuf_append_chr(char c) {
+	tx_buf[txbuflen++] = c;
+}
+
 void txbuf_init(void) {
 	txbuflen = tx_buf[0] = 0;
 }
 
 void txbuf_append_str(const char *str) {
 	while(*str) {
-		tx_buf[txbuflen++] = *str++;
+		txbuf_append_chr(*str++);
 	}
 }
 
@@ -74,11 +76,13 @@ void txbuf_send(void) {
 
 	/* always terminate with *ASCII* CRLF.
 	   DO NOT USE '\n' or even '\x0a', cc65 turns it into $9b! */
-	tx_buf[txbuflen++] = 0x0d;
-	tx_buf[txbuflen++] = 0x0a;
+	// tx_buf[txbuflen++] = 0x0d;
+	// tx_buf[txbuflen++] = 0x0a;
+	txbuf_append_chr(0x0d);
+	txbuf_append_chr(0x0a);
 
 	ind_net_tx();
-	nwrite(tx_buf, txbuflen);
+	nwrite_txbuf();
 	ind_net_idle();
 	txbuf_init();
 }