rewrite sound code in asm, shed 186 bytes

1 files changed, 9 insertions, 1 deletions

diff --git a/sounds.c b/sounds.c
index f6a4ac0..6fd43e2 100644
--- a/sounds.c
+++ b/sounds.c
@@ -1,3 +1,6 @@
+/* this file is no longer used. the sound code was rewritten in asm,
+   and lives in soundasm.s. This file is kept purely for reference. */
+
 /* Sounds for Taipan! Atari 800 port.
 
 	Made by capturing the Apple II audio and taking wild guesses,
@@ -13,7 +16,10 @@
 #include <peekpoke.h>
 #include "sounds.h"
 
-int sound_disabled = 0x06ff;
+/* location we will look at, to see if sound is disabled.
+	0 = enabled, 1 = disabled. If you change this here,
+	change it in newtitle.s also! */
+static int sound_disabled = 0x06ff;
 
 /* to build standalone xex that just plays the 3 sounds:
 	cl65 -DTESTXEX -t atari -o sounds.xex sounds.c 
@@ -30,6 +36,7 @@ void jsleep(unsigned int j) {
 extern void __fastcall__ jsleep(unsigned int j);
 #endif
 
+/* set volume 10, distortion 10 on audio channel 0 */
 void init_sound(unsigned char audc1) {
 	if(PEEK(sound_disabled)) return;
 
@@ -39,6 +46,7 @@ void init_sound(unsigned char audc1) {
 	POKEY_WRITE.audc1 = audc1; /* SOUND 0,x,audc1>>4,audc1&0x0f */
 }
 
+/* silence audio channel 0 */
 void stop_sound(void) {
 	POKEY_WRITE.audc1 = 0x00; /* SOUND 0,x,0,0 */
 }