Added audio register definitions

diff --git a/src/hw.inc b/src/hw.inc
index dedc0f5f294ccf7ce2ce2c866c4bcd3c7a64d49c..1c9549b677d84a7adf99c3d69f5f43da56f06865 100644 (file)
--- a/src/hw.inc
+++ b/src/hw.inc
@@ -94,6 +94,18 @@
 
 ; audio registers
 #define AUDIO_CTRL 0xFF26
+#define MASTER_VOLUME 0xFF24
+
+#define CH1_SWEEP 0xFF10
+#define CH1_LEN_DURY 0xFF11
+#define CH1_VOL_ENV 0xFF12
+#define CH1_PERIOD_LO 0xFF13
+#define CH1_PERIOD_HI_CTRL 0xFF14
+
+#define CH4_LENGTH 0xFF20
+#define CH4_VOLUME_ENV 0xFF21
+#define CH4_FREQ_RAND 0xFF22
+#define CH4_CTRL 0xFF23
 
 #define AUDIO_ALL_ON 0b10000000
 #define AUDIO_ALL_OFF 0b00000000