progenv/trackerfmt.h to hold format constants

diff --git a/progenv/trackerfmt.h b/progenv/trackerfmt.h
new file mode 100644 (file)
index 0000000..0a818af
--- /dev/null
+++ b/progenv/trackerfmt.h
@@ -0,0 +1,47 @@
+#ifndef _TRACKERFMT_H_
+#define _TRACKERFMT_H_
+
+#ifndef ASSEMBLER
+#endif
+
+#define NR_CHAN         4   /**< Number of channels active in the system */
+
+/* Waveform values.  8 bits. */
+#define WF_TRI          0x00    /**< Triangle wave */
+#define WF_SAW          0x01    /**< Rising sawtooth wave */
+#define WF_PUL          0x02    /**< Variable width pulse */
+#define WF_NOI          0x03    /**< Uniform noise */
+
+/* Commands.  4 bits. */
+    /** End of instrument; not valid in track ctx. */
+#define CMD_ISTOP       0x0
+    /* RESERVED 0x00 (in track context) */
+    /** Set oscillator duty top 8 bits; zero bottom bits */
+#define CMD_DUTY        0x1
+    /** Set channel volume derivative */
+#define CMD_VOLUMED     0x2
+    /** Set channel inertia (param << 1) */
+#define CMD_INTERTIA    0x3
+    /** Set channel instrument offset */
+#define CMD_IJUMP       0x4
+    /** Set channel bend derivative */
+#define CMD_BENDD       0x5
+    /** Set channel duty derivative (param << 6) */
+#define CMD_DUTYD       0x6
+    /** Set channel instrument wait */
+#define CMD_IWAIT       0x7
+    /** Set oscillator volume */
+#define CMD_VOLUME      0x8
+    /** Set oscillator waveform */
+#define CMD_WAVEFORM    0x9
+    /** Set channel instrument note (transposed) */
+#define CMD_INOTETRANS  0xA     
+    /** Set channel instrument note (absolute) */
+#define CMD_INOTE       0xB
+    /** Set channel vibrato depth and rate */
+#define CMD_VIBRATO     0xC
+
+    /* RESERVED 0x0D */
+    /* RESERVED 0x0E */
+    /* RESERVED 0x0F */
+#endif