112
edits
Changes
From Final Fantasy Inside
m
Understanding of this opcodes isn't that easy, but here is what I have got:
// Compiler optimizer (at least I think so :)) generated following tables to speedup volume calculation for left & right volume.
I'll remove these tables If there is no A8 opcode in future and add normal mathematical interpretation of volume calculationsequence, default value 0x7f.fe is used. (More precisely, 0x3fff is stored in memory.)
no edit summary
0xA3 has one 8-bit parameter, which used in calculation of base channel volume.
=== Volume Calculation ===
// m_AKAO_VOLUME_TABLE_L[i] = 32768 - m_AKAO_VOLUME_TABLE_R[i]; const uint16_t m_AKAO_VOLUME_TABLE_L[256128] = {
0x7f80, 0x7e80, 0x7d80, 0x7c80, 0x7b80, 0x7a80, 0x7980, 0x7880,
0x7780, 0x7680, 0x7580, 0x7480, 0x7380, 0x7280, 0x7180, 0x7080,
0x1780, 0x1680, 0x1580, 0x1480, 0x1380, 0x1280, 0x1180, 0x1080,
0x0f80, 0x0e80, 0x0d80, 0x0c80, 0x0b80, 0x0a80, 0x0980, 0x0880,
0x0780, 0x0680, 0x0580, 0x0480, 0x0380, 0x0280, 0x0180, 0x0080, 0x0000, 0xffff, 0xfffc, 0xfff7, 0xfff0, 0xffe7, 0xffdc, 0xffcf, 0xffc0, 0xffaf, 0xff9c, 0xff87, 0xff70, 0xff57, 0xff3c, 0xff1f, 0xff00, 0xfedf, 0xfebc, 0xfe97, 0xfe70, 0xfe47, 0xfe1c, 0xfdef, 0xfdc0, 0xfd8f, 0xfd5c, 0xfd27, 0xfcf0, 0xfcb7, 0xfc7c, 0xfc3f, 0xfc00, 0xfbbf, 0xfb7c, 0xfb37, 0xfaf0, 0xfaa7, 0xfa5c, 0xfa0f, 0xf9c0, 0xf96f, 0xf91c, 0xf8c7, 0xf870, 0xf817, 0xf7bc, 0xf75f, 0xf700, 0xf69f, 0xf63c, 0xf5d7, 0xf570, 0xf507, 0xf49c, 0xf42f, 0xf3c0, 0xf34f, 0xf2dc, 0xf267, 0xf1f0, 0xf177, 0xf0fc, 0xf07f, 0x1000, 0x1081, 0x1104, 0x1189, 0x1210, 0x1299, 0x1324, 0x13b1, 0x1440, 0x14d1, 0x1564, 0x15f9, 0x1690, 0x1729, 0x17c4, 0x1861, 0x1900, 0x19a1, 0x1a44, 0x1ae9, 0x1b90, 0x1c39, 0x1ce4, 0x1d91, 0x1e40, 0x1ef1, 0x1fa4, 0x2059, 0x2110, 0x21c9, 0x2284, 0x2341, 0x2400, 0x24c1, 0x2584, 0x2649, 0x2710, 0x27d9, 0x28a4, 0x2971, 0x2a40, 0x2b11, 0x2be4, 0x2cb9, 0x2d90, 0x2e69, 0x2f44, 0x3021, 0x3100, 0x31e1, 0x32c4, 0x33a9, 0x3490, 0x3579, 0x3664, 0x3751, 0x3840, 0x3931, 0x3a24, 0x3b19, 0x3c10, 0x3d09, 0x3e04, 0x3f01
};
// m_AKAO_VOLUME_TABLE_R[i] = i * 256 + 128; const uint16_t m_AKAO_VOLUME_TABLE_R[256128] = {
0x0080, 0x0180, 0x0280, 0x0380, 0x0480, 0x0580, 0x0680, 0x0780,
0x0880, 0x0980, 0x0a80, 0x0b80, 0x0c80, 0x0d80, 0x0e80, 0x0f80,
0x6880, 0x6980, 0x6a80, 0x6b80, 0x6c80, 0x6d80, 0x6e80, 0x6f80,
0x7080, 0x7180, 0x7280, 0x7380, 0x7480, 0x7580, 0x7680, 0x7780,
0x7880, 0x7980, 0x7a80, 0x7b80, 0x7c80, 0x7d80, 0x7e80, 0x7f80, 0x3f01, 0x3e04, 0x3d09, 0x3c10, 0x3b19, 0x3a24, 0x3931, 0x3840, 0x3751, 0x3664, 0x3579, 0x3490, 0x33a9, 0x32c4, 0x31e1, 0x3100, 0x3021, 0x2f44, 0x2e69, 0x2d90, 0x2cb9, 0x2be4, 0x2b11, 0x2a40, 0x2971, 0x28a4, 0x27d9, 0x2710, 0x2649, 0x2584, 0x24c1, 0x2400, 0x2341, 0x2284, 0x21c9, 0x2110, 0x2059, 0x1fa4, 0x1ef1, 0x1e40, 0x1d91, 0x1ce4, 0x1c39, 0x1b90, 0x1ae9, 0x1a44, 0x19a1, 0x1900, 0x1861, 0x17c4, 0x1729, 0x1690, 0x15f9, 0x1564, 0x14d1, 0x1440, 0x13dc, 0x1324, 0x1299, 0x1210, 0x1189, 0x1104, 0x1081, 0x1000, 0xf07f, 0xf0fc, 0xf177, 0xf1f0, 0xf267, 0xf2dc, 0xf34f, 0xf3c0, 0xf42f, 0xf49c, 0xf507, 0xf570, 0xf5d7, 0xf63c, 0xf69f, 0xf700, 0xf75f, 0xf7bc, 0xf817, 0xf870, 0xf8c7, 0xf91c, 0xf843, 0xf9c0, 0xfa0f, 0xfa5c, 0xfaa7, 0xfaf0, 0xfb37, 0xfb7c, 0xfbbf, 0xfc00, 0xfc3f, 0xfc7c, 0xfcb7, 0xfcf0, 0xfd27, 0xfd5c, 0xfd8f, 0xfdc0, 0xfdef, 0xfe1c, 0xfe47, 0xfe70, 0xfe97, 0xfebc, 0xfedf, 0xff00, 0xff1f, 0xff3c, 0xff57, 0xff70, 0xff87, 0xff9c, 0xffaf, 0xffc0, 0xffcf, 0xffdc, 0xffe7, 0xfff0, 0xfff7, 0xfffc, 0xffff, 0x0000
};
If there is no A3 opcode in sequence (as in SENSUI.SND for example), default value 0x7f is used.
