1/*
2 * GUSEMU32 - persistent GUS register state
3 *
4 * Copyright (C) 2000-2007 Tibor "TS" Schütz
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25#ifndef GUSTATE_H
26#define GUSTATE_H
27
28/*state block offset*/
29#define gusdata (0)
30
31/* data stored using this structure is in host byte order! */
32
33/*access type*/
34#define PortRead (0)
35#define PortWrite (1)
36
37#define Port8Bitacc (0)
38#define Port16Bitacc (1)
39
40/*voice register offsets (in bytes)*/
41#define VSRegs (0)
42#define VSRControl (0)
43#define VSRegsEnd (VSRControl+VSRegs + 32*(16*2))
44#define VSRFreq (2)
45#define VSRLoopStartHi (4)
46#define VSRLoopStartLo (6)
47#define VSRLoopEndHi (8)
48#define VSRLoopEndLo (10)
49#define VSRVolRampRate (12)
50#define VSRVolRampStartVol (14)
51#define VSRVolRampEndVol (16)
52#define VSRCurrVol (18)
53#define VSRCurrPosHi (20)
54#define VSRCurrPosLo (22)
55#define VSRPanning (24)
56#define VSRVolRampControl (26)
57
58/*voice register offsets (in words)*/
59#define wVSRegs (0)
60#define wVSRControl (0)
61#define wVSRegsEnd (wVSRControl+wVSRegs + 32*(16))
62#define wVSRFreq (1)
63#define wVSRLoopStartHi (2)
64#define wVSRLoopStartLo (3)
65#define wVSRLoopEndHi (4)
66#define wVSRLoopEndLo (5)
67#define wVSRVolRampRate (6)
68#define wVSRVolRampStartVol (7)
69#define wVSRVolRampEndVol (8)
70#define wVSRCurrVol (9)
71#define wVSRCurrPosHi (10)
72#define wVSRCurrPosLo (11)
73#define wVSRPanning (12)
74#define wVSRVolRampControl (13)
75
76/*GUS register state block: 32 voices, padding filled with remaining registers*/
77#define DataRegLoByte3x4 (VSRVolRampControl+2)
78#define DataRegWord3x4 (DataRegLoByte3x4)
79#define DataRegHiByte3x5 (VSRVolRampControl+2 +1)
80#define DMA_2xB (VSRVolRampControl+2+2)
81#define IRQ_2xB (VSRVolRampControl+2+3)
82
83#define RegCtrl_2xF (VSRVolRampControl+2+(16*2))
84#define Jumper_2xB (VSRVolRampControl+2+(16*2)+1)
85#define GUS42DMAStart (VSRVolRampControl+2+(16*2)+2)
86
87#define GUS43DRAMIOlo (VSRVolRampControl+2+(16*2)*2)
88#define GUSDRAMPOS24bit (GUS43DRAMIOlo)
89#define GUS44DRAMIOhi (VSRVolRampControl+2+(16*2)*2+2)
90
91#define voicewavetableirq (VSRVolRampControl+2+(16*2)*3) /* voice IRQ pseudoqueue: 1 bit per voice */
92
93#define voicevolrampirq (VSRVolRampControl+2+(16*2)*4) /* voice IRQ pseudoqueue: 1 bit per voice */
94
95#define startvoices (VSRVolRampControl+2+(16*2)*5) /* statistics / optimizations */
96
97#define IRQStatReg2x6 (VSRVolRampControl+2+(16*2)*6)
98#define TimerStatus2x8 (VSRVolRampControl+2+(16*2)*6+1)
99#define TimerDataReg2x9 (VSRVolRampControl+2+(16*2)*6+2)
100#define MixerCtrlReg2x0 (VSRVolRampControl+2+(16*2)*6+3)
101
102#define VoiceSelReg3x2 (VSRVolRampControl+2+(16*2)*7)
103#define FunkSelReg3x3 (VSRVolRampControl+2+(16*2)*7+1)
104#define AdLibStatus2x8 (VSRVolRampControl+2+(16*2)*7+2)
105#define StatRead_2xF (VSRVolRampControl+2+(16*2)*7+3)
106
107#define GUS48SampSpeed (VSRVolRampControl+2+(16*2)*8)
108#define GUS41DMACtrl (VSRVolRampControl+2+(16*2)*8+1)
109#define GUS45TimerCtrl (VSRVolRampControl+2+(16*2)*8+2)
110#define GUS46Counter1 (VSRVolRampControl+2+(16*2)*8+3)
111
112#define GUS47Counter2 (VSRVolRampControl+2+(16*2)*9)
113#define GUS49SampCtrl (VSRVolRampControl+2+(16*2)*9+1)
114#define GUS4cReset (VSRVolRampControl+2+(16*2)*9+2)
115#define NumVoices (VSRVolRampControl+2+(16*2)*9+3)
116
117#define TimerIRQs (VSRVolRampControl+2+(16*2)*10) /* delayed IRQ, statistics */
118#define BusyTimerIRQs (VSRVolRampControl+2+(16*2)*10+2) /* delayed IRQ, statistics */
119
120#define AdLibCommand2xA (VSRVolRampControl+2+(16*2)*11)
121#define AdLibData2x9 (VSRVolRampControl+2+(16*2)*11+1)
122#define SB2xCd (VSRVolRampControl+2+(16*2)*11+2)
123#define SB2xE (VSRVolRampControl+2+(16*2)*11+3)
124
125#define SynVoiceIRQ8f (VSRVolRampControl+2+(16*2)*12)
126#define GUS50DMAHigh (VSRVolRampControl+2+(16*2)*12+1)
127
128#define portaccesses (VSRegsEnd) /* statistics / suspend mode */
129
130#define gusdataend (VSRegsEnd+4)
131
132#endif /* GUSTATE_H */
133