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root/cebix/SheepShaver/src/include/main.h
Revision: 1.2
Committed: 2003-09-29T15:46:08Z (21 years, 2 months ago) by gbeauche
Content type: text/plain
Branch: MAIN
Changes since 1.1: +3 -0 lines
Log Message:
- Share EmulatorData & KernelData struct definitions
- Introduce new SheepShaver data area for alternate stacks, thunks, etc.
- Experimental asynchronous interrupts handling. This improves performance
  by 30% but some (rare) lockups may occur. To be debugged!

File Contents

# User Rev Content
1 cebix 1.1 /*
2     * main.h - Emulation core
3     *
4     * SheepShaver (C) 1997-2002 Christian Bauer and Marc Hellwig
5     *
6     * This program is free software; you can redistribute it and/or modify
7     * it under the terms of the GNU General Public License as published by
8     * the Free Software Foundation; either version 2 of the License, or
9     * (at your option) any later version.
10     *
11     * This program is distributed in the hope that it will be useful,
12     * but WITHOUT ANY WARRANTY; without even the implied warranty of
13     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14     * GNU General Public License for more details.
15     *
16     * You should have received a copy of the GNU General Public License
17     * along with this program; if not, write to the Free Software
18     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19     */
20    
21     #ifndef MAIN_H
22     #define MAIN_H
23    
24     // Global variables
25     extern void *TOC; // TOC pointer
26     extern uint32 KernelDataAddr; // Address of Kernel Data
27     extern uint32 BootGlobsAddr; // Address of BootGlobs structure at top of Mac RAM
28     extern uint32 PVR; // Theoretical PVR
29     extern int64 CPUClockSpeed; // Processor clock speed (Hz)
30     extern int64 BusClockSpeed; // Bus clock speed (Hz)
31    
32     #ifdef __BEOS__
33     extern system_info SysInfo; // System information
34     #endif
35    
36     // 68k register structure (for Execute68k())
37     struct M68kRegisters {
38     uint32 d[8];
39     uint32 a[8];
40     };
41    
42    
43     // Functions
44     extern void Dump68kRegs(M68kRegisters *r); // Dump 68k registers
45     extern void MakeExecutable(int dummy, void *start, uint32 length); // Make code executable
46     extern void PatchAfterStartup(void); // Patches after system startup
47     extern void QuitEmulator(void); // Quit emulator (must only be called from main thread)
48     extern void ErrorAlert(const char *text); // Display error alert
49     extern void WarningAlert(const char *text); // Display warning alert
50     extern bool ChoiceAlert(const char *text, const char *pos, const char *neg); // Display choice alert
51    
52     // Mutexes (non-recursive)
53     struct B2_mutex;
54     extern B2_mutex *B2_create_mutex(void);
55     extern void B2_lock_mutex(B2_mutex *mutex);
56     extern void B2_unlock_mutex(B2_mutex *mutex);
57     extern void B2_delete_mutex(B2_mutex *mutex);
58    
59     // Interrupt flags
60     enum {
61     INTFLAG_VIA = 1, // 60.15Hz VBL
62     INTFLAG_SERIAL = 2, // Serial driver
63     INTFLAG_ETHER = 4, // Ethernet driver
64     INTFLAG_AUDIO = 16, // Audio block read
65     INTFLAG_TIMER = 32, // Time Manager
66     INTFLAG_ADB = 64 // ADB
67     };
68    
69     extern volatile uint32 InterruptFlags; // Currently pending interrupts
70     extern void SetInterruptFlag(uint32);
71     extern void ClearInterruptFlag(uint32);
72 gbeauche 1.2 #if EMULATED_PPC
73     extern void HandleInterrupt(void); // Handle SIGUSR1 interrupt in emulator thread
74     #endif
75 cebix 1.1 extern void TriggerInterrupt(void); // Trigger SIGUSR1 interrupt in emulator thread
76     extern void DisableInterrupt(void); // Disable SIGUSR1 interrupt (can be nested)
77     extern void EnableInterrupt(void); // Enable SIGUSR1 interrupt (can be nested)
78    
79     #endif