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root/cebix/SheepShaver/src/include/main.h
Revision: 1.5
Committed: 2004-07-03T10:39:07Z (20 years, 4 months ago) by gbeauche
Content type: text/plain
Branch: MAIN
Changes since 1.4: +1 -0 lines
Log Message:
Introducce TimebaseSpeed which represents exact timebase-frequency instead
of supposing it to be (BusClockSpeed/4), which is no longer true on G5 et al.

File Contents

# User Rev Content
1 cebix 1.1 /*
2     * main.h - Emulation core
3     *
4 cebix 1.3 * SheepShaver (C) 1997-2004 Christian Bauer and Marc Hellwig
5 cebix 1.1 *
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 gbeauche 1.5 extern int64 TimebaseSpeed; // Timebase clock speed (Hz)
32 cebix 1.1
33     #ifdef __BEOS__
34     extern system_info SysInfo; // System information
35     #endif
36    
37     // 68k register structure (for Execute68k())
38     struct M68kRegisters {
39     uint32 d[8];
40     uint32 a[8];
41     };
42    
43    
44     // Functions
45     extern void Dump68kRegs(M68kRegisters *r); // Dump 68k registers
46     extern void MakeExecutable(int dummy, void *start, uint32 length); // Make code executable
47     extern void PatchAfterStartup(void); // Patches after system startup
48     extern void QuitEmulator(void); // Quit emulator (must only be called from main thread)
49     extern void ErrorAlert(const char *text); // Display error alert
50     extern void WarningAlert(const char *text); // Display warning alert
51     extern bool ChoiceAlert(const char *text, const char *pos, const char *neg); // Display choice alert
52    
53     // Mutexes (non-recursive)
54     struct B2_mutex;
55     extern B2_mutex *B2_create_mutex(void);
56     extern void B2_lock_mutex(B2_mutex *mutex);
57     extern void B2_unlock_mutex(B2_mutex *mutex);
58     extern void B2_delete_mutex(B2_mutex *mutex);
59    
60     // Interrupt flags
61     enum {
62     INTFLAG_VIA = 1, // 60.15Hz VBL
63     INTFLAG_SERIAL = 2, // Serial driver
64     INTFLAG_ETHER = 4, // Ethernet driver
65     INTFLAG_AUDIO = 16, // Audio block read
66     INTFLAG_TIMER = 32, // Time Manager
67     INTFLAG_ADB = 64 // ADB
68     };
69    
70     extern volatile uint32 InterruptFlags; // Currently pending interrupts
71     extern void SetInterruptFlag(uint32);
72     extern void ClearInterruptFlag(uint32);
73     extern void TriggerInterrupt(void); // Trigger SIGUSR1 interrupt in emulator thread
74     extern void DisableInterrupt(void); // Disable SIGUSR1 interrupt (can be nested)
75     extern void EnableInterrupt(void); // Enable SIGUSR1 interrupt (can be nested)
76    
77     #endif