src/include/main.h

/*
 *  main.h - Emulation core
 *
 *  SheepShaver (C) 1997-2005 Christian Bauer and Marc Hellwig
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef MAIN_H
#define MAIN_H

// Global variables
extern void *TOC;                               // TOC pointer
extern void *R13;                               // r13 register
extern uint32 KernelDataAddr;   // Address of Kernel Data
extern uint32 BootGlobsAddr;    // Address of BootGlobs structure at top of Mac RAM
extern uint32 PVR;                              // Theoretical PVR
extern int64 CPUClockSpeed;             // Processor clock speed (Hz)
extern int64 BusClockSpeed;             // Bus clock speed (Hz)
extern int64 TimebaseSpeed;             // Timebase clock speed (Hz)

#ifdef __BEOS__
extern system_info SysInfo;             // System information
#endif

// 68k register structure (for Execute68k())
struct M68kRegisters {
        uint32 d[8];
        uint32 a[8];
};


// Functions
extern bool InitAll(void);
extern void ExitAll(void);
extern void Dump68kRegs(M68kRegisters *r);                                      // Dump 68k registers
extern void MakeExecutable(int dummy, uint32 start, uint32 length);     // Make code executable
extern void PatchAfterStartup(void);                                            // Patches after system startup
extern void QuitEmulator(void);                                                         // Quit emulator (must only be called from main thread)
extern void ErrorAlert(const char *text);                                       // Display error alert
extern void WarningAlert(const char *text);                                     // Display warning alert
extern bool ChoiceAlert(const char *text, const char *pos, const char *neg);    // Display choice alert

// Mutexes (non-recursive)
struct B2_mutex;
extern B2_mutex *B2_create_mutex(void);
extern void B2_lock_mutex(B2_mutex *mutex);
extern void B2_unlock_mutex(B2_mutex *mutex);
extern void B2_delete_mutex(B2_mutex *mutex);

// Interrupt flags
enum {
        INTFLAG_VIA = 1,        // 60.15Hz VBL
        INTFLAG_SERIAL = 2,     // Serial driver
        INTFLAG_ETHER = 4,      // Ethernet driver
        INTFLAG_AUDIO = 16,     // Audio block read
        INTFLAG_TIMER = 32,     // Time Manager
        INTFLAG_ADB = 64        // ADB
};

extern volatile uint32 InterruptFlags;                                          // Currently pending interrupts
extern void SetInterruptFlag(uint32);
extern void ClearInterruptFlag(uint32);
extern void TriggerInterrupt(void);                                                     // Trigger SIGUSR1 interrupt in emulator thread
extern void DisableInterrupt(void);                                                     // Disable SIGUSR1 interrupt (can be nested)
extern void EnableInterrupt(void);                                                      // Enable SIGUSR1 interrupt (can be nested)

#endif
Revision:	1.9
Committed:	2005-02-27T21:52:06Z (19 years, 8 months ago) by gbeauche
Content type:	text/plain
Branch:	MAIN
Changes since 1.8:	+1 -0 lines
Log Message:	Fix native Linux/ppc with recent enough glibc that supports TLS; r2 is used in that case. Tell me if I broke other arches, e.g. r13 is no longer saved in Video and Ethernet stubs, though it seems to be OK. Colateral feature: SheepShaver should now run on Linux/ppc64 with relevant 32-bit runtime. Native Linux/ppc64 support is harder as low mem globals are 32-bit in mind and e.g. the TLS register there is %r13, %r2 is the TOC (PowerOpen/AIX ABI)
#	User	Rev	Content
1	cebix	1.1	/*
2			* main.h - Emulation core
3			*
4	gbeauche	1.8	* SheepShaver (C) 1997-2005 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	gbeauche	1.9	extern void *R13; // r13 register
27	cebix	1.1	extern uint32 KernelDataAddr; // Address of Kernel Data
28			extern uint32 BootGlobsAddr; // Address of BootGlobs structure at top of Mac RAM
29			extern uint32 PVR; // Theoretical PVR
30			extern int64 CPUClockSpeed; // Processor clock speed (Hz)
31			extern int64 BusClockSpeed; // Bus clock speed (Hz)
32	gbeauche	1.5	extern int64 TimebaseSpeed; // Timebase clock speed (Hz)
33	cebix	1.1
34			#ifdef __BEOS__
35			extern system_info SysInfo; // System information
36			#endif
37
38			// 68k register structure (for Execute68k())
39			struct M68kRegisters {
40			uint32 d[8];
41			uint32 a[8];
42			};
43
44
45			// Functions
46	gbeauche	1.7	extern bool InitAll(void);
47			extern void ExitAll(void);
48	cebix	1.1	extern void Dump68kRegs(M68kRegisters *r); // Dump 68k registers
49	gbeauche	1.6	extern void MakeExecutable(int dummy, uint32 start, uint32 length); // Make code executable
50	cebix	1.1	extern void PatchAfterStartup(void); // Patches after system startup
51			extern void QuitEmulator(void); // Quit emulator (must only be called from main thread)
52			extern void ErrorAlert(const char *text); // Display error alert
53			extern void WarningAlert(const char *text); // Display warning alert
54			extern bool ChoiceAlert(const char text, const char pos, const char *neg); // Display choice alert
55
56			// Mutexes (non-recursive)
57			struct B2_mutex;
58			extern B2_mutex *B2_create_mutex(void);
59			extern void B2_lock_mutex(B2_mutex *mutex);
60			extern void B2_unlock_mutex(B2_mutex *mutex);
61			extern void B2_delete_mutex(B2_mutex *mutex);
62
63			// Interrupt flags
64			enum {
65			INTFLAG_VIA = 1, // 60.15Hz VBL
66			INTFLAG_SERIAL = 2, // Serial driver
67			INTFLAG_ETHER = 4, // Ethernet driver
68			INTFLAG_AUDIO = 16, // Audio block read
69			INTFLAG_TIMER = 32, // Time Manager
70			INTFLAG_ADB = 64 // ADB
71			};
72
73			extern volatile uint32 InterruptFlags; // Currently pending interrupts
74			extern void SetInterruptFlag(uint32);
75			extern void ClearInterruptFlag(uint32);
76			extern void TriggerInterrupt(void); // Trigger SIGUSR1 interrupt in emulator thread
77			extern void DisableInterrupt(void); // Disable SIGUSR1 interrupt (can be nested)
78			extern void EnableInterrupt(void); // Enable SIGUSR1 interrupt (can be nested)
79
80			#endif