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root/cebix/SheepShaver/src/include/main.h
Revision: 1.6
Committed: 2004-11-13T14:09:16Z (20 years ago) by gbeauche
Content type: text/plain
Branch: MAIN
Changes since 1.5: +1 -1 lines
Log Message:
Implement Direct Addressing mode similarly to Basilisk II. This is to get
SheepShaver working on OSes that don't support maipping of Low Memory globals
at 0x00000000, e.g. Windows.

File Contents

# Content
1 /*
2 * main.h - Emulation core
3 *
4 * SheepShaver (C) 1997-2004 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 extern int64 TimebaseSpeed; // Timebase clock speed (Hz)
32
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, uint32 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