1 |
gbeauche |
1.1 |
/* |
2 |
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* main_windows.cpp - Emulation core, Windows implementation |
3 |
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* |
4 |
gbeauche |
1.15 |
* SheepShaver (C) 1997-2008 Christian Bauer and Marc Hellwig |
5 |
gbeauche |
1.1 |
* |
6 |
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* This program is free software; you can redistribute it and/or modify |
7 |
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* it under the terms of the GNU General Public License as published by |
8 |
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* the Free Software Foundation; either version 2 of the License, or |
9 |
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* (at your option) any later version. |
10 |
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* |
11 |
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* This program is distributed in the hope that it will be useful, |
12 |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 |
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* GNU General Public License for more details. |
15 |
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* |
16 |
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* You should have received a copy of the GNU General Public License |
17 |
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* along with this program; if not, write to the Free Software |
18 |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
19 |
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*/ |
20 |
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21 |
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#include <errno.h> |
22 |
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#include <stdio.h> |
23 |
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#include <stdlib.h> |
24 |
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#include <string.h> |
25 |
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26 |
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#include <SDL.h> |
27 |
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28 |
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#include "sysdeps.h" |
29 |
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#include "main.h" |
30 |
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#include "version.h" |
31 |
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#include "prefs.h" |
32 |
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#include "prefs_editor.h" |
33 |
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#include "cpu_emulation.h" |
34 |
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#include "emul_op.h" |
35 |
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#include "xlowmem.h" |
36 |
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#include "xpram.h" |
37 |
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#include "timer.h" |
38 |
|
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#include "adb.h" |
39 |
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#include "video.h" |
40 |
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#include "sys.h" |
41 |
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#include "macos_util.h" |
42 |
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#include "rom_patches.h" |
43 |
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#include "user_strings.h" |
44 |
|
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#include "vm_alloc.h" |
45 |
|
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#include "sigsegv.h" |
46 |
gbeauche |
1.3 |
#include "util_windows.h" |
47 |
gbeauche |
1.11 |
#include "kernel_windows.h" |
48 |
gbeauche |
1.1 |
|
49 |
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#define DEBUG 0 |
50 |
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#include "debug.h" |
51 |
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52 |
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#ifdef ENABLE_MON |
53 |
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#include "mon.h" |
54 |
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#endif |
55 |
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56 |
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57 |
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// Constants |
58 |
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const char ROM_FILE_NAME[] = "ROM"; |
59 |
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const char ROM_FILE_NAME2[] = "Mac OS ROM"; |
60 |
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61 |
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const uint32 SIG_STACK_SIZE = 0x10000; // Size of signal stack |
62 |
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63 |
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64 |
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// Global variables (exported) |
65 |
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uint32 RAMBase; // Base address of Mac RAM |
66 |
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uint32 RAMSize; // Size of Mac RAM |
67 |
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uint32 KernelDataAddr; // Address of Kernel Data |
68 |
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uint32 BootGlobsAddr; // Address of BootGlobs structure at top of Mac RAM |
69 |
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uint32 DRCacheAddr; // Address of DR Cache |
70 |
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uint32 PVR; // Theoretical PVR |
71 |
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int64 CPUClockSpeed; // Processor clock speed (Hz) |
72 |
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int64 BusClockSpeed; // Bus clock speed (Hz) |
73 |
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int64 TimebaseSpeed; // Timebase clock speed (Hz) |
74 |
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uint8 *RAMBaseHost; // Base address of Mac RAM (host address space) |
75 |
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uint8 *ROMBaseHost; // Base address of Mac ROM (host address space) |
76 |
gbeauche |
1.9 |
DWORD win_os; // Windows OS id |
77 |
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DWORD win_os_major; // Windows OS version major |
78 |
gbeauche |
1.1 |
|
79 |
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80 |
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// Global variables |
81 |
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static int kernel_area = -1; // SHM ID of Kernel Data area |
82 |
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static bool rom_area_mapped = false; // Flag: Mac ROM mmap()ped |
83 |
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static bool ram_area_mapped = false; // Flag: Mac RAM mmap()ped |
84 |
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static bool dr_cache_area_mapped = false; // Flag: Mac DR Cache mmap()ped |
85 |
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static bool dr_emulator_area_mapped = false;// Flag: Mac DR Emulator mmap()ped |
86 |
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static KernelData *kernel_data; // Pointer to Kernel Data |
87 |
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static EmulatorData *emulator_data; |
88 |
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|
89 |
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static uint8 last_xpram[XPRAM_SIZE]; // Buffer for monitoring XPRAM changes |
90 |
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static bool nvram_thread_active = false; // Flag: NVRAM watchdog installed |
91 |
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static volatile bool nvram_thread_cancel; // Flag: Cancel NVRAM thread |
92 |
gbeauche |
1.3 |
static HANDLE nvram_thread = NULL; // NVRAM watchdog |
93 |
gbeauche |
1.1 |
static bool tick_thread_active = false; // Flag: MacOS thread installed |
94 |
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static volatile bool tick_thread_cancel; // Flag: Cancel 60Hz thread |
95 |
gbeauche |
1.3 |
static HANDLE tick_thread = NULL; // 60Hz thread |
96 |
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static HANDLE emul_thread = NULL; // MacOS thread |
97 |
gbeauche |
1.1 |
static uintptr sig_stack = 0; // Stack for PowerPC interrupt routine |
98 |
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|
99 |
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uint32 SheepMem::page_size; // Size of a native page |
100 |
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uintptr SheepMem::zero_page = 0; // Address of ro page filled in with zeros |
101 |
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uintptr SheepMem::base = 0x60000000; // Address of SheepShaver data |
102 |
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uintptr SheepMem::proc; // Bottom address of SheepShave procedures |
103 |
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uintptr SheepMem::data; // Top of SheepShaver data (stack like storage) |
104 |
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105 |
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106 |
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// Prototypes |
107 |
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static bool kernel_data_init(void); |
108 |
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static void kernel_data_exit(void); |
109 |
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static void Quit(void); |
110 |
gbeauche |
1.3 |
static DWORD WINAPI nvram_func(void *arg); |
111 |
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static DWORD WINAPI tick_func(void *arg); |
112 |
gbeauche |
1.1 |
|
113 |
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static void jump_to_rom(uint32 entry); |
114 |
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extern void emul_ppc(uint32 start); |
115 |
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extern void init_emul_ppc(void); |
116 |
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extern void exit_emul_ppc(void); |
117 |
gbeauche |
1.14 |
sigsegv_return_t sigsegv_handler(sigsegv_info_t *sip); |
118 |
gbeauche |
1.1 |
|
119 |
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|
120 |
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/* |
121 |
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* Return signal stack base |
122 |
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*/ |
123 |
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124 |
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uintptr SignalStackBase(void) |
125 |
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{ |
126 |
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return sig_stack + SIG_STACK_SIZE; |
127 |
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} |
128 |
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129 |
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130 |
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/* |
131 |
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* Memory management helpers |
132 |
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*/ |
133 |
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134 |
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static inline int vm_mac_acquire(uint32 addr, uint32 size) |
135 |
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{ |
136 |
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return vm_acquire_fixed(Mac2HostAddr(addr), size); |
137 |
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} |
138 |
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139 |
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static inline int vm_mac_release(uint32 addr, uint32 size) |
140 |
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{ |
141 |
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return vm_release(Mac2HostAddr(addr), size); |
142 |
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} |
143 |
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144 |
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145 |
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/* |
146 |
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* Main program |
147 |
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*/ |
148 |
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149 |
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static void usage(const char *prg_name) |
150 |
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{ |
151 |
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printf("Usage: %s [OPTION...]\n", prg_name); |
152 |
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printf("\nUnix options:\n"); |
153 |
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printf(" --display STRING\n X display to use\n"); |
154 |
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PrefsPrintUsage(); |
155 |
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exit(0); |
156 |
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} |
157 |
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158 |
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int main(int argc, char **argv) |
159 |
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{ |
160 |
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char str[256]; |
161 |
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int16 i16; |
162 |
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HANDLE rom_fh; |
163 |
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const char *rom_path; |
164 |
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uint32 rom_size; |
165 |
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DWORD actual; |
166 |
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uint8 *rom_tmp; |
167 |
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168 |
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// Initialize variables |
169 |
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RAMBase = 0; |
170 |
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171 |
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// Print some info |
172 |
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printf(GetString(STR_ABOUT_TEXT1), VERSION_MAJOR, VERSION_MINOR); |
173 |
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printf(" %s\n", GetString(STR_ABOUT_TEXT2)); |
174 |
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|
175 |
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// Read preferences |
176 |
asvitkine |
1.16 |
PrefsInit(NULL, argc, argv); |
177 |
gbeauche |
1.1 |
|
178 |
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// Parse command line arguments |
179 |
|
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for (int i=1; i<argc; i++) { |
180 |
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if (strcmp(argv[i], "--help") == 0) { |
181 |
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usage(argv[0]); |
182 |
|
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} else if (argv[i][0] == '-') { |
183 |
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fprintf(stderr, "Unrecognized option '%s'\n", argv[i]); |
184 |
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usage(argv[0]); |
185 |
|
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} |
186 |
|
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} |
187 |
|
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|
188 |
gbeauche |
1.9 |
// Check we are using a Windows NT kernel >= 4.0 |
189 |
|
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OSVERSIONINFO osvi; |
190 |
|
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ZeroMemory(&osvi, sizeof(OSVERSIONINFO)); |
191 |
|
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osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); |
192 |
|
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if (!GetVersionEx(&osvi)) { |
193 |
|
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ErrorAlert("Could not determine OS type"); |
194 |
|
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QuitEmulator(); |
195 |
|
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} |
196 |
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win_os = osvi.dwPlatformId; |
197 |
|
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win_os_major = osvi.dwMajorVersion; |
198 |
|
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if (win_os != VER_PLATFORM_WIN32_NT || win_os_major < 4) { |
199 |
|
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ErrorAlert(GetString(STR_NO_WIN32_NT_4)); |
200 |
|
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QuitEmulator(); |
201 |
|
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} |
202 |
|
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|
203 |
|
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// Check that drivers are installed |
204 |
|
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if (!check_drivers()) |
205 |
|
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QuitEmulator(); |
206 |
|
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|
207 |
gbeauche |
1.11 |
// Load win32 libraries |
208 |
|
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KernelInit(); |
209 |
|
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|
210 |
gbeauche |
1.10 |
// FIXME: default to DIB driver |
211 |
|
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if (getenv("SDL_VIDEODRIVER") == NULL) |
212 |
|
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putenv("SDL_VIDEODRIVER=windib"); |
213 |
|
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|
214 |
gbeauche |
1.1 |
// Initialize SDL system |
215 |
|
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int sdl_flags = 0; |
216 |
|
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#ifdef USE_SDL_VIDEO |
217 |
|
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sdl_flags |= SDL_INIT_VIDEO; |
218 |
|
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#endif |
219 |
|
|
#ifdef USE_SDL_AUDIO |
220 |
|
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sdl_flags |= SDL_INIT_AUDIO; |
221 |
|
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#endif |
222 |
|
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assert(sdl_flags != 0); |
223 |
|
|
if (SDL_Init(sdl_flags) == -1) { |
224 |
|
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char str[256]; |
225 |
|
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sprintf(str, "Could not initialize SDL: %s.\n", SDL_GetError()); |
226 |
|
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ErrorAlert(str); |
227 |
|
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goto quit; |
228 |
|
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} |
229 |
|
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atexit(SDL_Quit); |
230 |
|
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|
231 |
|
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#ifdef ENABLE_MON |
232 |
|
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// Initialize mon |
233 |
|
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mon_init(); |
234 |
|
|
#endif |
235 |
|
|
|
236 |
|
|
// Install SIGSEGV handler for CPU emulator |
237 |
|
|
if (!sigsegv_install_handler(sigsegv_handler)) { |
238 |
|
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sprintf(str, GetString(STR_SIGSEGV_INSTALL_ERR), strerror(errno)); |
239 |
|
|
ErrorAlert(str); |
240 |
|
|
goto quit; |
241 |
|
|
} |
242 |
|
|
|
243 |
|
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// Initialize VM system |
244 |
|
|
vm_init(); |
245 |
|
|
|
246 |
|
|
// Get system info |
247 |
|
|
PVR = 0x00040000; // Default: 604 |
248 |
|
|
CPUClockSpeed = 100000000; // Default: 100MHz |
249 |
|
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BusClockSpeed = 100000000; // Default: 100MHz |
250 |
|
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TimebaseSpeed = 25000000; // Default: 25MHz |
251 |
|
|
PVR = 0x000c0000; // Default: 7400 (with AltiVec) |
252 |
|
|
D(bug("PVR: %08x (assumed)\n", PVR)); |
253 |
|
|
|
254 |
|
|
// Init system routines |
255 |
|
|
SysInit(); |
256 |
|
|
|
257 |
|
|
// Show preferences editor |
258 |
|
|
if (!PrefsFindBool("nogui")) |
259 |
|
|
if (!PrefsEditor()) |
260 |
|
|
goto quit; |
261 |
|
|
|
262 |
|
|
// Create areas for Kernel Data |
263 |
|
|
if (!kernel_data_init()) |
264 |
|
|
goto quit; |
265 |
|
|
kernel_data = (KernelData *)Mac2HostAddr(KERNEL_DATA_BASE); |
266 |
|
|
emulator_data = &kernel_data->ed; |
267 |
|
|
KernelDataAddr = KERNEL_DATA_BASE; |
268 |
|
|
D(bug("Kernel Data at %p (%08x)\n", kernel_data, KERNEL_DATA_BASE)); |
269 |
|
|
D(bug("Emulator Data at %p (%08x)\n", emulator_data, KERNEL_DATA_BASE + offsetof(KernelData, ed))); |
270 |
|
|
|
271 |
|
|
// Create area for DR Cache |
272 |
|
|
if (vm_mac_acquire(DR_EMULATOR_BASE, DR_EMULATOR_SIZE) < 0) { |
273 |
|
|
sprintf(str, GetString(STR_DR_EMULATOR_MMAP_ERR), strerror(errno)); |
274 |
|
|
ErrorAlert(str); |
275 |
|
|
goto quit; |
276 |
|
|
} |
277 |
|
|
dr_emulator_area_mapped = true; |
278 |
|
|
if (vm_mac_acquire(DR_CACHE_BASE, DR_CACHE_SIZE) < 0) { |
279 |
|
|
sprintf(str, GetString(STR_DR_CACHE_MMAP_ERR), strerror(errno)); |
280 |
|
|
ErrorAlert(str); |
281 |
|
|
goto quit; |
282 |
|
|
} |
283 |
|
|
dr_cache_area_mapped = true; |
284 |
|
|
DRCacheAddr = (uint32)Mac2HostAddr(DR_CACHE_BASE); |
285 |
|
|
D(bug("DR Cache at %p (%08x)\n", DRCacheAddr, DR_CACHE_BASE)); |
286 |
|
|
|
287 |
|
|
// Create area for SheepShaver data |
288 |
|
|
if (!SheepMem::Init()) { |
289 |
|
|
sprintf(str, GetString(STR_SHEEP_MEM_MMAP_ERR), strerror(errno)); |
290 |
|
|
ErrorAlert(str); |
291 |
|
|
goto quit; |
292 |
|
|
} |
293 |
|
|
|
294 |
|
|
// Create area for Mac ROM |
295 |
|
|
if (vm_mac_acquire(ROM_BASE, ROM_AREA_SIZE) < 0) { |
296 |
|
|
sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno)); |
297 |
|
|
ErrorAlert(str); |
298 |
|
|
goto quit; |
299 |
|
|
} |
300 |
|
|
ROMBaseHost = Mac2HostAddr(ROM_BASE); |
301 |
|
|
rom_area_mapped = true; |
302 |
|
|
D(bug("ROM area at %p (%08x)\n", ROMBaseHost, ROM_BASE)); |
303 |
|
|
|
304 |
|
|
// Create area for Mac RAM |
305 |
|
|
RAMSize = PrefsFindInt32("ramsize"); |
306 |
|
|
if (RAMSize < 8*1024*1024) { |
307 |
|
|
WarningAlert(GetString(STR_SMALL_RAM_WARN)); |
308 |
|
|
RAMSize = 8*1024*1024; |
309 |
|
|
} |
310 |
gbeauche |
1.13 |
RAMBase = 0; |
311 |
|
|
if (vm_mac_acquire(RAMBase, RAMSize) < 0) { |
312 |
gbeauche |
1.1 |
sprintf(str, GetString(STR_RAM_MMAP_ERR), strerror(errno)); |
313 |
|
|
ErrorAlert(str); |
314 |
|
|
goto quit; |
315 |
|
|
} |
316 |
gbeauche |
1.13 |
RAMBaseHost = Mac2HostAddr(RAMBase); |
317 |
gbeauche |
1.1 |
ram_area_mapped = true; |
318 |
|
|
D(bug("RAM area at %p (%08x)\n", RAMBaseHost, RAMBase)); |
319 |
|
|
|
320 |
|
|
if (RAMBase > ROM_BASE) { |
321 |
|
|
ErrorAlert(GetString(STR_RAM_HIGHER_THAN_ROM_ERR)); |
322 |
|
|
goto quit; |
323 |
|
|
} |
324 |
|
|
|
325 |
|
|
// Load Mac ROM |
326 |
|
|
rom_path = PrefsFindString("rom"); |
327 |
|
|
rom_fh = CreateFile(rom_path ? rom_path : ROM_FILE_NAME, |
328 |
|
|
GENERIC_READ, 0, NULL, OPEN_EXISTING, |
329 |
|
|
FILE_ATTRIBUTE_NORMAL, NULL); |
330 |
|
|
|
331 |
|
|
if (rom_fh == INVALID_HANDLE_VALUE) { |
332 |
|
|
rom_fh = CreateFile(rom_path ? rom_path : ROM_FILE_NAME2, |
333 |
|
|
GENERIC_READ, 0, NULL, OPEN_EXISTING, |
334 |
|
|
FILE_ATTRIBUTE_NORMAL, NULL); |
335 |
|
|
|
336 |
|
|
if (rom_fh == INVALID_HANDLE_VALUE) { |
337 |
|
|
ErrorAlert(GetString(STR_NO_ROM_FILE_ERR)); |
338 |
|
|
goto quit; |
339 |
|
|
} |
340 |
|
|
} |
341 |
|
|
printf(GetString(STR_READING_ROM_FILE)); |
342 |
|
|
rom_size = GetFileSize(rom_fh, NULL); |
343 |
|
|
rom_tmp = new uint8[ROM_SIZE]; |
344 |
|
|
ReadFile(rom_fh, (void *)rom_tmp, ROM_SIZE, &actual, NULL); |
345 |
|
|
CloseHandle(rom_fh); |
346 |
|
|
|
347 |
|
|
// Decode Mac ROM |
348 |
|
|
if (!DecodeROM(rom_tmp, actual)) { |
349 |
|
|
if (rom_size != 4*1024*1024) { |
350 |
|
|
ErrorAlert(GetString(STR_ROM_SIZE_ERR)); |
351 |
|
|
goto quit; |
352 |
|
|
} else { |
353 |
|
|
ErrorAlert(GetString(STR_ROM_FILE_READ_ERR)); |
354 |
|
|
goto quit; |
355 |
|
|
} |
356 |
|
|
} |
357 |
|
|
delete[] rom_tmp; |
358 |
gbeauche |
1.8 |
|
359 |
|
|
// Initialize native timers |
360 |
|
|
timer_init(); |
361 |
gbeauche |
1.1 |
|
362 |
gbeauche |
1.6 |
// Initialize everything |
363 |
|
|
if (!InitAll()) |
364 |
gbeauche |
1.1 |
goto quit; |
365 |
gbeauche |
1.6 |
D(bug("Initialization complete\n")); |
366 |
gbeauche |
1.1 |
|
367 |
|
|
// Write protect ROM |
368 |
gbeauche |
1.6 |
vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ); |
369 |
gbeauche |
1.1 |
|
370 |
|
|
// Start 60Hz thread |
371 |
|
|
tick_thread_cancel = false; |
372 |
gbeauche |
1.3 |
tick_thread_active = ((tick_thread = create_thread(tick_func)) != NULL); |
373 |
|
|
SetThreadPriority(tick_thread, THREAD_PRIORITY_ABOVE_NORMAL); |
374 |
gbeauche |
1.1 |
D(bug("Tick thread installed (%ld)\n", tick_thread)); |
375 |
|
|
|
376 |
|
|
// Start NVRAM watchdog thread |
377 |
|
|
memcpy(last_xpram, XPRAM, XPRAM_SIZE); |
378 |
|
|
nvram_thread_cancel = false; |
379 |
gbeauche |
1.3 |
nvram_thread_active = ((nvram_thread = create_thread(nvram_func, NULL)) != NULL); |
380 |
|
|
SetThreadPriority(nvram_thread, THREAD_PRIORITY_BELOW_NORMAL); |
381 |
gbeauche |
1.1 |
D(bug("NVRAM thread installed (%ld)\n", nvram_thread)); |
382 |
|
|
|
383 |
gbeauche |
1.3 |
// Get my thread ID and jump to ROM boot routine |
384 |
|
|
emul_thread = GetCurrentThread(); |
385 |
gbeauche |
1.1 |
D(bug("Jumping to ROM\n")); |
386 |
|
|
jump_to_rom(ROM_BASE + 0x310000); |
387 |
|
|
D(bug("Returned from ROM\n")); |
388 |
|
|
|
389 |
|
|
quit: |
390 |
|
|
Quit(); |
391 |
|
|
return 0; |
392 |
|
|
} |
393 |
|
|
|
394 |
|
|
|
395 |
|
|
/* |
396 |
|
|
* Cleanup and quit |
397 |
|
|
*/ |
398 |
|
|
|
399 |
|
|
static void Quit(void) |
400 |
|
|
{ |
401 |
|
|
// Exit PowerPC emulation |
402 |
|
|
exit_emul_ppc(); |
403 |
|
|
|
404 |
|
|
// Stop 60Hz thread |
405 |
|
|
if (tick_thread_active) { |
406 |
|
|
tick_thread_cancel = true; |
407 |
gbeauche |
1.3 |
wait_thread(tick_thread); |
408 |
gbeauche |
1.1 |
} |
409 |
|
|
|
410 |
|
|
// Stop NVRAM watchdog thread |
411 |
|
|
if (nvram_thread_active) { |
412 |
|
|
nvram_thread_cancel = true; |
413 |
gbeauche |
1.3 |
wait_thread(nvram_thread); |
414 |
gbeauche |
1.1 |
} |
415 |
|
|
|
416 |
gbeauche |
1.6 |
// Deinitialize everything |
417 |
|
|
ExitAll(); |
418 |
gbeauche |
1.1 |
|
419 |
|
|
// Delete SheepShaver globals |
420 |
|
|
SheepMem::Exit(); |
421 |
|
|
|
422 |
|
|
// Delete RAM area |
423 |
|
|
if (ram_area_mapped) |
424 |
gbeauche |
1.13 |
vm_mac_release(RAMBase, RAMSize); |
425 |
gbeauche |
1.1 |
|
426 |
|
|
// Delete ROM area |
427 |
|
|
if (rom_area_mapped) |
428 |
|
|
vm_mac_release(ROM_BASE, ROM_AREA_SIZE); |
429 |
|
|
|
430 |
|
|
// Delete DR cache areas |
431 |
|
|
if (dr_emulator_area_mapped) |
432 |
|
|
vm_mac_release(DR_EMULATOR_BASE, DR_EMULATOR_SIZE); |
433 |
|
|
if (dr_cache_area_mapped) |
434 |
|
|
vm_mac_release(DR_CACHE_BASE, DR_CACHE_SIZE); |
435 |
|
|
|
436 |
|
|
// Delete Kernel Data area |
437 |
|
|
kernel_data_exit(); |
438 |
|
|
|
439 |
|
|
// Exit system routines |
440 |
|
|
SysExit(); |
441 |
|
|
|
442 |
|
|
// Exit preferences |
443 |
|
|
PrefsExit(); |
444 |
|
|
|
445 |
gbeauche |
1.11 |
// Release win32 libraries |
446 |
|
|
KernelExit(); |
447 |
|
|
|
448 |
gbeauche |
1.1 |
#ifdef ENABLE_MON |
449 |
|
|
// Exit mon |
450 |
|
|
mon_exit(); |
451 |
|
|
#endif |
452 |
|
|
|
453 |
|
|
exit(0); |
454 |
|
|
} |
455 |
|
|
|
456 |
|
|
|
457 |
|
|
/* |
458 |
|
|
* Initialize Kernel Data segments |
459 |
|
|
*/ |
460 |
|
|
|
461 |
|
|
static HANDLE kernel_handle; // Shared memory handle for Kernel Data |
462 |
|
|
static DWORD allocation_granule; // Minimum size of allocateable are (64K) |
463 |
|
|
static DWORD kernel_area_size; // Size of Kernel Data area |
464 |
|
|
|
465 |
|
|
static bool kernel_data_init(void) |
466 |
|
|
{ |
467 |
|
|
char str[256]; |
468 |
|
|
SYSTEM_INFO si; |
469 |
|
|
GetSystemInfo(&si); |
470 |
|
|
allocation_granule = si.dwAllocationGranularity; |
471 |
|
|
kernel_area_size = (KERNEL_AREA_SIZE + allocation_granule - 1) & -allocation_granule; |
472 |
|
|
|
473 |
|
|
char rcs[10]; |
474 |
|
|
LPVOID kernel_addr; |
475 |
|
|
kernel_handle = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, 0, kernel_area_size, NULL); |
476 |
|
|
if (kernel_handle == NULL) { |
477 |
|
|
sprintf(rcs, "%d", GetLastError()); |
478 |
|
|
sprintf(str, GetString(STR_KD_SHMGET_ERR), rcs); |
479 |
|
|
ErrorAlert(str); |
480 |
|
|
return false; |
481 |
|
|
} |
482 |
|
|
kernel_addr = (LPVOID)Mac2HostAddr(KERNEL_DATA_BASE & -allocation_granule); |
483 |
|
|
if (MapViewOfFileEx(kernel_handle, FILE_MAP_READ | FILE_MAP_WRITE, 0, 0, kernel_area_size, kernel_addr) != kernel_addr) { |
484 |
|
|
sprintf(rcs, "%d", GetLastError()); |
485 |
|
|
sprintf(str, GetString(STR_KD_SHMAT_ERR), rcs); |
486 |
|
|
ErrorAlert(str); |
487 |
|
|
return false; |
488 |
|
|
} |
489 |
|
|
kernel_addr = (LPVOID)Mac2HostAddr(KERNEL_DATA2_BASE & -allocation_granule); |
490 |
|
|
if (MapViewOfFileEx(kernel_handle, FILE_MAP_READ | FILE_MAP_WRITE, 0, 0, kernel_area_size, kernel_addr) != kernel_addr) { |
491 |
|
|
sprintf(rcs, "%d", GetLastError()); |
492 |
|
|
sprintf(str, GetString(STR_KD2_SHMAT_ERR), rcs); |
493 |
|
|
ErrorAlert(str); |
494 |
|
|
return false; |
495 |
|
|
} |
496 |
|
|
return true; |
497 |
|
|
} |
498 |
|
|
|
499 |
|
|
|
500 |
|
|
/* |
501 |
|
|
* Deallocate Kernel Data segments |
502 |
|
|
*/ |
503 |
|
|
|
504 |
|
|
static void kernel_data_exit(void) |
505 |
|
|
{ |
506 |
|
|
if (kernel_handle) { |
507 |
|
|
UnmapViewOfFile(Mac2HostAddr(KERNEL_DATA_BASE & -allocation_granule)); |
508 |
|
|
UnmapViewOfFile(Mac2HostAddr(KERNEL_DATA2_BASE & -allocation_granule)); |
509 |
|
|
CloseHandle(kernel_handle); |
510 |
|
|
} |
511 |
|
|
} |
512 |
|
|
|
513 |
|
|
|
514 |
|
|
/* |
515 |
|
|
* Jump into Mac ROM, start 680x0 emulator |
516 |
|
|
*/ |
517 |
|
|
|
518 |
|
|
void jump_to_rom(uint32 entry) |
519 |
|
|
{ |
520 |
|
|
init_emul_ppc(); |
521 |
|
|
emul_ppc(entry); |
522 |
|
|
} |
523 |
|
|
|
524 |
|
|
|
525 |
|
|
/* |
526 |
|
|
* Quit emulator (cause return from jump_to_rom) |
527 |
|
|
*/ |
528 |
|
|
|
529 |
|
|
void QuitEmulator(void) |
530 |
|
|
{ |
531 |
|
|
Quit(); |
532 |
|
|
} |
533 |
|
|
|
534 |
|
|
|
535 |
|
|
/* |
536 |
|
|
* Pause/resume emulator |
537 |
|
|
*/ |
538 |
|
|
|
539 |
|
|
void PauseEmulator(void) |
540 |
|
|
{ |
541 |
gbeauche |
1.3 |
SuspendThread(emul_thread); |
542 |
gbeauche |
1.1 |
} |
543 |
|
|
|
544 |
|
|
void ResumeEmulator(void) |
545 |
|
|
{ |
546 |
gbeauche |
1.3 |
ResumeThread(emul_thread); |
547 |
gbeauche |
1.1 |
} |
548 |
|
|
|
549 |
|
|
|
550 |
|
|
/* |
551 |
|
|
* Dump 68k registers |
552 |
|
|
*/ |
553 |
|
|
|
554 |
|
|
void Dump68kRegs(M68kRegisters *r) |
555 |
|
|
{ |
556 |
|
|
// Display 68k registers |
557 |
|
|
for (int i=0; i<8; i++) { |
558 |
|
|
printf("d%d: %08x", i, r->d[i]); |
559 |
|
|
if (i == 3 || i == 7) |
560 |
|
|
printf("\n"); |
561 |
|
|
else |
562 |
|
|
printf(", "); |
563 |
|
|
} |
564 |
|
|
for (int i=0; i<8; i++) { |
565 |
|
|
printf("a%d: %08x", i, r->a[i]); |
566 |
|
|
if (i == 3 || i == 7) |
567 |
|
|
printf("\n"); |
568 |
|
|
else |
569 |
|
|
printf(", "); |
570 |
|
|
} |
571 |
|
|
} |
572 |
|
|
|
573 |
|
|
|
574 |
|
|
/* |
575 |
|
|
* Make code executable |
576 |
|
|
*/ |
577 |
|
|
|
578 |
|
|
void MakeExecutable(int dummy, uint32 start, uint32 length) |
579 |
|
|
{ |
580 |
|
|
if ((start >= ROM_BASE) && (start < (ROM_BASE + ROM_SIZE))) |
581 |
|
|
return; |
582 |
|
|
FlushCodeCache(start, start + length); |
583 |
|
|
} |
584 |
|
|
|
585 |
|
|
|
586 |
|
|
/* |
587 |
|
|
* NVRAM watchdog thread (saves NVRAM every minute) |
588 |
|
|
*/ |
589 |
|
|
|
590 |
|
|
static void nvram_watchdog(void) |
591 |
|
|
{ |
592 |
|
|
if (memcmp(last_xpram, XPRAM, XPRAM_SIZE)) { |
593 |
|
|
memcpy(last_xpram, XPRAM, XPRAM_SIZE); |
594 |
|
|
SaveXPRAM(); |
595 |
|
|
} |
596 |
|
|
} |
597 |
|
|
|
598 |
gbeauche |
1.3 |
static DWORD nvram_func(void *arg) |
599 |
gbeauche |
1.1 |
{ |
600 |
|
|
while (!nvram_thread_cancel) { |
601 |
|
|
for (int i=0; i<60 && !nvram_thread_cancel; i++) |
602 |
|
|
Delay_usec(999999); // Only wait 1 second so we quit promptly when nvram_thread_cancel becomes true |
603 |
|
|
nvram_watchdog(); |
604 |
|
|
} |
605 |
|
|
return 0; |
606 |
|
|
} |
607 |
|
|
|
608 |
|
|
|
609 |
|
|
/* |
610 |
|
|
* 60Hz thread (really 60.15Hz) |
611 |
|
|
*/ |
612 |
|
|
|
613 |
gbeauche |
1.3 |
static DWORD tick_func(void *arg) |
614 |
gbeauche |
1.1 |
{ |
615 |
|
|
int tick_counter = 0; |
616 |
|
|
uint64 start = GetTicks_usec(); |
617 |
|
|
int64 ticks = 0; |
618 |
|
|
uint64 next = GetTicks_usec(); |
619 |
|
|
|
620 |
|
|
while (!tick_thread_cancel) { |
621 |
|
|
|
622 |
|
|
// Wait |
623 |
|
|
next += 16625; |
624 |
|
|
int64 delay = next - GetTicks_usec(); |
625 |
|
|
if (delay > 0) |
626 |
|
|
Delay_usec(delay); |
627 |
|
|
else if (delay < -16625) |
628 |
|
|
next = GetTicks_usec(); |
629 |
|
|
ticks++; |
630 |
|
|
|
631 |
|
|
// Pseudo Mac 1Hz interrupt, update local time |
632 |
|
|
if (++tick_counter > 60) { |
633 |
|
|
tick_counter = 0; |
634 |
|
|
WriteMacInt32(0x20c, TimerDateTime()); |
635 |
|
|
} |
636 |
|
|
|
637 |
|
|
// Trigger 60Hz interrupt |
638 |
|
|
if (ReadMacInt32(XLM_IRQ_NEST) == 0) { |
639 |
|
|
SetInterruptFlag(INTFLAG_VIA); |
640 |
|
|
TriggerInterrupt(); |
641 |
|
|
} |
642 |
|
|
} |
643 |
|
|
|
644 |
|
|
uint64 end = GetTicks_usec(); |
645 |
gbeauche |
1.13 |
D(bug("%lu ticks in %lu usec = %f ticks/sec\n", (unsigned long)ticks, (unsigned long)(end - start), ticks * 1000000.0 / (end - start))); |
646 |
gbeauche |
1.1 |
return 0; |
647 |
|
|
} |
648 |
|
|
|
649 |
|
|
|
650 |
|
|
/* |
651 |
|
|
* Mutexes |
652 |
|
|
*/ |
653 |
|
|
|
654 |
|
|
struct B2_mutex { |
655 |
gbeauche |
1.4 |
mutex_t m; |
656 |
gbeauche |
1.1 |
}; |
657 |
|
|
|
658 |
|
|
B2_mutex *B2_create_mutex(void) |
659 |
|
|
{ |
660 |
|
|
return new B2_mutex; |
661 |
|
|
} |
662 |
|
|
|
663 |
|
|
void B2_lock_mutex(B2_mutex *mutex) |
664 |
|
|
{ |
665 |
gbeauche |
1.4 |
mutex->m.lock(); |
666 |
gbeauche |
1.1 |
} |
667 |
|
|
|
668 |
|
|
void B2_unlock_mutex(B2_mutex *mutex) |
669 |
|
|
{ |
670 |
gbeauche |
1.4 |
mutex->m.unlock(); |
671 |
gbeauche |
1.1 |
} |
672 |
|
|
|
673 |
|
|
void B2_delete_mutex(B2_mutex *mutex) |
674 |
|
|
{ |
675 |
|
|
delete mutex; |
676 |
|
|
} |
677 |
|
|
|
678 |
|
|
|
679 |
|
|
/* |
680 |
|
|
* Interrupt flags (must be handled atomically!) |
681 |
|
|
*/ |
682 |
|
|
|
683 |
|
|
volatile uint32 InterruptFlags = 0; |
684 |
gbeauche |
1.4 |
static mutex_t intflags_mutex; |
685 |
gbeauche |
1.1 |
|
686 |
|
|
void SetInterruptFlag(uint32 flag) |
687 |
|
|
{ |
688 |
gbeauche |
1.4 |
intflags_mutex.lock(); |
689 |
|
|
InterruptFlags |= flag; |
690 |
|
|
intflags_mutex.unlock(); |
691 |
gbeauche |
1.1 |
} |
692 |
|
|
|
693 |
|
|
void ClearInterruptFlag(uint32 flag) |
694 |
|
|
{ |
695 |
gbeauche |
1.4 |
intflags_mutex.lock(); |
696 |
|
|
InterruptFlags &= ~flag; |
697 |
|
|
intflags_mutex.unlock(); |
698 |
gbeauche |
1.1 |
} |
699 |
|
|
|
700 |
|
|
|
701 |
|
|
/* |
702 |
|
|
* Disable interrupts |
703 |
|
|
*/ |
704 |
|
|
|
705 |
|
|
void DisableInterrupt(void) |
706 |
|
|
{ |
707 |
|
|
WriteMacInt32(XLM_IRQ_NEST, int32(ReadMacInt32(XLM_IRQ_NEST)) + 1); |
708 |
|
|
} |
709 |
|
|
|
710 |
|
|
|
711 |
|
|
/* |
712 |
|
|
* Enable interrupts |
713 |
|
|
*/ |
714 |
|
|
|
715 |
|
|
void EnableInterrupt(void) |
716 |
|
|
{ |
717 |
|
|
WriteMacInt32(XLM_IRQ_NEST, int32(ReadMacInt32(XLM_IRQ_NEST)) - 1); |
718 |
|
|
} |
719 |
|
|
|
720 |
|
|
|
721 |
|
|
/* |
722 |
|
|
* Helpers to share 32-bit addressable data with MacOS |
723 |
|
|
*/ |
724 |
|
|
|
725 |
|
|
bool SheepMem::Init(void) |
726 |
|
|
{ |
727 |
|
|
// Size of a native page |
728 |
gbeauche |
1.5 |
page_size = vm_get_page_size(); |
729 |
gbeauche |
1.1 |
|
730 |
|
|
// Allocate SheepShaver globals |
731 |
|
|
proc = base; |
732 |
|
|
if (vm_mac_acquire(base, size) < 0) |
733 |
|
|
return false; |
734 |
|
|
|
735 |
|
|
// Allocate page with all bits set to 0, right in the middle |
736 |
|
|
// This is also used to catch undesired overlaps between proc and data areas |
737 |
|
|
zero_page = proc + (size / 2); |
738 |
|
|
Mac_memset(zero_page, 0, page_size); |
739 |
|
|
if (vm_protect(Mac2HostAddr(zero_page), page_size, VM_PAGE_READ) < 0) |
740 |
|
|
return false; |
741 |
|
|
|
742 |
|
|
// Allocate alternate stack for PowerPC interrupt routine |
743 |
|
|
sig_stack = base + size; |
744 |
|
|
if (vm_mac_acquire(sig_stack, SIG_STACK_SIZE) < 0) |
745 |
|
|
return false; |
746 |
|
|
|
747 |
|
|
data = base + size; |
748 |
|
|
return true; |
749 |
|
|
} |
750 |
|
|
|
751 |
|
|
void SheepMem::Exit(void) |
752 |
|
|
{ |
753 |
|
|
if (data) { |
754 |
|
|
// Delete SheepShaver globals |
755 |
|
|
vm_mac_release(base, size); |
756 |
|
|
|
757 |
|
|
// Delete alternate stack for PowerPC interrupt routine |
758 |
|
|
vm_mac_release(sig_stack, SIG_STACK_SIZE); |
759 |
|
|
} |
760 |
|
|
} |
761 |
|
|
|
762 |
|
|
|
763 |
|
|
/* |
764 |
|
|
* Get the main window handle |
765 |
|
|
*/ |
766 |
|
|
|
767 |
|
|
#ifdef USE_SDL_VIDEO |
768 |
|
|
#include <SDL_syswm.h> |
769 |
gbeauche |
1.12 |
HWND GetMainWindowHandle(void) |
770 |
gbeauche |
1.1 |
{ |
771 |
|
|
SDL_SysWMinfo wmInfo; |
772 |
gbeauche |
1.12 |
SDL_VERSION(&wmInfo.version); |
773 |
gbeauche |
1.1 |
return SDL_GetWMInfo(&wmInfo) ? wmInfo.window : NULL; |
774 |
|
|
} |
775 |
|
|
#endif |
776 |
|
|
|
777 |
|
|
|
778 |
|
|
/* |
779 |
|
|
* Display alert |
780 |
|
|
*/ |
781 |
|
|
|
782 |
|
|
static void display_alert(int title_id, const char *text, int flags) |
783 |
|
|
{ |
784 |
|
|
HWND hMainWnd = GetMainWindowHandle(); |
785 |
|
|
MessageBox(hMainWnd, text, GetString(title_id), MB_OK | flags); |
786 |
|
|
} |
787 |
|
|
|
788 |
|
|
|
789 |
|
|
/* |
790 |
|
|
* Display error alert |
791 |
|
|
*/ |
792 |
|
|
|
793 |
|
|
void ErrorAlert(const char *text) |
794 |
|
|
{ |
795 |
|
|
if (PrefsFindBool("nogui")) |
796 |
|
|
return; |
797 |
|
|
|
798 |
|
|
VideoQuitFullScreen(); |
799 |
|
|
display_alert(STR_ERROR_ALERT_TITLE, text, MB_ICONSTOP); |
800 |
|
|
} |
801 |
|
|
|
802 |
|
|
|
803 |
|
|
/* |
804 |
|
|
* Display warning alert |
805 |
|
|
*/ |
806 |
|
|
|
807 |
|
|
void WarningAlert(const char *text) |
808 |
|
|
{ |
809 |
|
|
if (PrefsFindBool("nogui")) |
810 |
|
|
return; |
811 |
|
|
|
812 |
|
|
display_alert(STR_WARNING_ALERT_TITLE, text, MB_ICONINFORMATION); |
813 |
|
|
} |
814 |
|
|
|
815 |
|
|
|
816 |
|
|
/* |
817 |
|
|
* Display choice alert |
818 |
|
|
*/ |
819 |
|
|
|
820 |
|
|
bool ChoiceAlert(const char *text, const char *pos, const char *neg) |
821 |
|
|
{ |
822 |
|
|
printf(GetString(STR_SHELL_WARNING_PREFIX), text); |
823 |
|
|
return false; //!! |
824 |
|
|
} |