1 |
cebix |
1.1 |
/* |
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* main_unix.cpp - Startup code for Unix |
3 |
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* |
4 |
gbeauche |
1.65 |
* Basilisk II (C) 1997-2005 Christian Bauer |
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cebix |
1.1 |
* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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#include "sysdeps.h" |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <signal.h> |
26 |
cebix |
1.12 |
#include <errno.h> |
27 |
gbeauche |
1.59 |
|
28 |
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#ifdef USE_SDL |
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# include <SDL.h> |
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#endif |
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#ifndef USE_SDL_VIDEO |
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# include <X11/Xlib.h> |
34 |
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#endif |
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cebix |
1.12 |
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36 |
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#ifdef HAVE_PTHREADS |
37 |
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# include <pthread.h> |
38 |
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#endif |
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40 |
cebix |
1.27 |
#if REAL_ADDRESSING || DIRECT_ADDRESSING |
41 |
cebix |
1.12 |
# include <sys/mman.h> |
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#endif |
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44 |
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#if !EMULATED_68K && defined(__NetBSD__) |
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# include <m68k/sync_icache.h> |
46 |
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# include <m68k/frame.h> |
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# include <sys/param.h> |
48 |
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# include <sys/sysctl.h> |
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struct sigstate { |
50 |
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int ss_flags; |
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struct frame ss_frame; |
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struct fpframe ss_fpstate; |
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}; |
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# define SS_FPSTATE 0x02 |
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# define SS_USERREGS 0x04 |
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#endif |
57 |
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58 |
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#ifdef ENABLE_GTK |
59 |
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# include <gtk/gtk.h> |
60 |
cebix |
1.28 |
# include <gdk/gdk.h> |
61 |
cebix |
1.43 |
# ifdef HAVE_GNOMEUI |
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# include <gnome.h> |
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# endif |
64 |
cebix |
1.12 |
#endif |
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#ifdef ENABLE_XF86_DGA |
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# include <X11/Xutil.h> |
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# include <X11/extensions/xf86dga.h> |
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#endif |
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cebix |
1.1 |
|
71 |
cebix |
1.48 |
#include <string> |
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using std::string; |
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cebix |
1.1 |
#include "cpu_emulation.h" |
75 |
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#include "sys.h" |
76 |
cebix |
1.3 |
#include "rom_patches.h" |
77 |
cebix |
1.1 |
#include "xpram.h" |
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#include "timer.h" |
79 |
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#include "video.h" |
80 |
cebix |
1.12 |
#include "emul_op.h" |
81 |
cebix |
1.1 |
#include "prefs.h" |
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#include "prefs_editor.h" |
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#include "macos_util.h" |
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#include "user_strings.h" |
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#include "version.h" |
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#include "main.h" |
87 |
gbeauche |
1.33 |
#include "vm_alloc.h" |
88 |
gbeauche |
1.46 |
#include "sigsegv.h" |
89 |
cebix |
1.1 |
|
90 |
gbeauche |
1.50 |
#if USE_JIT |
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gbeauche |
1.57 |
extern void flush_icache_range(uint32 start, uint32 size); // from compemu_support.cpp |
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gbeauche |
1.50 |
#endif |
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cebix |
1.12 |
#ifdef ENABLE_MON |
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# include "mon.h" |
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#endif |
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cebix |
1.13 |
#define DEBUG 0 |
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cebix |
1.1 |
#include "debug.h" |
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cebix |
1.12 |
// Constants |
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const char ROM_FILE_NAME[] = "ROM"; |
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gbeauche |
1.51 |
#if !EMULATED_68K |
105 |
cebix |
1.12 |
const int SIG_STACK_SIZE = SIGSTKSZ; // Size of signal stack |
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gbeauche |
1.51 |
#endif |
107 |
cebix |
1.12 |
const int SCRATCH_MEM_SIZE = 0x10000; // Size of scratch memory area |
108 |
cebix |
1.1 |
|
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cebix |
1.4 |
|
110 |
cebix |
1.12 |
#if !EMULATED_68K |
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// RAM and ROM pointers |
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uint32 RAMBaseMac; // RAM base (Mac address space) |
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uint8 *RAMBaseHost; // RAM base (host address space) |
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uint32 RAMSize; // Size of RAM |
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uint32 ROMBaseMac; // ROM base (Mac address space) |
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uint8 *ROMBaseHost; // ROM base (host address space) |
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uint32 ROMSize; // Size of ROM |
118 |
cebix |
1.9 |
#endif |
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cebix |
1.1 |
|
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// CPU and FPU type, addressing mode |
122 |
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int CPUType; |
123 |
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bool CPUIs68060; |
124 |
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int FPUType; |
125 |
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bool TwentyFourBitAddressing; |
126 |
gbeauche |
1.62 |
bool ThirtyThreeBitAddressing = false; |
127 |
cebix |
1.1 |
|
128 |
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129 |
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// Global variables |
130 |
gbeauche |
1.59 |
#ifndef USE_SDL_VIDEO |
131 |
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extern char *x_display_name; // X11 display name |
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extern Display *x_display; // X11 display handle |
133 |
gbeauche |
1.64 |
#ifdef X11_LOCK_TYPE |
134 |
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X11_LOCK_TYPE x_display_lock = X11_LOCK_INIT; // X11 display lock |
135 |
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#endif |
136 |
gbeauche |
1.59 |
#endif |
137 |
cebix |
1.1 |
|
138 |
cebix |
1.41 |
static uint8 last_xpram[XPRAM_SIZE]; // Buffer for monitoring XPRAM changes |
139 |
cebix |
1.12 |
|
140 |
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#ifdef HAVE_PTHREADS |
141 |
gbeauche |
1.51 |
#if !EMULATED_68K |
142 |
cebix |
1.12 |
static pthread_t emul_thread; // Handle of MacOS emulation thread (main thread) |
143 |
gbeauche |
1.51 |
#endif |
144 |
cebix |
1.12 |
|
145 |
cebix |
1.1 |
static bool xpram_thread_active = false; // Flag: XPRAM watchdog installed |
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static volatile bool xpram_thread_cancel = false; // Flag: Cancel XPRAM thread |
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static pthread_t xpram_thread; // XPRAM watchdog |
148 |
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149 |
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static bool tick_thread_active = false; // Flag: 60Hz thread installed |
150 |
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static volatile bool tick_thread_cancel = false; // Flag: Cancel 60Hz thread |
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static pthread_t tick_thread; // 60Hz thread |
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static pthread_attr_t tick_thread_attr; // 60Hz thread attributes |
153 |
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154 |
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static pthread_mutex_t intflag_lock = PTHREAD_MUTEX_INITIALIZER; // Mutex to protect InterruptFlags |
155 |
cebix |
1.37 |
#define LOCK_INTFLAGS pthread_mutex_lock(&intflag_lock) |
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#define UNLOCK_INTFLAGS pthread_mutex_unlock(&intflag_lock) |
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158 |
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#else |
159 |
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160 |
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#define LOCK_INTFLAGS |
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#define UNLOCK_INTFLAGS |
162 |
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163 |
cebix |
1.12 |
#endif |
164 |
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165 |
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#if !EMULATED_68K |
166 |
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#define SIG_IRQ SIGUSR1 |
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static struct sigaction sigirq_sa; // Virtual 68k interrupt signal |
168 |
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static struct sigaction sigill_sa; // Illegal instruction |
169 |
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static void *sig_stack = NULL; // Stack for signal handlers |
170 |
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uint16 EmulatedSR; // Emulated bits of SR (supervisor bit and interrupt mask) |
171 |
gbeauche |
1.20 |
#endif |
172 |
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173 |
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#if USE_SCRATCHMEM_SUBTERFUGE |
174 |
cebix |
1.22 |
uint8 *ScratchMem = NULL; // Scratch memory for Mac ROM writes |
175 |
cebix |
1.12 |
#endif |
176 |
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177 |
gbeauche |
1.51 |
#if !defined(HAVE_PTHREADS) |
178 |
cebix |
1.12 |
static struct sigaction timer_sa; // sigaction used for timer |
179 |
cebix |
1.1 |
|
180 |
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#if defined(HAVE_TIMER_CREATE) && defined(_POSIX_REALTIME_SIGNALS) |
181 |
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#define SIG_TIMER SIGRTMIN |
182 |
cebix |
1.12 |
static timer_t timer; // 60Hz timer |
183 |
cebix |
1.1 |
#endif |
184 |
gbeauche |
1.51 |
#endif // !HAVE_PTHREADS |
185 |
cebix |
1.1 |
|
186 |
cebix |
1.12 |
#ifdef ENABLE_MON |
187 |
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static struct sigaction sigint_sa; // sigaction for SIGINT handler |
188 |
cebix |
1.4 |
static void sigint_handler(...); |
189 |
cebix |
1.15 |
#endif |
190 |
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191 |
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#if REAL_ADDRESSING |
192 |
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static bool lm_area_mapped = false; // Flag: Low Memory area mmap()ped |
193 |
cebix |
1.22 |
#endif |
194 |
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195 |
cebix |
1.1 |
|
196 |
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// Prototypes |
197 |
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static void *xpram_func(void *arg); |
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static void *tick_func(void *arg); |
199 |
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static void one_tick(...); |
200 |
cebix |
1.12 |
#if !EMULATED_68K |
201 |
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static void sigirq_handler(int sig, int code, struct sigcontext *scp); |
202 |
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static void sigill_handler(int sig, int code, struct sigcontext *scp); |
203 |
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extern "C" void EmulOpTrampoline(void); |
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#endif |
205 |
cebix |
1.1 |
|
206 |
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207 |
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/* |
208 |
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* Ersatz functions |
209 |
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*/ |
210 |
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211 |
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extern "C" { |
212 |
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213 |
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#ifndef HAVE_STRDUP |
214 |
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char *strdup(const char *s) |
215 |
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{ |
216 |
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char *n = (char *)malloc(strlen(s) + 1); |
217 |
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strcpy(n, s); |
218 |
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return n; |
219 |
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} |
220 |
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#endif |
221 |
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222 |
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} |
223 |
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224 |
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225 |
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/* |
226 |
gbeauche |
1.62 |
* Map memory that can be accessed from the Mac side |
227 |
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*/ |
228 |
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229 |
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void *vm_acquire_mac(size_t size) |
230 |
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{ |
231 |
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void *m = vm_acquire(size, VM_MAP_DEFAULT | VM_MAP_33BIT); |
232 |
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if (m == NULL) { |
233 |
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ThirtyThreeBitAddressing = false; |
234 |
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m = vm_acquire(size); |
235 |
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} |
236 |
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return m; |
237 |
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} |
238 |
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239 |
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240 |
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/* |
241 |
gbeauche |
1.54 |
* SIGSEGV handler |
242 |
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*/ |
243 |
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244 |
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static sigsegv_return_t sigsegv_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction) |
245 |
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{ |
246 |
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#if ENABLE_VOSF |
247 |
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// Handle screen fault |
248 |
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extern bool Screen_fault_handler(sigsegv_address_t, sigsegv_address_t); |
249 |
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if (Screen_fault_handler(fault_address, fault_instruction)) |
250 |
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return SIGSEGV_RETURN_SUCCESS; |
251 |
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#endif |
252 |
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253 |
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#ifdef HAVE_SIGSEGV_SKIP_INSTRUCTION |
254 |
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// Ignore writes to ROM |
255 |
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if (((uintptr)fault_address - (uintptr)ROMBaseHost) < ROMSize) |
256 |
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return SIGSEGV_RETURN_SKIP_INSTRUCTION; |
257 |
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258 |
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// Ignore all other faults, if requested |
259 |
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if (PrefsFindBool("ignoresegv")) |
260 |
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return SIGSEGV_RETURN_SKIP_INSTRUCTION; |
261 |
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#endif |
262 |
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263 |
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return SIGSEGV_RETURN_FAILURE; |
264 |
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} |
265 |
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266 |
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/* |
267 |
gbeauche |
1.47 |
* Dump state when everything went wrong after a SEGV |
268 |
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*/ |
269 |
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270 |
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static void sigsegv_dump_state(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction) |
271 |
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{ |
272 |
gbeauche |
1.50 |
fprintf(stderr, "Caught SIGSEGV at address %p", fault_address); |
273 |
gbeauche |
1.47 |
if (fault_instruction != SIGSEGV_INVALID_PC) |
274 |
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fprintf(stderr, " [IP=%p]", fault_instruction); |
275 |
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fprintf(stderr, "\n"); |
276 |
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#if EMULATED_68K |
277 |
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uaecptr nextpc; |
278 |
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extern void m68k_dumpstate(uaecptr *nextpc); |
279 |
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m68k_dumpstate(&nextpc); |
280 |
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#endif |
281 |
gbeauche |
1.50 |
#if USE_JIT && JIT_DEBUG |
282 |
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extern void compiler_dumpstate(void); |
283 |
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compiler_dumpstate(); |
284 |
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#endif |
285 |
gbeauche |
1.47 |
VideoQuitFullScreen(); |
286 |
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#ifdef ENABLE_MON |
287 |
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char *arg[4] = {"mon", "-m", "-r", NULL}; |
288 |
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mon(3, arg); |
289 |
gbeauche |
1.66 |
#endif |
290 |
gbeauche |
1.47 |
QuitEmulator(); |
291 |
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} |
292 |
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293 |
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294 |
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/* |
295 |
gbeauche |
1.67 |
* Update virtual clock and trigger interrupts if necessary |
296 |
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*/ |
297 |
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298 |
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#ifdef USE_CPU_EMUL_SERVICES |
299 |
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static uint64 n_check_ticks = 0; |
300 |
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static uint64 emulated_ticks_start = 0; |
301 |
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static uint64 emulated_ticks_count = 0; |
302 |
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static int64 emulated_ticks_current = 0; |
303 |
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static int32 emulated_ticks_quantum = 1000; |
304 |
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int32 emulated_ticks = emulated_ticks_quantum; |
305 |
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306 |
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void cpu_do_check_ticks(void) |
307 |
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{ |
308 |
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#if DEBUG |
309 |
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n_check_ticks++; |
310 |
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#endif |
311 |
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312 |
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uint64 now; |
313 |
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static uint64 next = 0; |
314 |
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if (next == 0) |
315 |
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next = emulated_ticks_start = GetTicks_usec(); |
316 |
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317 |
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// Update total instructions count |
318 |
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if (emulated_ticks <= 0) { |
319 |
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emulated_ticks_current += (emulated_ticks_quantum - emulated_ticks); |
320 |
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// XXX: can you really have a machine fast enough to overflow |
321 |
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// a 63-bit m68k instruction counter within 16 ms? |
322 |
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if (emulated_ticks_current < 0) { |
323 |
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printf("WARNING: Overflowed 63-bit m68k instruction counter in less than 16 ms!\n"); |
324 |
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goto recalibrate_quantum; |
325 |
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} |
326 |
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} |
327 |
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328 |
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// Check for interrupt opportunity |
329 |
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now = GetTicks_usec(); |
330 |
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if (next < now) { |
331 |
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one_tick(); |
332 |
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do { |
333 |
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next += 16625; |
334 |
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} while (next < now); |
335 |
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emulated_ticks_count++; |
336 |
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|
337 |
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// Recalibrate 1000 Hz quantum every 10 ticks |
338 |
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static uint64 last = 0; |
339 |
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if (last == 0) |
340 |
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last = now; |
341 |
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else if (now - last > 166250) { |
342 |
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recalibrate_quantum: |
343 |
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emulated_ticks_quantum = ((uint64)emulated_ticks_current * 1000) / (now - last); |
344 |
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emulated_ticks_current = 0; |
345 |
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last = now; |
346 |
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} |
347 |
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} |
348 |
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|
349 |
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// Update countdown |
350 |
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if (emulated_ticks <= 0) |
351 |
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emulated_ticks += emulated_ticks_quantum; |
352 |
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} |
353 |
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#endif |
354 |
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|
355 |
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356 |
|
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/* |
357 |
cebix |
1.1 |
* Main program |
358 |
|
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*/ |
359 |
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|
360 |
cebix |
1.32 |
static void usage(const char *prg_name) |
361 |
|
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{ |
362 |
cebix |
1.48 |
printf( |
363 |
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"Usage: %s [OPTION...]\n" |
364 |
|
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"\nUnix options:\n" |
365 |
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" --config FILE\n read/write configuration from/to FILE\n" |
366 |
|
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" --display STRING\n X display to use\n" |
367 |
|
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" --break ADDRESS\n set ROM breakpoint\n" |
368 |
|
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" --rominfo\n dump ROM information\n", prg_name |
369 |
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); |
370 |
|
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LoadPrefs(); // read the prefs file so PrefsPrintUsage() will print the correct default values |
371 |
cebix |
1.32 |
PrefsPrintUsage(); |
372 |
|
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exit(0); |
373 |
|
|
} |
374 |
|
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|
375 |
cebix |
1.1 |
int main(int argc, char **argv) |
376 |
|
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{ |
377 |
cebix |
1.12 |
char str[256]; |
378 |
|
|
|
379 |
cebix |
1.1 |
// Initialize variables |
380 |
|
|
RAMBaseHost = NULL; |
381 |
|
|
ROMBaseHost = NULL; |
382 |
|
|
srand(time(NULL)); |
383 |
|
|
tzset(); |
384 |
|
|
|
385 |
|
|
// Print some info |
386 |
|
|
printf(GetString(STR_ABOUT_TEXT1), VERSION_MAJOR, VERSION_MINOR); |
387 |
|
|
printf(" %s\n", GetString(STR_ABOUT_TEXT2)); |
388 |
|
|
|
389 |
cebix |
1.48 |
// Parse command line arguments |
390 |
|
|
for (int i=1; i<argc; i++) { |
391 |
|
|
if (strcmp(argv[i], "--help") == 0) { |
392 |
|
|
usage(argv[0]); |
393 |
gbeauche |
1.59 |
#ifndef USE_SDL_VIDEO |
394 |
cebix |
1.48 |
} else if (strcmp(argv[i], "--display") == 0) { |
395 |
|
|
i++; // don't remove the argument, gtk_init() needs it too |
396 |
|
|
if (i < argc) |
397 |
|
|
x_display_name = strdup(argv[i]); |
398 |
gbeauche |
1.59 |
#endif |
399 |
cebix |
1.48 |
} else if (strcmp(argv[i], "--break") == 0) { |
400 |
|
|
argv[i++] = NULL; |
401 |
|
|
if (i < argc) { |
402 |
|
|
ROMBreakpoint = strtol(argv[i], NULL, 0); |
403 |
|
|
argv[i] = NULL; |
404 |
|
|
} |
405 |
|
|
} else if (strcmp(argv[i], "--config") == 0) { |
406 |
|
|
argv[i++] = NULL; |
407 |
|
|
if (i < argc) { |
408 |
|
|
extern string UserPrefsPath; // from prefs_unix.cpp |
409 |
|
|
UserPrefsPath = argv[i]; |
410 |
|
|
argv[i] = NULL; |
411 |
|
|
} |
412 |
|
|
} else if (strcmp(argv[i], "--rominfo") == 0) { |
413 |
|
|
argv[i] = NULL; |
414 |
|
|
PrintROMInfo = true; |
415 |
|
|
} |
416 |
|
|
} |
417 |
|
|
|
418 |
|
|
// Remove processed arguments |
419 |
|
|
for (int i=1; i<argc; i++) { |
420 |
|
|
int k; |
421 |
|
|
for (k=i; k<argc; k++) |
422 |
|
|
if (argv[k] != NULL) |
423 |
|
|
break; |
424 |
|
|
if (k > i) { |
425 |
|
|
k -= i; |
426 |
|
|
for (int j=i+k; j<argc; j++) |
427 |
|
|
argv[j-k] = argv[j]; |
428 |
|
|
argc -= k; |
429 |
|
|
} |
430 |
|
|
} |
431 |
|
|
|
432 |
cebix |
1.28 |
#ifdef ENABLE_GTK |
433 |
cebix |
1.43 |
#ifdef HAVE_GNOMEUI |
434 |
|
|
// Init GNOME/GTK |
435 |
|
|
char version[16]; |
436 |
|
|
sprintf(version, "%d.%d", VERSION_MAJOR, VERSION_MINOR); |
437 |
|
|
gnome_init("Basilisk II", version, argc, argv); |
438 |
|
|
#else |
439 |
cebix |
1.28 |
// Init GTK |
440 |
|
|
gtk_set_locale(); |
441 |
|
|
gtk_init(&argc, &argv); |
442 |
cebix |
1.43 |
#endif |
443 |
cebix |
1.28 |
#endif |
444 |
|
|
|
445 |
cebix |
1.32 |
// Read preferences |
446 |
|
|
PrefsInit(argc, argv); |
447 |
|
|
|
448 |
cebix |
1.48 |
// Any command line arguments left? |
449 |
cebix |
1.1 |
for (int i=1; i<argc; i++) { |
450 |
cebix |
1.48 |
if (argv[i][0] == '-') { |
451 |
cebix |
1.32 |
fprintf(stderr, "Unrecognized option '%s'\n", argv[i]); |
452 |
|
|
usage(argv[0]); |
453 |
cebix |
1.28 |
} |
454 |
cebix |
1.1 |
} |
455 |
|
|
|
456 |
gbeauche |
1.59 |
#ifndef USE_SDL_VIDEO |
457 |
cebix |
1.1 |
// Open display |
458 |
|
|
x_display = XOpenDisplay(x_display_name); |
459 |
|
|
if (x_display == NULL) { |
460 |
|
|
char str[256]; |
461 |
|
|
sprintf(str, GetString(STR_NO_XSERVER_ERR), XDisplayName(x_display_name)); |
462 |
|
|
ErrorAlert(str); |
463 |
|
|
QuitEmulator(); |
464 |
|
|
} |
465 |
|
|
|
466 |
cebix |
1.12 |
#if defined(ENABLE_XF86_DGA) && !defined(ENABLE_MON) |
467 |
cebix |
1.1 |
// Fork out, so we can return from fullscreen mode when things get ugly |
468 |
cebix |
1.2 |
XF86DGAForkApp(DefaultScreen(x_display)); |
469 |
cebix |
1.1 |
#endif |
470 |
gbeauche |
1.59 |
#endif |
471 |
|
|
|
472 |
|
|
#ifdef USE_SDL |
473 |
|
|
// Initialize SDL system |
474 |
|
|
int sdl_flags = 0; |
475 |
|
|
#ifdef USE_SDL_VIDEO |
476 |
|
|
sdl_flags |= SDL_INIT_VIDEO; |
477 |
|
|
#endif |
478 |
gbeauche |
1.61 |
#ifdef USE_SDL_AUDIO |
479 |
|
|
sdl_flags |= SDL_INIT_AUDIO; |
480 |
|
|
#endif |
481 |
gbeauche |
1.59 |
assert(sdl_flags != 0); |
482 |
|
|
if (SDL_Init(sdl_flags) == -1) { |
483 |
|
|
char str[256]; |
484 |
|
|
sprintf(str, "Could not initialize SDL: %s.\n", SDL_GetError()); |
485 |
|
|
ErrorAlert(str); |
486 |
|
|
QuitEmulator(); |
487 |
|
|
} |
488 |
gbeauche |
1.60 |
atexit(SDL_Quit); |
489 |
gbeauche |
1.59 |
#endif |
490 |
cebix |
1.1 |
|
491 |
|
|
// Init system routines |
492 |
|
|
SysInit(); |
493 |
|
|
|
494 |
|
|
// Show preferences editor |
495 |
|
|
if (!PrefsFindBool("nogui")) |
496 |
|
|
if (!PrefsEditor()) |
497 |
|
|
QuitEmulator(); |
498 |
gbeauche |
1.46 |
|
499 |
gbeauche |
1.54 |
// Install the handler for SIGSEGV |
500 |
gbeauche |
1.55 |
if (!sigsegv_install_handler(sigsegv_handler)) { |
501 |
|
|
sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGSEGV", strerror(errno)); |
502 |
|
|
ErrorAlert(str); |
503 |
|
|
QuitEmulator(); |
504 |
|
|
} |
505 |
gbeauche |
1.54 |
|
506 |
gbeauche |
1.47 |
// Register dump state function when we got mad after a segfault |
507 |
|
|
sigsegv_set_dump_state(sigsegv_dump_state); |
508 |
cebix |
1.1 |
|
509 |
cebix |
1.9 |
// Read RAM size |
510 |
cebix |
1.1 |
RAMSize = PrefsFindInt32("ramsize") & 0xfff00000; // Round down to 1MB boundary |
511 |
|
|
if (RAMSize < 1024*1024) { |
512 |
|
|
WarningAlert(GetString(STR_SMALL_RAM_WARN)); |
513 |
|
|
RAMSize = 1024*1024; |
514 |
|
|
} |
515 |
cebix |
1.9 |
|
516 |
gbeauche |
1.20 |
#if REAL_ADDRESSING || DIRECT_ADDRESSING |
517 |
gbeauche |
1.33 |
RAMSize = RAMSize & -getpagesize(); // Round down to page boundary |
518 |
gbeauche |
1.20 |
#endif |
519 |
gbeauche |
1.33 |
|
520 |
|
|
// Initialize VM system |
521 |
|
|
vm_init(); |
522 |
gbeauche |
1.20 |
|
523 |
cebix |
1.12 |
#if REAL_ADDRESSING |
524 |
gbeauche |
1.33 |
// Flag: RAM and ROM are contigously allocated from address 0 |
525 |
|
|
bool memory_mapped_from_zero = false; |
526 |
|
|
|
527 |
|
|
// Under Solaris/SPARC and NetBSD/m68k, Basilisk II is known to crash |
528 |
|
|
// when trying to map a too big chunk of memory starting at address 0 |
529 |
gbeauche |
1.56 |
#if defined(OS_solaris) || defined(OS_netbsd) || defined(PAGEZERO_HACK) |
530 |
gbeauche |
1.33 |
const bool can_map_all_memory = false; |
531 |
gbeauche |
1.20 |
#else |
532 |
gbeauche |
1.33 |
const bool can_map_all_memory = true; |
533 |
gbeauche |
1.20 |
#endif |
534 |
gbeauche |
1.33 |
|
535 |
|
|
// Try to allocate all memory from 0x0000, if it is not known to crash |
536 |
|
|
if (can_map_all_memory && (vm_acquire_fixed(0, RAMSize + 0x100000) == 0)) { |
537 |
gbeauche |
1.20 |
D(bug("Could allocate RAM and ROM from 0x0000\n")); |
538 |
|
|
memory_mapped_from_zero = true; |
539 |
|
|
} |
540 |
gbeauche |
1.33 |
|
541 |
gbeauche |
1.56 |
#ifndef PAGEZERO_HACK |
542 |
gbeauche |
1.33 |
// Otherwise, just create the Low Memory area (0x0000..0x2000) |
543 |
|
|
else if (vm_acquire_fixed(0, 0x2000) == 0) { |
544 |
gbeauche |
1.20 |
D(bug("Could allocate the Low Memory globals\n")); |
545 |
|
|
lm_area_mapped = true; |
546 |
|
|
} |
547 |
gbeauche |
1.33 |
|
548 |
|
|
// Exit on failure |
549 |
gbeauche |
1.20 |
else { |
550 |
cebix |
1.12 |
sprintf(str, GetString(STR_LOW_MEM_MMAP_ERR), strerror(errno)); |
551 |
|
|
ErrorAlert(str); |
552 |
|
|
QuitEmulator(); |
553 |
|
|
} |
554 |
|
|
#endif |
555 |
gbeauche |
1.56 |
#endif /* REAL_ADDRESSING */ |
556 |
cebix |
1.12 |
|
557 |
cebix |
1.9 |
// Create areas for Mac RAM and ROM |
558 |
gbeauche |
1.20 |
#if REAL_ADDRESSING |
559 |
|
|
if (memory_mapped_from_zero) { |
560 |
|
|
RAMBaseHost = (uint8 *)0; |
561 |
gbeauche |
1.33 |
ROMBaseHost = RAMBaseHost + RAMSize; |
562 |
gbeauche |
1.20 |
} |
563 |
|
|
else |
564 |
|
|
#endif |
565 |
|
|
{ |
566 |
gbeauche |
1.62 |
#ifdef USE_33BIT_ADDRESSING |
567 |
|
|
// Speculatively enables 33-bit addressing |
568 |
|
|
ThirtyThreeBitAddressing = true; |
569 |
|
|
#endif |
570 |
|
|
RAMBaseHost = (uint8 *)vm_acquire_mac(RAMSize); |
571 |
|
|
ROMBaseHost = (uint8 *)vm_acquire_mac(0x100000); |
572 |
gbeauche |
1.33 |
if (RAMBaseHost == VM_MAP_FAILED || ROMBaseHost == VM_MAP_FAILED) { |
573 |
cebix |
1.36 |
ErrorAlert(STR_NO_MEM_ERR); |
574 |
gbeauche |
1.20 |
QuitEmulator(); |
575 |
|
|
} |
576 |
|
|
} |
577 |
gbeauche |
1.38 |
|
578 |
|
|
#if USE_SCRATCHMEM_SUBTERFUGE |
579 |
|
|
// Allocate scratch memory |
580 |
|
|
ScratchMem = (uint8 *)vm_acquire(SCRATCH_MEM_SIZE); |
581 |
|
|
if (ScratchMem == VM_MAP_FAILED) { |
582 |
|
|
ErrorAlert(STR_NO_MEM_ERR); |
583 |
|
|
QuitEmulator(); |
584 |
|
|
} |
585 |
|
|
ScratchMem += SCRATCH_MEM_SIZE/2; // ScratchMem points to middle of block |
586 |
|
|
#endif |
587 |
cebix |
1.22 |
|
588 |
gbeauche |
1.20 |
#if DIRECT_ADDRESSING |
589 |
gbeauche |
1.33 |
// RAMBaseMac shall always be zero |
590 |
|
|
MEMBaseDiff = (uintptr)RAMBaseHost; |
591 |
gbeauche |
1.20 |
RAMBaseMac = 0; |
592 |
gbeauche |
1.33 |
ROMBaseMac = Host2MacAddr(ROMBaseHost); |
593 |
gbeauche |
1.20 |
#endif |
594 |
gbeauche |
1.33 |
#if REAL_ADDRESSING |
595 |
cebix |
1.12 |
RAMBaseMac = (uint32)RAMBaseHost; |
596 |
|
|
ROMBaseMac = (uint32)ROMBaseHost; |
597 |
|
|
#endif |
598 |
|
|
D(bug("Mac RAM starts at %p (%08x)\n", RAMBaseHost, RAMBaseMac)); |
599 |
|
|
D(bug("Mac ROM starts at %p (%08x)\n", ROMBaseHost, ROMBaseMac)); |
600 |
gbeauche |
1.20 |
|
601 |
cebix |
1.1 |
// Get rom file path from preferences |
602 |
|
|
const char *rom_path = PrefsFindString("rom"); |
603 |
|
|
|
604 |
|
|
// Load Mac ROM |
605 |
|
|
int rom_fd = open(rom_path ? rom_path : ROM_FILE_NAME, O_RDONLY); |
606 |
|
|
if (rom_fd < 0) { |
607 |
cebix |
1.36 |
ErrorAlert(STR_NO_ROM_FILE_ERR); |
608 |
cebix |
1.1 |
QuitEmulator(); |
609 |
|
|
} |
610 |
|
|
printf(GetString(STR_READING_ROM_FILE)); |
611 |
|
|
ROMSize = lseek(rom_fd, 0, SEEK_END); |
612 |
|
|
if (ROMSize != 64*1024 && ROMSize != 128*1024 && ROMSize != 256*1024 && ROMSize != 512*1024 && ROMSize != 1024*1024) { |
613 |
cebix |
1.36 |
ErrorAlert(STR_ROM_SIZE_ERR); |
614 |
cebix |
1.1 |
close(rom_fd); |
615 |
|
|
QuitEmulator(); |
616 |
|
|
} |
617 |
|
|
lseek(rom_fd, 0, SEEK_SET); |
618 |
|
|
if (read(rom_fd, ROMBaseHost, ROMSize) != (ssize_t)ROMSize) { |
619 |
cebix |
1.36 |
ErrorAlert(STR_ROM_FILE_READ_ERR); |
620 |
cebix |
1.1 |
close(rom_fd); |
621 |
|
|
QuitEmulator(); |
622 |
|
|
} |
623 |
|
|
|
624 |
cebix |
1.12 |
#if !EMULATED_68K |
625 |
|
|
// Get CPU model |
626 |
|
|
int mib[2] = {CTL_HW, HW_MODEL}; |
627 |
|
|
char *model; |
628 |
|
|
size_t model_len; |
629 |
|
|
sysctl(mib, 2, NULL, &model_len, NULL, 0); |
630 |
|
|
model = (char *)malloc(model_len); |
631 |
|
|
sysctl(mib, 2, model, &model_len, NULL, 0); |
632 |
|
|
D(bug("Model: %s\n", model)); |
633 |
|
|
|
634 |
|
|
// Set CPU and FPU type |
635 |
|
|
CPUIs68060 = false; |
636 |
|
|
if (strstr(model, "020")) |
637 |
|
|
CPUType = 2; |
638 |
|
|
else if (strstr(model, "030")) |
639 |
|
|
CPUType = 3; |
640 |
|
|
else if (strstr(model, "040")) |
641 |
|
|
CPUType = 4; |
642 |
|
|
else if (strstr(model, "060")) { |
643 |
|
|
CPUType = 4; |
644 |
|
|
CPUIs68060 = true; |
645 |
|
|
} else { |
646 |
|
|
printf("WARNING: Cannot detect CPU type, assuming 68020\n"); |
647 |
|
|
CPUType = 2; |
648 |
|
|
} |
649 |
cebix |
1.24 |
FPUType = 1; // NetBSD has an FPU emulation, so the FPU ought to be available at all times |
650 |
cebix |
1.12 |
TwentyFourBitAddressing = false; |
651 |
|
|
#endif |
652 |
|
|
|
653 |
cebix |
1.3 |
// Initialize everything |
654 |
|
|
if (!InitAll()) |
655 |
cebix |
1.1 |
QuitEmulator(); |
656 |
cebix |
1.12 |
D(bug("Initialization complete\n")); |
657 |
|
|
|
658 |
gbeauche |
1.51 |
#if !EMULATED_68K |
659 |
|
|
// (Virtual) supervisor mode, disable interrupts |
660 |
|
|
EmulatedSR = 0x2700; |
661 |
|
|
|
662 |
cebix |
1.12 |
#ifdef HAVE_PTHREADS |
663 |
|
|
// Get handle of main thread |
664 |
|
|
emul_thread = pthread_self(); |
665 |
|
|
#endif |
666 |
|
|
|
667 |
|
|
// Create and install stack for signal handlers |
668 |
|
|
sig_stack = malloc(SIG_STACK_SIZE); |
669 |
|
|
D(bug("Signal stack at %p\n", sig_stack)); |
670 |
|
|
if (sig_stack == NULL) { |
671 |
cebix |
1.36 |
ErrorAlert(STR_NOT_ENOUGH_MEMORY_ERR); |
672 |
cebix |
1.12 |
QuitEmulator(); |
673 |
|
|
} |
674 |
|
|
stack_t new_stack; |
675 |
|
|
new_stack.ss_sp = sig_stack; |
676 |
|
|
new_stack.ss_flags = 0; |
677 |
|
|
new_stack.ss_size = SIG_STACK_SIZE; |
678 |
|
|
if (sigaltstack(&new_stack, NULL) < 0) { |
679 |
|
|
sprintf(str, GetString(STR_SIGALTSTACK_ERR), strerror(errno)); |
680 |
|
|
ErrorAlert(str); |
681 |
|
|
QuitEmulator(); |
682 |
|
|
} |
683 |
|
|
|
684 |
|
|
// Install SIGILL handler for emulating privileged instructions and |
685 |
|
|
// executing A-Trap and EMUL_OP opcodes |
686 |
|
|
sigemptyset(&sigill_sa.sa_mask); // Block virtual 68k interrupts during SIGILL handling |
687 |
|
|
sigaddset(&sigill_sa.sa_mask, SIG_IRQ); |
688 |
|
|
sigaddset(&sigill_sa.sa_mask, SIGALRM); |
689 |
|
|
sigill_sa.sa_handler = (void (*)(int))sigill_handler; |
690 |
|
|
sigill_sa.sa_flags = SA_ONSTACK; |
691 |
|
|
if (sigaction(SIGILL, &sigill_sa, NULL) < 0) { |
692 |
|
|
sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGILL", strerror(errno)); |
693 |
|
|
ErrorAlert(str); |
694 |
|
|
QuitEmulator(); |
695 |
|
|
} |
696 |
|
|
|
697 |
|
|
// Install virtual 68k interrupt signal handler |
698 |
|
|
sigemptyset(&sigirq_sa.sa_mask); |
699 |
|
|
sigaddset(&sigirq_sa.sa_mask, SIGALRM); |
700 |
|
|
sigirq_sa.sa_handler = (void (*)(int))sigirq_handler; |
701 |
|
|
sigirq_sa.sa_flags = SA_ONSTACK | SA_RESTART; |
702 |
|
|
if (sigaction(SIG_IRQ, &sigirq_sa, NULL) < 0) { |
703 |
|
|
sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIG_IRQ", strerror(errno)); |
704 |
|
|
ErrorAlert(str); |
705 |
|
|
QuitEmulator(); |
706 |
|
|
} |
707 |
|
|
#endif |
708 |
cebix |
1.1 |
|
709 |
cebix |
1.12 |
#ifdef ENABLE_MON |
710 |
|
|
// Setup SIGINT handler to enter mon |
711 |
|
|
sigemptyset(&sigint_sa.sa_mask); |
712 |
cebix |
1.21 |
sigint_sa.sa_handler = (void (*)(int))sigint_handler; |
713 |
cebix |
1.12 |
sigint_sa.sa_flags = 0; |
714 |
|
|
sigaction(SIGINT, &sigint_sa, NULL); |
715 |
|
|
#endif |
716 |
cebix |
1.1 |
|
717 |
gbeauche |
1.67 |
#ifndef USE_CPU_EMUL_SERVICES |
718 |
cebix |
1.39 |
#if defined(HAVE_PTHREADS) |
719 |
|
|
|
720 |
|
|
// POSIX threads available, start 60Hz thread |
721 |
cebix |
1.44 |
Set_pthread_attr(&tick_thread_attr, 0); |
722 |
cebix |
1.39 |
tick_thread_active = (pthread_create(&tick_thread, &tick_thread_attr, tick_func, NULL) == 0); |
723 |
|
|
if (!tick_thread_active) { |
724 |
|
|
sprintf(str, GetString(STR_TICK_THREAD_ERR), strerror(errno)); |
725 |
|
|
ErrorAlert(str); |
726 |
|
|
QuitEmulator(); |
727 |
|
|
} |
728 |
|
|
D(bug("60Hz thread started\n")); |
729 |
|
|
|
730 |
|
|
#elif defined(HAVE_TIMER_CREATE) && defined(_POSIX_REALTIME_SIGNALS) |
731 |
cebix |
1.12 |
|
732 |
|
|
// POSIX.4 timers and real-time signals available, start 60Hz timer |
733 |
cebix |
1.1 |
sigemptyset(&timer_sa.sa_mask); |
734 |
cebix |
1.19 |
timer_sa.sa_sigaction = (void (*)(int, siginfo_t *, void *))one_tick; |
735 |
cebix |
1.1 |
timer_sa.sa_flags = SA_SIGINFO | SA_RESTART; |
736 |
|
|
if (sigaction(SIG_TIMER, &timer_sa, NULL) < 0) { |
737 |
cebix |
1.12 |
sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIG_TIMER", strerror(errno)); |
738 |
|
|
ErrorAlert(str); |
739 |
cebix |
1.1 |
QuitEmulator(); |
740 |
|
|
} |
741 |
|
|
struct sigevent timer_event; |
742 |
|
|
timer_event.sigev_notify = SIGEV_SIGNAL; |
743 |
|
|
timer_event.sigev_signo = SIG_TIMER; |
744 |
|
|
if (timer_create(CLOCK_REALTIME, &timer_event, &timer) < 0) { |
745 |
cebix |
1.12 |
sprintf(str, GetString(STR_TIMER_CREATE_ERR), strerror(errno)); |
746 |
|
|
ErrorAlert(str); |
747 |
cebix |
1.1 |
QuitEmulator(); |
748 |
|
|
} |
749 |
|
|
struct itimerspec req; |
750 |
|
|
req.it_value.tv_sec = 0; |
751 |
|
|
req.it_value.tv_nsec = 16625000; |
752 |
|
|
req.it_interval.tv_sec = 0; |
753 |
|
|
req.it_interval.tv_nsec = 16625000; |
754 |
cebix |
1.10 |
if (timer_settime(timer, 0, &req, NULL) < 0) { |
755 |
cebix |
1.12 |
sprintf(str, GetString(STR_TIMER_SETTIME_ERR), strerror(errno)); |
756 |
|
|
ErrorAlert(str); |
757 |
cebix |
1.1 |
QuitEmulator(); |
758 |
|
|
} |
759 |
cebix |
1.12 |
D(bug("60Hz timer started\n")); |
760 |
cebix |
1.1 |
|
761 |
cebix |
1.12 |
#else |
762 |
|
|
|
763 |
|
|
// Start 60Hz timer |
764 |
|
|
sigemptyset(&timer_sa.sa_mask); // Block virtual 68k interrupts during SIGARLM handling |
765 |
cebix |
1.53 |
#if !EMULATED_68K |
766 |
cebix |
1.12 |
sigaddset(&timer_sa.sa_mask, SIG_IRQ); |
767 |
cebix |
1.53 |
#endif |
768 |
cebix |
1.12 |
timer_sa.sa_handler = one_tick; |
769 |
|
|
timer_sa.sa_flags = SA_ONSTACK | SA_RESTART; |
770 |
|
|
if (sigaction(SIGALRM, &timer_sa, NULL) < 0) { |
771 |
|
|
sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGALRM", strerror(errno)); |
772 |
|
|
ErrorAlert(str); |
773 |
cebix |
1.1 |
QuitEmulator(); |
774 |
|
|
} |
775 |
cebix |
1.12 |
struct itimerval req; |
776 |
|
|
req.it_interval.tv_sec = req.it_value.tv_sec = 0; |
777 |
|
|
req.it_interval.tv_usec = req.it_value.tv_usec = 16625; |
778 |
|
|
setitimer(ITIMER_REAL, &req, NULL); |
779 |
|
|
|
780 |
cebix |
1.1 |
#endif |
781 |
gbeauche |
1.67 |
#endif |
782 |
cebix |
1.1 |
|
783 |
gbeauche |
1.67 |
#ifdef USE_PTHREADS_SERVICES |
784 |
cebix |
1.12 |
// Start XPRAM watchdog thread |
785 |
cebix |
1.41 |
memcpy(last_xpram, XPRAM, XPRAM_SIZE); |
786 |
cebix |
1.12 |
xpram_thread_active = (pthread_create(&xpram_thread, NULL, xpram_func, NULL) == 0); |
787 |
|
|
D(bug("XPRAM thread started\n")); |
788 |
cebix |
1.4 |
#endif |
789 |
|
|
|
790 |
cebix |
1.1 |
// Start 68k and jump to ROM boot routine |
791 |
cebix |
1.12 |
D(bug("Starting emulation...\n")); |
792 |
cebix |
1.1 |
Start680x0(); |
793 |
|
|
|
794 |
|
|
QuitEmulator(); |
795 |
|
|
return 0; |
796 |
|
|
} |
797 |
|
|
|
798 |
|
|
|
799 |
|
|
/* |
800 |
|
|
* Quit emulator |
801 |
|
|
*/ |
802 |
|
|
|
803 |
|
|
void QuitEmulator(void) |
804 |
|
|
{ |
805 |
cebix |
1.12 |
D(bug("QuitEmulator\n")); |
806 |
|
|
|
807 |
|
|
#if EMULATED_68K |
808 |
cebix |
1.1 |
// Exit 680x0 emulation |
809 |
|
|
Exit680x0(); |
810 |
cebix |
1.12 |
#endif |
811 |
cebix |
1.1 |
|
812 |
gbeauche |
1.67 |
#if defined(USE_CPU_EMUL_SERVICES) |
813 |
|
|
// Show statistics |
814 |
|
|
uint64 emulated_ticks_end = GetTicks_usec(); |
815 |
|
|
D(bug("%ld ticks in %ld usec = %f ticks/sec [%ld tick checks]\n", |
816 |
|
|
(long)emulated_ticks_count, (long)(emulated_ticks_end - emulated_ticks_start), |
817 |
|
|
emulated_ticks_count * 1000000.0 / (emulated_ticks_end - emulated_ticks_start), (long)n_check_ticks)); |
818 |
|
|
#elif defined(USE_PTHREADS_SERVICES) |
819 |
cebix |
1.1 |
// Stop 60Hz thread |
820 |
|
|
if (tick_thread_active) { |
821 |
|
|
tick_thread_cancel = true; |
822 |
|
|
#ifdef HAVE_PTHREAD_CANCEL |
823 |
|
|
pthread_cancel(tick_thread); |
824 |
|
|
#endif |
825 |
|
|
pthread_join(tick_thread, NULL); |
826 |
|
|
} |
827 |
cebix |
1.39 |
#elif defined(HAVE_TIMER_CREATE) && defined(_POSIX_REALTIME_SIGNALS) |
828 |
|
|
// Stop 60Hz timer |
829 |
|
|
timer_delete(timer); |
830 |
cebix |
1.12 |
#else |
831 |
|
|
struct itimerval req; |
832 |
|
|
req.it_interval.tv_sec = req.it_value.tv_sec = 0; |
833 |
|
|
req.it_interval.tv_usec = req.it_value.tv_usec = 0; |
834 |
|
|
setitimer(ITIMER_REAL, &req, NULL); |
835 |
cebix |
1.1 |
#endif |
836 |
|
|
|
837 |
gbeauche |
1.67 |
#ifdef USE_PTHREADS_SERVICES |
838 |
cebix |
1.1 |
// Stop XPRAM watchdog thread |
839 |
|
|
if (xpram_thread_active) { |
840 |
|
|
xpram_thread_cancel = true; |
841 |
|
|
#ifdef HAVE_PTHREAD_CANCEL |
842 |
|
|
pthread_cancel(xpram_thread); |
843 |
|
|
#endif |
844 |
|
|
pthread_join(xpram_thread, NULL); |
845 |
|
|
} |
846 |
cebix |
1.12 |
#endif |
847 |
cebix |
1.1 |
|
848 |
cebix |
1.3 |
// Deinitialize everything |
849 |
|
|
ExitAll(); |
850 |
cebix |
1.1 |
|
851 |
cebix |
1.22 |
// Free ROM/RAM areas |
852 |
gbeauche |
1.33 |
if (RAMBaseHost != VM_MAP_FAILED) { |
853 |
|
|
vm_release(RAMBaseHost, RAMSize); |
854 |
cebix |
1.22 |
RAMBaseHost = NULL; |
855 |
gbeauche |
1.20 |
} |
856 |
gbeauche |
1.33 |
if (ROMBaseHost != VM_MAP_FAILED) { |
857 |
|
|
vm_release(ROMBaseHost, 0x100000); |
858 |
cebix |
1.17 |
ROMBaseHost = NULL; |
859 |
|
|
} |
860 |
cebix |
1.1 |
|
861 |
cebix |
1.22 |
#if USE_SCRATCHMEM_SUBTERFUGE |
862 |
cebix |
1.12 |
// Delete scratch memory area |
863 |
gbeauche |
1.33 |
if (ScratchMem != (uint8 *)VM_MAP_FAILED) { |
864 |
|
|
vm_release((void *)(ScratchMem - SCRATCH_MEM_SIZE/2), SCRATCH_MEM_SIZE); |
865 |
cebix |
1.17 |
ScratchMem = NULL; |
866 |
|
|
} |
867 |
cebix |
1.12 |
#endif |
868 |
|
|
|
869 |
|
|
#if REAL_ADDRESSING |
870 |
|
|
// Delete Low Memory area |
871 |
|
|
if (lm_area_mapped) |
872 |
gbeauche |
1.33 |
vm_release(0, 0x2000); |
873 |
cebix |
1.12 |
#endif |
874 |
gbeauche |
1.33 |
|
875 |
|
|
// Exit VM wrappers |
876 |
|
|
vm_exit(); |
877 |
cebix |
1.12 |
|
878 |
cebix |
1.1 |
// Exit system routines |
879 |
|
|
SysExit(); |
880 |
|
|
|
881 |
|
|
// Exit preferences |
882 |
|
|
PrefsExit(); |
883 |
|
|
|
884 |
|
|
// Close X11 server connection |
885 |
gbeauche |
1.60 |
#ifndef USE_SDL_VIDEO |
886 |
cebix |
1.1 |
if (x_display) |
887 |
|
|
XCloseDisplay(x_display); |
888 |
gbeauche |
1.59 |
#endif |
889 |
cebix |
1.1 |
|
890 |
|
|
exit(0); |
891 |
|
|
} |
892 |
|
|
|
893 |
|
|
|
894 |
|
|
/* |
895 |
|
|
* Code was patched, flush caches if neccessary (i.e. when using a real 680x0 |
896 |
|
|
* or a dynamically recompiling emulator) |
897 |
|
|
*/ |
898 |
|
|
|
899 |
|
|
void FlushCodeCache(void *start, uint32 size) |
900 |
|
|
{ |
901 |
gbeauche |
1.50 |
#if USE_JIT |
902 |
|
|
if (UseJIT) |
903 |
gbeauche |
1.57 |
flush_icache_range((uintptr)start, size); |
904 |
gbeauche |
1.50 |
#endif |
905 |
cebix |
1.12 |
#if !EMULATED_68K && defined(__NetBSD__) |
906 |
|
|
m68k_sync_icache(start, size); |
907 |
|
|
#endif |
908 |
cebix |
1.4 |
} |
909 |
|
|
|
910 |
|
|
|
911 |
|
|
/* |
912 |
|
|
* SIGINT handler, enters mon |
913 |
|
|
*/ |
914 |
|
|
|
915 |
cebix |
1.12 |
#ifdef ENABLE_MON |
916 |
cebix |
1.4 |
static void sigint_handler(...) |
917 |
|
|
{ |
918 |
cebix |
1.12 |
#if EMULATED_68K |
919 |
cebix |
1.8 |
uaecptr nextpc; |
920 |
cebix |
1.12 |
extern void m68k_dumpstate(uaecptr *nextpc); |
921 |
cebix |
1.8 |
m68k_dumpstate(&nextpc); |
922 |
cebix |
1.34 |
#endif |
923 |
cebix |
1.37 |
VideoQuitFullScreen(); |
924 |
cebix |
1.21 |
char *arg[4] = {"mon", "-m", "-r", NULL}; |
925 |
|
|
mon(3, arg); |
926 |
cebix |
1.4 |
QuitEmulator(); |
927 |
cebix |
1.1 |
} |
928 |
|
|
#endif |
929 |
|
|
|
930 |
|
|
|
931 |
cebix |
1.44 |
#ifdef HAVE_PTHREADS |
932 |
|
|
/* |
933 |
cebix |
1.45 |
* Pthread configuration |
934 |
cebix |
1.44 |
*/ |
935 |
cebix |
1.45 |
|
936 |
|
|
void Set_pthread_attr(pthread_attr_t *attr, int priority) |
937 |
cebix |
1.44 |
{ |
938 |
|
|
pthread_attr_init(attr); |
939 |
|
|
#if defined(_POSIX_THREAD_PRIORITY_SCHEDULING) |
940 |
|
|
// Some of these only work for superuser |
941 |
|
|
if (geteuid() == 0) { |
942 |
|
|
pthread_attr_setinheritsched(attr, PTHREAD_EXPLICIT_SCHED); |
943 |
|
|
pthread_attr_setschedpolicy(attr, SCHED_FIFO); |
944 |
|
|
struct sched_param fifo_param; |
945 |
|
|
fifo_param.sched_priority = ((sched_get_priority_min(SCHED_FIFO) + |
946 |
|
|
sched_get_priority_max(SCHED_FIFO)) / 2 + |
947 |
|
|
priority); |
948 |
|
|
pthread_attr_setschedparam(attr, &fifo_param); |
949 |
|
|
} |
950 |
|
|
if (pthread_attr_setscope(attr, PTHREAD_SCOPE_SYSTEM) != 0) { |
951 |
|
|
#ifdef PTHREAD_SCOPE_BOUND_NP |
952 |
|
|
// If system scope is not available (eg. we're not running |
953 |
|
|
// with CAP_SCHED_MGT capability on an SGI box), try bound |
954 |
|
|
// scope. It exposes pthread scheduling to the kernel, |
955 |
|
|
// without setting realtime priority. |
956 |
|
|
pthread_attr_setscope(attr, PTHREAD_SCOPE_BOUND_NP); |
957 |
|
|
#endif |
958 |
|
|
} |
959 |
|
|
#endif |
960 |
|
|
} |
961 |
|
|
#endif // HAVE_PTHREADS |
962 |
|
|
|
963 |
|
|
|
964 |
cebix |
1.1 |
/* |
965 |
cebix |
1.37 |
* Mutexes |
966 |
|
|
*/ |
967 |
|
|
|
968 |
|
|
#ifdef HAVE_PTHREADS |
969 |
|
|
|
970 |
|
|
struct B2_mutex { |
971 |
cebix |
1.44 |
B2_mutex() { |
972 |
|
|
pthread_mutexattr_t attr; |
973 |
|
|
pthread_mutexattr_init(&attr); |
974 |
|
|
// Initialize the mutex for priority inheritance -- |
975 |
|
|
// required for accurate timing. |
976 |
gbeauche |
1.63 |
#if defined(HAVE_PTHREAD_MUTEXATTR_SETPROTOCOL) && !defined(__CYGWIN__) |
977 |
cebix |
1.44 |
pthread_mutexattr_setprotocol(&attr, PTHREAD_PRIO_INHERIT); |
978 |
|
|
#endif |
979 |
|
|
#if defined(HAVE_PTHREAD_MUTEXATTR_SETTYPE) && defined(PTHREAD_MUTEX_NORMAL) |
980 |
|
|
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_NORMAL); |
981 |
|
|
#endif |
982 |
gbeauche |
1.49 |
#ifdef HAVE_PTHREAD_MUTEXATTR_SETPSHARED |
983 |
cebix |
1.44 |
pthread_mutexattr_setpshared(&attr, PTHREAD_PROCESS_PRIVATE); |
984 |
gbeauche |
1.49 |
#endif |
985 |
cebix |
1.44 |
pthread_mutex_init(&m, &attr); |
986 |
|
|
pthread_mutexattr_destroy(&attr); |
987 |
|
|
} |
988 |
gbeauche |
1.51 |
~B2_mutex() { |
989 |
|
|
pthread_mutex_trylock(&m); // Make sure it's locked before |
990 |
|
|
pthread_mutex_unlock(&m); // unlocking it. |
991 |
|
|
pthread_mutex_destroy(&m); |
992 |
|
|
} |
993 |
cebix |
1.37 |
pthread_mutex_t m; |
994 |
|
|
}; |
995 |
|
|
|
996 |
|
|
B2_mutex *B2_create_mutex(void) |
997 |
|
|
{ |
998 |
|
|
return new B2_mutex; |
999 |
|
|
} |
1000 |
|
|
|
1001 |
|
|
void B2_lock_mutex(B2_mutex *mutex) |
1002 |
|
|
{ |
1003 |
|
|
pthread_mutex_lock(&mutex->m); |
1004 |
|
|
} |
1005 |
|
|
|
1006 |
|
|
void B2_unlock_mutex(B2_mutex *mutex) |
1007 |
|
|
{ |
1008 |
|
|
pthread_mutex_unlock(&mutex->m); |
1009 |
|
|
} |
1010 |
|
|
|
1011 |
|
|
void B2_delete_mutex(B2_mutex *mutex) |
1012 |
|
|
{ |
1013 |
|
|
delete mutex; |
1014 |
|
|
} |
1015 |
|
|
|
1016 |
|
|
#else |
1017 |
|
|
|
1018 |
|
|
struct B2_mutex { |
1019 |
|
|
int dummy; |
1020 |
|
|
}; |
1021 |
|
|
|
1022 |
|
|
B2_mutex *B2_create_mutex(void) |
1023 |
|
|
{ |
1024 |
|
|
return new B2_mutex; |
1025 |
|
|
} |
1026 |
|
|
|
1027 |
|
|
void B2_lock_mutex(B2_mutex *mutex) |
1028 |
|
|
{ |
1029 |
|
|
} |
1030 |
|
|
|
1031 |
|
|
void B2_unlock_mutex(B2_mutex *mutex) |
1032 |
|
|
{ |
1033 |
|
|
} |
1034 |
|
|
|
1035 |
|
|
void B2_delete_mutex(B2_mutex *mutex) |
1036 |
|
|
{ |
1037 |
|
|
delete mutex; |
1038 |
|
|
} |
1039 |
|
|
|
1040 |
|
|
#endif |
1041 |
|
|
|
1042 |
|
|
|
1043 |
|
|
/* |
1044 |
cebix |
1.1 |
* Interrupt flags (must be handled atomically!) |
1045 |
|
|
*/ |
1046 |
|
|
|
1047 |
|
|
uint32 InterruptFlags = 0; |
1048 |
|
|
|
1049 |
cebix |
1.12 |
#if EMULATED_68K |
1050 |
cebix |
1.1 |
void SetInterruptFlag(uint32 flag) |
1051 |
|
|
{ |
1052 |
cebix |
1.37 |
LOCK_INTFLAGS; |
1053 |
cebix |
1.1 |
InterruptFlags |= flag; |
1054 |
cebix |
1.37 |
UNLOCK_INTFLAGS; |
1055 |
cebix |
1.1 |
} |
1056 |
|
|
|
1057 |
|
|
void ClearInterruptFlag(uint32 flag) |
1058 |
|
|
{ |
1059 |
cebix |
1.37 |
LOCK_INTFLAGS; |
1060 |
cebix |
1.1 |
InterruptFlags &= ~flag; |
1061 |
cebix |
1.37 |
UNLOCK_INTFLAGS; |
1062 |
cebix |
1.12 |
} |
1063 |
|
|
#endif |
1064 |
|
|
|
1065 |
|
|
#if !EMULATED_68K |
1066 |
|
|
void TriggerInterrupt(void) |
1067 |
|
|
{ |
1068 |
|
|
#if defined(HAVE_PTHREADS) |
1069 |
|
|
pthread_kill(emul_thread, SIG_IRQ); |
1070 |
|
|
#else |
1071 |
|
|
raise(SIG_IRQ); |
1072 |
|
|
#endif |
1073 |
cebix |
1.22 |
} |
1074 |
|
|
|
1075 |
|
|
void TriggerNMI(void) |
1076 |
|
|
{ |
1077 |
|
|
// not yet supported |
1078 |
cebix |
1.12 |
} |
1079 |
|
|
#endif |
1080 |
|
|
|
1081 |
|
|
|
1082 |
|
|
/* |
1083 |
|
|
* XPRAM watchdog thread (saves XPRAM every minute) |
1084 |
|
|
*/ |
1085 |
|
|
|
1086 |
|
|
static void xpram_watchdog(void) |
1087 |
|
|
{ |
1088 |
cebix |
1.41 |
if (memcmp(last_xpram, XPRAM, XPRAM_SIZE)) { |
1089 |
|
|
memcpy(last_xpram, XPRAM, XPRAM_SIZE); |
1090 |
cebix |
1.12 |
SaveXPRAM(); |
1091 |
|
|
} |
1092 |
|
|
} |
1093 |
|
|
|
1094 |
gbeauche |
1.67 |
#ifdef USE_PTHREADS_SERVICES |
1095 |
cebix |
1.12 |
static void *xpram_func(void *arg) |
1096 |
|
|
{ |
1097 |
|
|
while (!xpram_thread_cancel) { |
1098 |
cebix |
1.16 |
for (int i=0; i<60 && !xpram_thread_cancel; i++) |
1099 |
cebix |
1.29 |
Delay_usec(999999); // Only wait 1 second so we quit promptly when xpram_thread_cancel becomes true |
1100 |
cebix |
1.12 |
xpram_watchdog(); |
1101 |
|
|
} |
1102 |
|
|
return NULL; |
1103 |
cebix |
1.1 |
} |
1104 |
cebix |
1.12 |
#endif |
1105 |
cebix |
1.1 |
|
1106 |
|
|
|
1107 |
|
|
/* |
1108 |
|
|
* 60Hz thread (really 60.15Hz) |
1109 |
|
|
*/ |
1110 |
|
|
|
1111 |
cebix |
1.12 |
static void one_second(void) |
1112 |
|
|
{ |
1113 |
|
|
// Pseudo Mac 1Hz interrupt, update local time |
1114 |
|
|
WriteMacInt32(0x20c, TimerDateTime()); |
1115 |
|
|
|
1116 |
cebix |
1.18 |
SetInterruptFlag(INTFLAG_1HZ); |
1117 |
cebix |
1.14 |
TriggerInterrupt(); |
1118 |
|
|
|
1119 |
gbeauche |
1.67 |
#ifndef USE_PTHREADS_SERVICES |
1120 |
cebix |
1.12 |
static int second_counter = 0; |
1121 |
|
|
if (++second_counter > 60) { |
1122 |
|
|
second_counter = 0; |
1123 |
|
|
xpram_watchdog(); |
1124 |
|
|
} |
1125 |
|
|
#endif |
1126 |
|
|
} |
1127 |
|
|
|
1128 |
cebix |
1.1 |
static void one_tick(...) |
1129 |
|
|
{ |
1130 |
|
|
static int tick_counter = 0; |
1131 |
|
|
if (++tick_counter > 60) { |
1132 |
|
|
tick_counter = 0; |
1133 |
cebix |
1.12 |
one_second(); |
1134 |
cebix |
1.1 |
} |
1135 |
|
|
|
1136 |
gbeauche |
1.67 |
#if !defined(USE_PTHREADS_SERVICES) && !defined(USE_SDL_VIDEO) |
1137 |
cebix |
1.40 |
// No threads available, perform video refresh and networking from here |
1138 |
cebix |
1.12 |
VideoRefresh(); |
1139 |
cebix |
1.40 |
SetInterruptFlag(INTFLAG_ETHER); |
1140 |
cebix |
1.12 |
#endif |
1141 |
|
|
|
1142 |
cebix |
1.1 |
// Trigger 60Hz interrupt |
1143 |
|
|
if (ROMVersion != ROM_VERSION_CLASSIC || HasMacStarted()) { |
1144 |
|
|
SetInterruptFlag(INTFLAG_60HZ); |
1145 |
|
|
TriggerInterrupt(); |
1146 |
|
|
} |
1147 |
|
|
} |
1148 |
|
|
|
1149 |
gbeauche |
1.67 |
#ifdef USE_PTHREADS_SERVICES |
1150 |
cebix |
1.1 |
static void *tick_func(void *arg) |
1151 |
|
|
{ |
1152 |
cebix |
1.39 |
uint64 start = GetTicks_usec(); |
1153 |
|
|
int64 ticks = 0; |
1154 |
cebix |
1.16 |
uint64 next = GetTicks_usec(); |
1155 |
cebix |
1.1 |
while (!tick_thread_cancel) { |
1156 |
cebix |
1.16 |
one_tick(); |
1157 |
|
|
next += 16625; |
1158 |
|
|
int64 delay = next - GetTicks_usec(); |
1159 |
|
|
if (delay > 0) |
1160 |
|
|
Delay_usec(delay); |
1161 |
|
|
else if (delay < -16625) |
1162 |
|
|
next = GetTicks_usec(); |
1163 |
cebix |
1.39 |
ticks++; |
1164 |
cebix |
1.16 |
} |
1165 |
cebix |
1.39 |
uint64 end = GetTicks_usec(); |
1166 |
gbeauche |
1.68 |
D(bug("%lld ticks in %lld usec = %f ticks/sec\n", ticks, end - start, ticks * 1000000.0 / (end - start))); |
1167 |
cebix |
1.16 |
return NULL; |
1168 |
|
|
} |
1169 |
|
|
#endif |
1170 |
cebix |
1.12 |
|
1171 |
|
|
|
1172 |
|
|
#if !EMULATED_68K |
1173 |
|
|
/* |
1174 |
|
|
* Virtual 68k interrupt handler |
1175 |
|
|
*/ |
1176 |
|
|
|
1177 |
|
|
static void sigirq_handler(int sig, int code, struct sigcontext *scp) |
1178 |
|
|
{ |
1179 |
|
|
// Interrupts disabled? Then do nothing |
1180 |
|
|
if (EmulatedSR & 0x0700) |
1181 |
|
|
return; |
1182 |
|
|
|
1183 |
|
|
struct sigstate *state = (struct sigstate *)scp->sc_ap; |
1184 |
|
|
M68kRegisters *regs = (M68kRegisters *)&state->ss_frame; |
1185 |
|
|
|
1186 |
|
|
// Set up interrupt frame on stack |
1187 |
|
|
uint32 a7 = regs->a[7]; |
1188 |
|
|
a7 -= 2; |
1189 |
|
|
WriteMacInt16(a7, 0x64); |
1190 |
|
|
a7 -= 4; |
1191 |
|
|
WriteMacInt32(a7, scp->sc_pc); |
1192 |
|
|
a7 -= 2; |
1193 |
|
|
WriteMacInt16(a7, scp->sc_ps | EmulatedSR); |
1194 |
|
|
scp->sc_sp = regs->a[7] = a7; |
1195 |
|
|
|
1196 |
|
|
// Set interrupt level |
1197 |
|
|
EmulatedSR |= 0x2100; |
1198 |
|
|
|
1199 |
|
|
// Jump to MacOS interrupt handler on return |
1200 |
|
|
scp->sc_pc = ReadMacInt32(0x64); |
1201 |
|
|
} |
1202 |
cebix |
1.1 |
|
1203 |
|
|
|
1204 |
|
|
/* |
1205 |
cebix |
1.12 |
* SIGILL handler, for emulation of privileged instructions and executing |
1206 |
|
|
* A-Trap and EMUL_OP opcodes |
1207 |
cebix |
1.1 |
*/ |
1208 |
|
|
|
1209 |
cebix |
1.12 |
static void sigill_handler(int sig, int code, struct sigcontext *scp) |
1210 |
cebix |
1.1 |
{ |
1211 |
cebix |
1.12 |
struct sigstate *state = (struct sigstate *)scp->sc_ap; |
1212 |
|
|
uint16 *pc = (uint16 *)scp->sc_pc; |
1213 |
|
|
uint16 opcode = *pc; |
1214 |
|
|
M68kRegisters *regs = (M68kRegisters *)&state->ss_frame; |
1215 |
|
|
|
1216 |
|
|
#define INC_PC(n) scp->sc_pc += (n) |
1217 |
|
|
|
1218 |
|
|
#define GET_SR (scp->sc_ps | EmulatedSR) |
1219 |
|
|
|
1220 |
|
|
#define STORE_SR(v) \ |
1221 |
|
|
scp->sc_ps = (v) & 0xff; \ |
1222 |
cebix |
1.24 |
EmulatedSR = (v) & 0xe700; \ |
1223 |
cebix |
1.12 |
if (((v) & 0x0700) == 0 && InterruptFlags) \ |
1224 |
|
|
TriggerInterrupt(); |
1225 |
|
|
|
1226 |
|
|
//printf("opcode %04x at %p, sr %04x, emul_sr %04x\n", opcode, pc, scp->sc_ps, EmulatedSR); |
1227 |
|
|
|
1228 |
|
|
if ((opcode & 0xf000) == 0xa000) { |
1229 |
|
|
|
1230 |
|
|
// A-Line instruction, set up A-Line trap frame on stack |
1231 |
|
|
uint32 a7 = regs->a[7]; |
1232 |
|
|
a7 -= 2; |
1233 |
|
|
WriteMacInt16(a7, 0x28); |
1234 |
|
|
a7 -= 4; |
1235 |
|
|
WriteMacInt32(a7, (uint32)pc); |
1236 |
|
|
a7 -= 2; |
1237 |
|
|
WriteMacInt16(a7, GET_SR); |
1238 |
|
|
scp->sc_sp = regs->a[7] = a7; |
1239 |
|
|
|
1240 |
|
|
// Jump to MacOS A-Line handler on return |
1241 |
|
|
scp->sc_pc = ReadMacInt32(0x28); |
1242 |
|
|
|
1243 |
|
|
} else if ((opcode & 0xff00) == 0x7100) { |
1244 |
|
|
|
1245 |
|
|
// Extended opcode, push registers on user stack |
1246 |
|
|
uint32 a7 = regs->a[7]; |
1247 |
|
|
a7 -= 4; |
1248 |
|
|
WriteMacInt32(a7, (uint32)pc); |
1249 |
|
|
a7 -= 2; |
1250 |
|
|
WriteMacInt16(a7, scp->sc_ps); |
1251 |
|
|
for (int i=7; i>=0; i--) { |
1252 |
|
|
a7 -= 4; |
1253 |
|
|
WriteMacInt32(a7, regs->a[i]); |
1254 |
|
|
} |
1255 |
|
|
for (int i=7; i>=0; i--) { |
1256 |
|
|
a7 -= 4; |
1257 |
|
|
WriteMacInt32(a7, regs->d[i]); |
1258 |
|
|
} |
1259 |
|
|
scp->sc_sp = regs->a[7] = a7; |
1260 |
|
|
|
1261 |
|
|
// Jump to EmulOp trampoline code on return |
1262 |
|
|
scp->sc_pc = (uint32)EmulOpTrampoline; |
1263 |
|
|
|
1264 |
|
|
} else switch (opcode) { // Emulate privileged instructions |
1265 |
|
|
|
1266 |
|
|
case 0x40e7: // move sr,-(sp) |
1267 |
|
|
regs->a[7] -= 2; |
1268 |
|
|
WriteMacInt16(regs->a[7], GET_SR); |
1269 |
|
|
scp->sc_sp = regs->a[7]; |
1270 |
|
|
INC_PC(2); |
1271 |
|
|
break; |
1272 |
|
|
|
1273 |
|
|
case 0x46df: { // move (sp)+,sr |
1274 |
|
|
uint16 sr = ReadMacInt16(regs->a[7]); |
1275 |
|
|
STORE_SR(sr); |
1276 |
|
|
regs->a[7] += 2; |
1277 |
|
|
scp->sc_sp = regs->a[7]; |
1278 |
|
|
INC_PC(2); |
1279 |
|
|
break; |
1280 |
|
|
} |
1281 |
|
|
|
1282 |
|
|
case 0x007c: { // ori #xxxx,sr |
1283 |
|
|
uint16 sr = GET_SR | pc[1]; |
1284 |
|
|
scp->sc_ps = sr & 0xff; // oring bits into the sr can't enable interrupts, so we don't need to call STORE_SR |
1285 |
cebix |
1.24 |
EmulatedSR = sr & 0xe700; |
1286 |
cebix |
1.12 |
INC_PC(4); |
1287 |
|
|
break; |
1288 |
|
|
} |
1289 |
|
|
|
1290 |
|
|
case 0x027c: { // andi #xxxx,sr |
1291 |
|
|
uint16 sr = GET_SR & pc[1]; |
1292 |
|
|
STORE_SR(sr); |
1293 |
|
|
INC_PC(4); |
1294 |
|
|
break; |
1295 |
|
|
} |
1296 |
|
|
|
1297 |
|
|
case 0x46fc: // move #xxxx,sr |
1298 |
|
|
STORE_SR(pc[1]); |
1299 |
|
|
INC_PC(4); |
1300 |
|
|
break; |
1301 |
|
|
|
1302 |
|
|
case 0x46ef: { // move (xxxx,sp),sr |
1303 |
|
|
uint16 sr = ReadMacInt16(regs->a[7] + (int32)(int16)pc[1]); |
1304 |
|
|
STORE_SR(sr); |
1305 |
|
|
INC_PC(4); |
1306 |
|
|
break; |
1307 |
|
|
} |
1308 |
|
|
|
1309 |
|
|
case 0x46d8: // move (a0)+,sr |
1310 |
|
|
case 0x46d9: { // move (a1)+,sr |
1311 |
|
|
uint16 sr = ReadMacInt16(regs->a[opcode & 7]); |
1312 |
|
|
STORE_SR(sr); |
1313 |
|
|
regs->a[opcode & 7] += 2; |
1314 |
|
|
INC_PC(2); |
1315 |
|
|
break; |
1316 |
|
|
} |
1317 |
cebix |
1.1 |
|
1318 |
cebix |
1.12 |
case 0x40f8: // move sr,xxxx.w |
1319 |
|
|
WriteMacInt16(pc[1], GET_SR); |
1320 |
|
|
INC_PC(4); |
1321 |
|
|
break; |
1322 |
|
|
|
1323 |
|
|
case 0x40d0: // move sr,(a0) |
1324 |
|
|
case 0x40d1: // move sr,(a1) |
1325 |
|
|
case 0x40d2: // move sr,(a2) |
1326 |
|
|
case 0x40d3: // move sr,(a3) |
1327 |
|
|
case 0x40d4: // move sr,(a4) |
1328 |
|
|
case 0x40d5: // move sr,(a5) |
1329 |
|
|
case 0x40d6: // move sr,(a6) |
1330 |
|
|
case 0x40d7: // move sr,(sp) |
1331 |
|
|
WriteMacInt16(regs->a[opcode & 7], GET_SR); |
1332 |
|
|
INC_PC(2); |
1333 |
|
|
break; |
1334 |
|
|
|
1335 |
|
|
case 0x40c0: // move sr,d0 |
1336 |
|
|
case 0x40c1: // move sr,d1 |
1337 |
|
|
case 0x40c2: // move sr,d2 |
1338 |
|
|
case 0x40c3: // move sr,d3 |
1339 |
|
|
case 0x40c4: // move sr,d4 |
1340 |
|
|
case 0x40c5: // move sr,d5 |
1341 |
|
|
case 0x40c6: // move sr,d6 |
1342 |
|
|
case 0x40c7: // move sr,d7 |
1343 |
|
|
regs->d[opcode & 7] = GET_SR; |
1344 |
|
|
INC_PC(2); |
1345 |
|
|
break; |
1346 |
|
|
|
1347 |
|
|
case 0x46c0: // move d0,sr |
1348 |
|
|
case 0x46c1: // move d1,sr |
1349 |
|
|
case 0x46c2: // move d2,sr |
1350 |
|
|
case 0x46c3: // move d3,sr |
1351 |
|
|
case 0x46c4: // move d4,sr |
1352 |
|
|
case 0x46c5: // move d5,sr |
1353 |
|
|
case 0x46c6: // move d6,sr |
1354 |
|
|
case 0x46c7: { // move d7,sr |
1355 |
|
|
uint16 sr = regs->d[opcode & 7]; |
1356 |
|
|
STORE_SR(sr); |
1357 |
|
|
INC_PC(2); |
1358 |
|
|
break; |
1359 |
cebix |
1.1 |
} |
1360 |
cebix |
1.12 |
|
1361 |
|
|
case 0xf327: // fsave -(sp) |
1362 |
cebix |
1.35 |
regs->a[7] -= 4; |
1363 |
|
|
WriteMacInt32(regs->a[7], 0x41000000); // Idle frame |
1364 |
cebix |
1.24 |
scp->sc_sp = regs->a[7]; |
1365 |
|
|
INC_PC(2); |
1366 |
|
|
break; |
1367 |
cebix |
1.12 |
|
1368 |
|
|
case 0xf35f: // frestore (sp)+ |
1369 |
cebix |
1.35 |
regs->a[7] += 4; |
1370 |
cebix |
1.24 |
scp->sc_sp = regs->a[7]; |
1371 |
|
|
INC_PC(2); |
1372 |
|
|
break; |
1373 |
cebix |
1.12 |
|
1374 |
cebix |
1.24 |
case 0x4e73: { // rte |
1375 |
cebix |
1.12 |
uint32 a7 = regs->a[7]; |
1376 |
|
|
uint16 sr = ReadMacInt16(a7); |
1377 |
|
|
a7 += 2; |
1378 |
|
|
scp->sc_ps = sr & 0xff; |
1379 |
cebix |
1.24 |
EmulatedSR = sr & 0xe700; |
1380 |
cebix |
1.12 |
scp->sc_pc = ReadMacInt32(a7); |
1381 |
cebix |
1.24 |
a7 += 4; |
1382 |
|
|
uint16 format = ReadMacInt16(a7) >> 12; |
1383 |
|
|
a7 += 2; |
1384 |
|
|
static const int frame_adj[16] = { |
1385 |
|
|
0, 0, 4, 4, 8, 0, 0, 52, 50, 12, 24, 84, 16, 0, 0, 0 |
1386 |
|
|
}; |
1387 |
|
|
scp->sc_sp = regs->a[7] = a7 + frame_adj[format]; |
1388 |
cebix |
1.12 |
break; |
1389 |
cebix |
1.1 |
} |
1390 |
cebix |
1.12 |
|
1391 |
|
|
case 0x4e7a: // movec cr,x |
1392 |
|
|
switch (pc[1]) { |
1393 |
|
|
case 0x0002: // movec cacr,d0 |
1394 |
|
|
regs->d[0] = 0x3111; |
1395 |
|
|
break; |
1396 |
|
|
case 0x1002: // movec cacr,d1 |
1397 |
|
|
regs->d[1] = 0x3111; |
1398 |
|
|
break; |
1399 |
|
|
case 0x0003: // movec tc,d0 |
1400 |
cebix |
1.24 |
case 0x0004: // movec itt0,d0 |
1401 |
|
|
case 0x0005: // movec itt1,d0 |
1402 |
|
|
case 0x0006: // movec dtt0,d0 |
1403 |
|
|
case 0x0007: // movec dtt1,d0 |
1404 |
|
|
case 0x0806: // movec urp,d0 |
1405 |
|
|
case 0x0807: // movec srp,d0 |
1406 |
cebix |
1.12 |
regs->d[0] = 0; |
1407 |
|
|
break; |
1408 |
cebix |
1.24 |
case 0x1000: // movec sfc,d1 |
1409 |
|
|
case 0x1001: // movec dfc,d1 |
1410 |
cebix |
1.12 |
case 0x1003: // movec tc,d1 |
1411 |
cebix |
1.24 |
case 0x1801: // movec vbr,d1 |
1412 |
cebix |
1.12 |
regs->d[1] = 0; |
1413 |
|
|
break; |
1414 |
cebix |
1.24 |
case 0x8801: // movec vbr,a0 |
1415 |
|
|
regs->a[0] = 0; |
1416 |
|
|
break; |
1417 |
|
|
case 0x9801: // movec vbr,a1 |
1418 |
|
|
regs->a[1] = 0; |
1419 |
|
|
break; |
1420 |
cebix |
1.12 |
default: |
1421 |
|
|
goto ill; |
1422 |
|
|
} |
1423 |
|
|
INC_PC(4); |
1424 |
|
|
break; |
1425 |
|
|
|
1426 |
|
|
case 0x4e7b: // movec x,cr |
1427 |
|
|
switch (pc[1]) { |
1428 |
cebix |
1.24 |
case 0x1000: // movec d1,sfc |
1429 |
|
|
case 0x1001: // movec d1,dfc |
1430 |
cebix |
1.12 |
case 0x0801: // movec d0,vbr |
1431 |
cebix |
1.24 |
case 0x1801: // movec d1,vbr |
1432 |
cebix |
1.12 |
break; |
1433 |
|
|
case 0x0002: // movec d0,cacr |
1434 |
|
|
case 0x1002: // movec d1,cacr |
1435 |
|
|
FlushCodeCache(NULL, 0); |
1436 |
|
|
break; |
1437 |
|
|
default: |
1438 |
|
|
goto ill; |
1439 |
|
|
} |
1440 |
|
|
INC_PC(4); |
1441 |
|
|
break; |
1442 |
|
|
|
1443 |
|
|
case 0xf478: // cpusha dc |
1444 |
|
|
case 0xf4f8: // cpusha dc/ic |
1445 |
|
|
FlushCodeCache(NULL, 0); |
1446 |
|
|
INC_PC(2); |
1447 |
|
|
break; |
1448 |
|
|
|
1449 |
|
|
default: |
1450 |
|
|
ill: printf("SIGILL num %d, code %d\n", sig, code); |
1451 |
|
|
printf(" context %p:\n", scp); |
1452 |
|
|
printf(" onstack %08x\n", scp->sc_onstack); |
1453 |
|
|
printf(" sp %08x\n", scp->sc_sp); |
1454 |
|
|
printf(" fp %08x\n", scp->sc_fp); |
1455 |
|
|
printf(" pc %08x\n", scp->sc_pc); |
1456 |
|
|
printf(" opcode %04x\n", opcode); |
1457 |
|
|
printf(" sr %08x\n", scp->sc_ps); |
1458 |
|
|
printf(" state %p:\n", state); |
1459 |
|
|
printf(" flags %d\n", state->ss_flags); |
1460 |
|
|
for (int i=0; i<8; i++) |
1461 |
|
|
printf(" d%d %08x\n", i, state->ss_frame.f_regs[i]); |
1462 |
|
|
for (int i=0; i<8; i++) |
1463 |
|
|
printf(" a%d %08x\n", i, state->ss_frame.f_regs[i+8]); |
1464 |
|
|
|
1465 |
cebix |
1.37 |
VideoQuitFullScreen(); |
1466 |
cebix |
1.12 |
#ifdef ENABLE_MON |
1467 |
cebix |
1.21 |
char *arg[4] = {"mon", "-m", "-r", NULL}; |
1468 |
|
|
mon(3, arg); |
1469 |
cebix |
1.12 |
#endif |
1470 |
|
|
QuitEmulator(); |
1471 |
|
|
break; |
1472 |
cebix |
1.1 |
} |
1473 |
|
|
} |
1474 |
cebix |
1.12 |
#endif |
1475 |
cebix |
1.1 |
|
1476 |
|
|
|
1477 |
|
|
/* |
1478 |
|
|
* Display alert |
1479 |
|
|
*/ |
1480 |
|
|
|
1481 |
cebix |
1.12 |
#ifdef ENABLE_GTK |
1482 |
cebix |
1.1 |
static void dl_destroyed(void) |
1483 |
|
|
{ |
1484 |
|
|
gtk_main_quit(); |
1485 |
|
|
} |
1486 |
|
|
|
1487 |
|
|
static void dl_quit(GtkWidget *dialog) |
1488 |
|
|
{ |
1489 |
|
|
gtk_widget_destroy(dialog); |
1490 |
|
|
} |
1491 |
|
|
|
1492 |
|
|
void display_alert(int title_id, int prefix_id, int button_id, const char *text) |
1493 |
|
|
{ |
1494 |
|
|
char str[256]; |
1495 |
|
|
sprintf(str, GetString(prefix_id), text); |
1496 |
|
|
|
1497 |
|
|
GtkWidget *dialog = gtk_dialog_new(); |
1498 |
|
|
gtk_window_set_title(GTK_WINDOW(dialog), GetString(title_id)); |
1499 |
|
|
gtk_container_border_width(GTK_CONTAINER(dialog), 5); |
1500 |
|
|
gtk_widget_set_uposition(GTK_WIDGET(dialog), 100, 150); |
1501 |
|
|
gtk_signal_connect(GTK_OBJECT(dialog), "destroy", GTK_SIGNAL_FUNC(dl_destroyed), NULL); |
1502 |
|
|
|
1503 |
|
|
GtkWidget *label = gtk_label_new(str); |
1504 |
|
|
gtk_widget_show(label); |
1505 |
|
|
gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), label, TRUE, TRUE, 0); |
1506 |
|
|
|
1507 |
|
|
GtkWidget *button = gtk_button_new_with_label(GetString(button_id)); |
1508 |
|
|
gtk_widget_show(button); |
1509 |
|
|
gtk_signal_connect_object(GTK_OBJECT(button), "clicked", GTK_SIGNAL_FUNC(dl_quit), GTK_OBJECT(dialog)); |
1510 |
|
|
gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->action_area), button, FALSE, FALSE, 0); |
1511 |
|
|
GTK_WIDGET_SET_FLAGS(button, GTK_CAN_DEFAULT); |
1512 |
|
|
gtk_widget_grab_default(button); |
1513 |
|
|
gtk_widget_show(dialog); |
1514 |
|
|
|
1515 |
|
|
gtk_main(); |
1516 |
|
|
} |
1517 |
|
|
#endif |
1518 |
|
|
|
1519 |
|
|
|
1520 |
|
|
/* |
1521 |
|
|
* Display error alert |
1522 |
|
|
*/ |
1523 |
|
|
|
1524 |
|
|
void ErrorAlert(const char *text) |
1525 |
|
|
{ |
1526 |
gbeauche |
1.59 |
#if defined(ENABLE_GTK) && !defined(USE_SDL_VIDEO) |
1527 |
cebix |
1.1 |
if (PrefsFindBool("nogui") || x_display == NULL) { |
1528 |
|
|
printf(GetString(STR_SHELL_ERROR_PREFIX), text); |
1529 |
|
|
return; |
1530 |
|
|
} |
1531 |
|
|
VideoQuitFullScreen(); |
1532 |
|
|
display_alert(STR_ERROR_ALERT_TITLE, STR_GUI_ERROR_PREFIX, STR_QUIT_BUTTON, text); |
1533 |
|
|
#else |
1534 |
|
|
printf(GetString(STR_SHELL_ERROR_PREFIX), text); |
1535 |
|
|
#endif |
1536 |
|
|
} |
1537 |
|
|
|
1538 |
|
|
|
1539 |
|
|
/* |
1540 |
|
|
* Display warning alert |
1541 |
|
|
*/ |
1542 |
|
|
|
1543 |
|
|
void WarningAlert(const char *text) |
1544 |
|
|
{ |
1545 |
gbeauche |
1.59 |
#if defined(ENABLE_GTK) && !defined(USE_SDL_VIDEO) |
1546 |
cebix |
1.1 |
if (PrefsFindBool("nogui") || x_display == NULL) { |
1547 |
|
|
printf(GetString(STR_SHELL_WARNING_PREFIX), text); |
1548 |
|
|
return; |
1549 |
|
|
} |
1550 |
|
|
display_alert(STR_WARNING_ALERT_TITLE, STR_GUI_WARNING_PREFIX, STR_OK_BUTTON, text); |
1551 |
|
|
#else |
1552 |
|
|
printf(GetString(STR_SHELL_WARNING_PREFIX), text); |
1553 |
|
|
#endif |
1554 |
|
|
} |
1555 |
|
|
|
1556 |
|
|
|
1557 |
|
|
/* |
1558 |
|
|
* Display choice alert |
1559 |
|
|
*/ |
1560 |
|
|
|
1561 |
|
|
bool ChoiceAlert(const char *text, const char *pos, const char *neg) |
1562 |
|
|
{ |
1563 |
|
|
printf(GetString(STR_SHELL_WARNING_PREFIX), text); |
1564 |
|
|
return false; //!! |
1565 |
|
|
} |