1617 lines
38 KiB
C++
1617 lines
38 KiB
C++
/*
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* main_unix.cpp - Startup code for Unix
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*
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* Basilisk II (C) Christian Bauer
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*
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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>
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#include <errno.h>
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#include <sstream>
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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>
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#endif
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#ifdef HAVE_PTHREADS
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# include <pthread.h>
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#endif
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#if REAL_ADDRESSING || DIRECT_ADDRESSING
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# include <sys/mman.h>
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#endif
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#if !EMULATED_68K && defined(__NetBSD__)
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# include <m68k/sync_icache.h>
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# include <m68k/frame.h>
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# include <sys/param.h>
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# include <sys/sysctl.h>
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struct sigstate {
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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
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#ifdef ENABLE_GTK
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# include <gtk/gtk.h>
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# include <gdk/gdk.h>
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# ifdef HAVE_GNOMEUI
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# include <gnome.h>
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# endif
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#endif
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#ifdef ENABLE_XF86_DGA
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# include <X11/Xutil.h>
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# include <X11/extensions/Xxf86dga.h>
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#endif
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#include <string>
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using std::string;
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#include "cpu_emulation.h"
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#include "sys.h"
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#include "rom_patches.h"
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#include "xpram.h"
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#include "timer.h"
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#include "video.h"
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#include "emul_op.h"
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#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"
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#include "vm_alloc.h"
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#include "sigsegv.h"
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#include "rpc.h"
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#if USE_JIT
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extern void flush_icache_range(uint8 *start, uint32 size); // from compemu_support.cpp
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#endif
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#ifdef ENABLE_MON
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# include "mon.h"
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#endif
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#define DEBUG 0
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#include "debug.h"
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// Constants
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const char ROM_FILE_NAME[] = "ROM";
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#if !EMULATED_68K
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const int SIG_STACK_SIZE = SIGSTKSZ; // Size of signal stack
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#endif
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const int SCRATCH_MEM_SIZE = 0x10000; // Size of scratch memory area
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#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
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#endif
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// CPU and FPU type, addressing mode
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int CPUType;
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bool CPUIs68060;
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int FPUType;
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bool TwentyFourBitAddressing;
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// Global variables
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#ifndef USE_SDL_VIDEO
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extern char *x_display_name; // X11 display name
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extern Display *x_display; // X11 display handle
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#ifdef X11_LOCK_TYPE
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X11_LOCK_TYPE x_display_lock = X11_LOCK_INIT; // X11 display lock
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#endif
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#endif
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static uint8 last_xpram[XPRAM_SIZE]; // Buffer for monitoring XPRAM changes
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#ifdef HAVE_PTHREADS
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#if !EMULATED_68K
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static pthread_t emul_thread; // Handle of MacOS emulation thread (main thread)
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#endif
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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
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static bool tick_thread_active = false; // Flag: 60Hz thread installed
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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
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static pthread_mutex_t intflag_lock = PTHREAD_MUTEX_INITIALIZER; // Mutex to protect InterruptFlags
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#define LOCK_INTFLAGS pthread_mutex_lock(&intflag_lock)
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#define UNLOCK_INTFLAGS pthread_mutex_unlock(&intflag_lock)
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#else
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#define LOCK_INTFLAGS
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#define UNLOCK_INTFLAGS
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#endif
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#if !EMULATED_68K
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#define SIG_IRQ SIGUSR1
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static struct sigaction sigirq_sa; // Virtual 68k interrupt signal
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static struct sigaction sigill_sa; // Illegal instruction
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static void *sig_stack = NULL; // Stack for signal handlers
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uint16 EmulatedSR; // Emulated bits of SR (supervisor bit and interrupt mask)
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#endif
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#if USE_SCRATCHMEM_SUBTERFUGE
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uint8 *ScratchMem = NULL; // Scratch memory for Mac ROM writes
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#endif
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#if !defined(HAVE_PTHREADS)
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static struct sigaction timer_sa; // sigaction used for timer
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#if defined(HAVE_TIMER_CREATE) && defined(_POSIX_REALTIME_SIGNALS)
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#define SIG_TIMER SIGRTMIN
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static timer_t timer; // 60Hz timer
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#endif
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#endif // !HAVE_PTHREADS
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#ifdef ENABLE_MON
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static struct sigaction sigint_sa; // sigaction for SIGINT handler
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static void sigint_handler(...);
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#endif
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#if REAL_ADDRESSING
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static bool lm_area_mapped = false; // Flag: Low Memory area mmap()ped
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#endif
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static rpc_connection_t *gui_connection = NULL; // RPC connection to the GUI
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static const char *gui_connection_path = NULL; // GUI connection identifier
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// Prototypes
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static void *xpram_func(void *arg);
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static void *tick_func(void *arg);
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static void one_tick(...);
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#if !EMULATED_68K
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static void sigirq_handler(int sig, int code, struct sigcontext *scp);
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static void sigill_handler(int sig, int code, struct sigcontext *scp);
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extern "C" void EmulOpTrampoline(void);
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#endif
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/*
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* Ersatz functions
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*/
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extern "C" {
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#ifndef HAVE_STRDUP
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char *strdup(const char *s)
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{
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char *n = (char *)malloc(strlen(s) + 1);
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strcpy(n, s);
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return n;
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}
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#endif
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}
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/*
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* Helpers to map memory that can be accessed from the Mac side
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*/
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// NOTE: VM_MAP_32BIT is only used when compiling a 64-bit JIT on specific platforms
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void *vm_acquire_mac(size_t size)
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{
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return vm_acquire(size, VM_MAP_DEFAULT | VM_MAP_32BIT);
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}
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static int vm_acquire_mac_fixed(void *addr, size_t size)
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{
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return vm_acquire_fixed(addr, size, VM_MAP_DEFAULT | VM_MAP_32BIT);
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}
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/*
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* SIGSEGV handler
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*/
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static sigsegv_return_t sigsegv_handler(sigsegv_info_t *sip)
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{
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const uintptr fault_address = (uintptr)sigsegv_get_fault_address(sip);
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#if ENABLE_VOSF
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// Handle screen fault
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extern bool Screen_fault_handler(sigsegv_info_t *sip);
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if (Screen_fault_handler(sip))
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return SIGSEGV_RETURN_SUCCESS;
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#endif
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#ifdef HAVE_SIGSEGV_SKIP_INSTRUCTION
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// Ignore writes to ROM
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if (((uintptr)fault_address - (uintptr)ROMBaseHost) < ROMSize)
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return SIGSEGV_RETURN_SKIP_INSTRUCTION;
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// Ignore all other faults, if requested
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if (PrefsFindBool("ignoresegv"))
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return SIGSEGV_RETURN_SKIP_INSTRUCTION;
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#endif
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return SIGSEGV_RETURN_FAILURE;
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}
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/*
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* Dump state when everything went wrong after a SEGV
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*/
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static void sigsegv_dump_state(sigsegv_info_t *sip)
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{
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const sigsegv_address_t fault_address = sigsegv_get_fault_address(sip);
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const sigsegv_address_t fault_instruction = sigsegv_get_fault_instruction_address(sip);
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fprintf(stderr, "Caught SIGSEGV at address %p", fault_address);
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if (fault_instruction != SIGSEGV_INVALID_ADDRESS)
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fprintf(stderr, " [IP=%p]", fault_instruction);
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fprintf(stderr, "\n");
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#if EMULATED_68K
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uaecptr nextpc;
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extern void m68k_dumpstate(uaecptr *nextpc);
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m68k_dumpstate(&nextpc);
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#endif
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#if USE_JIT && JIT_DEBUG
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extern void compiler_dumpstate(void);
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compiler_dumpstate();
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#endif
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VideoQuitFullScreen();
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#ifdef ENABLE_MON
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const char *arg[4] = {"mon", "-m", "-r", NULL};
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mon(3, arg);
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#endif
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QuitEmulator();
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}
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/*
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* Update virtual clock and trigger interrupts if necessary
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*/
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#ifdef USE_CPU_EMUL_SERVICES
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static uint64 n_check_ticks = 0;
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static uint64 emulated_ticks_start = 0;
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static uint64 emulated_ticks_count = 0;
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static int64 emulated_ticks_current = 0;
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static int32 emulated_ticks_quantum = 1000;
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int32 emulated_ticks = emulated_ticks_quantum;
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void cpu_do_check_ticks(void)
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{
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#if DEBUG
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n_check_ticks++;
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#endif
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uint64 now;
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static uint64 next = 0;
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if (next == 0)
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next = emulated_ticks_start = GetTicks_usec();
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// Update total instructions count
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if (emulated_ticks <= 0) {
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emulated_ticks_current += (emulated_ticks_quantum - emulated_ticks);
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// XXX: can you really have a machine fast enough to overflow
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// a 63-bit m68k instruction counter within 16 ms?
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if (emulated_ticks_current < 0) {
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printf("WARNING: Overflowed 63-bit m68k instruction counter in less than 16 ms!\n");
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goto recalibrate_quantum;
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}
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}
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// Check for interrupt opportunity
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now = GetTicks_usec();
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if (next < now) {
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one_tick();
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do {
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next += 16625;
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} while (next < now);
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emulated_ticks_count++;
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// Recalibrate 1000 Hz quantum every 10 ticks
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static uint64 last = 0;
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if (last == 0)
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last = now;
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else if (now - last > 166250) {
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recalibrate_quantum:
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emulated_ticks_quantum = ((uint64)emulated_ticks_current * 1000) / (now - last);
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emulated_ticks_current = 0;
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last = now;
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}
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}
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// Update countdown
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if (emulated_ticks <= 0)
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emulated_ticks += emulated_ticks_quantum;
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}
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#endif
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/*
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* Main program
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*/
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static void usage(const char *prg_name)
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{
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printf(
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"Usage: %s [OPTION...]\n"
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"\nUnix options:\n"
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" --config FILE\n read/write configuration from/to FILE\n"
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" --display STRING\n X display to use\n"
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" --break ADDRESS\n set ROM breakpoint in hexadecimal\n"
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" --loadbreak FILE\n load breakpoint from FILE\n"
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" --rominfo\n dump ROM information\n", prg_name
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);
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LoadPrefs(NULL); // read the prefs file so PrefsPrintUsage() will print the correct default values
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PrefsPrintUsage();
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exit(0);
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}
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int main(int argc, char **argv)
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{
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const char *vmdir = NULL;
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char str[256];
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// Initialize variables
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RAMBaseHost = NULL;
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ROMBaseHost = NULL;
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srand(time(NULL));
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tzset();
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// Print some info
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printf(GetString(STR_ABOUT_TEXT1), VERSION_MAJOR, VERSION_MINOR);
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printf(" %s\n", GetString(STR_ABOUT_TEXT2));
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// Parse command line arguments
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for (int i=1; i<argc; i++) {
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if (strcmp(argv[i], "--help") == 0) {
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usage(argv[0]);
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#ifndef USE_SDL_VIDEO
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} else if (strcmp(argv[i], "--display") == 0) {
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i++; // don't remove the argument, gtk_init() needs it too
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if (i < argc)
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x_display_name = strdup(argv[i]);
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#endif
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} else if (strcmp(argv[i], "--gui-connection") == 0) {
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argv[i++] = NULL;
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if (i < argc) {
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gui_connection_path = argv[i];
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argv[i] = NULL;
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}
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} else if (strcmp(argv[i], "--break") == 0) {
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argv[i++] = NULL;
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if (i < argc) {
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std::stringstream ss;
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ss << std::hex << argv[i];
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ss >> ROMBreakpoint;
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argv[i] = NULL;
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}
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#ifdef ENABLE_MON
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} else if (strcmp(argv[i], "--loadbreak") == 0) {
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argv[i++] = NULL;
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if (i < argc)
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mon_load_break_point(argv[i]);
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#endif
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} else if (strcmp(argv[i], "--config") == 0) {
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argv[i++] = NULL;
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if (i < argc) {
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extern string UserPrefsPath; // from prefs_unix.cpp
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UserPrefsPath = argv[i];
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argv[i] = NULL;
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}
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} else if (strcmp(argv[i], "--rominfo") == 0) {
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argv[i] = NULL;
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PrintROMInfo = true;
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}
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}
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// Remove processed arguments
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for (int i=1; i<argc; i++) {
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int k;
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for (k=i; k<argc; k++)
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if (argv[k] != NULL)
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break;
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if (k > i) {
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k -= i;
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for (int j=i+k; j<argc; j++)
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argv[j-k] = argv[j];
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argc -= k;
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}
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}
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// Connect to the external GUI
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if (gui_connection_path) {
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if ((gui_connection = rpc_init_client(gui_connection_path)) == NULL) {
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fprintf(stderr, "Failed to initialize RPC client connection to the GUI\n");
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return 1;
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}
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}
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#ifdef ENABLE_GTK
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if (!gui_connection) {
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#ifdef HAVE_GNOMEUI
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// Init GNOME/GTK
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char version[16];
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sprintf(version, "%d.%d", VERSION_MAJOR, VERSION_MINOR);
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gnome_init("Basilisk II", version, argc, argv);
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#else
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// Init GTK
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gtk_set_locale();
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gtk_init(&argc, &argv);
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#endif
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}
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#endif
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// Read preferences
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PrefsInit(vmdir, argc, argv);
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// Any command line arguments left?
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for (int i=1; i<argc; i++) {
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if (argv[i][0] == '-') {
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fprintf(stderr, "Unrecognized option '%s'\n", argv[i]);
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usage(argv[0]);
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}
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}
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#ifndef USE_SDL_VIDEO
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// Open display
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x_display = XOpenDisplay(x_display_name);
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if (x_display == NULL) {
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char str[256];
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sprintf(str, GetString(STR_NO_XSERVER_ERR), XDisplayName(x_display_name));
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ErrorAlert(str);
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QuitEmulator();
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}
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#if defined(ENABLE_XF86_DGA) && !defined(ENABLE_MON)
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// Fork out, so we can return from fullscreen mode when things get ugly
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XF86DGAForkApp(DefaultScreen(x_display));
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#endif
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#endif
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#ifdef USE_SDL
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// Initialize SDL system
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int sdl_flags = 0;
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#ifdef USE_SDL_VIDEO
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sdl_flags |= SDL_INIT_VIDEO;
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#endif
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#ifdef USE_SDL_AUDIO
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sdl_flags |= SDL_INIT_AUDIO;
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#endif
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assert(sdl_flags != 0);
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if (SDL_Init(sdl_flags) == -1) {
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char str[256];
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sprintf(str, "Could not initialize SDL: %s.\n", SDL_GetError());
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ErrorAlert(str);
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QuitEmulator();
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}
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atexit(SDL_Quit);
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#endif
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// Init system routines
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SysInit();
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// Show preferences editor
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if (!gui_connection && !PrefsFindBool("nogui"))
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if (!PrefsEditor())
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QuitEmulator();
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// Install the handler for SIGSEGV
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if (!sigsegv_install_handler(sigsegv_handler)) {
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sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGSEGV", strerror(errno));
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ErrorAlert(str);
|
|
QuitEmulator();
|
|
}
|
|
|
|
// Register dump state function when we got mad after a segfault
|
|
sigsegv_set_dump_state(sigsegv_dump_state);
|
|
|
|
// Read RAM size
|
|
RAMSize = PrefsFindInt32("ramsize") & 0xfff00000; // Round down to 1MB boundary
|
|
if (RAMSize < 1024*1024) {
|
|
WarningAlert(GetString(STR_SMALL_RAM_WARN));
|
|
RAMSize = 1024*1024;
|
|
}
|
|
if (RAMSize > 1023*1024*1024) // Cap to 1023MB (APD crashes at 1GB)
|
|
RAMSize = 1023*1024*1024;
|
|
|
|
#if REAL_ADDRESSING || DIRECT_ADDRESSING
|
|
RAMSize = RAMSize & -getpagesize(); // Round down to page boundary
|
|
#endif
|
|
|
|
// Initialize VM system
|
|
vm_init();
|
|
|
|
#if REAL_ADDRESSING
|
|
// Flag: RAM and ROM are contigously allocated from address 0
|
|
bool memory_mapped_from_zero = false;
|
|
|
|
// Make sure to map RAM & ROM at address 0 only on platforms that
|
|
// supports linker scripts to relocate the Basilisk II executable
|
|
// above 0x70000000
|
|
#if HAVE_LINKER_SCRIPT
|
|
const bool can_map_all_memory = true;
|
|
#else
|
|
const bool can_map_all_memory = false;
|
|
#endif
|
|
|
|
// Try to allocate all memory from 0x0000, if it is not known to crash
|
|
if (can_map_all_memory && (vm_acquire_mac_fixed(0, RAMSize + 0x100000) == 0)) {
|
|
D(bug("Could allocate RAM and ROM from 0x0000\n"));
|
|
memory_mapped_from_zero = true;
|
|
}
|
|
|
|
#ifndef PAGEZERO_HACK
|
|
// Otherwise, just create the Low Memory area (0x0000..0x2000)
|
|
else if (vm_acquire_mac_fixed(0, 0x2000) == 0) {
|
|
D(bug("Could allocate the Low Memory globals\n"));
|
|
lm_area_mapped = true;
|
|
}
|
|
|
|
// Exit on failure
|
|
else {
|
|
sprintf(str, GetString(STR_LOW_MEM_MMAP_ERR), strerror(errno));
|
|
ErrorAlert(str);
|
|
QuitEmulator();
|
|
}
|
|
#endif
|
|
#endif /* REAL_ADDRESSING */
|
|
|
|
// Create areas for Mac RAM and ROM
|
|
#if REAL_ADDRESSING
|
|
if (memory_mapped_from_zero) {
|
|
RAMBaseHost = (uint8 *)0;
|
|
ROMBaseHost = RAMBaseHost + RAMSize;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
uint8 *ram_rom_area = (uint8 *)vm_acquire_mac(RAMSize + 0x100000);
|
|
if (ram_rom_area == VM_MAP_FAILED) {
|
|
ErrorAlert(STR_NO_MEM_ERR);
|
|
QuitEmulator();
|
|
}
|
|
RAMBaseHost = ram_rom_area;
|
|
ROMBaseHost = RAMBaseHost + RAMSize;
|
|
}
|
|
|
|
#if USE_SCRATCHMEM_SUBTERFUGE
|
|
// Allocate scratch memory
|
|
ScratchMem = (uint8 *)vm_acquire_mac(SCRATCH_MEM_SIZE);
|
|
if (ScratchMem == VM_MAP_FAILED) {
|
|
ErrorAlert(STR_NO_MEM_ERR);
|
|
QuitEmulator();
|
|
}
|
|
ScratchMem += SCRATCH_MEM_SIZE/2; // ScratchMem points to middle of block
|
|
#endif
|
|
|
|
#if DIRECT_ADDRESSING
|
|
// RAMBaseMac shall always be zero
|
|
MEMBaseDiff = (uintptr)RAMBaseHost;
|
|
RAMBaseMac = 0;
|
|
ROMBaseMac = Host2MacAddr(ROMBaseHost);
|
|
#endif
|
|
#if REAL_ADDRESSING
|
|
RAMBaseMac = Host2MacAddr(RAMBaseHost);
|
|
ROMBaseMac = Host2MacAddr(ROMBaseHost);
|
|
#endif
|
|
D(bug("Mac RAM starts at %p (%08x)\n", RAMBaseHost, RAMBaseMac));
|
|
D(bug("Mac ROM starts at %p (%08x)\n", ROMBaseHost, ROMBaseMac));
|
|
|
|
// Get rom file path from preferences
|
|
const char *rom_path = PrefsFindString("rom");
|
|
|
|
// Load Mac ROM
|
|
int rom_fd = open(rom_path ? rom_path : ROM_FILE_NAME, O_RDONLY);
|
|
if (rom_fd < 0) {
|
|
ErrorAlert(STR_NO_ROM_FILE_ERR);
|
|
QuitEmulator();
|
|
}
|
|
printf("%s", GetString(STR_READING_ROM_FILE));
|
|
ROMSize = lseek(rom_fd, 0, SEEK_END);
|
|
if (ROMSize != 64*1024 && ROMSize != 128*1024 && ROMSize != 256*1024 && ROMSize != 512*1024 && ROMSize != 1024*1024) {
|
|
ErrorAlert(STR_ROM_SIZE_ERR);
|
|
close(rom_fd);
|
|
QuitEmulator();
|
|
}
|
|
lseek(rom_fd, 0, SEEK_SET);
|
|
if (read(rom_fd, ROMBaseHost, ROMSize) != (ssize_t)ROMSize) {
|
|
ErrorAlert(STR_ROM_FILE_READ_ERR);
|
|
close(rom_fd);
|
|
QuitEmulator();
|
|
}
|
|
|
|
#if !EMULATED_68K
|
|
// Get CPU model
|
|
int mib[2] = {CTL_HW, HW_MODEL};
|
|
char *model;
|
|
size_t model_len;
|
|
sysctl(mib, 2, NULL, &model_len, NULL, 0);
|
|
model = (char *)malloc(model_len);
|
|
sysctl(mib, 2, model, &model_len, NULL, 0);
|
|
D(bug("Model: %s\n", model));
|
|
|
|
// Set CPU and FPU type
|
|
CPUIs68060 = false;
|
|
if (strstr(model, "020"))
|
|
CPUType = 2;
|
|
else if (strstr(model, "030"))
|
|
CPUType = 3;
|
|
else if (strstr(model, "040"))
|
|
CPUType = 4;
|
|
else if (strstr(model, "060")) {
|
|
CPUType = 4;
|
|
CPUIs68060 = true;
|
|
} else {
|
|
printf("WARNING: Cannot detect CPU type, assuming 68020\n");
|
|
CPUType = 2;
|
|
}
|
|
FPUType = 1; // NetBSD has an FPU emulation, so the FPU ought to be available at all times
|
|
TwentyFourBitAddressing = false;
|
|
#endif
|
|
|
|
// Initialize everything
|
|
if (!InitAll(vmdir))
|
|
QuitEmulator();
|
|
D(bug("Initialization complete\n"));
|
|
|
|
#if !EMULATED_68K
|
|
// (Virtual) supervisor mode, disable interrupts
|
|
EmulatedSR = 0x2700;
|
|
|
|
#ifdef HAVE_PTHREADS
|
|
// Get handle of main thread
|
|
emul_thread = pthread_self();
|
|
#endif
|
|
|
|
// Create and install stack for signal handlers
|
|
sig_stack = malloc(SIG_STACK_SIZE);
|
|
D(bug("Signal stack at %p\n", sig_stack));
|
|
if (sig_stack == NULL) {
|
|
ErrorAlert(STR_NOT_ENOUGH_MEMORY_ERR);
|
|
QuitEmulator();
|
|
}
|
|
stack_t new_stack;
|
|
new_stack.ss_sp = sig_stack;
|
|
new_stack.ss_flags = 0;
|
|
new_stack.ss_size = SIG_STACK_SIZE;
|
|
if (sigaltstack(&new_stack, NULL) < 0) {
|
|
sprintf(str, GetString(STR_SIGALTSTACK_ERR), strerror(errno));
|
|
ErrorAlert(str);
|
|
QuitEmulator();
|
|
}
|
|
|
|
// Install SIGILL handler for emulating privileged instructions and
|
|
// executing A-Trap and EMUL_OP opcodes
|
|
sigemptyset(&sigill_sa.sa_mask); // Block virtual 68k interrupts during SIGILL handling
|
|
sigaddset(&sigill_sa.sa_mask, SIG_IRQ);
|
|
sigaddset(&sigill_sa.sa_mask, SIGALRM);
|
|
sigill_sa.sa_handler = (void (*)(int))sigill_handler;
|
|
sigill_sa.sa_flags = SA_ONSTACK;
|
|
if (sigaction(SIGILL, &sigill_sa, NULL) < 0) {
|
|
sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGILL", strerror(errno));
|
|
ErrorAlert(str);
|
|
QuitEmulator();
|
|
}
|
|
|
|
// Install virtual 68k interrupt signal handler
|
|
sigemptyset(&sigirq_sa.sa_mask);
|
|
sigaddset(&sigirq_sa.sa_mask, SIGALRM);
|
|
sigirq_sa.sa_handler = (void (*)(int))sigirq_handler;
|
|
sigirq_sa.sa_flags = SA_ONSTACK | SA_RESTART;
|
|
if (sigaction(SIG_IRQ, &sigirq_sa, NULL) < 0) {
|
|
sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIG_IRQ", strerror(errno));
|
|
ErrorAlert(str);
|
|
QuitEmulator();
|
|
}
|
|
#endif
|
|
|
|
#ifdef ENABLE_MON
|
|
// Setup SIGINT handler to enter mon
|
|
sigemptyset(&sigint_sa.sa_mask);
|
|
sigint_sa.sa_handler = (void (*)(int))sigint_handler;
|
|
sigint_sa.sa_flags = 0;
|
|
sigaction(SIGINT, &sigint_sa, NULL);
|
|
#endif
|
|
|
|
#ifndef USE_CPU_EMUL_SERVICES
|
|
#if defined(HAVE_PTHREADS)
|
|
|
|
// POSIX threads available, start 60Hz thread
|
|
Set_pthread_attr(&tick_thread_attr, 0);
|
|
tick_thread_active = (pthread_create(&tick_thread, &tick_thread_attr, tick_func, NULL) == 0);
|
|
if (!tick_thread_active) {
|
|
sprintf(str, GetString(STR_TICK_THREAD_ERR), strerror(errno));
|
|
ErrorAlert(str);
|
|
QuitEmulator();
|
|
}
|
|
D(bug("60Hz thread started\n"));
|
|
|
|
#elif defined(HAVE_TIMER_CREATE) && defined(_POSIX_REALTIME_SIGNALS)
|
|
|
|
// POSIX.4 timers and real-time signals available, start 60Hz timer
|
|
sigemptyset(&timer_sa.sa_mask);
|
|
timer_sa.sa_sigaction = (void (*)(int, siginfo_t *, void *))one_tick;
|
|
timer_sa.sa_flags = SA_SIGINFO | SA_RESTART;
|
|
if (sigaction(SIG_TIMER, &timer_sa, NULL) < 0) {
|
|
sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIG_TIMER", strerror(errno));
|
|
ErrorAlert(str);
|
|
QuitEmulator();
|
|
}
|
|
struct sigevent timer_event;
|
|
timer_event.sigev_notify = SIGEV_SIGNAL;
|
|
timer_event.sigev_signo = SIG_TIMER;
|
|
if (timer_create(CLOCK_REALTIME, &timer_event, &timer) < 0) {
|
|
sprintf(str, GetString(STR_TIMER_CREATE_ERR), strerror(errno));
|
|
ErrorAlert(str);
|
|
QuitEmulator();
|
|
}
|
|
struct itimerspec req;
|
|
req.it_value.tv_sec = 0;
|
|
req.it_value.tv_nsec = 16625000;
|
|
req.it_interval.tv_sec = 0;
|
|
req.it_interval.tv_nsec = 16625000;
|
|
if (timer_settime(timer, 0, &req, NULL) < 0) {
|
|
sprintf(str, GetString(STR_TIMER_SETTIME_ERR), strerror(errno));
|
|
ErrorAlert(str);
|
|
QuitEmulator();
|
|
}
|
|
D(bug("60Hz timer started\n"));
|
|
|
|
#else
|
|
|
|
// Start 60Hz timer
|
|
sigemptyset(&timer_sa.sa_mask); // Block virtual 68k interrupts during SIGARLM handling
|
|
#if !EMULATED_68K
|
|
sigaddset(&timer_sa.sa_mask, SIG_IRQ);
|
|
#endif
|
|
timer_sa.sa_handler = one_tick;
|
|
timer_sa.sa_flags = SA_ONSTACK | SA_RESTART;
|
|
if (sigaction(SIGALRM, &timer_sa, NULL) < 0) {
|
|
sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGALRM", strerror(errno));
|
|
ErrorAlert(str);
|
|
QuitEmulator();
|
|
}
|
|
struct itimerval req;
|
|
req.it_interval.tv_sec = req.it_value.tv_sec = 0;
|
|
req.it_interval.tv_usec = req.it_value.tv_usec = 16625;
|
|
setitimer(ITIMER_REAL, &req, NULL);
|
|
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef USE_PTHREADS_SERVICES
|
|
// Start XPRAM watchdog thread
|
|
memcpy(last_xpram, XPRAM, XPRAM_SIZE);
|
|
xpram_thread_active = (pthread_create(&xpram_thread, NULL, xpram_func, NULL) == 0);
|
|
D(bug("XPRAM thread started\n"));
|
|
#endif
|
|
|
|
// Start 68k and jump to ROM boot routine
|
|
D(bug("Starting emulation...\n"));
|
|
Start680x0();
|
|
|
|
QuitEmulator();
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* Quit emulator
|
|
*/
|
|
|
|
void QuitEmulator(void)
|
|
{
|
|
D(bug("QuitEmulator\n"));
|
|
|
|
#if EMULATED_68K
|
|
// Exit 680x0 emulation
|
|
Exit680x0();
|
|
#endif
|
|
|
|
#if defined(USE_CPU_EMUL_SERVICES)
|
|
// Show statistics
|
|
uint64 emulated_ticks_end = GetTicks_usec();
|
|
D(bug("%ld ticks in %ld usec = %f ticks/sec [%ld tick checks]\n",
|
|
(long)emulated_ticks_count, (long)(emulated_ticks_end - emulated_ticks_start),
|
|
emulated_ticks_count * 1000000.0 / (emulated_ticks_end - emulated_ticks_start), (long)n_check_ticks));
|
|
#elif defined(USE_PTHREADS_SERVICES)
|
|
// Stop 60Hz thread
|
|
if (tick_thread_active) {
|
|
tick_thread_cancel = true;
|
|
#ifdef HAVE_PTHREAD_CANCEL
|
|
pthread_cancel(tick_thread);
|
|
#endif
|
|
pthread_join(tick_thread, NULL);
|
|
}
|
|
#elif defined(HAVE_TIMER_CREATE) && defined(_POSIX_REALTIME_SIGNALS)
|
|
// Stop 60Hz timer
|
|
timer_delete(timer);
|
|
#else
|
|
struct itimerval req;
|
|
req.it_interval.tv_sec = req.it_value.tv_sec = 0;
|
|
req.it_interval.tv_usec = req.it_value.tv_usec = 0;
|
|
setitimer(ITIMER_REAL, &req, NULL);
|
|
#endif
|
|
|
|
#ifdef USE_PTHREADS_SERVICES
|
|
// Stop XPRAM watchdog thread
|
|
if (xpram_thread_active) {
|
|
xpram_thread_cancel = true;
|
|
#ifdef HAVE_PTHREAD_CANCEL
|
|
pthread_cancel(xpram_thread);
|
|
#endif
|
|
pthread_join(xpram_thread, NULL);
|
|
}
|
|
#endif
|
|
|
|
// Deinitialize everything
|
|
ExitAll();
|
|
|
|
// Free ROM/RAM areas
|
|
if (RAMBaseHost != VM_MAP_FAILED) {
|
|
vm_release(RAMBaseHost, RAMSize + 0x100000);
|
|
RAMBaseHost = NULL;
|
|
ROMBaseHost = NULL;
|
|
}
|
|
|
|
#if USE_SCRATCHMEM_SUBTERFUGE
|
|
// Delete scratch memory area
|
|
if (ScratchMem != (uint8 *)VM_MAP_FAILED) {
|
|
vm_release((void *)(ScratchMem - SCRATCH_MEM_SIZE/2), SCRATCH_MEM_SIZE);
|
|
ScratchMem = NULL;
|
|
}
|
|
#endif
|
|
|
|
#if REAL_ADDRESSING
|
|
// Delete Low Memory area
|
|
if (lm_area_mapped)
|
|
vm_release(0, 0x2000);
|
|
#endif
|
|
|
|
// Exit VM wrappers
|
|
vm_exit();
|
|
|
|
// Exit system routines
|
|
SysExit();
|
|
|
|
// Exit preferences
|
|
PrefsExit();
|
|
|
|
// Close X11 server connection
|
|
#ifndef USE_SDL_VIDEO
|
|
if (x_display)
|
|
XCloseDisplay(x_display);
|
|
#endif
|
|
|
|
// Notify GUI we are about to leave
|
|
if (gui_connection) {
|
|
if (rpc_method_invoke(gui_connection, RPC_METHOD_EXIT, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR)
|
|
rpc_method_wait_for_reply(gui_connection, RPC_TYPE_INVALID);
|
|
}
|
|
|
|
exit(0);
|
|
}
|
|
|
|
|
|
/*
|
|
* Code was patched, flush caches if neccessary (i.e. when using a real 680x0
|
|
* or a dynamically recompiling emulator)
|
|
*/
|
|
|
|
void FlushCodeCache(void *start, uint32 size)
|
|
{
|
|
#if USE_JIT
|
|
if (UseJIT)
|
|
flush_icache_range((uint8 *)start, size);
|
|
#endif
|
|
#if !EMULATED_68K && defined(__NetBSD__)
|
|
m68k_sync_icache(start, size);
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* SIGINT handler, enters mon
|
|
*/
|
|
|
|
#ifdef ENABLE_MON
|
|
static void sigint_handler(...)
|
|
{
|
|
#if EMULATED_68K
|
|
uaecptr nextpc;
|
|
extern void m68k_dumpstate(uaecptr *nextpc);
|
|
m68k_dumpstate(&nextpc);
|
|
#endif
|
|
VideoQuitFullScreen();
|
|
const char *arg[4] = {"mon", "-m", "-r", NULL};
|
|
mon(3, arg);
|
|
QuitEmulator();
|
|
}
|
|
#endif
|
|
|
|
|
|
#ifdef HAVE_PTHREADS
|
|
/*
|
|
* Pthread configuration
|
|
*/
|
|
|
|
void Set_pthread_attr(pthread_attr_t *attr, int priority)
|
|
{
|
|
pthread_attr_init(attr);
|
|
#if defined(_POSIX_THREAD_PRIORITY_SCHEDULING)
|
|
// Some of these only work for superuser
|
|
if (geteuid() == 0) {
|
|
pthread_attr_setinheritsched(attr, PTHREAD_EXPLICIT_SCHED);
|
|
pthread_attr_setschedpolicy(attr, SCHED_FIFO);
|
|
struct sched_param fifo_param;
|
|
fifo_param.sched_priority = ((sched_get_priority_min(SCHED_FIFO) +
|
|
sched_get_priority_max(SCHED_FIFO)) / 2 +
|
|
priority);
|
|
pthread_attr_setschedparam(attr, &fifo_param);
|
|
}
|
|
if (pthread_attr_setscope(attr, PTHREAD_SCOPE_SYSTEM) != 0) {
|
|
#ifdef PTHREAD_SCOPE_BOUND_NP
|
|
// If system scope is not available (eg. we're not running
|
|
// with CAP_SCHED_MGT capability on an SGI box), try bound
|
|
// scope. It exposes pthread scheduling to the kernel,
|
|
// without setting realtime priority.
|
|
pthread_attr_setscope(attr, PTHREAD_SCOPE_BOUND_NP);
|
|
#endif
|
|
}
|
|
#endif
|
|
}
|
|
#endif // HAVE_PTHREADS
|
|
|
|
|
|
/*
|
|
* Mutexes
|
|
*/
|
|
|
|
#ifdef HAVE_PTHREADS
|
|
|
|
struct B2_mutex {
|
|
B2_mutex() {
|
|
pthread_mutexattr_t attr;
|
|
pthread_mutexattr_init(&attr);
|
|
// Initialize the mutex for priority inheritance --
|
|
// required for accurate timing.
|
|
#if defined(HAVE_PTHREAD_MUTEXATTR_SETPROTOCOL) && !defined(__CYGWIN__)
|
|
pthread_mutexattr_setprotocol(&attr, PTHREAD_PRIO_INHERIT);
|
|
#endif
|
|
#if defined(HAVE_PTHREAD_MUTEXATTR_SETTYPE) && defined(PTHREAD_MUTEX_NORMAL)
|
|
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_NORMAL);
|
|
#endif
|
|
#ifdef HAVE_PTHREAD_MUTEXATTR_SETPSHARED
|
|
pthread_mutexattr_setpshared(&attr, PTHREAD_PROCESS_PRIVATE);
|
|
#endif
|
|
pthread_mutex_init(&m, &attr);
|
|
pthread_mutexattr_destroy(&attr);
|
|
}
|
|
~B2_mutex() {
|
|
pthread_mutex_trylock(&m); // Make sure it's locked before
|
|
pthread_mutex_unlock(&m); // unlocking it.
|
|
pthread_mutex_destroy(&m);
|
|
}
|
|
pthread_mutex_t m;
|
|
};
|
|
|
|
B2_mutex *B2_create_mutex(void)
|
|
{
|
|
return new B2_mutex;
|
|
}
|
|
|
|
void B2_lock_mutex(B2_mutex *mutex)
|
|
{
|
|
pthread_mutex_lock(&mutex->m);
|
|
}
|
|
|
|
void B2_unlock_mutex(B2_mutex *mutex)
|
|
{
|
|
pthread_mutex_unlock(&mutex->m);
|
|
}
|
|
|
|
void B2_delete_mutex(B2_mutex *mutex)
|
|
{
|
|
delete mutex;
|
|
}
|
|
|
|
#else
|
|
|
|
struct B2_mutex {
|
|
int dummy;
|
|
};
|
|
|
|
B2_mutex *B2_create_mutex(void)
|
|
{
|
|
return new B2_mutex;
|
|
}
|
|
|
|
void B2_lock_mutex(B2_mutex *mutex)
|
|
{
|
|
}
|
|
|
|
void B2_unlock_mutex(B2_mutex *mutex)
|
|
{
|
|
}
|
|
|
|
void B2_delete_mutex(B2_mutex *mutex)
|
|
{
|
|
delete mutex;
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
/*
|
|
* Interrupt flags (must be handled atomically!)
|
|
*/
|
|
|
|
uint32 InterruptFlags = 0;
|
|
|
|
#if EMULATED_68K
|
|
void SetInterruptFlag(uint32 flag)
|
|
{
|
|
LOCK_INTFLAGS;
|
|
InterruptFlags |= flag;
|
|
UNLOCK_INTFLAGS;
|
|
}
|
|
|
|
void ClearInterruptFlag(uint32 flag)
|
|
{
|
|
LOCK_INTFLAGS;
|
|
InterruptFlags &= ~flag;
|
|
UNLOCK_INTFLAGS;
|
|
}
|
|
#endif
|
|
|
|
#if !EMULATED_68K
|
|
void TriggerInterrupt(void)
|
|
{
|
|
#if defined(HAVE_PTHREADS)
|
|
pthread_kill(emul_thread, SIG_IRQ);
|
|
#else
|
|
raise(SIG_IRQ);
|
|
#endif
|
|
}
|
|
|
|
void TriggerNMI(void)
|
|
{
|
|
// not yet supported
|
|
}
|
|
#endif
|
|
|
|
|
|
/*
|
|
* XPRAM watchdog thread (saves XPRAM every minute)
|
|
*/
|
|
|
|
static void xpram_watchdog(void)
|
|
{
|
|
if (memcmp(last_xpram, XPRAM, XPRAM_SIZE)) {
|
|
memcpy(last_xpram, XPRAM, XPRAM_SIZE);
|
|
SaveXPRAM();
|
|
}
|
|
}
|
|
|
|
#ifdef USE_PTHREADS_SERVICES
|
|
static void *xpram_func(void *arg)
|
|
{
|
|
while (!xpram_thread_cancel) {
|
|
for (int i=0; i<60 && !xpram_thread_cancel; i++)
|
|
Delay_usec(999999); // Only wait 1 second so we quit promptly when xpram_thread_cancel becomes true
|
|
xpram_watchdog();
|
|
}
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
|
|
/*
|
|
* 60Hz thread (really 60.15Hz)
|
|
*/
|
|
|
|
static void one_second(void)
|
|
{
|
|
// Pseudo Mac 1Hz interrupt, update local time
|
|
WriteMacInt32(0x20c, TimerDateTime());
|
|
|
|
SetInterruptFlag(INTFLAG_1HZ);
|
|
TriggerInterrupt();
|
|
|
|
#ifndef USE_PTHREADS_SERVICES
|
|
static int second_counter = 0;
|
|
if (++second_counter > 60) {
|
|
second_counter = 0;
|
|
xpram_watchdog();
|
|
}
|
|
#endif
|
|
}
|
|
|
|
static void one_tick(...)
|
|
{
|
|
static int tick_counter = 0;
|
|
if (++tick_counter > 60) {
|
|
tick_counter = 0;
|
|
one_second();
|
|
}
|
|
|
|
#ifndef USE_PTHREADS_SERVICES
|
|
// Threads not used to trigger interrupts, perform video refresh from here
|
|
VideoRefresh();
|
|
#endif
|
|
|
|
#ifndef HAVE_PTHREADS
|
|
// No threads available, perform networking from here
|
|
SetInterruptFlag(INTFLAG_ETHER);
|
|
#endif
|
|
|
|
// Trigger 60Hz interrupt
|
|
if (ROMVersion != ROM_VERSION_CLASSIC || HasMacStarted()) {
|
|
SetInterruptFlag(INTFLAG_60HZ);
|
|
TriggerInterrupt();
|
|
}
|
|
}
|
|
|
|
#ifdef USE_PTHREADS_SERVICES
|
|
static void *tick_func(void *arg)
|
|
{
|
|
uint64 start = GetTicks_usec();
|
|
int64 ticks = 0;
|
|
uint64 next = GetTicks_usec();
|
|
while (!tick_thread_cancel) {
|
|
one_tick();
|
|
next += 16625;
|
|
int64 delay = next - GetTicks_usec();
|
|
if (delay > 0)
|
|
Delay_usec(delay);
|
|
else if (delay < -16625)
|
|
next = GetTicks_usec();
|
|
ticks++;
|
|
}
|
|
uint64 end = GetTicks_usec();
|
|
D(bug("%lld ticks in %lld usec = %f ticks/sec\n", ticks, end - start, ticks * 1000000.0 / (end - start)));
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
|
|
#if !EMULATED_68K
|
|
/*
|
|
* Virtual 68k interrupt handler
|
|
*/
|
|
|
|
static void sigirq_handler(int sig, int code, struct sigcontext *scp)
|
|
{
|
|
// Interrupts disabled? Then do nothing
|
|
if (EmulatedSR & 0x0700)
|
|
return;
|
|
|
|
struct sigstate *state = (struct sigstate *)scp->sc_ap;
|
|
M68kRegisters *regs = (M68kRegisters *)&state->ss_frame;
|
|
|
|
// Set up interrupt frame on stack
|
|
uint32 a7 = regs->a[7];
|
|
a7 -= 2;
|
|
WriteMacInt16(a7, 0x64);
|
|
a7 -= 4;
|
|
WriteMacInt32(a7, scp->sc_pc);
|
|
a7 -= 2;
|
|
WriteMacInt16(a7, scp->sc_ps | EmulatedSR);
|
|
scp->sc_sp = regs->a[7] = a7;
|
|
|
|
// Set interrupt level
|
|
EmulatedSR |= 0x2100;
|
|
|
|
// Jump to MacOS interrupt handler on return
|
|
scp->sc_pc = ReadMacInt32(0x64);
|
|
}
|
|
|
|
|
|
/*
|
|
* SIGILL handler, for emulation of privileged instructions and executing
|
|
* A-Trap and EMUL_OP opcodes
|
|
*/
|
|
|
|
static void sigill_handler(int sig, int code, struct sigcontext *scp)
|
|
{
|
|
struct sigstate *state = (struct sigstate *)scp->sc_ap;
|
|
uint16 *pc = (uint16 *)scp->sc_pc;
|
|
uint16 opcode = *pc;
|
|
M68kRegisters *regs = (M68kRegisters *)&state->ss_frame;
|
|
|
|
#define INC_PC(n) scp->sc_pc += (n)
|
|
|
|
#define GET_SR (scp->sc_ps | EmulatedSR)
|
|
|
|
#define STORE_SR(v) \
|
|
scp->sc_ps = (v) & 0xff; \
|
|
EmulatedSR = (v) & 0xe700; \
|
|
if (((v) & 0x0700) == 0 && InterruptFlags) \
|
|
TriggerInterrupt();
|
|
|
|
//printf("opcode %04x at %p, sr %04x, emul_sr %04x\n", opcode, pc, scp->sc_ps, EmulatedSR);
|
|
|
|
if ((opcode & 0xf000) == 0xa000) {
|
|
|
|
// A-Line instruction, set up A-Line trap frame on stack
|
|
uint32 a7 = regs->a[7];
|
|
a7 -= 2;
|
|
WriteMacInt16(a7, 0x28);
|
|
a7 -= 4;
|
|
WriteMacInt32(a7, (uint32)pc);
|
|
a7 -= 2;
|
|
WriteMacInt16(a7, GET_SR);
|
|
scp->sc_sp = regs->a[7] = a7;
|
|
|
|
// Jump to MacOS A-Line handler on return
|
|
scp->sc_pc = ReadMacInt32(0x28);
|
|
|
|
} else if ((opcode & 0xff00) == 0x7100) {
|
|
|
|
// Extended opcode, push registers on user stack
|
|
uint32 a7 = regs->a[7];
|
|
a7 -= 4;
|
|
WriteMacInt32(a7, (uint32)pc);
|
|
a7 -= 2;
|
|
WriteMacInt16(a7, scp->sc_ps);
|
|
for (int i=7; i>=0; i--) {
|
|
a7 -= 4;
|
|
WriteMacInt32(a7, regs->a[i]);
|
|
}
|
|
for (int i=7; i>=0; i--) {
|
|
a7 -= 4;
|
|
WriteMacInt32(a7, regs->d[i]);
|
|
}
|
|
scp->sc_sp = regs->a[7] = a7;
|
|
|
|
// Jump to EmulOp trampoline code on return
|
|
scp->sc_pc = (uint32)EmulOpTrampoline;
|
|
|
|
} else switch (opcode) { // Emulate privileged instructions
|
|
|
|
case 0x40e7: // move sr,-(sp)
|
|
regs->a[7] -= 2;
|
|
WriteMacInt16(regs->a[7], GET_SR);
|
|
scp->sc_sp = regs->a[7];
|
|
INC_PC(2);
|
|
break;
|
|
|
|
case 0x46df: { // move (sp)+,sr
|
|
uint16 sr = ReadMacInt16(regs->a[7]);
|
|
STORE_SR(sr);
|
|
regs->a[7] += 2;
|
|
scp->sc_sp = regs->a[7];
|
|
INC_PC(2);
|
|
break;
|
|
}
|
|
|
|
case 0x007c: { // ori #xxxx,sr
|
|
uint16 sr = GET_SR | pc[1];
|
|
scp->sc_ps = sr & 0xff; // oring bits into the sr can't enable interrupts, so we don't need to call STORE_SR
|
|
EmulatedSR = sr & 0xe700;
|
|
INC_PC(4);
|
|
break;
|
|
}
|
|
|
|
case 0x027c: { // andi #xxxx,sr
|
|
uint16 sr = GET_SR & pc[1];
|
|
STORE_SR(sr);
|
|
INC_PC(4);
|
|
break;
|
|
}
|
|
|
|
case 0x46fc: // move #xxxx,sr
|
|
STORE_SR(pc[1]);
|
|
INC_PC(4);
|
|
break;
|
|
|
|
case 0x46ef: { // move (xxxx,sp),sr
|
|
uint16 sr = ReadMacInt16(regs->a[7] + (int32)(int16)pc[1]);
|
|
STORE_SR(sr);
|
|
INC_PC(4);
|
|
break;
|
|
}
|
|
|
|
case 0x46d8: // move (a0)+,sr
|
|
case 0x46d9: { // move (a1)+,sr
|
|
uint16 sr = ReadMacInt16(regs->a[opcode & 7]);
|
|
STORE_SR(sr);
|
|
regs->a[opcode & 7] += 2;
|
|
INC_PC(2);
|
|
break;
|
|
}
|
|
|
|
case 0x40f8: // move sr,xxxx.w
|
|
WriteMacInt16(pc[1], GET_SR);
|
|
INC_PC(4);
|
|
break;
|
|
|
|
case 0x40d0: // move sr,(a0)
|
|
case 0x40d1: // move sr,(a1)
|
|
case 0x40d2: // move sr,(a2)
|
|
case 0x40d3: // move sr,(a3)
|
|
case 0x40d4: // move sr,(a4)
|
|
case 0x40d5: // move sr,(a5)
|
|
case 0x40d6: // move sr,(a6)
|
|
case 0x40d7: // move sr,(sp)
|
|
WriteMacInt16(regs->a[opcode & 7], GET_SR);
|
|
INC_PC(2);
|
|
break;
|
|
|
|
case 0x40c0: // move sr,d0
|
|
case 0x40c1: // move sr,d1
|
|
case 0x40c2: // move sr,d2
|
|
case 0x40c3: // move sr,d3
|
|
case 0x40c4: // move sr,d4
|
|
case 0x40c5: // move sr,d5
|
|
case 0x40c6: // move sr,d6
|
|
case 0x40c7: // move sr,d7
|
|
regs->d[opcode & 7] = GET_SR;
|
|
INC_PC(2);
|
|
break;
|
|
|
|
case 0x46c0: // move d0,sr
|
|
case 0x46c1: // move d1,sr
|
|
case 0x46c2: // move d2,sr
|
|
case 0x46c3: // move d3,sr
|
|
case 0x46c4: // move d4,sr
|
|
case 0x46c5: // move d5,sr
|
|
case 0x46c6: // move d6,sr
|
|
case 0x46c7: { // move d7,sr
|
|
uint16 sr = regs->d[opcode & 7];
|
|
STORE_SR(sr);
|
|
INC_PC(2);
|
|
break;
|
|
}
|
|
|
|
case 0xf327: // fsave -(sp)
|
|
regs->a[7] -= 4;
|
|
WriteMacInt32(regs->a[7], 0x41000000); // Idle frame
|
|
scp->sc_sp = regs->a[7];
|
|
INC_PC(2);
|
|
break;
|
|
|
|
case 0xf35f: // frestore (sp)+
|
|
regs->a[7] += 4;
|
|
scp->sc_sp = regs->a[7];
|
|
INC_PC(2);
|
|
break;
|
|
|
|
case 0x4e73: { // rte
|
|
uint32 a7 = regs->a[7];
|
|
uint16 sr = ReadMacInt16(a7);
|
|
a7 += 2;
|
|
scp->sc_ps = sr & 0xff;
|
|
EmulatedSR = sr & 0xe700;
|
|
scp->sc_pc = ReadMacInt32(a7);
|
|
a7 += 4;
|
|
uint16 format = ReadMacInt16(a7) >> 12;
|
|
a7 += 2;
|
|
static const int frame_adj[16] = {
|
|
0, 0, 4, 4, 8, 0, 0, 52, 50, 12, 24, 84, 16, 0, 0, 0
|
|
};
|
|
scp->sc_sp = regs->a[7] = a7 + frame_adj[format];
|
|
break;
|
|
}
|
|
|
|
case 0x4e7a: // movec cr,x
|
|
switch (pc[1]) {
|
|
case 0x0002: // movec cacr,d0
|
|
regs->d[0] = 0x3111;
|
|
break;
|
|
case 0x1002: // movec cacr,d1
|
|
regs->d[1] = 0x3111;
|
|
break;
|
|
case 0x0003: // movec tc,d0
|
|
case 0x0004: // movec itt0,d0
|
|
case 0x0005: // movec itt1,d0
|
|
case 0x0006: // movec dtt0,d0
|
|
case 0x0007: // movec dtt1,d0
|
|
case 0x0806: // movec urp,d0
|
|
case 0x0807: // movec srp,d0
|
|
regs->d[0] = 0;
|
|
break;
|
|
case 0x1000: // movec sfc,d1
|
|
case 0x1001: // movec dfc,d1
|
|
case 0x1003: // movec tc,d1
|
|
case 0x1801: // movec vbr,d1
|
|
regs->d[1] = 0;
|
|
break;
|
|
case 0x8801: // movec vbr,a0
|
|
regs->a[0] = 0;
|
|
break;
|
|
case 0x9801: // movec vbr,a1
|
|
regs->a[1] = 0;
|
|
break;
|
|
default:
|
|
goto ill;
|
|
}
|
|
INC_PC(4);
|
|
break;
|
|
|
|
case 0x4e7b: // movec x,cr
|
|
switch (pc[1]) {
|
|
case 0x1000: // movec d1,sfc
|
|
case 0x1001: // movec d1,dfc
|
|
case 0x0801: // movec d0,vbr
|
|
case 0x1801: // movec d1,vbr
|
|
break;
|
|
case 0x0002: // movec d0,cacr
|
|
case 0x1002: // movec d1,cacr
|
|
FlushCodeCache(NULL, 0);
|
|
break;
|
|
default:
|
|
goto ill;
|
|
}
|
|
INC_PC(4);
|
|
break;
|
|
|
|
case 0xf478: // cpusha dc
|
|
case 0xf4f8: // cpusha dc/ic
|
|
FlushCodeCache(NULL, 0);
|
|
INC_PC(2);
|
|
break;
|
|
|
|
default:
|
|
ill: printf("SIGILL num %d, code %d\n", sig, code);
|
|
printf(" context %p:\n", scp);
|
|
printf(" onstack %08x\n", scp->sc_onstack);
|
|
printf(" sp %08x\n", scp->sc_sp);
|
|
printf(" fp %08x\n", scp->sc_fp);
|
|
printf(" pc %08x\n", scp->sc_pc);
|
|
printf(" opcode %04x\n", opcode);
|
|
printf(" sr %08x\n", scp->sc_ps);
|
|
printf(" state %p:\n", state);
|
|
printf(" flags %d\n", state->ss_flags);
|
|
for (int i=0; i<8; i++)
|
|
printf(" d%d %08x\n", i, state->ss_frame.f_regs[i]);
|
|
for (int i=0; i<8; i++)
|
|
printf(" a%d %08x\n", i, state->ss_frame.f_regs[i+8]);
|
|
|
|
VideoQuitFullScreen();
|
|
#ifdef ENABLE_MON
|
|
const char *arg[4] = {"mon", "-m", "-r", NULL};
|
|
mon(3, arg);
|
|
#endif
|
|
QuitEmulator();
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
|
|
/*
|
|
* Display alert
|
|
*/
|
|
|
|
#ifdef ENABLE_GTK
|
|
static void dl_destroyed(void)
|
|
{
|
|
gtk_main_quit();
|
|
}
|
|
|
|
static void dl_quit(GtkWidget *dialog)
|
|
{
|
|
gtk_widget_destroy(dialog);
|
|
}
|
|
|
|
void display_alert(int title_id, int prefix_id, int button_id, const char *text)
|
|
{
|
|
char str[256];
|
|
sprintf(str, GetString(prefix_id), text);
|
|
|
|
GtkWidget *dialog = gtk_dialog_new();
|
|
gtk_window_set_title(GTK_WINDOW(dialog), GetString(title_id));
|
|
gtk_container_border_width(GTK_CONTAINER(dialog), 5);
|
|
gtk_widget_set_uposition(GTK_WIDGET(dialog), 100, 150);
|
|
gtk_signal_connect(GTK_OBJECT(dialog), "destroy", GTK_SIGNAL_FUNC(dl_destroyed), NULL);
|
|
|
|
GtkWidget *label = gtk_label_new(str);
|
|
gtk_widget_show(label);
|
|
gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), label, TRUE, TRUE, 0);
|
|
|
|
GtkWidget *button = gtk_button_new_with_label(GetString(button_id));
|
|
gtk_widget_show(button);
|
|
gtk_signal_connect_object(GTK_OBJECT(button), "clicked", GTK_SIGNAL_FUNC(dl_quit), GTK_OBJECT(dialog));
|
|
gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->action_area), button, FALSE, FALSE, 0);
|
|
GTK_WIDGET_SET_FLAGS(button, GTK_CAN_DEFAULT);
|
|
gtk_widget_grab_default(button);
|
|
gtk_widget_show(dialog);
|
|
|
|
gtk_main();
|
|
}
|
|
#endif
|
|
|
|
|
|
/*
|
|
* Display error alert
|
|
*/
|
|
|
|
void ErrorAlert(const char *text)
|
|
{
|
|
if (gui_connection) {
|
|
if (rpc_method_invoke(gui_connection, RPC_METHOD_ERROR_ALERT, RPC_TYPE_STRING, text, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR &&
|
|
rpc_method_wait_for_reply(gui_connection, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR)
|
|
return;
|
|
}
|
|
#if defined(ENABLE_GTK) && !defined(USE_SDL_VIDEO)
|
|
if (PrefsFindBool("nogui") || x_display == NULL) {
|
|
printf(GetString(STR_SHELL_ERROR_PREFIX), text);
|
|
return;
|
|
}
|
|
VideoQuitFullScreen();
|
|
display_alert(STR_ERROR_ALERT_TITLE, STR_GUI_ERROR_PREFIX, STR_QUIT_BUTTON, text);
|
|
#else
|
|
printf(GetString(STR_SHELL_ERROR_PREFIX), text);
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* Display warning alert
|
|
*/
|
|
|
|
void WarningAlert(const char *text)
|
|
{
|
|
if (gui_connection) {
|
|
if (rpc_method_invoke(gui_connection, RPC_METHOD_WARNING_ALERT, RPC_TYPE_STRING, text, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR &&
|
|
rpc_method_wait_for_reply(gui_connection, RPC_TYPE_INVALID) == RPC_ERROR_NO_ERROR)
|
|
return;
|
|
}
|
|
#if defined(ENABLE_GTK) && !defined(USE_SDL_VIDEO)
|
|
if (PrefsFindBool("nogui") || x_display == NULL) {
|
|
printf(GetString(STR_SHELL_WARNING_PREFIX), text);
|
|
return;
|
|
}
|
|
display_alert(STR_WARNING_ALERT_TITLE, STR_GUI_WARNING_PREFIX, STR_OK_BUTTON, text);
|
|
#else
|
|
printf(GetString(STR_SHELL_WARNING_PREFIX), text);
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* Display choice alert
|
|
*/
|
|
|
|
bool ChoiceAlert(const char *text, const char *pos, const char *neg)
|
|
{
|
|
printf(GetString(STR_SHELL_WARNING_PREFIX), text);
|
|
return false; //!!
|
|
}
|