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/* |
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* Emulator.mm - Class whose actions are attached to GUI widgets in a window, |
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* used to control a single Basilisk II emulated Macintosh. |
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* |
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* $Id: Emulator.mm,v 1.5 2003/03/26 01:45:31 nigel Exp $ |
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* |
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* Basilisk II (C) 1997-2002 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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|
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#import "Emulator.h" |
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#import "EmulatorView.h" |
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|
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@implementation Emulator |
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|
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#import "sysdeps.h" // Types used in Basilisk C++ code |
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|
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#import "main_macosx.h" // Prototypes for QuitEmuNoExit() and InitEmulator() |
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#import "misc_macosx.h" // Some other prototypes |
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#import "video_macosx.h" // Some window/view globals |
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|
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#import <adb.h> |
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#import <main.h> |
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#import <prefs.h> |
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#import <timer.h> |
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|
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#undef check() // memory.h defines a check macro, clashes with an OS X one? |
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#import <cpu_emulation.h> |
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|
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#define DEBUG 0 |
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#import <debug.h> |
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|
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// NSWindow method, which is invoked via delegation |
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|
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- (BOOL) windowShouldClose: (id)sender |
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{ |
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if ( uaeCreated ) |
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{ |
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NSLog(@"windowShouldClose returning NO"); |
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return NO; // Should initiate poweroff and return NSTerminateLater ? |
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} |
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|
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NSLog(@"windowShouldClose returning YES"); |
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return YES; |
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} |
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|
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// Default methods |
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|
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- (Emulator *) init |
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{ |
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int frameSkip; |
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|
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self = [super init]; |
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|
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running = NO; // Save churn when application loads |
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// running = YES; |
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uaeCreated = NO; |
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|
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frameSkip = PrefsFindInt32("frameskip"); |
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if ( frameSkip ) |
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redrawDelay = frameSkip / 60.0; |
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else |
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redrawDelay = 0.0; |
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|
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// We do this so that we can work out if we are in full screen mode: |
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parse_screen_prefs(PrefsFindString("screen")); |
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|
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[self createThreads]; |
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|
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return self; |
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} |
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|
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- (void) awakeFromNib |
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{ |
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the_win = win; // Set global for access by Basilisk C++ code |
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|
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|
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[win setDelegate: self]; // Enable windowShouldClose calling |
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|
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// Try to speed up everything |
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//[win setHasShadow: NO]; // This causes view & window to now be drawn correctly |
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[win useOptimizedDrawing: YES]; |
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|
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[win makeKeyAndOrderFront:self]; |
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|
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if ( redrawDelay ) |
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[speed setFloatValue: 1.0 / redrawDelay]; |
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else |
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[speed setFloatValue: 60.0]; |
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|
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|
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if ( runOrPause == nil ) |
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NSLog(@"%s - runOrPause button pointer is nil!", __PRETTY_FUNCTION__); |
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|
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[self runUpdate]; |
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} |
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|
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|
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// Helpers which other classes use to access our private stuff |
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|
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- (BOOL) isRunning { return running; } |
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- (BOOL) uaeCreated { return uaeCreated; } |
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- (EmulatorView *) screen { return screen; } |
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- (NSSlider *) speed { return speed; } |
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- (NSWindow *) window { return win; } |
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|
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|
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// Update some UI elements |
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|
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- (void) runUpdate |
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{ |
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if ( running ) |
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[runOrPause setState: NSOnState]; // Running. Change button label to 'Pause' |
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else |
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[runOrPause setState: NSOffState]; // Paused. Change button label to 'Run' |
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|
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[win setDocumentEdited: uaeCreated]; // Set the little dimple in the close button |
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} |
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|
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|
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// Methods invoked by buttons & menu items |
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|
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- (IBAction) Benchmark: (id)sender; |
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{ |
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BOOL wasRunning = running; |
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|
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if ( running ) |
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[self Suspend: self]; |
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[screen benchmark]; |
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if ( wasRunning ) |
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[self Resume: self]; |
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} |
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|
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#ifdef NIGEL |
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- (IBAction) EjectCD: (id)sender; |
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{ |
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NSString *path; |
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const char *cdrom = PrefsFindString("cdrom"); |
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|
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if ( cdrom ) |
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{ |
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#include <sys/param.h> |
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#define KERNEL |
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#include <sys/mount.h> |
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|
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struct statfs buf; |
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if ( fsstat(path, &buf) < 0 ) |
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return; |
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|
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path = [NSString stringWithCString: cdrom]; |
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|
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[[NSWorkspace sharedWorkspace] unmountAndEjectDeviceAtPath: path]; |
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// [path release]; |
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} |
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} |
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#endif |
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|
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- (IBAction) Interrupt: (id)sender; |
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{ |
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WarningSheet (@"Interrupt action not yet supported", win); |
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} |
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|
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- (IBAction) PowerKey: (id)sender; |
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{ |
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if ( uaeCreated ) // If Mac has started |
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{ |
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ADBKeyDown(0x7f); // Send power key, which is also |
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ADBKeyUp(0x7f); // called ADB_RESET or ADB_POWER |
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} |
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else |
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{ |
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running = YES; // Start emulator |
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[self runUpdate]; |
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[self Resume: nil]; |
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} |
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} |
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|
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- (IBAction) Restart: (id)sender |
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{ |
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if ( running ) |
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// reset680x0(); |
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{ |
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uaeCreated = NO; |
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[redraw suspend]; |
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NSLog (@"%s - uae_cpu reset not yet supported, will try to fake it", |
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__PRETTY_FUNCTION__); |
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|
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[screen clear]; |
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[screen display]; |
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|
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[emul terminate]; QuitEmuNoExit(); |
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|
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|
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// OK. We have killed & cleaned up. Now, start afresh: |
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#include <sys.h> |
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int argc = 0; |
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char **argv; |
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|
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PrefsInit(argc, argv); |
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SysInit(); |
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|
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emul = [NNThread new]; |
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[emul perform:@selector(emulThread) of:self]; |
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[emul start]; |
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|
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if ( display_type != DISPLAY_SCREEN ) |
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[redraw resume]; |
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} |
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} |
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|
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- (IBAction) Resume: (id)sender |
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{ |
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[RTC resume]; |
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[emul resume]; |
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if ( display_type != DISPLAY_SCREEN ) |
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[redraw resume]; |
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[tick resume]; |
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[xPRAM resume]; |
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} |
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|
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- (IBAction) ScreenHideShow: (NSButton *)sender; |
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{ |
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WarningSheet(@"Nigel doesn't know how to shrink or grow this window", |
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@"Maybe you can grab the source code and have a go yourself?", |
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nil, win); |
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} |
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|
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- (IBAction) Snapshot: (id) sender |
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{ |
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if ( screen == nil || uaeCreated == NO ) |
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WarningSheet(@"The emulator has not yet started.", |
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@"There is no screen output to snapshot", |
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nil, win); |
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else |
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{ |
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NSData *TIFFdata; |
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|
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[self Suspend: self]; |
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|
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TIFFdata = [screen TIFFrep]; |
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if ( TIFFdata == nil ) |
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NSLog(@"%s - Unable to convert Basilisk screen to a TIFF representation", |
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__PRETTY_FUNCTION__); |
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else |
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{ |
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NSSavePanel *sp = [NSSavePanel savePanel]; |
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|
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[sp setRequiredFileType:@"tiff"]; |
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|
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if ( [sp runModalForDirectory:NSHomeDirectory() |
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file:@"B2-screen-snapshot.tiff"] == NSOKButton ) |
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if ( ! [TIFFdata writeToFile:[sp filename] atomically:YES] ) |
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NSLog(@"%s - Could not write TIFF data to file @%", |
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__PRETTY_FUNCTION__, [sp filename]); |
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|
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} |
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if ( running ) |
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[self Resume: self]; |
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} |
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} |
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|
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- (IBAction) SpeedChange: (NSSlider *)sender |
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{ |
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float frequency = [sender floatValue]; |
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|
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[redraw suspend]; |
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|
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if ( frequency == 0.0 ) |
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redrawDelay = 0.0; |
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else |
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{ |
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frequencyToTickDelay(frequency); |
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|
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redrawDelay = 1.0 / frequency; |
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|
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[redraw changeIntervalTo: (int)(redrawDelay * 1e6) |
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units: NNmicroSeconds]; |
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if ( running && display_type != DISPLAY_SCREEN ) |
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[redraw resume]; |
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} |
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} |
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|
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- (IBAction) Suspend: (id)sender |
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{ |
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[RTC suspend]; |
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[emul suspend]; |
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[redraw suspend]; |
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[tick suspend]; |
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[xPRAM suspend]; |
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} |
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|
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- (IBAction) ToggleState: (NSButton *)sender |
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{ |
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running = [sender state]; // State of the toggled NSButton |
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if ( running ) |
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[self Resume: nil]; |
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else |
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[self Suspend: nil]; |
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} |
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|
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- (IBAction) Terminate: (id)sender; |
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{ |
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[self exitThreads]; |
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[win performClose: self]; |
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} |
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|
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#include <xpram.h> |
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|
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#define XPRAM_SIZE 256 |
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|
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uint8 lastXPRAM[XPRAM_SIZE]; // Copy of PRAM |
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|
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- (IBAction) ZapPRAM: (id)sender; |
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{ |
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memset(XPRAM, 0, XPRAM_SIZE); |
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memset(lastXPRAM, 0, XPRAM_SIZE); |
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ZapPRAM(); |
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} |
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|
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// |
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// Threads, Timers and stuff to manage them: |
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// |
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|
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- (void) createThreads |
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{ |
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#ifdef USE_PTHREADS |
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// Make UI threadsafe: |
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[NSThread detachNewThreadSelector:(SEL)"" toTarget:nil withObject:nil]; |
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//emul = [[NNThread alloc] initWithAutoReleasePool]; |
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#endif |
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emul = [NNThread new]; |
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RTC = [NNTimer new]; |
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redraw = [NNTimer new]; |
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tick = [NNTimer new]; |
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xPRAM = [NNTimer new]; |
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|
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[emul perform:@selector(emulThread) of:self]; |
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[RTC repeat:@selector(RTCinterrupt) of:self |
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every:1 |
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units:NNseconds]; |
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[redraw repeat:@selector(redrawScreen) of:self |
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every:(int)(1000*redrawDelay) |
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units:NNmilliSeconds]; |
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[tick repeat:@selector(tickInterrupt) of:self |
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every:16625 |
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units:NNmicroSeconds]; |
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[xPRAM repeat:@selector(xPRAMbackup) of:self |
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every:60 |
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units:NNseconds]; |
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|
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if ( running ) // Start emulator, then threads in most economical order |
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{ |
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[emul start]; |
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[xPRAM start]; |
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[RTC start]; |
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if ( display_type != DISPLAY_SCREEN ) |
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[redraw start]; |
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[tick start]; |
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} |
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} |
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|
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- (void) exitThreads |
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{ |
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running = NO; |
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[emul terminate]; [emul release]; emul = nil; |
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[tick invalidate]; [tick release]; tick = nil; |
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[redraw invalidate]; [redraw release]; redraw = nil; |
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[RTC invalidate]; [RTC release]; RTC = nil; |
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[xPRAM invalidate]; [xPRAM release]; xPRAM = nil; |
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} |
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|
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- (void) emulThread |
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{ |
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NSAutoreleasePool *pool = [NSAutoreleasePool new]; |
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|
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if ( ! InitEmulator() ) |
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{ |
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[redraw suspend]; // Stop the barberpole |
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|
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ErrorSheet(@"Cannot start Emulator", @"", @"Quit", win); |
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} |
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else |
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{ |
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memcpy(lastXPRAM, XPRAM, XPRAM_SIZE); |
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|
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uaeCreated = YES; // Enable timers to access emulated Mac's memory |
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|
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while ( screen == nil ) // If we are still loading from Nib? |
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[NSThread sleepUntilDate:[NSDate dateWithTimeIntervalSinceNow: 1.0]]; |
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|
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[self runUpdate]; // Set the window close gadget to dimpled |
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|
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Start680x0(); // Start 68k and jump to ROM boot routine |
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|
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puts ("Emulator exited normally"); |
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} |
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|
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[pool release]; |
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QuitEmulator(); |
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} |
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|
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- (void) RTCinterrupt |
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{ |
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if ( uaeCreated ) |
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WriteMacInt32 (0x20c, TimerDateTime() ); // Update MacOS time |
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} |
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|
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- (void) redrawScreen |
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{ |
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if ( display_type == DISPLAY_SCREEN ) |
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{ |
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NSLog(@"We are in fullscreen mode - why was redrawScreen() called?"); |
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return; |
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} |
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[barberPole animate:self]; // wobble the pole |
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[screen setNeedsDisplay: YES]; // redisplay next time through runLoop |
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// Or, use a direct method. e.g. |
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// [screen display] or [screen cgDrawInto: ...]; |
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} |
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|
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#include <main.h> // For #define INTFLAG_60HZ |
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#include <rom_patches.h> // For ROMVersion |
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#include "macos_util_macosx.h" // For HasMacStarted() |
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|
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- (void) tickInterrupt |
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{ |
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if ( ROMVersion != ROM_VERSION_CLASSIC || HasMacStarted() ) |
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{ |
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SetInterruptFlag (INTFLAG_60HZ); |
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TriggerInterrupt (); |
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} |
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} |
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|
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- (void) xPRAMbackup |
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{ |
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if ( uaeCreated && |
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memcmp(lastXPRAM, XPRAM, XPRAM_SIZE) ) // if PRAM changed from copy |
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{ |
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memcpy (lastXPRAM, XPRAM, XPRAM_SIZE); // re-copy |
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SaveXPRAM (); // and save to disk |
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} |
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} |
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|
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@end |
