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Comparing BasiliskII/src/AmigaOS/main_amiga.cpp (file contents):
Revision 1.1 by cebix, 1999-10-03T14:16:25Z vs.
Revision 1.13 by cebix, 2001-01-04T19:50:22Z

# Line 1 | Line 1
1   /*
2   *  main_amiga.cpp - Startup code for AmigaOS
3   *
4 < *  Basilisk II (C) 1997-1999 Christian Bauer
4 > *  Basilisk II (C) 1997-2000 Christian Bauer
5   *
6   *  This program is free software; you can redistribute it and/or modify
7   *  it under the terms of the GNU General Public License as published by
# Line 56 | Line 56
56   #include "debug.h"
57  
58  
59 + // Options for libnix
60 + unsigned long __stack = 0x4000;         // Stack requirement
61 + int __nocommandline = 1;                        // Disable command line parsing
62 +
63 +
64   // Constants
65   static const char ROM_FILE_NAME[] = "ROM";
66 < static const char __ver[] = "$VER: " VERSION_STRING " " __AMIGADATE__;
66 > static const char __ver[] = "$VER: " VERSION_STRING " " __DATE__;
67   static const int SCRATCH_MEM_SIZE = 65536;
68  
69  
# Line 80 | Line 85 | bool TwentyFourBitAddressing;
85  
86   // Global variables
87   extern ExecBase *SysBase;
88 + struct Library *GfxBase = NULL;
89 + struct IntuitionBase *IntuitionBase = NULL;
90   struct Library *GadToolsBase = NULL;
91 + struct Library *IFFParseBase = NULL;
92   struct Library *AslBase = NULL;
93   struct Library *P96Base = NULL;
94 + struct Library *CyberGfxBase = NULL;
95   struct Library *TimerBase = NULL;
96   struct Library *AHIBase = NULL;
97   struct Library *DiskBase = NULL;
98  
99   struct Task *MainTask;                                                  // Our task
100 < uint32 ScratchMem = NULL;                                               // Scratch memory for Mac ROM writes
100 > uint8 *ScratchMem = NULL;                                               // Scratch memory for Mac ROM writes
101   APTR OldTrapHandler = NULL;                                             // Old trap handler
102   APTR OldExceptionHandler = NULL;                                // Old exception handler
103   BYTE IRQSig = -1;                                                               // "Interrupt" signal number
# Line 106 | Line 115 | static bool stack_swapped = false;                             //
115   static StackSwapStruct stack_swap;
116  
117  
109 – // Prototypes
110 – static void jump_to_rom(void);
111 – static void tick_func(void);
112 –
113 –
118   // Assembly functions
119   struct trap_regs;
120   extern "C" void AtomicAnd(uint32 *p, uint32 val);
# Line 120 | Line 124 | extern "C" void TrapHandlerAsm(void);
124   extern "C" void ExceptionHandlerAsm(void);
125   extern "C" void IllInstrHandler(trap_regs *regs);
126   extern "C" void PrivViolHandler(trap_regs *regs);
127 + extern "C" void quit_emulator(void);
128 + extern "C" void AsmTriggerNMI(void);
129   uint16 EmulatedSR;                                      // Emulated SR (supervisor bit and interrupt mask)
130  
131  
132 + // Prototypes
133 + static void jump_to_rom(void);
134 + static void tick_func(void);
135 +
136 +
137   /*
138   *  Main program
139   */
140  
141 < int main(void)
141 > int main(int argc, char **argv)
142   {
143          // Initialize variables
144          RAMBaseHost = NULL;
# Line 141 | Line 152 | int main(void)
152          printf(GetString(STR_ABOUT_TEXT1), VERSION_MAJOR, VERSION_MINOR);
153          printf(" %s\n", GetString(STR_ABOUT_TEXT2));
154  
144 –        // Read preferences
145 –        PrefsInit();
146 –
155          // Open libraries
156 +        GfxBase = OpenLibrary((UBYTE *)"graphics.library", 39);
157 +        if (GfxBase == NULL) {
158 +                printf("Cannot open graphics.library V39.\n");
159 +                exit(1);
160 +        }
161 +        IntuitionBase = (struct IntuitionBase *)OpenLibrary((UBYTE *)"intuition.library", 39);
162 +        if (IntuitionBase == NULL) {
163 +                printf("Cannot open intuition.library V39.\n");
164 +                CloseLibrary(GfxBase);
165 +                exit(1);
166 +        }
167          DiskBase = (struct Library *)OpenResource((UBYTE *)"disk.resource");
168          if (DiskBase == NULL)
169                  QuitEmulator();
# Line 153 | Line 172 | int main(void)
172                  ErrorAlert(GetString(STR_NO_GADTOOLS_LIB_ERR));
173                  QuitEmulator();
174          }
175 +        IFFParseBase = OpenLibrary((UBYTE *)"iffparse.library", 39);
176 +        if (IFFParseBase == NULL) {
177 +                ErrorAlert(GetString(STR_NO_IFFPARSE_LIB_ERR));
178 +                QuitEmulator();
179 +        }
180          AslBase = OpenLibrary((UBYTE *)"asl.library", 36);
181          if (AslBase == NULL) {
182                  ErrorAlert(GetString(STR_NO_ASL_LIB_ERR));
183                  QuitEmulator();
184          }
185 +
186 +        // These two can fail (the respective gfx support won't be available, then)
187          P96Base = OpenLibrary((UBYTE *)"Picasso96API.library", 2);
188 +        CyberGfxBase = OpenLibrary((UBYTE *)"cybergraphics.library", 2);
189 +
190 +        // Read preferences
191 +        PrefsInit(argc, argv);
192  
193          // Open AHI
194          ahi_port = CreateMsgPort();
# Line 199 | Line 229 | int main(void)
229          TimerBase = (struct Library *)timereq->tr_node.io_Device;
230  
231          // Allocate scratch memory
232 <        ScratchMem = (uint32)AllocMem(SCRATCH_MEM_SIZE, MEMF_PUBLIC);
232 >        ScratchMem = (uint8 *)AllocMem(SCRATCH_MEM_SIZE, MEMF_PUBLIC);
233          if (ScratchMem == NULL) {
234                  ErrorAlert(GetString(STR_NO_MEM_ERR));
235                  QuitEmulator();
# Line 213 | Line 243 | int main(void)
243                  WarningAlert(GetString(STR_SMALL_RAM_WARN));
244                  RAMSize = 1024*1024;
245          }
246 <        RAMBaseHost = (uint8 *)AllocMem(RAMSize + 0x100000, MEMF_PUBLIC);
246 >        RAMBaseHost = (uint8 *)AllocVec(RAMSize + 0x100000, MEMF_PUBLIC);
247          if (RAMBaseHost == NULL) {
248 <                ErrorAlert(GetString(STR_NO_MEM_ERR));
249 <                QuitEmulator();
248 >                uint32 newRAMSize = AvailMem(MEMF_LARGEST) - 0x100000;
249 >                char xText[120];
250 >
251 >                sprintf(xText, GetString(STR_NOT_ENOUGH_MEM_WARN), RAMSize, newRAMSize);
252 >
253 >                if (ChoiceAlert(xText, "Use", "Quit") != 1)
254 >                        QuitEmulator();
255 >
256 >                RAMSize = newRAMSize;
257 >                RAMBaseHost = (uint8 *)AllocVec(RAMSize + 0x100000, MEMF_PUBLIC);
258 >                if (RAMBaseHost == NULL) {
259 >                        ErrorAlert(GetString(STR_NO_MEM_ERR));
260 >                        QuitEmulator();
261 >                }
262          }
263          RAMBaseMac = (uint32)RAMBaseHost;
264          D(bug("Mac RAM starts at %08lx\n", RAMBaseHost));
# Line 228 | Line 270 | int main(void)
270          const char *rom_path = PrefsFindString("rom");
271  
272          // Load Mac ROM
273 <        BPTR rom_fh = Open(rom_path ? (char *)rom_path : ROM_FILE_NAME, MODE_OLDFILE);
273 >        BPTR rom_fh = Open(rom_path ? (char *)rom_path : (char *)ROM_FILE_NAME, MODE_OLDFILE);
274          if (rom_fh == NULL) {
275                  ErrorAlert(GetString(STR_NO_ROM_FILE_ERR));
276                  QuitEmulator();
# Line 248 | Line 290 | int main(void)
290                  QuitEmulator();
291          }
292  
251 –        // Check ROM version
252 –        if (!CheckROM()) {
253 –                ErrorAlert(GetString(STR_UNSUPPORTED_ROM_TYPE_ERR));
254 –                QuitEmulator();
255 –        }
256 –
293          // Set CPU and FPU type
294          UWORD attn = SysBase->AttnFlags;
295          CPUType = attn & AFF_68040 ? 4 : (attn & AFF_68030 ? 3 : 2);
296          CPUIs68060 = attn & AFF_68060;
297          FPUType = attn & AFF_68881 ? 1 : 0;
298  
299 <        // Load XPRAM
300 <        XPRAMInit();
265 <
266 <        // Set boot volume
267 <        int16 i16 = PrefsFindInt16("bootdrive");
268 <        XPRAM[0x78] = i16 >> 8;
269 <        XPRAM[0x79] = i16 & 0xff;
270 <        i16 = PrefsFindInt16("bootdriver");
271 <        XPRAM[0x7a] = i16 >> 8;
272 <        XPRAM[0x7b] = i16 & 0xff;
273 <
274 <        // Init drivers
275 <        SonyInit();
276 <        DiskInit();
277 <        CDROMInit();
278 <        SCSIInit();
279 <
280 <        // Init network
281 <        EtherInit();
282 <
283 <        // Init serial ports
284 <        SerialInit();
285 <
286 <        // Init Time Manager
287 <        TimerInit();
288 <
289 <        // Init clipboard
290 <        ClipInit();
291 <
292 <        // Init audio
293 <        AudioInit();
294 <
295 <        // Init video
296 <        if (!VideoInit(ROMVersion == ROM_VERSION_64K || ROMVersion == ROM_VERSION_PLUS || ROMVersion == ROM_VERSION_CLASSIC))
299 >        // Initialize everything
300 >        if (!InitAll())
301                  QuitEmulator();
302  
299 –        // Install ROM patches
300 –        if (!PatchROM()) {
301 –                ErrorAlert(GetString(STR_UNSUPPORTED_ROM_TYPE_ERR));
302 –                QuitEmulator();
303 –        }
304 –
303          // Move VBR away from 0 if neccessary
304          MoveVBR();
305  
# Line 319 | Line 317 | int main(void)
317  
318          // Start 60Hz process
319          tick_proc = CreateNewProcTags(
320 <                NP_Entry, tick_func,
321 <                NP_Name, "Basilisk II 60Hz",
320 >                NP_Entry, (ULONG)tick_func,
321 >                NP_Name, (ULONG)"Basilisk II 60Hz",
322                  NP_Priority, 5,
323                  TAG_END
324          );
# Line 328 | Line 326 | int main(void)
326          // Set task priority to -1 so we don't use all processing time
327          SetTaskPri(MainTask, -1);
328  
329 +        WriteMacInt32(0xbff, 0);        // MacsBugFlags
330 +
331          // Swap stack to Mac RAM area
332          stack_swap.stk_Lower = RAMBaseHost;
333          stack_swap.stk_Upper = (ULONG)RAMBaseHost + RAMSize;
# Line 354 | Line 354 | void Start680x0(void)
354   *  Quit emulator (__saveds because it might be called from an exception)
355   */
356  
357 < void __saveds QuitEmulator(void)
357 > // Assembly entry point
358 > void __saveds quit_emulator(void)
359 > {
360 >        QuitEmulator();
361 > }
362 >
363 > void QuitEmulator(void)
364   {
365 +        // Stop 60Hz thread
366 +        if (tick_proc) {
367 +                SetSignal(0, SIGF_SINGLE);
368 +                tick_proc_active = false;
369 +                Wait(SIGF_SINGLE);
370 +        }
371 +
372          // Restore stack
373          if (stack_swapped) {
374                  stack_swapped = false;
# Line 369 | Line 382 | void __saveds QuitEmulator(void)
382                  FreeSignal(IRQSig);
383          }
384  
372 –        // Stop 60Hz thread
373 –        if (tick_proc) {
374 –                SetSignal(0, SIGF_SINGLE);
375 –                tick_proc_active = false;
376 –                Wait(SIGF_SINGLE);
377 –        }
378 –
385          // Remove trap handler
386          MainTask->tc_TrapCode = OldTrapHandler;
387  
388 <        // Save XPRAM
389 <        XPRAMExit();
384 <
385 <        // Exit video
386 <        VideoExit();
387 <
388 <        // Exit audio
389 <        AudioExit();
390 <
391 <        // Exit clipboard
392 <        ClipExit();
393 <
394 <        // Exit Time Manager
395 <        TimerExit();
396 <
397 <        // Exit serial ports
398 <        SerialExit();
399 <
400 <        // Exit network
401 <        EtherExit();
402 <
403 <        // Exit drivers
404 <        SCSIExit();
405 <        CDROMExit();
406 <        DiskExit();
407 <        SonyExit();
388 >        // Deinitialize everything
389 >        ExitAll();
390  
391          // Delete RAM/ROM area
392          if (RAMBaseHost)
393 <                FreeMem(RAMBaseHost, RAMSize + 0x100000);
393 >                FreeVec(RAMBaseHost);
394  
395          // Delete scratch memory area
396          if (ScratchMem)
# Line 435 | Line 417 | void __saveds QuitEmulator(void)
417          PrefsExit();
418  
419          // Close libraries
420 +        if (CyberGfxBase)
421 +                CloseLibrary(CyberGfxBase);
422          if (P96Base)
423                  CloseLibrary(P96Base);
424          if (AslBase)
425                  CloseLibrary(AslBase);
426 +        if (IFFParseBase)
427 +                CloseLibrary(IFFParseBase);
428          if (GadToolsBase)
429                  CloseLibrary(GadToolsBase);
430 +        if (IntuitionBase)
431 +                CloseLibrary((struct Library *)IntuitionBase);
432 +        if (GfxBase)
433 +                CloseLibrary(GfxBase);
434  
435          exit(0);
436   }
# Line 478 | Line 468 | void TriggerInterrupt(void)
468          Signal(MainTask, IRQSigMask);
469   }
470  
471 + void TriggerNMI(void)
472 + {
473 +        AsmTriggerNMI();
474 + }
475 +
476  
477   /*
478   *  60Hz thread
# Line 520 | Line 515 | static __saveds void tick_func(void)
515                  if (++tick_counter > 60) {
516                          tick_counter = 0;
517                          WriteMacInt32(0x20c, TimerDateTime());
518 +                        SetInterruptFlag(INTFLAG_1HZ);
519 +                        TriggerInterrupt();
520                  }
521  
522                  // Trigger 60Hz interrupt
# Line 560 | Line 557 | void ErrorAlert(const char *text)
557          req.es_Title = (UBYTE *)GetString(STR_ERROR_ALERT_TITLE);
558          req.es_TextFormat = (UBYTE *)GetString(STR_GUI_ERROR_PREFIX);
559          req.es_GadgetFormat = (UBYTE *)GetString(STR_QUIT_BUTTON);
560 <        EasyRequest(NULL, &req, NULL, text);
560 >        EasyRequest(NULL, &req, NULL, (ULONG)text);
561   }
562  
563  
# Line 580 | Line 577 | void WarningAlert(const char *text)
577          req.es_Title = (UBYTE *)GetString(STR_WARNING_ALERT_TITLE);
578          req.es_TextFormat = (UBYTE *)GetString(STR_GUI_WARNING_PREFIX);
579          req.es_GadgetFormat = (UBYTE *)GetString(STR_OK_BUTTON);
580 <        EasyRequest(NULL, &req, NULL, text);
580 >        EasyRequest(NULL, &req, NULL, (ULONG)text);
581   }
582  
583  
# Line 598 | Line 595 | bool ChoiceAlert(const char *text, const
595          req.es_Title = (UBYTE *)GetString(STR_WARNING_ALERT_TITLE);
596          req.es_TextFormat = (UBYTE *)GetString(STR_GUI_WARNING_PREFIX);
597          req.es_GadgetFormat = (UBYTE *)str;
598 <        return EasyRequest(NULL, &req, NULL, text);
598 >        return EasyRequest(NULL, &req, NULL, (ULONG)text);
599   }
600  
601  
# Line 633 | Line 630 | void __saveds IllInstrHandler(trap_regs
630                  EmulatedSR |= 0x0700;
631  
632                  // Call opcode routine
633 <                EmulOp(*(uint16 *)(r->pc), (M68kRegisters *)r);
633 >                EmulOp(opcode, (M68kRegisters *)r);
634                  r->pc += 2;
635  
636                  // Restore interrupts

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