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/* |
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* emul_op.cpp - 68k opcodes for ROM patches |
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* |
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* Basilisk II (C) 1997-1999 Christian Bauer |
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* Basilisk II (C) 1997-2000 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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r->a[0], r->a[1], r->a[2], r->a[3], r->a[4], r->a[5], r->a[6], r->a[7], |
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r->sr); |
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#if ENABLE_MON |
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char *arg[2]; |
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arg[0] = "rmon"; |
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arg[1] = NULL; |
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char *arg[2] = {"rmon", NULL}; |
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mon(1, arg); |
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#endif |
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QuitEmulator(); |
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D(bug("*** RESET ***\n")); |
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TimerReset(); |
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EtherReset(); |
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AudioReset(); |
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|
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// Create BootGlobs at top of memory |
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memset((void *)(RAMBaseHost + RAMSize - 4096), 0, 4096); |
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Mac_memset(RAMBaseMac + RAMSize - 4096, 0, 4096); |
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uint32 boot_globs = RAMBaseMac + RAMSize - 0x1c; |
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WriteMacInt32(boot_globs + 0x00, RAMBaseMac); // First RAM bank |
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WriteMacInt32(boot_globs + 0x04, RAMSize); |
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break; |
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} |
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|
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case M68K_EMUL_OP_MEMORY_DISPATCH: { // MemoryDispatch() replacement routine |
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int16 sel = r->d[0]; |
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D(bug("MemoryDispatch(%d)\n", sel)); |
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switch (sel) { |
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case -6: // GetLogicalRAMSize |
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r->d[0] = RAMSize; |
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break; |
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case -3: |
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r->d[0] = 0x1000; |
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break; |
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case 0: // HoldMemory |
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case 1: // UnholdMemory |
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case 2: // LockMemory |
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case 3: // UnlockMemory |
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case 4: // LockMemoryContiguous |
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case 6: // ProtectMemory |
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case 7: // UnprotectMemory |
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r->d[0] = 0; |
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break; |
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default: |
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printf("FATAL: MemoryDispatch(%d): illegal selector\n", sel); |
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r->d[0] = (uint32)-502; |
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break; |
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} |
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break; |
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} |
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|
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case M68K_EMUL_OP_IRQ: // Level 1 interrupt |
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r->d[0] = 0; |
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if (InterruptFlags & INTFLAG_60HZ) { |
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ClearInterruptFlag(INTFLAG_60HZ); |
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if (HasMacStarted()) { |
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ADBInterrupt(); |
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TimerInterrupt(); |
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VideoInterrupt(); |
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SonyInterrupt(); |
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DiskInterrupt(); |
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CDROMInterrupt(); |
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|
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// Call DoVBLTask(0) |
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if (ROMVersion == ROM_VERSION_32) { |
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r->d[0] = 1; // Flag: 68k interrupt routine executes VBLTasks etc. |
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} |
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} |
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if (InterruptFlags & INTFLAG_1HZ) { |
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ClearInterruptFlag(INTFLAG_1HZ); |
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|
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if (HasMacStarted()) { |
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SonyInterrupt(); |
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DiskInterrupt(); |
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CDROMInterrupt(); |
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} |
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} |
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|
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if (InterruptFlags & INTFLAG_SERIAL) { |
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ClearInterruptFlag(INTFLAG_SERIAL); |
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SerialInterrupt(); |
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} |
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if (InterruptFlags & INTFLAG_ETHER) { |
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ClearInterruptFlag(INTFLAG_ETHER); |
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EtherInterrupt(); |
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} |
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if (InterruptFlags & INTFLAG_AUDIO) { |
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ClearInterruptFlag(INTFLAG_AUDIO); |
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AudioInterrupt(); |
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r->d[0], r->d[1], r->d[2], r->d[3], r->d[4], r->d[5], r->d[6], r->d[7], |
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r->a[0], r->a[1], r->a[2], r->a[3], r->a[4], r->a[5], r->a[6], r->a[7], |
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r->sr); |
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#if ENABLE_MON |
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char *arg[2] = {"rmon", NULL}; |
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mon(1, arg); |
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#endif |
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QuitEmulator(); |
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break; |
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} |
