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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) 1997-2000 Christian Bauer |
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* Basilisk II (C) 1997-2005 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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switch (opcode) { |
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case M68K_EMUL_BREAK: { // Breakpoint |
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printf("*** Breakpoint\n"); |
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printf("d0 %08lx d1 %08lx d2 %08lx d3 %08lx\n" |
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"d4 %08lx d5 %08lx d6 %08lx d7 %08lx\n" |
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"a0 %08lx a1 %08lx a2 %08lx a3 %08lx\n" |
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"a4 %08lx a5 %08lx a6 %08lx a7 %08lx\n" |
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printf("d0 %08x d1 %08x d2 %08x d3 %08x\n" |
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"d4 %08x d5 %08x d6 %08x d7 %08x\n" |
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"a0 %08x a1 %08x a2 %08x a3 %08x\n" |
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"a4 %08x a5 %08x a6 %08x a7 %08x\n" |
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"sr %04x\n", |
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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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VideoQuitFullScreen(); |
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#ifdef ENABLE_MON |
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char *arg[4] = {"mon", "-m", "-r", NULL}; |
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mon(3, arg); |
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r.a[0] = PutScrapPatch; |
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Execute68kTrap(0xa647, &r); // SetToolTrap() |
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|
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// Install GetScrap() patch |
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if (GetScrapPatch) { |
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r.d[0] = 0xa9fd; |
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r.a[0] = GetScrapPatch; |
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Execute68kTrap(0xa647, &r); // SetToolTrap() |
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} |
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|
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// Setup fake ASC registers |
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if (ROMVersion == ROM_VERSION_32) { |
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r.d[0] = 0x1000; |
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if (InterruptFlags & INTFLAG_60HZ) { |
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ClearInterruptFlag(INTFLAG_60HZ); |
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|
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// Increment Ticks variable |
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WriteMacInt32(0x16a, ReadMacInt32(0x16a) + 1); |
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|
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if (HasMacStarted()) { |
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// Mac has started, execute all 60Hz interrupt functions |
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ADBInterrupt(); |
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TimerInterrupt(); |
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VideoInterrupt(); |
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if (InterruptFlags & INTFLAG_1HZ) { |
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ClearInterruptFlag(INTFLAG_1HZ); |
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if (HasMacStarted()) { |
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SonyInterrupt(); |
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DiskInterrupt(); |
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AudioInterrupt(); |
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} |
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if (InterruptFlags & INTFLAG_ADB) { |
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ClearInterruptFlag(INTFLAG_ADB); |
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if (HasMacStarted()) |
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ADBInterrupt(); |
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} |
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|
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if (InterruptFlags & INTFLAG_NMI) { |
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ClearInterruptFlag(INTFLAG_NMI); |
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if (HasMacStarted()) { |
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if (HasMacStarted()) |
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TriggerNMI(); |
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} |
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} |
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break; |
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break; |
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} |
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case M68K_EMUL_OP_GET_SCRAP: { // GetScrap() patch |
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void **scrap_handle = (void **)Mac2HostAddr(ReadMacInt32(r->a[7] + 4)); |
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uint32 type = ReadMacInt32(r->a[7] + 8); |
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int32 length = ReadMacInt32(r->a[7] + 12); |
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GetScrap(scrap_handle, type, length); |
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break; |
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} |
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|
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case M68K_EMUL_OP_CHECKLOAD: { // vCheckLoad() patch (resource loader) |
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uint32 type = r->d[1]; |
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int16 id = ReadMacInt16(r->a[2]); |
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break; |
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#endif |
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case M68K_EMUL_OP_BLOCK_MOVE: // BlockMove() replacement |
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memmove(Mac2HostAddr(r->a[1]), Mac2HostAddr(r->a[0]), r->d[0]); |
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case M68K_EMUL_OP_BLOCK_MOVE: // BlockMove() cache flushing |
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FlushCodeCache(Mac2HostAddr(r->a[0]), r->a[1]); |
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break; |
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case M68K_EMUL_OP_DEBUGUTIL: |
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default: |
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printf("FATAL: EMUL_OP called with bogus opcode %08x\n", opcode); |
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printf("d0 %08lx d1 %08lx d2 %08lx d3 %08lx\n" |
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"d4 %08lx d5 %08lx d6 %08lx d7 %08lx\n" |
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"a0 %08lx a1 %08lx a2 %08lx a3 %08lx\n" |
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"a4 %08lx a5 %08lx a6 %08lx a7 %08lx\n" |
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printf("d0 %08x d1 %08x d2 %08x d3 %08x\n" |
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"d4 %08x d5 %08x d6 %08x d7 %08x\n" |
562 |
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"a0 %08x a1 %08x a2 %08x a3 %08x\n" |
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"a4 %08x a5 %08x a6 %08x a7 %08x\n" |
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"sr %04x\n", |
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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], |