forked from dolphin-emu/dolphin
ecbfec2a13
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@2484 8ced0084-cf51-0410-be5f-012b33b47a6e
64 lines
1.7 KiB
C++
64 lines
1.7 KiB
C++
// Copyright (C) 2003-2008 Dolphin Project.
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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, version 2.0.
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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 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#include "Common.h"
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#include "BPMemory.h"
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//BP state
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// STATE_TO_SAVE
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BPMemory bpmem;
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// The plugin must implement this.
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void BPWritten(int addr, int changes, int newval);
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// Call browser: OpcodeDecoding.cpp ExecuteDisplayList > Decode() > LoadBPReg()
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void LoadBPReg(u32 value0)
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{
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//handle the mask register
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int opcode = value0 >> 24;
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int oldval = ((u32*)&bpmem)[opcode];
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int newval = (oldval & ~bpmem.bpMask) | (value0 & bpmem.bpMask);
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int changes = (oldval ^ newval) & 0xFFFFFF;
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//reset the mask register
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if (opcode != 0xFE)
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bpmem.bpMask = 0xFFFFFF;
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BPWritten(opcode, changes, newval);
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}
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// Called when loading a saved state.
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// Needs more testing though.
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void BPReload()
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{
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for (int i = 0; i < 254; i++)
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{
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switch (i) {
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case 0x41:
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case 0x45: //GXSetDrawDone
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case 0x52:
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case 0x65:
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case 0x67: // set gp metric?
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case BPMEM_PE_TOKEN_ID:
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case BPMEM_PE_TOKEN_INT_ID:
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// Cases in which we DON'T want to reload the BP
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continue;
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default:
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BPWritten(i, 0xFFFFFF, ((u32*)&bpmem)[i]);
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}
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}
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}
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