forked from Ports/goldeneye-pc-port
James Dansereau
6938d5644d
Both were already documented as standing repo content (AGENTS.md's critical-files table, several findings.md entries citing D194/D300's ground truth) but never actually committed -- add them so the repo matches what's already written about it. GPLv2, read-only reference, never compiled as part of this build (see reference/mouse-injector/README.md for provenance).
101 lines
4.3 KiB
C
101 lines
4.3 KiB
C
//==========================================================================
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// Mouse Injector Plugin
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//==========================================================================
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// Copyright (C) 2016-2021 Carnivorous
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// All rights reserved.
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//
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// Mouse Injector is free software; you can redistribute it and/or modify it
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// under the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 of the License, or (at your option)
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// any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// 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, visit http://www.gnu.org/licenses/gpl-2.0.html
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//==========================================================================
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#define LOAD_SHALF_PARAM(param) *(short *) ((unsigned char *)rdramptr[(((param) >> 12))] + (((param) & 0x00000FFF) ^ 2))
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#define LOAD_SWORD_PARAM(param) *(int *)((unsigned char *)rdramptr[(((param) >> 12))] + (((param) & 0x00000FFF)))
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#define LOAD_UWORD_PARAM(param) *(unsigned int *)((unsigned char *)rdramptr[(((param) >> 12))] + (((param) & 0x00000FFF)))
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#define WITHINRANGE(param) ((rdramptr != 0) && ((param & 0xFF800000U) == 0x80000000U))
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#define GARBAGESHORT (short)0xABAD
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#define GARBAGEINT (int)0xABADC0DE
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//==========================================================================
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// Purpose: read short from memory
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// Parameter: address
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//==========================================================================
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static inline short EMU_ReadShort(const unsigned int addr)
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{
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if(WITHINRANGE(addr))
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return LOAD_SHALF_PARAM(addr);
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return GARBAGESHORT;
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}
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//==========================================================================
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// Purpose: write short to memory location
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// Parameter: address, value
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//==========================================================================
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static inline void EMU_WriteShort(const unsigned int addr, const short value)
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{
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if(WITHINRANGE(addr))
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LOAD_SHALF_PARAM(addr) = value;
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}
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//==========================================================================
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// Purpose: read int from memory
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// Parameter: address
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//==========================================================================
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static inline int EMU_ReadInt(const unsigned int addr)
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{
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if(WITHINRANGE(addr))
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return LOAD_SWORD_PARAM(addr);
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return GARBAGEINT;
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}
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//==========================================================================
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// Purpose: write int to memory location
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// Parameter: address, value
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//==========================================================================
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static inline void EMU_WriteInt(const unsigned int addr, const int value)
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{
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if(WITHINRANGE(addr))
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LOAD_SWORD_PARAM(addr) = value;
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}
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//==========================================================================
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// Purpose: read float from memory
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// Parameter: address
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//==========================================================================
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static inline float EMU_ReadFloat(const unsigned int addr)
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{
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if(WITHINRANGE(addr))
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return *((float *)&LOAD_UWORD_PARAM(addr));
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return GARBAGEINT;
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}
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//==========================================================================
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// Purpose: write float to memory location
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// Parameter: address, value
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//==========================================================================
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static inline void EMU_WriteFloat(const unsigned int addr, const float value)
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{
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if(WITHINRANGE(addr))
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LOAD_UWORD_PARAM(addr) = *(unsigned int *)(&value);
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}
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//==========================================================================
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// Purpose: read int from emulator's copy of rom
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// Parameter: address
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//==========================================================================
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static inline unsigned EMU_ReadROM(const unsigned int addr)
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{
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return (unsigned)romptr[addr / 0x4];
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}
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//==========================================================================
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// Purpose: write to emulator's copy of rom
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// Parameter: address, value
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//==========================================================================
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static inline void EMU_WriteROM(const unsigned int addr, const unsigned int value)
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{
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if(romptr != 0)
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romptr[addr / 0x4] = (void *)value;
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} |