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Diffstat (limited to 'source/obc1.cpp')
| -rw-r--r-- | source/obc1.cpp | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/source/obc1.cpp b/source/obc1.cpp deleted file mode 100644 index 763e7cc..0000000 --- a/source/obc1.cpp +++ /dev/null @@ -1,204 +0,0 @@ -/**************************************************** - Snes9x - Portable Super Nintendo Entertainment System (TM) emulator. - - (c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com) and - Jerremy Koot (jkoot@snes9x.com) - - (c) Copyright 2001 - 2004 John Weidman (jweidman@slip.net) - - (c) Copyright 2002 - 2004 Brad Jorsch (anomie@users.sourceforge.net), - funkyass (funkyass@spam.shaw.ca), - Joel Yliluoma (http://iki.fi/bisqwit/) - Kris Bleakley (codeviolation@hotmail.com), - Matthew Kendora, - Nach (n-a-c-h@users.sourceforge.net), - Peter Bortas (peter@bortas.org) and - zones (kasumitokoduck@yahoo.com) - - C4 x86 assembler and some C emulation code - (c) Copyright 2000 - 2003 zsKnight (zsknight@zsnes.com), - _Demo_ (_demo_@zsnes.com), and Nach - - C4 C++ code - (c) Copyright 2003 Brad Jorsch - - DSP-1 emulator code - (c) Copyright 1998 - 2004 Ivar (ivar@snes9x.com), _Demo_, Gary Henderson, - John Weidman, neviksti (neviksti@hotmail.com), - Kris Bleakley, Andreas Naive - - DSP-2 emulator code - (c) Copyright 2003 Kris Bleakley, John Weidman, neviksti, Matthew Kendora, and - Lord Nightmare (lord_nightmare@users.sourceforge.net - - OBC1 emulator code - (c) Copyright 2001 - 2004 zsKnight, pagefault (pagefault@zsnes.com) and - Kris Bleakley - Ported from x86 assembler to C by sanmaiwashi - - SPC7110 and RTC C++ emulator code - (c) Copyright 2002 Matthew Kendora with research by - zsKnight, John Weidman, and Dark Force - - S-DD1 C emulator code - (c) Copyright 2003 Brad Jorsch with research by - Andreas Naive and John Weidman - - S-RTC C emulator code - (c) Copyright 2001 John Weidman - - ST010 C++ emulator code - (c) Copyright 2003 Feather, Kris Bleakley, John Weidman and Matthew Kendora - - Super FX x86 assembler emulator code - (c) Copyright 1998 - 2003 zsKnight, _Demo_, and pagefault - - Super FX C emulator code - (c) Copyright 1997 - 1999 Ivar, Gary Henderson and John Weidman - - - SH assembler code partly based on x86 assembler code - (c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se) - - - Specific ports contains the works of other authors. See headers in - individual files. - - Snes9x homepage: http://www.snes9x.com - - Permission to use, copy, modify and distribute Snes9x in both binary and - source form, for non-commercial purposes, is hereby granted without fee, - providing that this license information and copyright notice appear with - all copies and any derived work. - - This software is provided 'as-is', without any express or implied - warranty. In no event shall the authors be held liable for any damages - arising from the use of this software. - - Snes9x is freeware for PERSONAL USE only. Commercial users should - seek permission of the copyright holders first. Commercial use includes - charging money for Snes9x or software derived from Snes9x. - - The copyright holders request that bug fixes and improvements to the code - should be forwarded to them so everyone can benefit from the modifications - in future versions. - - Super NES and Super Nintendo Entertainment System are trademarks of - Nintendo Co., Limited and its subsidiary companies. -*******************************************************************************/ -#include <string.h> -#include "memmap.h" -#include "obc1.h" - -static uint8 *OBC1_RAM = NULL; - -int OBC1_Address; -int OBC1_BasePtr; -int OBC1_Shift; - -extern "C" -{ -uint8 GetOBC1 (uint16 Address) -{ - switch(Address) { - case 0x7ff0: - return OBC1_RAM[OBC1_BasePtr + (OBC1_Address << 2)]; - - case 0x7ff1: - return OBC1_RAM[OBC1_BasePtr + (OBC1_Address << 2) + 1]; - - case 0x7ff2: - return OBC1_RAM[OBC1_BasePtr + (OBC1_Address << 2) + 2]; - - case 0x7ff3: - return OBC1_RAM[OBC1_BasePtr + (OBC1_Address << 2) + 3]; - - case 0x7ff4: - return OBC1_RAM[OBC1_BasePtr + (OBC1_Address >> 2) + 0x200]; - } - - return OBC1_RAM[Address & 0x1fff]; -} - -void SetOBC1 (uint8 Byte, uint16 Address) -{ - switch(Address) { - case 0x7ff0: - { - OBC1_RAM[OBC1_BasePtr + (OBC1_Address << 2)] = Byte; - break; - } - - case 0x7ff1: - { - OBC1_RAM[OBC1_BasePtr + (OBC1_Address << 2) + 1] = Byte; - break; - } - - case 0x7ff2: - { - OBC1_RAM[OBC1_BasePtr + (OBC1_Address << 2) + 2] = Byte; - break; - } - - case 0x7ff3: - { - OBC1_RAM[OBC1_BasePtr + (OBC1_Address << 2) + 3] = Byte; - break; - } - - case 0x7ff4: - { - unsigned char Temp; - - Temp = OBC1_RAM[OBC1_BasePtr + (OBC1_Address >> 2) + 0x200]; - Temp = (Temp & ~(3 << OBC1_Shift)) | ((Byte & 3) << OBC1_Shift); - OBC1_RAM[OBC1_BasePtr + (OBC1_Address >> 2) + 0x200] = Temp; - break; - } - - case 0x7ff5: - { - if (Byte & 1) - OBC1_BasePtr = 0x1800; - else - OBC1_BasePtr = 0x1c00; - - OBC1_RAM[0x1ff5] = Byte; - break; - } - - case 0x7ff6: - { - OBC1_Address = Byte & 0x7f; - OBC1_Shift = (Byte & 3) << 1; - break; - } - - default: - OBC1_RAM[Address & 0x1fff] = Byte; - break; - } -} - -uint8 *GetBasePointerOBC1(uint32 Address) -{ - return Memory.FillRAM; -} - -uint8 *GetMemPointerOBC1(uint32 Address) -{ - return (Memory.FillRAM + (Address & 0xffff)); -} - -void ResetOBC1() -{ - OBC1_Address = 0; - OBC1_BasePtr = 0x1c00; - OBC1_Shift = 0; - OBC1_RAM = &Memory.FillRAM[0x6000]; - - memset(OBC1_RAM, 0x00, 0x2000); -} - -} |