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Diffstat (limited to 'source/seta011.c')
| -rw-r--r-- | source/seta011.c | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/source/seta011.c b/source/seta011.c new file mode 100644 index 0000000..b8fd213 --- /dev/null +++ b/source/seta011.c @@ -0,0 +1,232 @@ +/******************************************************************************* + 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 <stdio.h> +#include "seta.h" +#include "memmap.h" + +ST011_Regs ST011; + +// shougi playboard +uint8 board[9][9]; + +// debug +static int line = 0; + +uint8 S9xGetST011(uint32 Address) +{ + uint8 t; + uint16 address = (uint16) Address & 0xFFFF; + + // line counter + line++; + + // status check + if (address == 0x01) + { + t = 0xFF; + } + // read directly from s-ram + else + { + t = Memory.SRAM[address]; + } + + // debug +// if(address<0x150) +// printf( "ST011 R: %06X %02X\n", Address, t); + + return t; +} + +void S9xSetST011(uint32 Address, uint8 Byte) +{ + uint16 address = (uint16) Address & 0xFFFF; + static bool reset = false; + + // debug + line++; + + if(!reset) + { + // bootup values + ST011.waiting4command = true; + reset = true; + } + + // debug +// if(address<0x150) +// printf( "ST011 W: %06X %02X\n", Address, Byte ); + + Memory.SRAM[address]=Byte; + + // op commands/data goes through this address + if(address==0x00) + { + // check for new commands + if (ST011.waiting4command) + { + ST011.waiting4command = false; + ST011.command = Byte; + ST011.in_index = 0; + ST011.out_index = 0; + switch(ST011.command) + { + case 0x01: ST011.in_count = 12*10+8; break; + case 0x02: ST011.in_count = 4; break; + case 0x04: ST011.in_count = 0; break; + case 0x05: ST011.in_count = 0; break; + case 0x06: ST011.in_count = 0; break; + case 0x07: ST011.in_count = 0; break; + case 0x0E: ST011.in_count = 0; break; + default: ST011.waiting4command=true; break; + } + } + else + { + ST011.parameters [ST011.in_index] = Byte; + ST011.in_index++; + } + } + + if (ST011.in_count==ST011.in_index) + { + // Actually execute the command + ST011.waiting4command = true; + ST011.out_index = 0; + switch (ST011.command) + { + // unknown: download playboard + case 0x01: + { + // 9x9 board data: top to bottom, left to right + // Values represent piece types and ownership + for( int lcv=0; lcv<9; lcv++ ) + memcpy( board[lcv], ST011.parameters+lcv*10, 9*1 ); + } + break; + + // unknown + case 0x02: break; + + // unknown + case 0x04: + { + // outputs + Memory.SRAM[0x12C] = 0x00; + //Memory.SRAM[0x12D] = 0x00; + Memory.SRAM[0x12E] = 0x00; + } + break; + + // unknown + case 0x05: + { + // outputs + Memory.SRAM[0x12C] = 0x00; + //Memory.SRAM[0x12D] = 0x00; + Memory.SRAM[0x12E] = 0x00; + } + break; + + // unknown + case 0x06: break; + case 0x07: break; + + // unknown + case 0x0E: + { + // outputs + Memory.SRAM[0x12C] = 0x00; + Memory.SRAM[0x12D] = 0x00; + } + break; + } + } +} + |