aboutsummaryrefslogtreecommitdiff
path: root/source/seta011.c
diff options
context:
space:
mode:
Diffstat (limited to 'source/seta011.c')
-rw-r--r--source/seta011.c232
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;
+ }
+ }
+}
+