From d40ae99422e118188a7f48055dc340c6aca022aa Mon Sep 17 00:00:00 2001 From: Kitty Draper Date: Sat, 5 Mar 2011 21:39:25 -0500 Subject: first commit --- source/apumem.h | 248 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 248 insertions(+) create mode 100644 source/apumem.h (limited to 'source/apumem.h') diff --git a/source/apumem.h b/source/apumem.h new file mode 100644 index 0000000..8f6dfa4 --- /dev/null +++ b/source/apumem.h @@ -0,0 +1,248 @@ +/******************************************************************************* + 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. +*******************************************************************************/ + +#ifndef _apumemory_h_ +#define _apumemory_h_ + +START_EXTERN_C +extern uint8 W4; +extern uint8 APUROM[64]; +END_EXTERN_C + +INLINE uint8 S9xAPUGetByteZ (uint8 Address) +{ + if (Address >= 0xf0 && IAPU.DirectPage == IAPU.RAM) + { + if (Address >= 0xf4 && Address <= 0xf7) + { +#ifdef SPC700_SHUTDOWN + IAPU.WaitAddress2 = IAPU.WaitAddress1; + IAPU.WaitAddress1 = IAPU.PC; +#endif + return (IAPU.RAM [Address]); + } + if (Address >= 0xfd) + { +#ifdef SPC700_SHUTDOWN + IAPU.WaitAddress2 = IAPU.WaitAddress1; + IAPU.WaitAddress1 = IAPU.PC; +#endif + uint8 t = IAPU.RAM [Address]; + IAPU.RAM [Address] = 0; + return (t); + } + else + if (Address == 0xf3) + return (S9xGetAPUDSP ()); + + return (IAPU.RAM [Address]); + } + else + return (IAPU.DirectPage [Address]); +} + +INLINE void S9xAPUSetByteZ (uint8 byte, uint8 Address) +{ + if (Address >= 0xf0 && IAPU.DirectPage == IAPU.RAM) + { + if (Address == 0xf3) + S9xSetAPUDSP (byte); + else + if (Address >= 0xf4 && Address <= 0xf7) + APU.OutPorts [Address - 0xf4] = byte; + else + if (Address == 0xf1) + S9xSetAPUControl (byte); + else + if (Address < 0xfd) + { + IAPU.RAM [Address] = byte; + if (Address >= 0xfa) + { + if (byte == 0) + APU.TimerTarget [Address - 0xfa] = 0x100; + else + APU.TimerTarget [Address - 0xfa] = byte; + } + } + } + else + IAPU.DirectPage [Address] = byte; +} + +INLINE uint8 S9xAPUGetByte (uint32 Address) +{ + Address &= 0xffff; + + if (Address <= 0xff && Address >= 0xf0) + { + if (Address >= 0xf4 && Address <= 0xf7) + { +#ifdef SPC700_SHUTDOWN + IAPU.WaitAddress2 = IAPU.WaitAddress1; + IAPU.WaitAddress1 = IAPU.PC; +#endif + return (IAPU.RAM [Address]); + } + else + if (Address == 0xf3) + return (S9xGetAPUDSP ()); + if (Address >= 0xfd) + { +#ifdef SPC700_SHUTDOWN + IAPU.WaitAddress2 = IAPU.WaitAddress1; + IAPU.WaitAddress1 = IAPU.PC; +#endif + uint8 t = IAPU.RAM [Address]; + IAPU.RAM [Address] = 0; + return (t); + } + return (IAPU.RAM [Address]); + } + else + return (IAPU.RAM [Address]); +} + +INLINE void S9xAPUSetByte (uint8 byte, uint32 Address) +{ + Address &= 0xffff; + + if (Address <= 0xff && Address >= 0xf0) + { + if (Address == 0xf3) + S9xSetAPUDSP (byte); + else + if (Address >= 0xf4 && Address <= 0xf7) + APU.OutPorts [Address - 0xf4] = byte; + else + if (Address == 0xf1) + S9xSetAPUControl (byte); + else + if (Address < 0xfd) + { + IAPU.RAM [Address] = byte; + if (Address >= 0xfa) + { + if (byte == 0) + APU.TimerTarget [Address - 0xfa] = 0x100; + else + APU.TimerTarget [Address - 0xfa] = byte; + } + } + } + else + { +#if 0 +if (Address >= 0x2500 && Address <= 0x2504) +printf ("%06d %04x <- %02x\n", ICPU.Scanline, Address, byte); +if (Address == 0x26c6) +{ + extern FILE *apu_trace; + extern FILE *trace; + APU.Flags |= TRACE_FLAG; + CPU.Flags |= TRACE_FLAG; + if (apu_trace == NULL) + apu_trace = fopen ("aputrace.log", "wb"); + if (trace == NULL) + trace = fopen ("trace.log", "wb"); + printf ("TRACING SWITCHED ON\n"); +} +#endif + if (Address < 0xffc0) + IAPU.RAM [Address] = byte; + else + { + APU.ExtraRAM [Address - 0xffc0] = byte; + if (!APU.ShowROM) + IAPU.RAM [Address] = byte; + } + } +} +#endif + -- cgit v1.2.3