first commit

1 files changed, 248 insertions, 0 deletions

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
+