/*
* Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
*
* (c) Copyright 1996 - 2001 Gary Henderson (gary.henderson@ntlworld.com) and
* Jerremy Koot (jkoot@snes9x.com)
*
* Super FX C emulator code
* (c) Copyright 1997 - 1999 Ivar (ivar@snes9x.com) and
* Gary Henderson.
* Super FX assembler emulator code (c) Copyright 1998 zsKnight and _Demo_.
*
* DSP1 emulator code (c) Copyright 1998 Ivar, _Demo_ and Gary Henderson.
* C4 asm and some C emulation code (c) Copyright 2000 zsKnight and _Demo_.
* C4 C code (c) Copyright 2001 Gary Henderson (gary.henderson@ntlworld.com).
*
* DOS port code 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 val, uint8 Address)
{
if (Address >= 0xf0 && IAPU.DirectPage == IAPU.RAM)
{
if (Address == 0xf3)
S9xSetAPUDSP (val);
else
if (Address >= 0xf4 && Address <= 0xf7)
APU.OutPorts [Address - 0xf4] = val;
else
if (Address == 0xf1)
S9xSetAPUControl (val);
else
if (Address < 0xfd)
{
IAPU.RAM [Address] = val;
if (Address >= 0xfa)
{
if (val == 0)
APU.TimerTarget [Address - 0xfa] = 0x100;
else
APU.TimerTarget [Address - 0xfa] = val;
}
}
}
else
IAPU.DirectPage [Address] = val;
}
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 val, uint32 Address)
{
Address &= 0xffff;
if (Address <= 0xff && Address >= 0xf0)
{
if (Address == 0xf3)
S9xSetAPUDSP (val);
else
if (Address >= 0xf4 && Address <= 0xf7)
APU.OutPorts [Address - 0xf4] = val;
else
if (Address == 0xf1)
S9xSetAPUControl (val);
else
if (Address < 0xfd)
{
IAPU.RAM [Address] = val;
if (Address >= 0xfa)
{
if (val == 0)
APU.TimerTarget [Address - 0xfa] = 0x100;
else
APU.TimerTarget [Address - 0xfa] = val;
}
}
}
else
{
#if 0
if (Address >= 0x2500 && Address <= 0x2504)
printf ("%06d %04x <- %02x\n", ICPU.Scanline, Address, val);
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] = val;
else
{
APU.ExtraRAM [Address - 0xffc0] = val;
if (!APU.ShowROM)
IAPU.RAM [Address] = val;
}
}
}
#endif
