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Just so I can play a bit without annoying f|res:)

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@2740 8ced0084-cf51-0410-be5f-012b33b47a6e
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nakeee
2009-03-23 09:10:32 +00:00
parent fc582ea560
commit 788cc73867
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156
Source/Plugins/Plugin_DSP_LLE-testing/Src/gdsp_memory.cpp Normal file
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/*====================================================================
filename: gdsp_memory.cpp
project: GCemu
created: 2004-6-18
mail: duddie@walla.com
Copyright (c) 2005 Duddie & Tratax
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
====================================================================*/
#include <stdio.h>
#include "Globals.h"
#include "gdsp_interpreter.h"
#include "gdsp_memory.h"
#include "gdsp_ifx.h"
uint16 dsp_swap16(uint16 x)
{
return((x >> 8) | (x << 8));
}
uint16* gdsp_get_iram(void)
{
return(g_dsp.iram);
}
uint16* gdsp_get_irom(void)
{
return(g_dsp.irom);
}
uint16* gdsp_get_dram(void)
{
return(g_dsp.dram);
}
uint16* gdsp_get_drom(void)
{
return(g_dsp.drom);
}
uint16 dsp_imem_read(uint16 addr)
{
uint16 opc;
if (g_dsp.pc & 0x8000)
{
opc = g_dsp.irom[addr & DSP_IROM_MASK];
}
else
{
opc = g_dsp.iram[addr & DSP_IRAM_MASK];
}
return(dsp_swap16(opc));
}
uint16 dsp_dmem_read(uint16 addr)
{
uint16 val;
switch (addr >> 12)
{
case 0x0: // 0xxx DRAM
val = g_dsp.dram[addr & DSP_DRAM_MASK];
val = dsp_swap16(val);
break;
case 0x8: // 8xxx DROM
DEBUG_LOG(DSPHLE, "someone reads from ROM\n");
val = g_dsp.drom[addr & DSP_DROM_MASK];
val = dsp_swap16(val);
break;
case 0x1: // 1xxx COEF
val = g_dsp.coef[addr & DSP_DROM_MASK];
val = dsp_swap16(val);
break;
case 0xf: // Fxxx HW regs
val = gdsp_ifx_read(addr);
break;
default: // error
// ERROR_LOG(DSPHLE, "%04x DSP ERROR: Read from UNKNOWN (%04x) memory\n", g_dsp.pc, addr);
val = 0;
break;
}
return(val);
}
bool dsp_dmem_write(uint16 addr, uint16 val)
{
switch (addr >> 12)
{
case 0x8: // 8xxx DROM
DEBUG_LOG(DSPHLE, "someone writes to ROM\n");
/* val = dsp_swap16(val);
g_dsp.drom[addr & DSP_DROM_MASK] = val;*/
break;
case 0xf: // Fxxx HW regs
gdsp_ifx_write(addr, val);
break;
case 0x0: // 0xxx DRAM
val = dsp_swap16(val);
g_dsp.dram[addr & DSP_DRAM_MASK] = val;
break;
default: // error
DEBUG_LOG(DSPHLE, "%04x DSP ERROR: Write to UNKNOWN (%04x) memory\n", g_dsp.pc, addr);
break;
}
return(true);
}
uint16 dsp_fetch_code(void)
{
uint16 opc = dsp_imem_read(g_dsp.pc);
g_dsp.pc++;
return(opc);
}
uint16 dsp_peek_code(void)
{
return(dsp_imem_read(g_dsp.pc));
}