dolphin/Source/Plugins/Plugin_DSP_LLE/Src/gdsp_interpreter.h

131 lines
3.4 KiB
C

// Copyright (C) 2003-2009 Dolphin Project.
// 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, version 2.0.
// 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 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
/*====================================================================
filename: gdsp_interpreter.h
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.
====================================================================*/
#ifndef _GDSP_INTERPRETER_H
#define _GDSP_INTERPRETER_H
#include "Globals.h"
#define DSP_IRAM_BYTE_SIZE 0x2000
#define DSP_IRAM_SIZE 0x1000
#define DSP_IRAM_MASK 0x0fff
#define DSP_IROM_BYTE_SIZE 0x2000
#define DSP_IROM_SIZE 0x1000
#define DSP_IROM_MASK 0x0fff
#define DSP_DRAM_BYTE_SIZE 0x2000
#define DSP_DRAM_SIZE 0x1000
#define DSP_DRAM_MASK 0x0fff
#define DSP_COEF_BYTE_SIZE 0x2000
#define DSP_COEF_SIZE 0x1000
#define DSP_COEF_MASK 0x0fff
#define DSP_RESET_VECTOR 0x8000
#define DSP_STACK_DEPTH 0x20
#define DSP_STACK_MASK 0x1f
#define DSP_CR_IMEM 2
#define DSP_CR_DMEM 0
#define DSP_CR_TO_CPU 1
#define DSP_CR_FROM_CPU 0
struct SDSP
{
u16 r[32];
u16 pc;
#if PROFILE
u16 err_pc;
#endif
u16* iram;
u16* dram;
u16* irom;
u16* coef;
u8* cpu_ram;
u16 cr;
u8 reg_stack_ptr[4];
u8 exceptions; // pending exceptiosn?
// lets make stack depth to 32 for now
u16 reg_stack[4][DSP_STACK_DEPTH];
void (* irq_request)(void);
// for debugger only
bool dump_imem;
u32 iram_crc;
u64 step_counter;
bool exception_in_progress_hack;
};
extern SDSP g_dsp;
void gdsp_init();
void gdsp_reset();
void gdsp_shutdown();
bool gdsp_load_irom(const char *fname);
bool gdsp_load_coef(const char *fname);
// steps through DSP code, returns false if error occured
void gdsp_step();
void gdsp_loop_step();
void gdsp_run();
void gdsp_run_cycles(int cycles);
void gdsp_stop();
void gdsp_write_cr(u16 val);
u16 gdsp_read_cr(void);
u16* gdsp_get_iram(void);
u16* gdsp_get_irom(void);
u16* gdsp_get_dram(void);
u16* gdsp_get_drom(void);
// sets a flag in the pending exception register.
void gdsp_generate_exception(u8 level);
#endif