95 lines
2.5 KiB
C
95 lines
2.5 KiB
C
/*====================================================================
|
|
|
|
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_SIZE (0x1000)
|
|
#define DSP_IRAM_MASK (0x0fff)
|
|
#define DSP_IROM_SIZE (0x1000)
|
|
#define DSP_IROM_MASK (0x0fff)
|
|
#define DSP_DRAM_SIZE (0x1000)
|
|
#define DSP_DRAM_MASK (0x0fff)
|
|
#define DSP_DROM_SIZE (0x1000)
|
|
#define DSP_DROM_MASK (0x0fff)
|
|
#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
|
|
|
|
struct SDSP
|
|
{
|
|
static uint16 r[32];
|
|
static uint16 pc;
|
|
static uint16 err_pc;
|
|
static uint16* iram;
|
|
static uint16* dram;
|
|
static uint16* irom;
|
|
static uint16* drom;
|
|
static uint16* coef;
|
|
static uint8* cpu_ram;
|
|
static uint16 cr;
|
|
static uint8 reg_stack_ptr[4];
|
|
// lets make stack depth to 32 for now
|
|
static uint16 reg_stack[4][DSP_STACK_DEPTH];
|
|
static void (* irq_request)(void);
|
|
|
|
// for debugger only
|
|
static uint32 iram_crc;
|
|
static uint64 step_counter;
|
|
static bool exception_in_progress_hack;
|
|
};
|
|
|
|
extern SDSP g_dsp;
|
|
|
|
|
|
void gdsp_init(void);
|
|
void gdsp_reset(void);
|
|
bool gdsp_load_rom(char* fname);
|
|
bool gdsp_load_coef(char* fname);
|
|
|
|
|
|
// steps through DSP code, returns false if error occured
|
|
void gdsp_step(void);
|
|
void gdsp_loop_step();
|
|
bool gdsp_run(void);
|
|
bool gdsp_runx(uint16 cnt);
|
|
void gdsp_stop(void);
|
|
|
|
void gdsp_write_cr(uint16 val);
|
|
uint16 gdsp_read_cr(void);
|
|
|
|
uint16* gdsp_get_iram(void);
|
|
uint16* gdsp_get_irom(void);
|
|
uint16* gdsp_get_dram(void);
|
|
uint16* gdsp_get_drom(void);
|
|
|
|
#endif
|