124 lines
3.3 KiB
C
124 lines
3.3 KiB
C
// Copyright (C) 2003-2009 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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/*====================================================================
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filename: gdsp_interpreter.h
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project: GCemu
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created: 2004-6-18
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mail: duddie@walla.com
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Copyright (c) 2005 Duddie & Tratax
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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====================================================================*/
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#ifndef _GDSP_INTERPRETER_H
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#define _GDSP_INTERPRETER_H
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#include "Globals.h"
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#define DSP_IRAM_BYTE_SIZE 0x2000
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#define DSP_IRAM_SIZE 0x1000
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#define DSP_IRAM_MASK 0x0fff
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#define DSP_IROM_BYTE_SIZE 0x2000
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#define DSP_IROM_SIZE 0x1000
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#define DSP_IROM_MASK 0x0fff
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#define DSP_DRAM_BYTE_SIZE 0x2000
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#define DSP_DRAM_SIZE 0x1000
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#define DSP_DRAM_MASK 0x0fff
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#define DSP_COEF_BYTE_SIZE 0x2000
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#define DSP_COEF_SIZE 0x1000
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#define DSP_COEF_MASK 0x0fff
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#define DSP_RESET_VECTOR 0x8000
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#define DSP_STACK_DEPTH 0x20
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#define DSP_STACK_MASK 0x1f
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struct SDSP
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{
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u16 r[32];
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u16 pc;
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u16 err_pc;
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u16* iram;
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u16* dram;
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u16* irom;
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u16* coef;
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u8* cpu_ram;
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u16 cr;
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u8 reg_stack_ptr[4];
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u8 exceptions; // pending exceptiosn?
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// lets make stack depth to 32 for now
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u16 reg_stack[4][DSP_STACK_DEPTH];
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void (* irq_request)(void);
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// for debugger only
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bool dump_imem;
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u32 iram_crc;
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u64 step_counter;
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bool exception_in_progress_hack;
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};
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extern SDSP g_dsp;
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void gdsp_init();
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void gdsp_reset();
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void gdsp_shutdown();
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bool gdsp_load_irom(const char *fname);
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bool gdsp_load_coef(const char *fname);
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// steps through DSP code, returns false if error occured
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void gdsp_step(void);
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void gdsp_loop_step();
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bool gdsp_run(void);
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bool gdsp_runx(u16 cnt);
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void gdsp_stop(void);
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void gdsp_write_cr(u16 val);
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u16 gdsp_read_cr(void);
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u16* gdsp_get_iram(void);
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u16* gdsp_get_irom(void);
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u16* gdsp_get_dram(void);
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u16* gdsp_get_drom(void);
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// sets a flag in the pending exception register.
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void gdsp_generate_exception(u8 level);
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#endif
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