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DSP: Remove all mentions of the mysterious DROM. Write protect the ROMs and IRAM as much as possible while loaded (to make sure they don't get corrupted by some memory overwrite or whatever). Make instruction reads stricter - iram and irom don't wrap anymore (not 100% sure about this one). Misc cleanup + changes.

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@2904 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
hrydgard
2009-04-06 18:47:21 +00:00
parent 13ac45db1a
commit 0fd2edbf98
12 changed files with 147 additions and 116 deletions
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71
Source/Plugins/Plugin_DSP_LLE-testing/Src/gdsp_interpreter.h
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@ -45,55 +45,60 @@
#include "Globals.h"
// Are these in bytes or 16-bit words? Probably 16-bit words.
#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_IRAM_BYTE_SIZE 0x2000
#define DSP_IRAM_SIZE 0x1000
#define DSP_IRAM_MASK 0x0fff
#define DSP_RESET_VECTOR (0x8000)
#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
struct SDSP
{
static u16 r[32];
static u16 pc;
static u16 err_pc;
static u16* iram;
static u16* dram;
static u16* irom;
static u16* drom;
static u16* coef;
static u8* cpu_ram;
static u16 cr;
static u8 reg_stack_ptr[4];
static u8 exceptions; // pending exceptiosn?
u16 r[32];
u16 pc;
u16 err_pc;
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
static u16 reg_stack[4][DSP_STACK_DEPTH];
static void (* irq_request)(void);
u16 reg_stack[4][DSP_STACK_DEPTH];
void (* irq_request)(void);
// for debugger only
static bool dump_imem;
static u32 iram_crc;
static u64 step_counter;
static bool exception_in_progress_hack;
bool dump_imem;
u32 iram_crc;
u64 step_counter;
bool exception_in_progress_hack;
};
extern SDSP g_dsp;
void gdsp_init(void);
void gdsp_reset(void);
bool gdsp_load_rom(const char *fname);
void gdsp_init();
void gdsp_reset();
void gdsp_shutdown();
bool gdsp_load_irom(const char *fname);
bool gdsp_load_coef(const char *fname);