56dc6ecb70
This removes libco and all the usages of it (+pthreads). Rewired all dynarecs and interpreter to return after every frame so that libretro can process events. This required to make dynarec re-entrant. Dynarecs were updated to check for new frame on every update (IRQ, cycle exhaustion, I/O write, etc). The performance impact of doing so should be minimal (and definitely outweight the libco gains). While at it, fixed small issues to get a bit more perf: arm dynarec was not idling correctly, mips was using stack when not needed, etc. Tested on PSP (mips), OGA (armv7), Linux (x86 and interpreter). Not tested on Android though.
215 lines
5.9 KiB
C
215 lines
5.9 KiB
C
/* gameplaySP
|
|
*
|
|
* Copyright (C) 2006 Exophase <exophase@gmail.com>
|
|
*
|
|
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef CPU_H
|
|
#define CPU_H
|
|
|
|
// System mode and user mode are represented as the same here
|
|
|
|
typedef enum
|
|
{
|
|
MODE_USER,
|
|
MODE_IRQ,
|
|
MODE_FIQ,
|
|
MODE_SUPERVISOR,
|
|
MODE_ABORT,
|
|
MODE_UNDEFINED,
|
|
MODE_INVALID
|
|
} cpu_mode_type;
|
|
|
|
typedef enum
|
|
{
|
|
CPU_ALERT_NONE,
|
|
CPU_ALERT_HALT,
|
|
CPU_ALERT_SMC,
|
|
CPU_ALERT_IRQ
|
|
} cpu_alert_type;
|
|
|
|
typedef enum
|
|
{
|
|
CPU_ACTIVE,
|
|
CPU_HALT,
|
|
CPU_STOP
|
|
} cpu_halt_type;
|
|
|
|
typedef enum
|
|
{
|
|
IRQ_NONE = 0x0000,
|
|
IRQ_VBLANK = 0x0001,
|
|
IRQ_HBLANK = 0x0002,
|
|
IRQ_VCOUNT = 0x0004,
|
|
IRQ_TIMER0 = 0x0008,
|
|
IRQ_TIMER1 = 0x0010,
|
|
IRQ_TIMER2 = 0x0020,
|
|
IRQ_TIMER3 = 0x0040,
|
|
IRQ_SERIAL = 0x0080,
|
|
IRQ_DMA0 = 0x0100,
|
|
IRQ_DMA1 = 0x0200,
|
|
IRQ_DMA2 = 0x0400,
|
|
IRQ_DMA3 = 0x0800,
|
|
IRQ_KEYPAD = 0x1000,
|
|
IRQ_GAMEPAK = 0x2000
|
|
} irq_type;
|
|
|
|
typedef enum
|
|
{
|
|
REG_SP = 13,
|
|
REG_LR = 14,
|
|
REG_PC = 15,
|
|
REG_N_FLAG = 16,
|
|
REG_Z_FLAG = 17,
|
|
REG_C_FLAG = 18,
|
|
REG_V_FLAG = 19,
|
|
REG_CPSR = 20,
|
|
REG_SAVE = 21,
|
|
REG_SAVE2 = 22,
|
|
REG_SAVE3 = 23,
|
|
CPU_MODE = 29,
|
|
CPU_HALT_STATE = 30,
|
|
CHANGED_PC_STATUS = 31,
|
|
COMPLETED_FRAME = 32
|
|
} ext_reg_numbers;
|
|
|
|
typedef enum
|
|
{
|
|
TRANSLATION_REGION_RAM,
|
|
TRANSLATION_REGION_ROM,
|
|
TRANSLATION_REGION_BIOS
|
|
} translation_region_type;
|
|
|
|
extern u32 instruction_count;
|
|
extern u32 last_instruction;
|
|
|
|
void execute_arm(u32 cycles);
|
|
void raise_interrupt(irq_type irq_raised);
|
|
void set_cpu_mode(cpu_mode_type new_mode);
|
|
|
|
u32 function_cc execute_load_u8(u32 address);
|
|
u32 function_cc execute_load_u16(u32 address);
|
|
u32 function_cc execute_load_u32(u32 address);
|
|
u32 function_cc execute_load_s8(u32 address);
|
|
u32 function_cc execute_load_s16(u32 address);
|
|
void function_cc execute_store_u8(u32 address, u32 source);
|
|
void function_cc execute_store_u16(u32 address, u32 source);
|
|
void function_cc execute_store_u32(u32 address, u32 source);
|
|
u32 function_cc execute_arm_translate(u32 cycles);
|
|
void init_translater(void);
|
|
void cpu_write_savestate(void);
|
|
void cpu_read_savestate(void);
|
|
|
|
u8 function_cc *block_lookup_address_arm(u32 pc);
|
|
u8 function_cc *block_lookup_address_thumb(u32 pc);
|
|
u8 function_cc *block_lookup_address_dual(u32 pc);
|
|
s32 translate_block_arm(u32 pc, translation_region_type translation_region,
|
|
u32 smc_enable);
|
|
s32 translate_block_thumb(u32 pc, translation_region_type translation_region,
|
|
u32 smc_enable);
|
|
|
|
#if defined(PSP)
|
|
|
|
#define ROM_TRANSLATION_CACHE_SIZE (1024 * 512 * 4)
|
|
#define RAM_TRANSLATION_CACHE_SIZE (1024 * 384)
|
|
#define BIOS_TRANSLATION_CACHE_SIZE (1024 * 128)
|
|
#define TRANSLATION_CACHE_LIMIT_THRESHOLD (1024)
|
|
|
|
#else
|
|
|
|
#define ROM_TRANSLATION_CACHE_SIZE (1024 * 512 * 4 * 5)
|
|
#define RAM_TRANSLATION_CACHE_SIZE (1024 * 384 * 2)
|
|
#define BIOS_TRANSLATION_CACHE_SIZE (1024 * 128 * 2)
|
|
#define TRANSLATION_CACHE_LIMIT_THRESHOLD (1024 * 32)
|
|
|
|
#endif
|
|
|
|
#if defined(HAVE_MMAP)
|
|
extern u8* rom_translation_cache;
|
|
extern u8* ram_translation_cache;
|
|
extern u8* bios_translation_cache;
|
|
#elif defined(_3DS)
|
|
#define rom_translation_cache ((u8*)0x02000000 - ROM_TRANSLATION_CACHE_SIZE)
|
|
#define ram_translation_cache (rom_translation_cache - RAM_TRANSLATION_CACHE_SIZE)
|
|
#define bios_translation_cache (ram_translation_cache - BIOS_TRANSLATION_CACHE_SIZE)
|
|
extern u8* rom_translation_cache_ptr;
|
|
extern u8* ram_translation_cache_ptr;
|
|
extern u8* bios_translation_cache_ptr;
|
|
#elif defined(VITA)
|
|
extern u8* rom_translation_cache;
|
|
extern u8* ram_translation_cache;
|
|
extern u8* bios_translation_cache;
|
|
extern int sceBlock;
|
|
#else
|
|
extern u8 rom_translation_cache[ROM_TRANSLATION_CACHE_SIZE];
|
|
extern u8 ram_translation_cache[RAM_TRANSLATION_CACHE_SIZE];
|
|
extern u8 bios_translation_cache[BIOS_TRANSLATION_CACHE_SIZE];
|
|
#endif
|
|
extern u8 *rom_translation_ptr;
|
|
extern u8 *ram_translation_ptr;
|
|
extern u8 *bios_translation_ptr;
|
|
|
|
#define MAX_TRANSLATION_GATES 8
|
|
|
|
extern u32 idle_loop_target_pc;
|
|
extern u32 force_pc_update_target;
|
|
extern u32 iwram_stack_optimize;
|
|
extern u32 allow_smc_ram_u8;
|
|
extern u32 allow_smc_ram_u16;
|
|
extern u32 allow_smc_ram_u32;
|
|
extern u32 direct_map_vram;
|
|
extern u32 translation_gate_targets;
|
|
extern u32 translation_gate_target_pc[MAX_TRANSLATION_GATES];
|
|
|
|
extern u32 in_interrupt;
|
|
|
|
#define ROM_BRANCH_HASH_SIZE (1024 * 64)
|
|
|
|
/* EDIT: Shouldn't this be extern ?! */
|
|
extern u32 *rom_branch_hash[ROM_BRANCH_HASH_SIZE];
|
|
|
|
void flush_translation_cache_rom(void);
|
|
void flush_translation_cache_ram(void);
|
|
void flush_translation_cache_bios(void);
|
|
void dump_translation_cache(void);
|
|
|
|
extern u32 reg_mode[7][7];
|
|
extern u32 spsr[6];
|
|
|
|
extern u32 cpu_modes[32];
|
|
extern const u32 psr_masks[16];
|
|
|
|
extern u32 memory_region_access_read_u8[16];
|
|
extern u32 memory_region_access_read_s8[16];
|
|
extern u32 memory_region_access_read_u16[16];
|
|
extern u32 memory_region_access_read_s16[16];
|
|
extern u32 memory_region_access_read_u32[16];
|
|
extern u32 memory_region_access_write_u8[16];
|
|
extern u32 memory_region_access_write_u16[16];
|
|
extern u32 memory_region_access_write_u32[16];
|
|
extern u32 memory_reads_u8;
|
|
extern u32 memory_reads_s8;
|
|
extern u32 memory_reads_u16;
|
|
extern u32 memory_reads_s16;
|
|
extern u32 memory_reads_u32;
|
|
extern u32 memory_writes_u8;
|
|
extern u32 memory_writes_u16;
|
|
extern u32 memory_writes_u32;
|
|
|
|
void init_cpu(void);
|
|
void move_reg();
|
|
|
|
#endif
|