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#ifndef DRC_CORE_H
#define DRC_CORE_H
#include "vb_types.h"
#include "arm_emit.h"
#define CACHE_SIZE 0x100000
#define MAX_INST 2048
#define ARM_CACHE_REG_START 4
#define ARM_NUM_CACHE_REGS 6
#define MAX_NUM_BLOCKS 4096
enum {
DRC_ERR_BAD_ENTRY = 1,
DRC_ERR_BAD_PC = 2,
DRC_ERR_NO_DYNAREC = 3,
DRC_ERR_NO_BLOCKS = 4,
DRC_ERR_CACHE_FULL = 5,
};
enum {
DRC_RELOC_DIVSI = 0,
DRC_RELOC_MODSI = 1,
DRC_RELOC_UDIVSI = 2,
DRC_RELOC_UMODSI = 3,
DRC_RELOC_RBYTE = 4,
DRC_RELOC_RHWORD = 5,
DRC_RELOC_RWORD = 6,
DRC_RELOC_WBYTE = 7,
DRC_RELOC_WHWORD = 8,
DRC_RELOC_WWORD = 9,
DRC_RELOC_FPP = 10,
DRC_RELOC_BSTR = 26,
};
#define END_BLOCK 0xFF
#pragma pack(1)
typedef struct {
WORD phys_offset;
WORD virt_loc;
WORD size;
WORD cycles;
// Unused. TODO: Remove me!
BYTE jmp_reg;
// We can use ARM_NUM_CACHE_REGS registers at a time, r4-r10, and r11 will
// have the address of v810_state
// reg_map[0] would have the VB register that is mapped to r4
BYTE reg_map[7];
WORD end_pc; // The address of the last instruction in the block
} exec_block;
typedef struct {
WORD PC;
BYTE opcode;
BYTE reg1, reg2;
WORD imm;
HWORD start_pos;
BYTE trans_size;
int branch_offset;
bool save_flags;
} v810_instruction;
#pragma pack()
WORD* rom_block_map;
WORD* ram_block_map;
WORD* rom_entry_map;
WORD* ram_entry_map;
BYTE reg_usage[32];
extern WORD* cache_start;
extern WORD* cache_pos;
exec_block* block_ptr_start;
extern void* cache_dump_bin;
int __divsi3(int a, int b);
int __modsi3(int a, int b);
unsigned int __udivsi3(unsigned int a, unsigned int b);
unsigned int __umodsi3(unsigned int a, unsigned int b);
void drc_mapRegs(exec_block *block);
BYTE drc_getPhysReg(BYTE vb_reg, BYTE reg_map[]);
void drc_scanBlockBounds(WORD *p_start_PC, WORD *p_end_PC);
unsigned int drc_decodeInstructions(exec_block *block, v810_instruction *inst_cache, WORD start_PC, WORD end_PC);
int drc_translateBlock(exec_block* block);
void drc_executeBlock(WORD* entrypoint, exec_block* block);
int drc_handleInterrupts(WORD cpsr, WORD* PC);
void drc_relocTable(void);
void drc_clearCache(void);
WORD* drc_getEntry(WORD loc, exec_block **p_block);
void drc_setEntry(WORD loc, WORD *entry, exec_block *block);
exec_block* drc_getNextBlockStruct();
void drc_init();
void drc_exit();
int drc_run();
void drc_loadSavedCache();
void drc_dumpCache(char* filename);
void drc_dumpDebugInfo();
#endif //DRC_CORE_H
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