309 lines
10 KiB
C
309 lines
10 KiB
C
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#ifndef INTERPRETER_H
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#define INTERPRETER_H
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#include <setjmp.h>
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// The maximum number of opcodes.
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#define OPCODE_MAX_COUNT (342)
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typedef enum Opcode {
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OPCODE_NOOP = 0x8000,
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OPCODE_PUSH = 0x8001,
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OPCODE_ENTER_CRITICAL_SECTION = 0x8002,
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OPCODE_LEAVE_CRITICAL_SECTION = 0x8003,
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OPCODE_JUMP = 0x8004,
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OPCODE_CALL = 0x8005,
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OPCODE_CALL_AT = 0x8006,
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OPCODE_CALL_WHEN = 0x8007,
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OPCODE_CALLSTART = 0x8008,
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OPCODE_EXEC = 0x8009,
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OPCODE_SPAWN = 0x800A,
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OPCODE_FORK = 0x800B,
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OPCODE_A_TO_D = 0x800C,
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OPCODE_D_TO_A = 0x800D,
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OPCODE_EXIT = 0x800E,
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OPCODE_DETACH = 0x800F,
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OPCODE_EXIT_PROGRAM = 0x8010,
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OPCODE_STOP_PROGRAM = 0x8011,
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OPCODE_FETCH_GLOBAL = 0x8012,
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OPCODE_STORE_GLOBAL = 0x8013,
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OPCODE_FETCH_EXTERNAL = 0x8014,
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OPCODE_STORE_EXTERNAL = 0x8015,
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OPCODE_EXPORT_VARIABLE = 0x8016,
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OPCODE_EXPORT_PROCEDURE = 0x8017,
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OPCODE_SWAP = 0x8018,
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OPCODE_SWAPA = 0x8019,
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OPCODE_POP = 0x801A,
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OPCODE_DUP = 0x801B,
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OPCODE_POP_RETURN = 0x801C,
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OPCODE_POP_EXIT = 0x801D,
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OPCODE_POP_ADDRESS = 0x801E,
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OPCODE_POP_FLAGS = 0x801F,
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OPCODE_POP_FLAGS_RETURN = 0x8020,
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OPCODE_POP_FLAGS_EXIT = 0x8021,
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OPCODE_POP_FLAGS_RETURN_EXTERN = 0x8022,
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OPCODE_POP_FLAGS_EXIT_EXTERN = 0x8023,
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OPCODE_POP_FLAGS_RETURN_VAL_EXTERN = 0x8024,
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OPCODE_POP_FLAGS_RETURN_VAL_EXIT = 0x8025,
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OPCODE_POP_FLAGS_RETURN_VAL_EXIT_EXTERN = 0x8026,
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OPCODE_CHECK_PROCEDURE_ARGUMENT_COUNT = 0x8027,
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OPCODE_LOOKUP_PROCEDURE_BY_NAME = 0x8028,
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OPCODE_POP_BASE = 0x8029,
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OPCODE_POP_TO_BASE = 0x802A,
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OPCODE_PUSH_BASE = 0x802B,
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OPCODE_SET_GLOBAL = 0x802C,
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OPCODE_FETCH_PROCEDURE_ADDRESS = 0x802D,
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OPCODE_DUMP = 0x802E,
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OPCODE_IF = 0x802F,
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OPCODE_WHILE = 0x8030,
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OPCODE_STORE = 0x8031,
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OPCODE_FETCH = 0x8032,
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OPCODE_EQUAL = 0x8033,
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OPCODE_NOT_EQUAL = 0x8034,
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OPCODE_LESS_THAN_EQUAL = 0x8035,
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OPCODE_GREATER_THAN_EQUAL = 0x8036,
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OPCODE_LESS_THAN = 0x8037,
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OPCODE_GREATER_THAN = 0x8038,
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OPCODE_ADD = 0x8039,
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OPCODE_SUB = 0x803A,
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OPCODE_MUL = 0x803B,
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OPCODE_DIV = 0x803C,
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OPCODE_MOD = 0x803D,
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OPCODE_AND = 0x803E,
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OPCODE_OR = 0x803F,
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OPCODE_BITWISE_AND = 0x8040,
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OPCODE_BITWISE_OR = 0x8041,
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OPCODE_BITWISE_XOR = 0x8042,
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OPCODE_BITWISE_NOT = 0x8043,
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OPCODE_FLOOR = 0x8044,
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OPCODE_NOT = 0x8045,
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OPCODE_NEGATE = 0x8046,
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OPCODE_WAIT = 0x8047,
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OPCODE_CANCEL = 0x8048,
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OPCODE_CANCEL_ALL = 0x8049,
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OPCODE_START_CRITICAL = 0x804A,
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OPCODE_END_CRITICAL = 0x804B,
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} Opcode;
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typedef enum ProcedureFlags {
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PROCEDURE_FLAG_TIMED = 0x01,
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PROCEDURE_FLAG_CONDITIONAL = 0x02,
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PROCEDURE_FLAG_IMPORTED = 0x04,
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PROCEDURE_FLAG_EXPORTED = 0x08,
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PROCEDURE_FLAG_CRITICAL = 0x10,
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} ProcedureFlags;
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typedef enum ProgramFlags {
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PROGRAM_FLAG_EXITED = 0x01,
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PROGRAM_FLAG_0x02 = 0x02,
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PROGRAM_FLAG_0x04 = 0x04,
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PROGRAM_FLAG_STOPPED = 0x08,
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PROGRAM_FLAG_0x10 = 0x10,
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PROGRAM_FLAG_0x20 = 0x20,
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PROGRAM_FLAG_0x40 = 0x40,
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PROGRAM_FLAG_CRITICAL_SECTION = 0x80,
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PROGRAM_FLAG_0x0100 = 0x0100,
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} ProgramFlags;
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enum RawValueType {
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RAW_VALUE_TYPE_OPCODE = 0x8000,
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RAW_VALUE_TYPE_INT = 0x4000,
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RAW_VALUE_TYPE_FLOAT = 0x2000,
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RAW_VALUE_TYPE_STATIC_STRING = 0x1000,
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RAW_VALUE_TYPE_DYNAMIC_STRING = 0x0800,
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};
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#define VALUE_TYPE_MASK 0xF7FF
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#define VALUE_TYPE_INT 0xC001
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#define VALUE_TYPE_FLOAT 0xA001
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#define VALUE_TYPE_STRING 0x9001
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#define VALUE_TYPE_DYNAMIC_STRING 0x9801
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typedef unsigned short opcode_t;
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typedef struct Procedure {
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int field_0;
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int field_4;
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int field_8;
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int field_C;
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int field_10;
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int field_14;
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} Procedure;
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// It's size in original code is 144 (0x8C) bytes due to the different
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// size of `jmp_buf`.
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typedef struct Program {
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char* name;
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unsigned char* data;
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struct Program* parent;
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struct Program* child;
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int instructionPointer; // current pos in data
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int framePointer; // saved stack 1 pos - probably beginning of local variables - probably called base
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int basePointer; // saved stack 1 pos - probably beginning of global variables
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unsigned char* stack; // stack 1 (4096 bytes)
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unsigned char* returnStack; // stack 2 (4096 bytes)
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int stackPointer; // stack pointer 1
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int returnStackPointer; // stack pointer 2
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unsigned char* staticStrings; // static strings table
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unsigned char* dynamicStrings; // dynamic strings table
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unsigned char* identifiers;
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unsigned char* procedures;
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jmp_buf env;
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int field_70; // end time of timer (field_74 + wait time)
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int field_74; // time when wait was called
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int field_78; // time when program begin execution (for the first time)?, -1 - program never executed
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int (*field_7C)(struct Program* s); // proc to check timer
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int flags; // flags
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int field_84;
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bool exited;
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} Program;
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typedef void OpcodeHandler(Program* program);
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typedef struct ProgramListNode {
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Program* program;
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struct ProgramListNode* next; // next
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struct ProgramListNode* prev; // prev
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} ProgramListNode;
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extern int _TimeOut;
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extern int _Enabled;
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extern int (*_timerFunc)();
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extern int _timerTick;
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extern char* (*_filenameFunc)(char*);
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extern int (*_outputFunc)(char*);
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extern int _cpuBurstSize;
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extern OpcodeHandler* gInterpreterOpcodeHandlers[OPCODE_MAX_COUNT];
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extern Program* gInterpreterCurrentProgram;
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extern ProgramListNode* gInterpreterProgramListHead;
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extern int _suspendEvents;
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extern int _busy;
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int _defaultTimerFunc();
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char* _defaultFilename_(char* s);
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char* _interpretMangleName(char* s);
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int _outputStr(char* a1);
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int _checkWait(Program* program);
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void _interpretOutputFunc(int (*func)(char*));
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int _interpretOutput(const char* format, ...);
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char* programGetCurrentProcedureName(Program* s);
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__declspec(noreturn) void programFatalError(const char* str, ...);
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opcode_t stackReadInt16(unsigned char* data, int pos);
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int stackReadInt32(unsigned char* a1, int a2);
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void stackWriteInt16(int value, unsigned char* a2, int a3);
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void stackWriteInt32(int value, unsigned char* stack, int pos);
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void stackPushInt16(unsigned char* a1, int* a2, int value);
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void stackPushInt32(unsigned char* a1, int* a2, int value);
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int stackPopInt32(unsigned char* a1, int* a2);
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opcode_t stackPopInt16(unsigned char* a1, int* a2);
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void programPopString(Program* program, opcode_t a2, int a3);
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void programStackPushInt16(Program* program, int value);
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void programStackPushInt32(Program* program, int value);
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opcode_t programStackPopInt16(Program* program);
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int programStackPopInt32(Program* program);
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void programReturnStackPushInt16(Program* program, int value);
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opcode_t programReturnStackPopInt16(Program* program);
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int programReturnStackPopInt32(Program* program);
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void _detachProgram(Program* program);
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void _purgeProgram(Program* program);
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void programFree(Program* program);
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Program* programCreateByPath(const char* path);
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char* programGetString(Program* program, opcode_t opcode, int offset);
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char* programGetIdentifier(Program* program, int offset);
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void programMarkHeap(Program* program);
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int programPushString(Program* program, char* string);
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void opNoop(Program* program);
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void opPush(Program* program);
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void opPushBase(Program* program);
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void opPopBase(Program* program);
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void opPopToBase(Program* program);
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void op802C(Program* program);
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void opDump(Program* program);
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void opDelayedCall(Program* program);
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void opConditionalCall(Program* program);
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void opWait(Program* program);
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void opCancel(Program* program);
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void opCancelAll(Program* program);
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void opIf(Program* program);
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void opWhile(Program* program);
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void opStore(Program* program);
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void opFetch(Program* program);
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void opConditionalOperatorNotEqual(Program* program);
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void opConditionalOperatorEqual(Program* program);
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void opConditionalOperatorLessThanEquals(Program* program);
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void opConditionalOperatorGreaterThanEquals(Program* program);
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void opConditionalOperatorLessThan(Program* program);
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void opConditionalOperatorGreaterThan(Program* program);
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void opAdd(Program* program);
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void opSubtract(Program* program);
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void opMultiply(Program* program);
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void opDivide(Program* program);
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void opModulo(Program* program);
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void opLogicalOperatorAnd(Program* program);
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void opLogicalOperatorOr(Program* program);
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void opLogicalOperatorNot(Program* program);
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void opUnaryMinus(Program* program);
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void opBitwiseOperatorNot(Program* program);
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void opFloor(Program* program);
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void opBitwiseOperatorAnd(Program* program);
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void opBitwiseOperatorOr(Program* program);
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void opBitwiseOperatorXor(Program* program);
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void opSwapReturnStack(Program* program);
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void opLeaveCriticalSection(Program* program);
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void opEnterCriticalSection(Program* program);
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void opJump(Program* program);
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void opCall(Program* program);
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void op801F(Program* program);
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void op801C(Program* program);
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void op801D(Program* program);
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void op8020(Program* program);
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void op8021(Program* program);
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void op8025(Program* program);
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void op8026(Program* program);
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void op8022(Program* program);
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void op8023(Program* program);
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void op8024(Program* program);
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void op801E(Program* program);
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void opAtoD(Program* program);
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void opDtoA(Program* program);
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void opExitProgram(Program* program);
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void opStopProgram(Program* program);
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void opFetchGlobalVariable(Program* program);
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void opStoreGlobalVariable(Program* program);
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void opSwapStack(Program* program);
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void opFetchProcedureAddress(Program* program);
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void opPop(Program* program);
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void opDuplicate(Program* program);
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void opStoreExternalVariable(Program* program);
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void opFetchExternalVariable(Program* program);
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void opExportProcedure(Program* program);
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void opExportVariable(Program* program);
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void opExit(Program* program);
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void opDetach(Program* program);
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void opCallStart(Program* program);
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void opSpawn(Program* program);
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Program* forkProgram(Program* program);
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void opFork(Program* program);
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void opExec(Program* program);
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void opCheckProcedureArgumentCount(Program* program);
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void opLookupStringProc(Program* program);
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void interpreterRegisterOpcodeHandlers();
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void _interpretClose();
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void _interpret(Program* program, int a2);
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void _setupCallWithReturnVal(Program* program, int address, int a3);
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void _setupExternalCallWithReturnVal(Program* program1, Program* program2, int address, int a4);
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void _executeProc(Program* program, int procedure_index);
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int programFindProcedure(Program* prg, const char* name);
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void _executeProcedure(Program* program, int procedure_index);
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void _doEvents();
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void programListNodeFree(ProgramListNode* programListNode);
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void programListNodeCreate(Program* program);
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void _updatePrograms();
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void programListFree();
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void interpreterRegisterOpcode(int opcode, OpcodeHandler* handler);
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void interpreterPrintStats();
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#endif /* INTERPRETER_H */
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