#include "interpreter.h" #include "core.h" #include "db.h" #include "debug.h" #include "export.h" #include "interpreter_lib.h" #include "memory_manager.h" #include "platform_compat.h" #include #include #include #include #include #include typedef struct ProgramListNode { Program* program; struct ProgramListNode* next; // next struct ProgramListNode* prev; // prev } ProgramListNode; static int _defaultTimerFunc(); static char* _defaultFilename_(char* s); static int _outputStr(char* a1); static int _checkWait(Program* program); static char* programGetCurrentProcedureName(Program* s); static opcode_t stackReadInt16(unsigned char* data, int pos); static int stackReadInt32(unsigned char* a1, int a2); static void stackWriteInt16(int value, unsigned char* a2, int a3); static void stackWriteInt32(int value, unsigned char* stack, int pos); static void stackPushInt16(unsigned char* a1, int* a2, int value); static void stackPushInt32(unsigned char* a1, int* a2, int value); static int stackPopInt32(unsigned char* a1, int* a2); static opcode_t stackPopInt16(unsigned char* a1, int* a2); static void programReturnStackPushInt16(Program* program, int value); static opcode_t programReturnStackPopInt16(Program* program); static int programReturnStackPopInt32(Program* program); static void _detachProgram(Program* program); static void _purgeProgram(Program* program); static void programFree(Program* program); static void programMarkHeap(Program* program); static void opNoop(Program* program); static void opPush(Program* program); static void opPushBase(Program* program); static void opPopBase(Program* program); static void opPopToBase(Program* program); static void op802C(Program* program); static void opDump(Program* program); static void opDelayedCall(Program* program); static void opConditionalCall(Program* program); static void opWait(Program* program); static void opCancel(Program* program); static void opCancelAll(Program* program); static void opIf(Program* program); static void opWhile(Program* program); static void opStore(Program* program); static void opFetch(Program* program); static void opConditionalOperatorNotEqual(Program* program); static void opConditionalOperatorEqual(Program* program); static void opConditionalOperatorLessThanEquals(Program* program); static void opConditionalOperatorGreaterThanEquals(Program* program); static void opConditionalOperatorLessThan(Program* program); static void opConditionalOperatorGreaterThan(Program* program); static void opAdd(Program* program); static void opSubtract(Program* program); static void opMultiply(Program* program); static void opDivide(Program* program); static void opModulo(Program* program); static void opLogicalOperatorAnd(Program* program); static void opLogicalOperatorOr(Program* program); static void opLogicalOperatorNot(Program* program); static void opUnaryMinus(Program* program); static void opBitwiseOperatorNot(Program* program); static void opFloor(Program* program); static void opBitwiseOperatorAnd(Program* program); static void opBitwiseOperatorOr(Program* program); static void opBitwiseOperatorXor(Program* program); static void opSwapReturnStack(Program* program); static void opLeaveCriticalSection(Program* program); static void opEnterCriticalSection(Program* program); static void opJump(Program* program); static void opCall(Program* program); static void op801F(Program* program); static void op801C(Program* program); static void op801D(Program* program); static void op8020(Program* program); static void op8021(Program* program); static void op8025(Program* program); static void op8026(Program* program); static void op8022(Program* program); static void op8023(Program* program); static void op8024(Program* program); static void op801E(Program* program); static void opAtoD(Program* program); static void opDtoA(Program* program); static void opExitProgram(Program* program); static void opStopProgram(Program* program); static void opFetchGlobalVariable(Program* program); static void opStoreGlobalVariable(Program* program); static void opSwapStack(Program* program); static void opFetchProcedureAddress(Program* program); static void opPop(Program* program); static void opDuplicate(Program* program); static void opStoreExternalVariable(Program* program); static void opFetchExternalVariable(Program* program); static void opExportProcedure(Program* program); static void opExportVariable(Program* program); static void opExit(Program* program); static void opDetach(Program* program); static void opCallStart(Program* program); static void opSpawn(Program* program); static Program* forkProgram(Program* program); static void opFork(Program* program); static void opExec(Program* program); static void opCheckProcedureArgumentCount(Program* program); static void opLookupStringProc(Program* program); static void _setupCallWithReturnVal(Program* program, int address, int a3); static void _setupExternalCallWithReturnVal(Program* program1, Program* program2, int address, int a4); static void _doEvents(); static void programListNodeFree(ProgramListNode* programListNode); static void interpreterPrintStats(); // 0x50942C static char _aCouldnTFindPro[] = ""; // sayTimeoutMsg // 0x519038 int _TimeOut = 0; // 0x51903C static int _Enabled = 1; // 0x519040 static int (*_timerFunc)() = _defaultTimerFunc; // 0x519044 static int _timerTick = 1000; // 0x519048 static char* (*_filenameFunc)(char*) = _defaultFilename_; // 0x51904C static int (*_outputFunc)(char*) = _outputStr; // 0x519050 static int _cpuBurstSize = 10; // 0x59E230 static OpcodeHandler* gInterpreterOpcodeHandlers[342]; // 0x59E78C static Program* gInterpreterCurrentProgram; // 0x59E790 static ProgramListNode* gInterpreterProgramListHead; // 0x59E794 static int _suspendEvents; // 0x59E798 static int _busy; // 0x4670A0 static int _defaultTimerFunc() { return _get_time(); } // 0x4670B4 static char* _defaultFilename_(char* s) { return s; } // 0x4670B8 char* _interpretMangleName(char* s) { return _filenameFunc(s); } // 0x4670C0 static int _outputStr(char* a1) { return 1; } // 0x4670C8 static int _checkWait(Program* program) { return 1000 * _timerFunc() / _timerTick <= program->field_70; } // 0x4670FC void _interpretOutputFunc(int (*func)(char*)) { _outputFunc = func; } // 0x467104 int _interpretOutput(const char* format, ...) { if (_outputFunc == NULL) { return 0; } char string[260]; va_list args; va_start(args, format); int rc = vsprintf(string, format, args); va_end(args); debugPrint(string); return rc; } // 0x467160 static char* programGetCurrentProcedureName(Program* program) { int procedureCount = stackReadInt32(program->procedures, 0); unsigned char* ptr = program->procedures + 4; int procedureOffset = stackReadInt32(ptr, 16); int identifierOffset = stackReadInt32(ptr, 0); for (int index = 0; index < procedureCount; index++) { int nextProcedureOffset = stackReadInt32(ptr + 24, 16); if (program->instructionPointer >= procedureOffset && program->instructionPointer < nextProcedureOffset) { return (char*)(program->identifiers + identifierOffset); } ptr += 24; identifierOffset = stackReadInt32(ptr, 0); } return _aCouldnTFindPro; } // 0x4671F0 [[noreturn]] void programFatalError(const char* format, ...) { char string[260]; va_list argptr; va_start(argptr, format); vsprintf(string, format, argptr); va_end(argptr); debugPrint("\nError during execution: %s\n", string); if (gInterpreterCurrentProgram == NULL) { debugPrint("No current script"); } else { char* procedureName = programGetCurrentProcedureName(gInterpreterCurrentProgram); debugPrint("Current script: %s, procedure %s", gInterpreterCurrentProgram->name, procedureName); } if (gInterpreterCurrentProgram) { longjmp(gInterpreterCurrentProgram->env, 1); } } // 0x467290 static opcode_t stackReadInt16(unsigned char* data, int pos) { // TODO: The return result is probably short. opcode_t value = 0; value |= data[pos++] << 8; value |= data[pos++]; return value; } // 0x4672A4 static int stackReadInt32(unsigned char* data, int pos) { int value = 0; value |= data[pos++] << 24; value |= data[pos++] << 16; value |= data[pos++] << 8; value |= data[pos++] & 0xFF; return value; } // 0x4672D4 static void stackWriteInt16(int value, unsigned char* stack, int pos) { stack[pos++] = (value >> 8) & 0xFF; stack[pos] = value & 0xFF; } // NOTE: Inlined. // // 0x4672E8 static void stackWriteInt32(int value, unsigned char* stack, int pos) { stack[pos++] = (value >> 24) & 0xFF; stack[pos++] = (value >> 16) & 0xFF; stack[pos++] = (value >> 8) & 0xFF; stack[pos] = value & 0xFF; } // pushShortStack // 0x467324 static void stackPushInt16(unsigned char* data, int* pointer, int value) { if (*pointer + 2 >= 0x1000) { programFatalError("pushShortStack: Stack overflow."); } stackWriteInt16(value, data, *pointer); *pointer += 2; } // pushLongStack // 0x46736C static void stackPushInt32(unsigned char* data, int* pointer, int value) { int v1; if (*pointer + 4 >= 0x1000) { // FIXME: Should be pushLongStack. programFatalError("pushShortStack: Stack overflow."); } v1 = *pointer; stackWriteInt16(value >> 16, data, v1); stackWriteInt16(value & 0xFFFF, data, v1 + 2); *pointer = v1 + 4; } // popStackLong // 0x4673C4 static int stackPopInt32(unsigned char* data, int* pointer) { if (*pointer < 4) { programFatalError("\nStack underflow long."); } *pointer -= 4; return stackReadInt32(data, *pointer); } // popStackShort // 0x4673F0 static opcode_t stackPopInt16(unsigned char* data, int* pointer) { if (*pointer < 2) { programFatalError("\nStack underflow short."); } *pointer -= 2; // NOTE: uninline return stackReadInt16(data, *pointer); } // 0x467440 void programPopString(Program* program, opcode_t opcode, int value) { if (opcode == VALUE_TYPE_DYNAMIC_STRING) { char* string = (char*)(program->dynamicStrings + 4 + value); short* refcountPtr = (short*)(string - 2); if (*refcountPtr != 0) { *refcountPtr -= 1; } else { debugPrint("Reference count zero for %s!\n", string); } if (*refcountPtr < 0) { debugPrint("String ref went negative, this shouldn\'t ever happen\n"); } } } // NOTE: Inlined. // // 0x4675C8 static void _detachProgram(Program* program) { Program* parent = program->parent; if (parent != NULL) { parent->flags &= ~PROGRAM_FLAG_0x20; parent->flags &= ~PROGRAM_FLAG_0x0100; if (program == parent->child) { parent->child = NULL; } } } // 0x4675F4 static void _purgeProgram(Program* program) { if (!program->exited) { _removeProgramReferences_(program); program->exited = true; } } // 0x467614 static void programFree(Program* program) { // NOTE: Uninline. _detachProgram(program); Program* curr = program->child; while (curr != NULL) { // NOTE: Uninline. _purgeProgram(curr); curr->parent = NULL; Program* next = curr->child; curr->child = NULL; curr = next; } // NOTE: Uninline. _purgeProgram(program); if (program->dynamicStrings != NULL) { internal_free_safe(program->dynamicStrings, __FILE__, __LINE__); // "..\\int\\INTRPRET.C", 429 } if (program->data != NULL) { internal_free_safe(program->data, __FILE__, __LINE__); // "..\\int\\INTRPRET.C", 430 } if (program->name != NULL) { internal_free_safe(program->name, __FILE__, __LINE__); // "..\\int\\INTRPRET.C", 431 } delete program->stackValues; delete program->returnStackValues; internal_free_safe(program, __FILE__, __LINE__); // "..\\int\\INTRPRET.C", 435 } // 0x467734 Program* programCreateByPath(const char* path) { File* stream = fileOpen(path, "rb"); if (stream == NULL) { char err[260]; sprintf(err, "Couldn't open %s for read\n", path); programFatalError(err); return NULL; } int fileSize = fileGetSize(stream); unsigned char* data = (unsigned char*)internal_malloc_safe(fileSize, __FILE__, __LINE__); // ..\\int\\INTRPRET.C, 458 fileRead(data, 1, fileSize, stream); fileClose(stream); Program* program = (Program*)internal_malloc_safe(sizeof(Program), __FILE__, __LINE__); // ..\\int\\INTRPRET.C, 463 memset(program, 0, sizeof(Program)); program->name = (char*)internal_malloc_safe(strlen(path) + 1, __FILE__, __LINE__); // ..\\int\\INTRPRET.C, 466 strcpy(program->name, path); program->child = NULL; program->parent = NULL; program->field_78 = -1; program->exited = false; program->basePointer = -1; program->framePointer = -1; program->data = data; program->procedures = data + 42; program->identifiers = 24 * stackReadInt32(program->procedures, 0) + program->procedures + 4; program->staticStrings = program->identifiers + stackReadInt32(program->identifiers, 0) + 4; program->stackValues = new ProgramStack(); program->returnStackValues = new ProgramStack(); return program; } // 0x4678E0 char* programGetString(Program* program, opcode_t opcode, int offset) { // The order of checks is important, because dynamic string flag is // always used with static string flag. if ((opcode & RAW_VALUE_TYPE_DYNAMIC_STRING) != 0) { return (char*)(program->dynamicStrings + 4 + offset); } if ((opcode & RAW_VALUE_TYPE_STATIC_STRING) != 0) { return (char*)(program->staticStrings + 4 + offset); } return NULL; } // 0x46790C char* programGetIdentifier(Program* program, int offset) { return (char*)(program->identifiers + offset); } // Loops thru heap: // - mark unreferenced blocks as free. // - merge consequtive free blocks as one large block. // // This is done by negating block length: // - positive block length - check for ref count. // - negative block length - block is free, attempt to merge with next block. // // 0x4679E0 static void programMarkHeap(Program* program) { unsigned char* ptr; short len; unsigned char* next_ptr; short next_len; short diff; if (program->dynamicStrings == NULL) { return; } ptr = program->dynamicStrings + 4; while (*(unsigned short*)ptr != 0x8000) { len = *(short*)ptr; if (len < 0) { len = -len; next_ptr = ptr + len + 4; if (*(unsigned short*)next_ptr != 0x8000) { next_len = *(short*)next_ptr; if (next_len < 0) { diff = 4 - next_len; if (diff + len < 32766) { len += diff; *(short*)ptr += next_len - 4; } else { debugPrint("merged string would be too long, size %d %d\n", diff, len); } } } } else if (*(short*)(ptr + 2) == 0) { *(short*)ptr = -len; *(short*)(ptr + 2) = 0; } ptr += len + 4; } } // 0x467A80 int programPushString(Program* program, char* string) { int v27; unsigned char* v20; unsigned char* v23; if (program == NULL) { return 0; } v27 = strlen(string) + 1; // Align memory if (v27 & 1) { v27++; } if (program->dynamicStrings != NULL) { // TODO: Needs testing, lots of pointer stuff. unsigned char* heap = program->dynamicStrings + 4; while (*(unsigned short*)heap != 0x8000) { short v2 = *(short*)heap; if (v2 >= 0) { if (v2 == v27) { if (strcmp(string, (char*)(heap + 4)) == 0) { return (heap + 4) - (program->dynamicStrings + 4); } } } else { v2 = -v2; if (v2 > v27) { if (v2 - v27 <= 4) { *(short*)heap = v2; } else { *(short*)(heap + v27 + 6) = 0; *(short*)(heap + v27 + 4) = -(v2 - v27 - 4); *(short*)(heap) = v27; } *(short*)(heap + 2) = 0; strcpy((char*)(heap + 4), string); *(heap + v27 + 3) = '\0'; return (heap + 4) - (program->dynamicStrings + 4); } } heap += v2 + 4; } } else { program->dynamicStrings = (unsigned char*)internal_malloc_safe(8, __FILE__, __LINE__); // "..\\int\\INTRPRET.C", 631 *(int*)(program->dynamicStrings) = 0; *(unsigned short*)(program->dynamicStrings + 4) = 0x8000; *(short*)(program->dynamicStrings + 6) = 1; } program->dynamicStrings = (unsigned char*)internal_realloc_safe(program->dynamicStrings, *(int*)(program->dynamicStrings) + 8 + 4 + v27, __FILE__, __LINE__); // "..\\int\\INTRPRET.C", 640 v20 = program->dynamicStrings + *(int*)(program->dynamicStrings) + 4; if ((*(short*)v20 & 0xFFFF) != 0x8000) { programFatalError("Internal consistancy error, string table mangled"); } *(int*)(program->dynamicStrings) += v27 + 4; *(short*)(v20) = v27; *(short*)(v20 + 2) = 0; strcpy((char*)(v20 + 4), string); v23 = v20 + v27; *(v23 + 3) = '\0'; *(unsigned short*)(v23 + 4) = 0x8000; *(short*)(v23 + 6) = 1; return v20 + 4 - (program->dynamicStrings + 4); } // 0x467C90 static void opNoop(Program* program) { } // 0x467C94 static void opPush(Program* program) { int pos = program->instructionPointer; program->instructionPointer = pos + 4; int value = stackReadInt32(program->data, pos); ProgramValue result; result.opcode = (program->flags >> 16) & 0xFFFF; result.integerValue = value; programStackPushValue(program, result); } // - Pops value from stack, which is a number of arguments in the procedure. // - Saves current frame pointer in return stack. // - Sets frame pointer to the stack pointer minus number of arguments. // // 0x467CD0 static void opPushBase(Program* program) { int argumentCount = programStackPopInteger(program); programReturnStackPushInteger(program, program->framePointer); program->framePointer = program->stackValues->size() - argumentCount; } // pop_base // 0x467D3C static void opPopBase(Program* program) { int data = programReturnStackPopInteger(program); program->framePointer = data; } // 0x467D94 static void opPopToBase(Program* program) { while (program->stackValues->size() != program->framePointer) { programStackPopValue(program); } } // 0x467DE0 static void op802C(Program* program) { program->basePointer = program->stackValues->size(); } // 0x467DEC static void opDump(Program* program) { int data = programStackPopInteger(program); // NOTE: Original code is slightly different - it goes backwards to -1. for (int index = 0; index < data; index++) { programStackPopValue(program); } } // 0x467EA4 static void opDelayedCall(Program* program) { int data[2]; for (int arg = 0; arg < 2; arg++) { data[arg] = programStackPopInteger(program); } unsigned char* procedure_ptr = program->procedures + 4 + 24 * data[0]; int delay = 1000 * data[1]; if (!_suspendEvents) { delay += 1000 * _timerFunc() / _timerTick; } int flags = stackReadInt32(procedure_ptr, 4); stackWriteInt32(delay, procedure_ptr, 8); stackWriteInt32(flags | PROCEDURE_FLAG_TIMED, procedure_ptr, 4); } // 0x468034 static void opConditionalCall(Program* program) { int data[2]; for (int arg = 0; arg < 2; arg++) { data[arg] = programStackPopInteger(program); } unsigned char* procedure_ptr = program->procedures + 4 + 24 * data[0]; int flags = stackReadInt32(procedure_ptr, 4); stackWriteInt32(flags | PROCEDURE_FLAG_CONDITIONAL, procedure_ptr, 4); stackWriteInt32(data[1], procedure_ptr, 12); } // 0x46817C static void opWait(Program* program) { int data = programStackPopInteger(program); program->field_74 = 1000 * _timerFunc() / _timerTick; program->field_70 = program->field_74 + data; program->field_7C = _checkWait; program->flags |= PROGRAM_FLAG_0x10; } // 0x468218 static void opCancel(Program* program) { int data = programStackPopInteger(program); if (data >= stackReadInt32(program->procedures, 0)) { programFatalError("Invalid procedure offset given to cancel"); } Procedure* proc = (Procedure*)(program->procedures + 4 + data * sizeof(*proc)); proc->field_4 = 0; proc->field_8 = 0; proc->field_C = 0; } // 0x468330 static void opCancelAll(Program* program) { int procedureCount = stackReadInt32(program->procedures, 0); for (int index = 0; index < procedureCount; index++) { // TODO: Original code uses different approach, check. Procedure* proc = (Procedure*)(program->procedures + 4 + index * sizeof(*proc)); proc->field_4 = 0; proc->field_8 = 0; proc->field_C = 0; } } // 0x468400 static void opIf(Program* program) { ProgramValue value = programStackPopValue(program); if (!value.isEmpty()) { programStackPopValue(program); } else { program->instructionPointer = programStackPopInteger(program); } } // 0x4684A4 static void opWhile(Program* program) { ProgramValue value = programStackPopValue(program); if (value.isEmpty()) { program->instructionPointer = programStackPopInteger(program); } } // 0x468518 static void opStore(Program* program) { int addr = programStackPopInteger(program); ProgramValue value = programStackPopValue(program); size_t pos = program->framePointer + addr; ProgramValue oldValue = program->stackValues->at(pos); if (oldValue.opcode == VALUE_TYPE_DYNAMIC_STRING) { programPopString(program, oldValue.opcode, oldValue.integerValue); } program->stackValues->at(pos) = value; if (value.opcode == VALUE_TYPE_DYNAMIC_STRING) { *(short*)(program->dynamicStrings + 4 + value.integerValue - 2) += 1; } } // fetch // 0x468678 static void opFetch(Program* program) { int addr = programStackPopInteger(program); ProgramValue value = program->stackValues->at(program->framePointer + addr); programStackPushValue(program, value); } // 0x46873C static void opConditionalOperatorNotEqual(Program* program) { ProgramValue value[2]; char stringBuffers[2][80]; char* strings[2]; int result; for (int arg = 0; arg < 2; arg++) { value[arg] = programStackPopValue(program); } switch (value[1].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: strings[1] = programGetString(program, value[1].opcode, value[1].integerValue); switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: strings[0] = programGetString(program, value[0].opcode, value[0].integerValue); break; case VALUE_TYPE_FLOAT: sprintf(stringBuffers[0], "%.5f", value[0].floatValue); strings[0] = stringBuffers[0]; break; case VALUE_TYPE_INT: sprintf(stringBuffers[0], "%d", value[0].integerValue); strings[0] = stringBuffers[0]; break; default: assert(false && "Should be unreachable"); } result = strcmp(strings[1], strings[0]) != 0; break; case VALUE_TYPE_FLOAT: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: sprintf(stringBuffers[1], "%.5f", value[1].floatValue); strings[1] = stringBuffers[1]; strings[0] = programGetString(program, value[0].opcode, value[0].integerValue); result = strcmp(strings[1], strings[0]) != 0; break; case VALUE_TYPE_FLOAT: result = value[1].floatValue != value[0].floatValue; break; case VALUE_TYPE_INT: result = value[1].floatValue != (float)value[0].integerValue; break; default: assert(false && "Should be unreachable"); } break; case VALUE_TYPE_INT: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: sprintf(stringBuffers[1], "%d", value[1].integerValue); strings[1] = stringBuffers[1]; strings[0] = programGetString(program, value[0].opcode, value[0].integerValue); result = strcmp(strings[1], strings[0]) != 0; break; case VALUE_TYPE_FLOAT: result = (float)value[1].integerValue != value[0].floatValue; break; case VALUE_TYPE_INT: result = value[1].integerValue != value[0].integerValue; break; case VALUE_TYPE_PTR: result = (intptr_t)(value[1].integerValue) != (intptr_t)(value[0].pointerValue); break; default: assert(false && "Should be unreachable"); } break; case VALUE_TYPE_PTR: switch (value[0].opcode) { case VALUE_TYPE_INT: result = (intptr_t)(value[1].pointerValue) != (intptr_t)(value[0].integerValue); break; case VALUE_TYPE_PTR: result = value[1].pointerValue != value[0].pointerValue; break; default: assert(false && "Should be unreachable"); } break; default: assert(false && "Should be unreachable"); } programStackPushInteger(program, result); } // 0x468AA8 static void opConditionalOperatorEqual(Program* program) { ProgramValue value[2]; char stringBuffers[2][80]; char* strings[2]; int result; for (int arg = 0; arg < 2; arg++) { value[arg] = programStackPopValue(program); } switch (value[1].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: strings[1] = programGetString(program, value[1].opcode, value[1].integerValue); switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: strings[0] = programGetString(program, value[0].opcode, value[0].integerValue); break; case VALUE_TYPE_FLOAT: sprintf(stringBuffers[0], "%.5f", value[0].floatValue); strings[0] = stringBuffers[0]; break; case VALUE_TYPE_INT: sprintf(stringBuffers[0], "%d", value[0].integerValue); strings[0] = stringBuffers[0]; break; default: assert(false && "Should be unreachable"); } result = strcmp(strings[1], strings[0]) == 0; break; case VALUE_TYPE_FLOAT: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: sprintf(stringBuffers[1], "%.5f", value[1].floatValue); strings[1] = stringBuffers[1]; strings[0] = programGetString(program, value[0].opcode, value[0].integerValue); result = strcmp(strings[1], strings[0]) == 0; break; case VALUE_TYPE_FLOAT: result = value[1].floatValue == value[0].floatValue; break; case VALUE_TYPE_INT: result = value[1].floatValue == (float)value[0].integerValue; break; default: assert(false && "Should be unreachable"); } break; case VALUE_TYPE_INT: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: sprintf(stringBuffers[1], "%d", value[1].integerValue); strings[1] = stringBuffers[1]; strings[0] = programGetString(program, value[0].opcode, value[0].integerValue); result = strcmp(strings[1], strings[0]) == 0; break; case VALUE_TYPE_FLOAT: result = (float)value[1].integerValue == value[0].floatValue; break; case VALUE_TYPE_INT: result = value[1].integerValue == value[0].integerValue; break; case VALUE_TYPE_PTR: result = (intptr_t)(value[1].integerValue) == (intptr_t)(value[0].pointerValue); break; default: assert(false && "Should be unreachable"); } break; case VALUE_TYPE_PTR: switch (value[0].opcode) { case VALUE_TYPE_INT: result = (intptr_t)(value[1].pointerValue) == (intptr_t)(value[0].integerValue); break; case VALUE_TYPE_PTR: result = value[1].pointerValue == value[0].pointerValue; break; default: assert(false && "Should be unreachable"); } break; default: assert(false && "Should be unreachable"); } programStackPushInteger(program, result); } // 0x468E14 static void opConditionalOperatorLessThanEquals(Program* program) { ProgramValue value[2]; char stringBuffers[2][80]; char* strings[2]; int result; for (int arg = 0; arg < 2; arg++) { value[arg] = programStackPopValue(program); } switch (value[1].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: strings[1] = programGetString(program, value[1].opcode, value[1].integerValue); switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: strings[0] = programGetString(program, value[0].opcode, value[0].integerValue); break; case VALUE_TYPE_FLOAT: sprintf(stringBuffers[0], "%.5f", value[0].floatValue); strings[0] = stringBuffers[0]; break; case VALUE_TYPE_INT: sprintf(stringBuffers[0], "%d", value[0].integerValue); strings[0] = stringBuffers[0]; break; default: assert(false && "Should be unreachable"); } result = strcmp(strings[1], strings[0]) <= 0; break; case VALUE_TYPE_FLOAT: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: sprintf(stringBuffers[1], "%.5f", value[1].floatValue); strings[1] = stringBuffers[1]; strings[0] = programGetString(program, value[0].opcode, value[0].integerValue); result = strcmp(strings[1], strings[0]) <= 0; break; case VALUE_TYPE_FLOAT: result = value[1].floatValue <= value[0].floatValue; break; case VALUE_TYPE_INT: result = value[1].floatValue <= (float)value[0].integerValue; break; default: assert(false && "Should be unreachable"); } break; case VALUE_TYPE_INT: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: sprintf(stringBuffers[1], "%d", value[1].integerValue); strings[1] = stringBuffers[1]; strings[0] = programGetString(program, value[0].opcode, value[0].integerValue); result = strcmp(strings[1], strings[0]) <= 0; break; case VALUE_TYPE_FLOAT: result = (float)value[1].integerValue <= value[0].floatValue; break; case VALUE_TYPE_INT: result = value[1].integerValue <= value[0].integerValue; break; default: assert(false && "Should be unreachable"); } break; default: assert(false && "Should be unreachable"); } programStackPushInteger(program, result); } // 0x469180 static void opConditionalOperatorGreaterThanEquals(Program* program) { ProgramValue value[2]; char stringBuffers[2][80]; char* strings[2]; int result; // NOTE: original code does not use loop for (int arg = 0; arg < 2; arg++) { value[arg] = programStackPopValue(program); } switch (value[1].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: strings[1] = programGetString(program, value[1].opcode, value[1].integerValue); switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: strings[0] = programGetString(program, value[0].opcode, value[0].integerValue); break; case VALUE_TYPE_FLOAT: sprintf(stringBuffers[0], "%.5f", value[0].floatValue); strings[0] = stringBuffers[0]; break; case VALUE_TYPE_INT: sprintf(stringBuffers[0], "%d", value[0].integerValue); strings[0] = stringBuffers[0]; break; default: assert(false && "Should be unreachable"); } result = strcmp(strings[1], strings[0]) >= 0; break; case VALUE_TYPE_FLOAT: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: sprintf(stringBuffers[1], "%.5f", value[1].floatValue); strings[1] = stringBuffers[1]; strings[0] = programGetString(program, value[0].opcode, value[0].integerValue); result = strcmp(strings[1], strings[0]) >= 0; break; case VALUE_TYPE_FLOAT: result = value[1].floatValue >= value[0].floatValue; break; case VALUE_TYPE_INT: result = value[1].floatValue >= (float)value[0].integerValue; break; default: assert(false && "Should be unreachable"); } break; case VALUE_TYPE_INT: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: sprintf(stringBuffers[1], "%d", value[1].integerValue); strings[1] = stringBuffers[1]; strings[0] = programGetString(program, value[0].opcode, value[0].integerValue); result = strcmp(strings[1], strings[0]) >= 0; break; case VALUE_TYPE_FLOAT: result = (float)value[1].integerValue >= value[0].floatValue; break; case VALUE_TYPE_INT: result = value[1].integerValue >= value[0].integerValue; break; default: assert(false && "Should be unreachable"); } break; default: assert(false && "Should be unreachable"); } programStackPushInteger(program, result); } // 0x4694EC static void opConditionalOperatorLessThan(Program* program) { ProgramValue value[2]; char text[2][80]; char* str_ptr[2]; int result; for (int arg = 0; arg < 2; arg++) { value[arg] = programStackPopValue(program); } switch (value[1].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: str_ptr[1] = programGetString(program, value[1].opcode, value[1].integerValue); switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: str_ptr[0] = programGetString(program, value[0].opcode, value[0].integerValue); break; case VALUE_TYPE_FLOAT: sprintf(text[0], "%.5f", value[0].floatValue); str_ptr[0] = text[0]; break; case VALUE_TYPE_INT: sprintf(text[0], "%d", value[0].integerValue); str_ptr[0] = text[0]; break; default: assert(false && "Should be unreachable"); } result = strcmp(str_ptr[1], str_ptr[0]) < 0; break; case VALUE_TYPE_FLOAT: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: sprintf(text[1], "%.5f", value[1].floatValue); str_ptr[1] = text[1]; str_ptr[0] = programGetString(program, value[0].opcode, value[0].integerValue); result = strcmp(str_ptr[1], str_ptr[0]) < 0; break; case VALUE_TYPE_FLOAT: result = value[1].floatValue < value[0].floatValue; break; case VALUE_TYPE_INT: result = value[1].floatValue < (float)value[0].integerValue; break; default: assert(false && "Should be unreachable"); } break; case VALUE_TYPE_INT: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: sprintf(text[1], "%d", value[1].integerValue); str_ptr[1] = text[1]; str_ptr[0] = programGetString(program, value[0].opcode, value[0].integerValue); result = strcmp(str_ptr[1], str_ptr[0]) < 0; break; case VALUE_TYPE_FLOAT: result = (float)value[1].integerValue < value[0].floatValue; break; case VALUE_TYPE_INT: result = value[1].integerValue < value[0].integerValue; break; default: assert(false && "Should be unreachable"); } break; default: assert(false && "Should be unreachable"); } programStackPushInteger(program, result); } // 0x469858 static void opConditionalOperatorGreaterThan(Program* program) { ProgramValue value[2]; char stringBuffers[2][80]; char* strings[2]; int result; for (int arg = 0; arg < 2; arg++) { value[arg] = programStackPopValue(program); } switch (value[1].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: strings[1] = programGetString(program, value[1].opcode, value[1].integerValue); switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: strings[0] = programGetString(program, value[0].opcode, value[0].integerValue); break; case VALUE_TYPE_FLOAT: sprintf(stringBuffers[0], "%.5f", value[0].floatValue); strings[0] = stringBuffers[0]; break; case VALUE_TYPE_INT: sprintf(stringBuffers[0], "%d", value[0].integerValue); strings[0] = stringBuffers[0]; break; default: assert(false && "Should be unreachable"); } result = strcmp(strings[1], strings[0]) > 0; break; case VALUE_TYPE_FLOAT: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: sprintf(stringBuffers[1], "%.5f", value[1].floatValue); strings[1] = stringBuffers[1]; strings[0] = programGetString(program, value[0].opcode, value[0].integerValue); result = strcmp(strings[1], strings[0]) > 0; break; case VALUE_TYPE_FLOAT: result = value[1].floatValue > value[0].floatValue; break; case VALUE_TYPE_INT: result = value[1].floatValue > (float)value[0].integerValue; break; default: assert(false && "Should be unreachable"); } break; case VALUE_TYPE_INT: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: sprintf(stringBuffers[1], "%d", value[1].integerValue); strings[1] = stringBuffers[1]; strings[0] = programGetString(program, value[0].opcode, value[0].integerValue); result = strcmp(strings[1], strings[0]) > 0; break; case VALUE_TYPE_FLOAT: result = (float)value[1].integerValue > value[0].floatValue; break; case VALUE_TYPE_INT: result = value[1].integerValue > value[0].integerValue; break; default: assert(false && "Should be unreachable"); } break; default: assert(false && "Should be unreachable"); } programStackPushInteger(program, result); } // 0x469BC4 static void opAdd(Program* program) { ProgramValue value[2]; char* strings[2]; char* tempString; for (int arg = 0; arg < 2; arg++) { value[arg] = programStackPopValue(program); } switch (value[1].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: strings[1] = programGetString(program, value[1].opcode, value[1].integerValue); switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: tempString = programGetString(program, value[0].opcode, value[0].integerValue); strings[0] = (char*)internal_malloc_safe(strlen(tempString) + 1, __FILE__, __LINE__); // "..\\int\\INTRPRET.C", 1002 strcpy(strings[0], tempString); break; case VALUE_TYPE_FLOAT: strings[0] = (char*)internal_malloc_safe(80, __FILE__, __LINE__); // "..\\int\\INTRPRET.C", 1011 sprintf(strings[0], "%.5f", value[0].floatValue); break; case VALUE_TYPE_INT: strings[0] = (char*)internal_malloc_safe(80, __FILE__, __LINE__); // "..\\int\\INTRPRET.C", 1007 sprintf(strings[0], "%d", value[0].integerValue); break; case VALUE_TYPE_PTR: strings[0] = (char*)internal_malloc_safe(80, __FILE__, __LINE__); sprintf(strings[0], "%p", value[0].pointerValue); break; } tempString = (char*)internal_malloc_safe(strlen(strings[1]) + strlen(strings[0]) + 1, __FILE__, __LINE__); // "..\\int\\INTRPRET.C", 1015 strcpy(tempString, strings[1]); strcat(tempString, strings[0]); programStackPushString(program, tempString); internal_free_safe(strings[0], __FILE__, __LINE__); // "..\\int\\INTRPRET.C", 1019 internal_free_safe(tempString, __FILE__, __LINE__); // "..\\int\\INTRPRET.C", 1020 break; case VALUE_TYPE_FLOAT: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: strings[0] = programGetString(program, value[0].opcode, value[0].integerValue); tempString = (char*)internal_malloc_safe(strlen(strings[0]) + 80, __FILE__, __LINE__); // "..\\int\\INTRPRET.C", 1039 sprintf(tempString, "%.5f", value[1].floatValue); strcat(tempString, strings[0]); programStackPushString(program, tempString); internal_free_safe(tempString, __FILE__, __LINE__); // "..\\int\\INTRPRET.C", 1044 break; case VALUE_TYPE_FLOAT: programStackPushFloat(program, value[1].floatValue + value[0].floatValue); break; case VALUE_TYPE_INT: programStackPushFloat(program, value[1].floatValue + (float)value[0].integerValue); break; } break; case VALUE_TYPE_INT: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: strings[0] = programGetString(program, value[0].opcode, value[0].integerValue); tempString = (char*)internal_malloc_safe(strlen(strings[0]) + 80, __FILE__, __LINE__); // "..\\int\\INTRPRET.C", 1070 sprintf(tempString, "%d", value[1].integerValue); strcat(tempString, strings[0]); programStackPushString(program, tempString); internal_free_safe(tempString, __FILE__, __LINE__); // "..\\int\\INTRPRET.C", 1075 break; case VALUE_TYPE_FLOAT: programStackPushFloat(program, (float)value[1].integerValue + value[0].floatValue); break; case VALUE_TYPE_INT: if ((value[0].integerValue <= 0 || (INT_MAX - value[0].integerValue) > value[1].integerValue) && (value[0].integerValue >= 0 || (INT_MIN - value[0].integerValue) <= value[1].integerValue)) { programStackPushInteger(program, value[1].integerValue + value[0].integerValue); } else { programStackPushFloat(program, (float)value[1].integerValue + (float)value[0].integerValue); } break; } break; } } // 0x46A1D8 static void opSubtract(Program* program) { ProgramValue value[2]; for (int arg = 0; arg < 2; arg++) { value[arg] = programStackPopValue(program); } switch (value[1].opcode) { case VALUE_TYPE_FLOAT: switch (value[0].opcode) { case VALUE_TYPE_FLOAT: programStackPushFloat(program, value[1].floatValue - value[0].floatValue); break; default: programStackPushFloat(program, value[1].floatValue - (float)value[0].integerValue); break; } break; case VALUE_TYPE_INT: switch (value[0].opcode) { case VALUE_TYPE_FLOAT: programStackPushFloat(program, value[1].integerValue - value[0].floatValue); break; default: programStackPushInteger(program, value[1].integerValue - value[0].integerValue); break; } break; } } // 0x46A300 static void opMultiply(Program* program) { ProgramValue value[2]; for (int arg = 0; arg < 2; arg++) { value[arg] = programStackPopValue(program); } switch (value[1].opcode) { case VALUE_TYPE_FLOAT: switch (value[0].opcode) { case VALUE_TYPE_FLOAT: programStackPushFloat(program, value[1].floatValue * value[0].floatValue); break; default: programStackPushFloat(program, value[1].floatValue * value[0].integerValue); break; } break; case VALUE_TYPE_INT: switch (value[0].opcode) { case VALUE_TYPE_FLOAT: programStackPushFloat(program, value[1].integerValue * value[0].floatValue); break; default: programStackPushInteger(program, value[0].integerValue * value[1].integerValue); break; } break; } } // 0x46A424 static void opDivide(Program* program) { ProgramValue value[2]; float divisor; for (int arg = 0; arg < 2; arg++) { value[arg] = programStackPopValue(program); } switch (value[1].opcode) { case VALUE_TYPE_FLOAT: if (value[0].opcode == VALUE_TYPE_FLOAT) { divisor = value[0].floatValue; } else { divisor = (float)value[0].integerValue; } if ((int)divisor & 0x7FFFFFFF) { programFatalError("Division (DIV) by zero"); } programStackPushFloat(program, value[1].floatValue / divisor); break; case VALUE_TYPE_INT: if (value[0].opcode == VALUE_TYPE_FLOAT) { divisor = value[0].floatValue; if ((int)divisor & 0x7FFFFFFF) { programFatalError("Division (DIV) by zero"); } programStackPushFloat(program, (float)value[1].integerValue / divisor); } else { if (value[0].integerValue == 0) { programFatalError("Division (DIV) by zero"); } programStackPushInteger(program, value[1].integerValue / value[0].integerValue); } break; } } // 0x46A5B8 static void opModulo(Program* program) { ProgramValue value[2]; for (int arg = 0; arg < 2; arg++) { value[arg] = programStackPopValue(program); } if (value[1].opcode == VALUE_TYPE_FLOAT) { programFatalError("Trying to MOD a float"); } if (value[1].opcode != VALUE_TYPE_INT) { return; } if (value[0].opcode == VALUE_TYPE_FLOAT) { programFatalError("Trying to MOD with a float"); } if (value[0].integerValue == 0) { programFatalError("Division (MOD) by zero"); } programStackPushInteger(program, value[1].integerValue % value[0].integerValue); } // 0x46A6B4 static void opLogicalOperatorAnd(Program* program) { ProgramValue value[2]; int result; for (int arg = 0; arg < 2; arg++) { value[arg] = programStackPopValue(program); } switch (value[1].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: result = 1; break; case VALUE_TYPE_FLOAT: result = (value[0].integerValue & 0x7FFFFFFF) != 0; break; case VALUE_TYPE_INT: result = value[0].integerValue != 0; break; case VALUE_TYPE_PTR: result = value[0].pointerValue != nullptr; break; default: assert(false && "Should be unreachable"); } break; case VALUE_TYPE_FLOAT: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: result = value[1].integerValue != 0; break; case VALUE_TYPE_FLOAT: result = (value[1].integerValue & 0x7FFFFFFF) && (value[0].integerValue & 0x7FFFFFFF); break; case VALUE_TYPE_INT: result = (value[1].integerValue & 0x7FFFFFFF) && (value[0].integerValue != 0); break; case VALUE_TYPE_PTR: result = (value[1].integerValue & 0x7FFFFFFF) && (value[0].pointerValue != nullptr); break; default: assert(false && "Should be unreachable"); } break; case VALUE_TYPE_INT: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: result = value[1].integerValue != 0; break; case VALUE_TYPE_FLOAT: result = (value[1].integerValue != 0) && (value[0].integerValue & 0x7FFFFFFF); break; case VALUE_TYPE_INT: result = (value[1].integerValue != 0) && (value[0].integerValue != 0); break; case VALUE_TYPE_PTR: result = (value[1].integerValue != 0) && (value[0].pointerValue != nullptr); break; default: assert(false && "Should be unreachable"); } break; case VALUE_TYPE_PTR: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: result = value[1].pointerValue != nullptr; break; case VALUE_TYPE_FLOAT: result = (value[1].pointerValue != nullptr) && (value[0].integerValue & 0x7FFFFFFF); break; case VALUE_TYPE_INT: result = (value[1].pointerValue != nullptr) && (value[0].integerValue != 0); break; case VALUE_TYPE_PTR: result = (value[1].pointerValue != nullptr) && (value[0].pointerValue != nullptr); break; default: assert(false && "Should be unreachable"); } break; default: assert(false && "Should be unreachable"); } programStackPushInteger(program, result); } // 0x46A8D8 static void opLogicalOperatorOr(Program* program) { ProgramValue value[2]; int result; for (int arg = 0; arg < 2; arg++) { value[arg] = programStackPopValue(program); } switch (value[1].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: case VALUE_TYPE_FLOAT: case VALUE_TYPE_INT: case VALUE_TYPE_PTR: result = 1; break; default: assert(false && "Should be unreachable"); } break; case VALUE_TYPE_FLOAT: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: result = 1; break; case VALUE_TYPE_FLOAT: result = (value[1].integerValue & 0x7FFFFFFF) || (value[0].integerValue & 0x7FFFFFFF); break; case VALUE_TYPE_INT: result = (value[1].integerValue & 0x7FFFFFFF) || (value[0].integerValue != 0); break; case VALUE_TYPE_PTR: result = (value[1].integerValue & 0x7FFFFFFF) || (value[0].pointerValue != nullptr); break; default: assert(false && "Should be unreachable"); } break; case VALUE_TYPE_INT: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: result = 1; break; case VALUE_TYPE_FLOAT: result = (value[1].integerValue != 0) || (value[0].integerValue & 0x7FFFFFFF); break; case VALUE_TYPE_INT: result = (value[1].integerValue != 0) || (value[0].integerValue != 0); break; case VALUE_TYPE_PTR: result = (value[1].integerValue != 0) || (value[0].pointerValue != nullptr); break; default: assert(false && "Should be unreachable"); } break; case VALUE_TYPE_PTR: switch (value[0].opcode) { case VALUE_TYPE_STRING: case VALUE_TYPE_DYNAMIC_STRING: result = 1; break; case VALUE_TYPE_FLOAT: result = (value[1].pointerValue != nullptr) || (value[0].integerValue & 0x7FFFFFFF); break; case VALUE_TYPE_INT: result = (value[1].pointerValue != nullptr) || (value[0].integerValue != 0); break; case VALUE_TYPE_PTR: result = (value[1].pointerValue != nullptr) || (value[0].pointerValue != nullptr); break; default: assert(false && "Should be unreachable"); } break; default: assert(false && "Should be unreachable"); } programStackPushInteger(program, result); } // 0x46AACC static void opLogicalOperatorNot(Program* program) { ProgramValue value = programStackPopValue(program); programStackPushInteger(program, value.integerValue == 0); } // 0x46AB2C static void opUnaryMinus(Program* program) { int value = programStackPopInteger(program); programStackPushInteger(program, -value); } // 0x46AB84 static void opBitwiseOperatorNot(Program* program) { int value = programStackPopInteger(program); programStackPushInteger(program, ~value); } // floor // 0x46ABDC static void opFloor(Program* program) { ProgramValue value = programStackPopValue(program); if (value.opcode == VALUE_TYPE_STRING) { programFatalError("Invalid arg given to floor()"); } else if (value.opcode == VALUE_TYPE_FLOAT) { value.opcode = VALUE_TYPE_INT; value.integerValue = (int)value.floatValue; } programStackPushValue(program, value); } // 0x46AC78 static void opBitwiseOperatorAnd(Program* program) { ProgramValue value[2]; int result; for (int arg = 0; arg < 2; arg++) { value[arg] = programStackPopValue(program); } switch (value[1].opcode) { case VALUE_TYPE_FLOAT: switch (value[0].opcode) { case VALUE_TYPE_FLOAT: result = (int)value[1].floatValue & (int)value[0].floatValue; break; default: result = (int)value[1].floatValue & value[0].integerValue; break; } break; case VALUE_TYPE_INT: switch (value[0].opcode) { case VALUE_TYPE_FLOAT: result = value[1].integerValue & (int)value[0].floatValue; break; default: result = value[1].integerValue & value[0].integerValue; break; } break; default: return; } programStackPushInteger(program, result); } // 0x46ADA4 static void opBitwiseOperatorOr(Program* program) { ProgramValue value[2]; int result; for (int arg = 0; arg < 2; arg++) { value[arg] = programStackPopValue(program); } switch (value[1].opcode) { case VALUE_TYPE_FLOAT: switch (value[0].opcode) { case VALUE_TYPE_FLOAT: result = (int)value[1].floatValue | (int)value[0].floatValue; break; default: result = (int)value[1].floatValue | value[0].integerValue; break; } break; case VALUE_TYPE_INT: switch (value[0].opcode) { case VALUE_TYPE_FLOAT: result = value[1].integerValue | (int)value[0].floatValue; break; default: result = value[1].integerValue | value[0].integerValue; break; } break; default: return; } programStackPushInteger(program, result); } // 0x46AED0 static void opBitwiseOperatorXor(Program* program) { ProgramValue value[2]; int result; for (int arg = 0; arg < 2; arg++) { value[arg] = programStackPopValue(program); } switch (value[1].opcode) { case VALUE_TYPE_FLOAT: switch (value[0].opcode) { case VALUE_TYPE_FLOAT: result = (int)value[1].floatValue ^ (int)value[0].floatValue; break; default: result = (int)value[1].floatValue ^ value[0].integerValue; break; } break; case VALUE_TYPE_INT: switch (value[0].opcode) { case VALUE_TYPE_FLOAT: result = value[1].integerValue ^ (int)value[0].floatValue; break; default: result = value[1].integerValue ^ value[0].integerValue; break; } break; default: return; } programStackPushInteger(program, result); } // 0x46AFFC static void opSwapReturnStack(Program* program) { ProgramValue v1 = programReturnStackPopValue(program); ProgramValue v2 = programReturnStackPopValue(program); programReturnStackPushValue(program, v1); programReturnStackPushValue(program, v2); } // 0x46B070 static void opLeaveCriticalSection(Program* program) { program->flags &= ~PROGRAM_FLAG_CRITICAL_SECTION; } // 0x46B078 static void opEnterCriticalSection(Program* program) { program->flags |= PROGRAM_FLAG_CRITICAL_SECTION; } // 0x46B080 static void opJump(Program* program) { program->instructionPointer = programStackPopInteger(program); } // 0x46B108 static void opCall(Program* program) { int value = programStackPopInteger(program); unsigned char* ptr = program->procedures + 4 + 24 * value; int flags = stackReadInt32(ptr, 4); if ((flags & 4) != 0) { // TODO: Incomplete. } else { program->instructionPointer = stackReadInt32(ptr, 16); if ((flags & 0x10) != 0) { program->flags |= PROGRAM_FLAG_CRITICAL_SECTION; } } } // 0x46B590 static void op801F(Program* program) { program->field_84 = programStackPopInteger(program); program->field_7C = (int (*)(Program*))programStackPopPointer(program); program->flags = programStackPopInteger(program) & 0xFFFF; } // pop stack 2 -> set program address // 0x46B63C static void op801C(Program* program) { program->instructionPointer = programReturnStackPopInteger(program); } // 0x46B658 static void op801D(Program* program) { program->instructionPointer = programReturnStackPopInteger(program); program->flags |= PROGRAM_FLAG_0x40; } // 0x46B67C static void op8020(Program* program) { op801F(program); program->instructionPointer = programReturnStackPopInteger(program); } // 0x46B698 static void op8021(Program* program) { op801F(program); program->instructionPointer = programReturnStackPopInteger(program); program->flags |= PROGRAM_FLAG_0x40; } // 0x46B6BC static void op8025(Program* program) { ProgramValue value = programStackPopValue(program); op801F(program); program->instructionPointer = programReturnStackPopInteger(program); program->flags |= PROGRAM_FLAG_0x40; programStackPushValue(program, value); } // 0x46B73C static void op8026(Program* program) { ProgramValue value = programStackPopValue(program); op801F(program); Program* v1 = (Program*)programReturnStackPopPointer(program); v1->field_7C = (int (*)(Program*))programReturnStackPopPointer(program); v1->flags = programReturnStackPopInteger(program); program->instructionPointer = programReturnStackPopInteger(program); program->flags |= PROGRAM_FLAG_0x40; programStackPushValue(program, value); } // 0x46B808 static void op8022(Program* program) { op801F(program); Program* v1 = (Program*)programReturnStackPopPointer(program); v1->field_7C = (int (*)(Program*))programReturnStackPopPointer(program); v1->flags = programReturnStackPopInteger(program); program->instructionPointer = programReturnStackPopInteger(program); } // 0x46B86C static void op8023(Program* program) { op801F(program); Program* v1 = (Program*)programReturnStackPopPointer(program); v1->field_7C = (int (*)(Program*))programReturnStackPopPointer(program); v1->flags = programReturnStackPopInteger(program); program->instructionPointer = programReturnStackPopInteger(program); program->flags |= 0x40; } // pop value from stack 1 and push it to script popped from stack 2 // 0x46B8D8 static void op8024(Program* program) { ProgramValue value = programStackPopValue(program); op801F(program); Program* v10 = (Program*)programReturnStackPopPointer(program); v10->field_7C = (int (*)(Program*))programReturnStackPopPointer(program); v10->flags = programReturnStackPopInteger(program); if ((value.opcode & 0xF7FF) == VALUE_TYPE_STRING) { char* string = programGetString(program, value.opcode, value.integerValue); ProgramValue otherValue; otherValue.integerValue = programPushString(v10, string); otherValue.opcode = VALUE_TYPE_DYNAMIC_STRING; programStackPushValue(v10, otherValue); } else { programStackPushValue(v10, value); } if (v10->flags & 0x80) { program->flags &= ~0x80; } program->instructionPointer = programReturnStackPopInteger(program); v10->instructionPointer = programReturnStackPopInteger(v10); } // 0x46BA10 static void op801E(Program* program) { programReturnStackPopValue(program); } // 0x46BA2C static void opAtoD(Program* program) { ProgramValue value = programReturnStackPopValue(program); programStackPushValue(program, value); } // 0x46BA68 static void opDtoA(Program* program) { ProgramValue value = programStackPopValue(program); programReturnStackPushValue(program, value); } // 0x46BAC0 static void opExitProgram(Program* program) { program->flags |= PROGRAM_FLAG_EXITED; } // 0x46BAC8 static void opStopProgram(Program* program) { program->flags |= PROGRAM_FLAG_STOPPED; } // 0x46BAD0 static void opFetchGlobalVariable(Program* program) { int addr = programStackPopInteger(program); ProgramValue value = program->stackValues->at(program->basePointer + addr); programStackPushValue(program, value); } // 0x46BB5C static void opStoreGlobalVariable(Program* program) { int addr = programStackPopInteger(program); ProgramValue value = programStackPopValue(program); ProgramValue oldValue = program->stackValues->at(program->basePointer + addr); if (oldValue.opcode == VALUE_TYPE_DYNAMIC_STRING) { programPopString(program, oldValue.opcode, oldValue.integerValue); } program->stackValues->at(program->basePointer + addr) = value; if (value.opcode == VALUE_TYPE_DYNAMIC_STRING) { *(short*)(program->dynamicStrings + 4 + value.integerValue - 2) += 1; } } // 0x46BCAC static void opSwapStack(Program* program) { ProgramValue v1 = programStackPopValue(program); ProgramValue v2 = programStackPopValue(program); programStackPushValue(program, v1); programStackPushValue(program, v2); } // fetch_proc_address // 0x46BD60 static void opFetchProcedureAddress(Program* program) { int procedureIndex = programStackPopInteger(program); int address = stackReadInt32(program->procedures + 4 + sizeof(Procedure) * procedureIndex, 16); programStackPushInteger(program, address); } // Pops value from stack and throws it away. // // 0x46BE10 static void opPop(Program* program) { programStackPopValue(program); } // 0x46BE4C static void opDuplicate(Program* program) { ProgramValue value = programStackPopValue(program); programStackPushValue(program, value); programStackPushValue(program, value); } // 0x46BEC8 static void opStoreExternalVariable(Program* program) { ProgramValue addr = programStackPopValue(program); ProgramValue value = programStackPopValue(program); const char* identifier = programGetIdentifier(program, addr.integerValue); if (externalVariableSetValue(program, identifier, value)) { char err[256]; sprintf(err, "External variable %s does not exist\n", identifier); programFatalError(err); } } // 0x46BF90 static void opFetchExternalVariable(Program* program) { ProgramValue addr = programStackPopValue(program); const char* identifier = programGetIdentifier(program, addr.integerValue); ProgramValue value; if (externalVariableGetValue(program, identifier, value) != 0) { char err[256]; sprintf(err, "External variable %s does not exist\n", identifier); programFatalError(err); } programStackPushValue(program, value); } // 0x46C044 static void opExportProcedure(Program* program) { int procedureIndex = programStackPopInteger(program); int argumentCount = programStackPopInteger(program); unsigned char* proc_ptr = program->procedures + 4 + sizeof(Procedure) * procedureIndex; char *procedureName = programGetIdentifier(program, stackReadInt32(proc_ptr, 0)); int procedureAddress = stackReadInt32(proc_ptr, 16); if (externalProcedureCreate(program, procedureName, procedureAddress, argumentCount) != 0) { char err[256]; sprintf(err, "Error exporting procedure %s", procedureName); programFatalError(err); } } // 0x46C120 static void opExportVariable(Program* program) { ProgramValue addr = programStackPopValue(program); const char* identifier = programGetIdentifier(program, addr.integerValue); if (externalVariableCreate(program, identifier)) { char err[256]; sprintf(err, "External variable %s already exists", identifier); programFatalError(err); } } // 0x46C1A0 static void opExit(Program* program) { program->flags |= PROGRAM_FLAG_EXITED; Program* parent = program->parent; if (parent != NULL) { if ((parent->flags & PROGRAM_FLAG_0x0100) != 0) { parent->flags &= ~PROGRAM_FLAG_0x0100; } } if (!program->exited) { _removeProgramReferences_(program); program->exited = true; } } // 0x46C1EC static void opDetach(Program* program) { Program* parent = program->parent; if (parent == NULL) { return; } parent->flags &= ~PROGRAM_FLAG_0x20; parent->flags &= ~PROGRAM_FLAG_0x0100; if (parent->child == program) { parent->child = NULL; } } // callstart // 0x46C218 static void opCallStart(Program* program) { if (program->child) { programFatalError("Error, already have a child process\n"); } program->flags |= PROGRAM_FLAG_0x20; char* name = programStackPopString(program); name = _interpretMangleName(name); program->child = programCreateByPath(name); if (program->child == NULL) { char err[260]; sprintf(err, "Error spawning child %s", name); programFatalError(err); } programListNodeCreate(program->child); _interpret(program->child, 24); program->child->parent = program; program->child->field_84 = program->field_84; } // spawn // 0x46C344 static void opSpawn(Program* program) { if (program->child) { programFatalError("Error, already have a child process\n"); } program->flags |= PROGRAM_FLAG_0x0100; char* name = programStackPopString(program); name = _interpretMangleName(name); program->child = programCreateByPath(name); if (program->child == NULL) { char err[256]; sprintf(err, "Error spawning child %s", name); programFatalError(err); } programListNodeCreate(program->child); _interpret(program->child, 24); program->child->parent = program; program->child->field_84 = program->field_84; if ((program->flags & PROGRAM_FLAG_CRITICAL_SECTION) != 0) { program->child->flags |= PROGRAM_FLAG_CRITICAL_SECTION; _interpret(program->child, -1); } } // fork // 0x46C490 static Program* forkProgram(Program* program) { char* name = programStackPopString(program); name = _interpretMangleName(name); Program* forked = programCreateByPath(name); if (forked == NULL) { char err[256]; sprintf(err, "couldn't fork script '%s'", name); programFatalError(err); } programListNodeCreate(forked); _interpret(forked, 24); forked->field_84 = program->field_84; return forked; } // NOTE: Uncollapsed 0x46C490 with different signature. // // 0x46C490 static void opFork(Program* program) { forkProgram(program); } // 0x46C574 static void opExec(Program* program) { Program* parent = program->parent; Program* fork = forkProgram(program); if (parent != NULL) { fork->parent = parent; parent->child = fork; } fork->child = NULL; program->parent = NULL; program->flags |= PROGRAM_FLAG_EXITED; // probably inlining due to check for null parent = program->parent; if (parent != NULL) { if ((parent->flags & PROGRAM_FLAG_0x0100) != 0) { parent->flags &= ~PROGRAM_FLAG_0x0100; } } _purgeProgram(program); } // 0x46C5D8 static void opCheckProcedureArgumentCount(Program* program) { int expectedArgumentCount = programStackPopInteger(program); int procedureIndex = programStackPopInteger(program); int actualArgumentCount = stackReadInt32(program->procedures + 4 + 24 * procedureIndex, 20); if (actualArgumentCount != expectedArgumentCount) { const char* identifier = programGetIdentifier(program, stackReadInt32(program->procedures + 4 + 24 * procedureIndex, 0)); char err[260]; sprintf(err, "Wrong number of args to procedure %s\n", identifier); programFatalError(err); } } // lookup_string_proc // 0x46C6B4 static void opLookupStringProc(Program* program) { const char* procedureNameToLookup = programStackPopString(program); int procedureCount = stackReadInt32(program->procedures, 0); // Skip procedure count (4 bytes) and main procedure, which cannot be // looked up. unsigned char* procedurePtr = program->procedures + 4 + sizeof(Procedure); // Start with 1 since we've skipped main procedure, which is always at // index 0. for (int index = 1; index < procedureCount; index++) { int offset = stackReadInt32(procedurePtr, 0); const char* procedureName = programGetIdentifier(program, offset); if (compat_stricmp(procedureName, procedureNameToLookup) == 0) { programStackPushInteger(program, index); return; } procedurePtr += sizeof(Procedure); } char err[260]; sprintf(err, "Couldn't find string procedure %s\n", procedureNameToLookup); programFatalError(err); } // 0x46C7DC void interpreterRegisterOpcodeHandlers() { _Enabled = 1; // NOTE: The original code has different sorting. interpreterRegisterOpcode(OPCODE_NOOP, opNoop); interpreterRegisterOpcode(OPCODE_PUSH, opPush); interpreterRegisterOpcode(OPCODE_ENTER_CRITICAL_SECTION, opEnterCriticalSection); interpreterRegisterOpcode(OPCODE_LEAVE_CRITICAL_SECTION, opLeaveCriticalSection); interpreterRegisterOpcode(OPCODE_JUMP, opJump); interpreterRegisterOpcode(OPCODE_CALL, opCall); interpreterRegisterOpcode(OPCODE_CALL_AT, opDelayedCall); interpreterRegisterOpcode(OPCODE_CALL_WHEN, opConditionalCall); interpreterRegisterOpcode(OPCODE_CALLSTART, opCallStart); interpreterRegisterOpcode(OPCODE_EXEC, opExec); interpreterRegisterOpcode(OPCODE_SPAWN, opSpawn); interpreterRegisterOpcode(OPCODE_FORK, opFork); interpreterRegisterOpcode(OPCODE_A_TO_D, opAtoD); interpreterRegisterOpcode(OPCODE_D_TO_A, opDtoA); interpreterRegisterOpcode(OPCODE_EXIT, opExit); interpreterRegisterOpcode(OPCODE_DETACH, opDetach); interpreterRegisterOpcode(OPCODE_EXIT_PROGRAM, opExitProgram); interpreterRegisterOpcode(OPCODE_STOP_PROGRAM, opStopProgram); interpreterRegisterOpcode(OPCODE_FETCH_GLOBAL, opFetchGlobalVariable); interpreterRegisterOpcode(OPCODE_STORE_GLOBAL, opStoreGlobalVariable); interpreterRegisterOpcode(OPCODE_FETCH_EXTERNAL, opFetchExternalVariable); interpreterRegisterOpcode(OPCODE_STORE_EXTERNAL, opStoreExternalVariable); interpreterRegisterOpcode(OPCODE_EXPORT_VARIABLE, opExportVariable); interpreterRegisterOpcode(OPCODE_EXPORT_PROCEDURE, opExportProcedure); interpreterRegisterOpcode(OPCODE_SWAP, opSwapStack); interpreterRegisterOpcode(OPCODE_SWAPA, opSwapReturnStack); interpreterRegisterOpcode(OPCODE_POP, opPop); interpreterRegisterOpcode(OPCODE_DUP, opDuplicate); interpreterRegisterOpcode(OPCODE_POP_RETURN, op801C); interpreterRegisterOpcode(OPCODE_POP_EXIT, op801D); interpreterRegisterOpcode(OPCODE_POP_ADDRESS, op801E); interpreterRegisterOpcode(OPCODE_POP_FLAGS, op801F); interpreterRegisterOpcode(OPCODE_POP_FLAGS_RETURN, op8020); interpreterRegisterOpcode(OPCODE_POP_FLAGS_EXIT, op8021); interpreterRegisterOpcode(OPCODE_POP_FLAGS_RETURN_EXTERN, op8022); interpreterRegisterOpcode(OPCODE_POP_FLAGS_EXIT_EXTERN, op8023); interpreterRegisterOpcode(OPCODE_POP_FLAGS_RETURN_VAL_EXTERN, op8024); interpreterRegisterOpcode(OPCODE_POP_FLAGS_RETURN_VAL_EXIT, op8025); interpreterRegisterOpcode(OPCODE_POP_FLAGS_RETURN_VAL_EXIT_EXTERN, op8026); interpreterRegisterOpcode(OPCODE_CHECK_PROCEDURE_ARGUMENT_COUNT, opCheckProcedureArgumentCount); interpreterRegisterOpcode(OPCODE_LOOKUP_PROCEDURE_BY_NAME, opLookupStringProc); interpreterRegisterOpcode(OPCODE_POP_BASE, opPopBase); interpreterRegisterOpcode(OPCODE_POP_TO_BASE, opPopToBase); interpreterRegisterOpcode(OPCODE_PUSH_BASE, opPushBase); interpreterRegisterOpcode(OPCODE_SET_GLOBAL, op802C); interpreterRegisterOpcode(OPCODE_FETCH_PROCEDURE_ADDRESS, opFetchProcedureAddress); interpreterRegisterOpcode(OPCODE_DUMP, opDump); interpreterRegisterOpcode(OPCODE_IF, opIf); interpreterRegisterOpcode(OPCODE_WHILE, opWhile); interpreterRegisterOpcode(OPCODE_STORE, opStore); interpreterRegisterOpcode(OPCODE_FETCH, opFetch); interpreterRegisterOpcode(OPCODE_EQUAL, opConditionalOperatorEqual); interpreterRegisterOpcode(OPCODE_NOT_EQUAL, opConditionalOperatorNotEqual); interpreterRegisterOpcode(OPCODE_LESS_THAN_EQUAL, opConditionalOperatorLessThanEquals); interpreterRegisterOpcode(OPCODE_GREATER_THAN_EQUAL, opConditionalOperatorGreaterThanEquals); interpreterRegisterOpcode(OPCODE_LESS_THAN, opConditionalOperatorLessThan); interpreterRegisterOpcode(OPCODE_GREATER_THAN, opConditionalOperatorGreaterThan); interpreterRegisterOpcode(OPCODE_ADD, opAdd); interpreterRegisterOpcode(OPCODE_SUB, opSubtract); interpreterRegisterOpcode(OPCODE_MUL, opMultiply); interpreterRegisterOpcode(OPCODE_DIV, opDivide); interpreterRegisterOpcode(OPCODE_MOD, opModulo); interpreterRegisterOpcode(OPCODE_AND, opLogicalOperatorAnd); interpreterRegisterOpcode(OPCODE_OR, opLogicalOperatorOr); interpreterRegisterOpcode(OPCODE_BITWISE_AND, opBitwiseOperatorAnd); interpreterRegisterOpcode(OPCODE_BITWISE_OR, opBitwiseOperatorOr); interpreterRegisterOpcode(OPCODE_BITWISE_XOR, opBitwiseOperatorXor); interpreterRegisterOpcode(OPCODE_BITWISE_NOT, opBitwiseOperatorNot); interpreterRegisterOpcode(OPCODE_FLOOR, opFloor); interpreterRegisterOpcode(OPCODE_NOT, opLogicalOperatorNot); interpreterRegisterOpcode(OPCODE_NEGATE, opUnaryMinus); interpreterRegisterOpcode(OPCODE_WAIT, opWait); interpreterRegisterOpcode(OPCODE_CANCEL, opCancel); interpreterRegisterOpcode(OPCODE_CANCEL_ALL, opCancelAll); interpreterRegisterOpcode(OPCODE_START_CRITICAL, opEnterCriticalSection); interpreterRegisterOpcode(OPCODE_END_CRITICAL, opLeaveCriticalSection); _initIntlib(); _initExport(); } // 0x46CC68 void _interpretClose() { externalVariablesClear(); _intlibClose(); } // 0x46CCA4 void _interpret(Program* program, int a2) { char err[260]; Program* oldCurrentProgram = gInterpreterCurrentProgram; if (!_Enabled) { return; } if (_busy) { return; } if (program->exited || (program->flags & PROGRAM_FLAG_0x20) != 0 || (program->flags & PROGRAM_FLAG_0x0100) != 0) { return; } if (program->field_78 == -1) { program->field_78 = 1000 * _timerFunc() / _timerTick; } gInterpreterCurrentProgram = program; if (setjmp(program->env)) { gInterpreterCurrentProgram = oldCurrentProgram; program->flags |= PROGRAM_FLAG_EXITED | PROGRAM_FLAG_0x04; return; } if ((program->flags & PROGRAM_FLAG_CRITICAL_SECTION) != 0 && a2 < 3) { a2 = 3; } while ((program->flags & PROGRAM_FLAG_CRITICAL_SECTION) != 0 || --a2 != -1) { if ((program->flags & (PROGRAM_FLAG_EXITED | PROGRAM_FLAG_0x04 | PROGRAM_FLAG_STOPPED | PROGRAM_FLAG_0x20 | PROGRAM_FLAG_0x40 | PROGRAM_FLAG_0x0100)) != 0) { break; } if (program->exited) { break; } if ((program->flags & PROGRAM_FLAG_0x10) != 0) { _busy = 1; if (program->field_7C != NULL) { if (!program->field_7C(program)) { _busy = 0; continue; } } _busy = 0; program->field_7C = NULL; program->flags &= ~PROGRAM_FLAG_0x10; } int instructionPointer = program->instructionPointer; program->instructionPointer = instructionPointer + 2; opcode_t opcode = stackReadInt16(program->data, instructionPointer); // TODO: Replace with field_82 and field_80? program->flags &= 0xFFFF; program->flags |= (opcode << 16); if (!((opcode >> 8) & 0x80)) { sprintf(err, "Bad opcode %x %c %d.", opcode, opcode, opcode); programFatalError(err); } unsigned int opcodeIndex = opcode & 0x3FF; OpcodeHandler* handler = gInterpreterOpcodeHandlers[opcodeIndex]; if (handler == NULL) { sprintf(err, "Undefined opcode %x.", opcode); programFatalError(err); } handler(program); } if ((program->flags & PROGRAM_FLAG_EXITED) != 0) { if (program->parent != NULL) { if (program->parent->flags & PROGRAM_FLAG_0x20) { program->parent->flags &= ~PROGRAM_FLAG_0x20; program->parent->child = NULL; program->parent = NULL; } } } program->flags &= ~PROGRAM_FLAG_0x40; gInterpreterCurrentProgram = oldCurrentProgram; programMarkHeap(program); } // Prepares program stacks for executing proc at [address]. // // 0x46CED0 static void _setupCallWithReturnVal(Program* program, int address, int returnAddress) { // Save current instruction pointer programReturnStackPushInteger(program, program->instructionPointer); // Save return address programReturnStackPushInteger(program, returnAddress); // Save program flags programStackPushInteger(program, program->flags & 0xFFFF); programStackPushPointer(program, (void*)program->field_7C); programStackPushInteger(program, program->field_84); program->flags &= ~0xFFFF; program->instructionPointer = address; } // 0x46CF9C static void _setupExternalCallWithReturnVal(Program* program1, Program* program2, int address, int a4) { programReturnStackPushInteger(program2, program2->instructionPointer); programReturnStackPushInteger(program2, program1->flags & 0xFFFF); programReturnStackPushPointer(program2, (void*)program1->field_7C); programReturnStackPushPointer(program2, program1); programReturnStackPushInteger(program2, a4); programStackPushInteger(program2, program2->flags & 0xFFFF); programStackPushPointer(program2, (void*)program2->field_7C); programStackPushInteger(program2, program2->field_84); program2->flags &= ~0xFFFF; program2->instructionPointer = address; program2->field_84 = program1->field_84; program1->flags |= PROGRAM_FLAG_0x20; } // 0x46DB58 void _executeProc(Program* program, int procedure_index) { Program* external_program; char* identifier; int address; int arguments_count; unsigned char* procedure_ptr; int flags; char err[256]; Program* v12; procedure_ptr = program->procedures + 4 + 24 * procedure_index; flags = stackReadInt32(procedure_ptr, 4); if (!(flags & PROCEDURE_FLAG_IMPORTED)) { address = stackReadInt32(procedure_ptr, 16); _setupCallWithReturnVal(program, address, 20); programStackPushInteger(program, 0); if (!(flags & PROCEDURE_FLAG_CRITICAL)) { return; } program->flags |= PROGRAM_FLAG_CRITICAL_SECTION; v12 = program; } else { identifier = programGetIdentifier(program, stackReadInt32(procedure_ptr, 0)); external_program = externalProcedureGetProgram(identifier, &address, &arguments_count); if (external_program == NULL) { sprintf(err, "External procedure %s not found\n", identifier); // TODO: Incomplete. // _interpretOutput(err); return; } if (arguments_count != 0) { sprintf(err, "External procedure cannot take arguments in interrupt context"); // TODO: Incomplete. // _interpretOutput(err); return; } _setupExternalCallWithReturnVal(program, external_program, address, 28); programStackPushInteger(external_program, 0); procedure_ptr = external_program->procedures + 4 + 24 * procedure_index; flags = stackReadInt32(procedure_ptr, 4); if (!(flags & PROCEDURE_FLAG_CRITICAL)) { return; } external_program->flags |= PROGRAM_FLAG_CRITICAL_SECTION; v12 = external_program; } _interpret(v12, 0); } // Returns index of the procedure with specified name or -1 if no such // procedure exists. // // 0x46DCD0 int programFindProcedure(Program* program, const char* name) { int procedureCount = stackReadInt32(program->procedures, 0); unsigned char* ptr = program->procedures + 4; for (int index = 0; index < procedureCount; index++) { int identifierOffset = stackReadInt32(ptr, offsetof(Procedure, field_0)); if (compat_stricmp((char*)(program->identifiers + identifierOffset), name) == 0) { return index; } ptr += sizeof(Procedure); } return -1; } // 0x46DD2C void _executeProcedure(Program* program, int procedure_index) { Program* external_program; char* identifier; int address; int arguments_count; unsigned char* procedure_ptr; int flags; char err[256]; jmp_buf jmp_buf; Program* v13; procedure_ptr = program->procedures + 4 + 24 * procedure_index; flags = stackReadInt32(procedure_ptr, 4); if (flags & 0x04) { identifier = programGetIdentifier(program, stackReadInt32(procedure_ptr, 0)); external_program = externalProcedureGetProgram(identifier, &address, &arguments_count); if (external_program == NULL) { sprintf(err, "External procedure %s not found\n", identifier); // TODO: Incomplete. // _interpretOutput(err); return; } if (arguments_count != 0) { sprintf(err, "External procedure cannot take arguments in interrupt context"); // TODO: Incomplete. // _interpretOutput(err); return; } _setupExternalCallWithReturnVal(program, external_program, address, 32); programStackPushInteger(external_program, 0); memcpy(jmp_buf, program->env, sizeof(jmp_buf)); v13 = external_program; } else { address = stackReadInt32(procedure_ptr, 16); _setupCallWithReturnVal(program, address, 24); // Push number of arguments. It's always zero for built-in procs. This // number is consumed by 0x802B. programStackPushInteger(program, 0); memcpy(jmp_buf, program->env, sizeof(jmp_buf)); v13 = program; } _interpret(v13, -1); memcpy(v13->env, jmp_buf, sizeof(jmp_buf)); } // 0x46DEE4 static void _doEvents() { // TODO: Incomplete. } // 0x46E10C static void programListNodeFree(ProgramListNode* programListNode) { ProgramListNode* tmp; tmp = programListNode->next; if (tmp != NULL) { tmp->prev = programListNode->prev; } tmp = programListNode->prev; if (tmp != NULL) { tmp->next = programListNode->next; } else { gInterpreterProgramListHead = programListNode->next; } programFree(programListNode->program); internal_free_safe(programListNode, __FILE__, __LINE__); // "..\\int\\INTRPRET.C", 2923 } // 0x46E154 void programListNodeCreate(Program* program) { program->flags |= PROGRAM_FLAG_0x02; ProgramListNode* programListNode = (ProgramListNode*)internal_malloc_safe(sizeof(*programListNode), __FILE__, __LINE__); // .\\int\\INTRPRET.C, 2907 programListNode->program = program; programListNode->next = gInterpreterProgramListHead; programListNode->prev = NULL; if (gInterpreterProgramListHead != NULL) { gInterpreterProgramListHead->prev = programListNode; } gInterpreterProgramListHead = programListNode; } // 0x46E1EC void _updatePrograms() { ProgramListNode* curr = gInterpreterProgramListHead; while (curr != NULL) { ProgramListNode* next = curr->next; if (curr->program != NULL) { _interpret(curr->program, _cpuBurstSize); if (curr->program->exited) { programListNodeFree(curr); } } curr = next; } _doEvents(); _updateIntLib(); } // 0x46E238 void programListFree() { ProgramListNode* curr = gInterpreterProgramListHead; while (curr != NULL) { ProgramListNode* next = curr->next; programListNodeFree(curr); curr = next; } } // 0x46E368 void interpreterRegisterOpcode(int opcode, OpcodeHandler* handler) { int index = opcode & 0x3FFF; if (index >= OPCODE_MAX_COUNT) { printf("Too many opcodes!\n"); exit(1); } gInterpreterOpcodeHandlers[index] = handler; } // 0x46E5EC static void interpreterPrintStats() { ProgramListNode* programListNode = gInterpreterProgramListHead; while (programListNode != NULL) { Program* program = programListNode->program; if (program != NULL) { int total = 0; if (program->dynamicStrings != NULL) { debugPrint("Program %s\n"); unsigned char* heap = program->dynamicStrings + sizeof(int); while (*(unsigned short*)heap != 0x8000) { int size = *(short*)heap; if (size >= 0) { int refcount = *(short*)(heap + sizeof(short)); debugPrint("Size: %d, ref: %d, string %s\n", size, refcount, (char*)(heap + sizeof(short) + sizeof(short))); } else { debugPrint("Free space, length %d\n", -size); } // TODO: Not sure about total, probably calculated wrong, check. heap += sizeof(short) + sizeof(short) + size; total += sizeof(short) + sizeof(short) + size; } debugPrint("Total length of heap %d, stored length %d\n", total, *(int*)(program->dynamicStrings)); } else { debugPrint("No string heap for program %s\n", program->name); } } programListNode = programListNode->next; } } void programStackPushValue(Program* program, ProgramValue& programValue) { if (program->stackValues->size() > 0x1000) { programFatalError("programStackPushValue: Stack overflow."); } program->stackValues->push_back(programValue); if (programValue.opcode == VALUE_TYPE_DYNAMIC_STRING) { *(short*)(program->dynamicStrings + 4 + programValue.integerValue - 2) += 1; } } void programStackPushInteger(Program* program, int value) { ProgramValue programValue; programValue.opcode = VALUE_TYPE_INT; programValue.integerValue = value; programStackPushValue(program, programValue); } void programStackPushFloat(Program* program, float value) { ProgramValue programValue; programValue.opcode = VALUE_TYPE_FLOAT; programValue.floatValue = value; programStackPushValue(program, programValue); } void programStackPushString(Program* program, char* value) { ProgramValue programValue; programValue.opcode = VALUE_TYPE_DYNAMIC_STRING; programValue.integerValue = programPushString(program, value); programStackPushValue(program, programValue); } void programStackPushPointer(Program* program, void* value) { ProgramValue programValue; programValue.opcode = VALUE_TYPE_PTR; programValue.pointerValue = value; programStackPushValue(program, programValue); } ProgramValue programStackPopValue(Program* program) { if (program->stackValues->empty()) { programFatalError("programStackPopValue: Stack underflow."); } ProgramValue programValue = program->stackValues->back(); program->stackValues->pop_back(); if (programValue.opcode == VALUE_TYPE_DYNAMIC_STRING) { programPopString(program, programValue.opcode, programValue.integerValue); } return programValue; } int programStackPopInteger(Program* program) { ProgramValue programValue = programStackPopValue(program); if (programValue.opcode != VALUE_TYPE_INT) { programFatalError("integer expected, got %x", programValue.opcode); } return programValue.integerValue; } float programStackPopFloat(Program* program) { ProgramValue programValue = programStackPopValue(program); if (programValue.opcode != VALUE_TYPE_INT) { programFatalError("float expected, got %x", programValue.opcode); } return programValue.floatValue; } char* programStackPopString(Program* program) { ProgramValue programValue = programStackPopValue(program); if ((programValue.opcode & VALUE_TYPE_MASK) != VALUE_TYPE_STRING) { programFatalError("string expected, got %x", programValue.opcode); } return programGetString(program, programValue.opcode, programValue.integerValue); } void* programStackPopPointer(Program* program) { ProgramValue programValue = programStackPopValue(program); if (programValue.opcode != VALUE_TYPE_PTR) { programFatalError("pointer expected, got %x", programValue.opcode); } return programValue.pointerValue; } void programReturnStackPushValue(Program* program, ProgramValue& programValue) { if (program->returnStackValues->size() > 0x1000) { programFatalError("programReturnStackPushValue: Stack overflow."); } program->returnStackValues->push_back(programValue); if (programValue.opcode == VALUE_TYPE_DYNAMIC_STRING) { *(short*)(program->dynamicStrings + 4 + programValue.integerValue - 2) += 1; } } void programReturnStackPushInteger(Program* program, int value) { ProgramValue programValue; programValue.opcode = VALUE_TYPE_INT; programValue.integerValue = value; programReturnStackPushValue(program, programValue); } void programReturnStackPushPointer(Program* program, void* value) { ProgramValue programValue; programValue.opcode = VALUE_TYPE_PTR; programValue.pointerValue = value; programReturnStackPushValue(program, programValue); } ProgramValue programReturnStackPopValue(Program* program) { if (program->returnStackValues->empty()) { programFatalError("programReturnStackPopValue: Stack underflow."); } ProgramValue programValue = program->returnStackValues->back(); program->returnStackValues->pop_back(); if (programValue.opcode == VALUE_TYPE_DYNAMIC_STRING) { programPopString(program, programValue.opcode, programValue.integerValue); } return programValue; } int programReturnStackPopInteger(Program* program) { ProgramValue programValue = programReturnStackPopValue(program); return programValue.integerValue; } void* programReturnStackPopPointer(Program* program) { ProgramValue programValue = programReturnStackPopValue(program); return programValue.pointerValue; } bool ProgramValue::isEmpty() { switch (opcode) { case VALUE_TYPE_INT: case VALUE_TYPE_STRING: return integerValue == 0; case VALUE_TYPE_FLOAT: return floatValue == 0.0; case VALUE_TYPE_PTR: return pointerValue == nullptr; } // Should be unreachable. return true; }