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//===-- BrainFOpcodes.cpp - BrainF interpreter opcodes ------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===--------------------------------------------------------------------===//
#include "BrainFVM.h"
#include <cstdio>
opcode_func_t *BytecodeArray = 0;
size_t *JumpMap = 0;
uint8_t executed = 0;
BrainFTraceRecorder *Recorder = 0;
void op_plus(size_t pc, uint8_t *data) {
Recorder->record_simple(pc, '+');
*data += 1;
BytecodeArray[pc+1](pc+1, data);
}
void op_minus(size_t pc, uint8_t *data) {
Recorder->record_simple(pc, '-');
*data -= 1;
BytecodeArray[pc+1](pc+1, data);
}
void op_left(size_t pc, uint8_t *data) {
Recorder->record_simple(pc, '<');
BytecodeArray[pc+1](pc+1, data-1);
}
void op_right(size_t pc, uint8_t *data) {
Recorder->record_simple(pc, '>');
BytecodeArray[pc+1](pc+1, data+1);
}
void op_put(size_t pc, uint8_t *data) {
Recorder->record_simple(pc, '.');
putchar(*data);
BytecodeArray[pc+1](pc+1, data);
}
void op_get(size_t pc, uint8_t *data) {
Recorder->record_simple(pc, ',');
*data = getchar();
BytecodeArray[pc+1](pc+1, data);
}
void op_if(size_t pc, uint8_t *data) {
Recorder->record(pc, '[');
size_t new_pc = pc+1;
if (!*data) new_pc = JumpMap[pc]+1;
BytecodeArray[new_pc](new_pc, data);
}
void op_back(size_t pc, uint8_t *data) {
Recorder->record_simple(pc, ']');
size_t new_pc = JumpMap[pc];
BytecodeArray[new_pc](new_pc, data);
}
void op_end(size_t, uint8_t *) {
return;
}
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