llvm-6502/lib/Support/MemoryObject.cpp

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//===- MemoryObject.cpp - Abstract memory interface -----------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/MemoryObject.h"
using namespace llvm;
MemoryObject::~MemoryObject() {
}
int MemoryObject::readBytes(uint64_t address,
uint64_t size,
uint8_t* buf,
uint64_t* copied) const {
uint64_t current = address;
uint64_t limit = getBase() + getExtent();
while (current - address < size && current < limit) {
if (readByte(current, &buf[(current - address)]))
return -1;
current++;
}
if (copied)
*copied = current - address;
return 0;
}