int baseAddr = vm.sbrk(fontstream.length);
vm.copyout(fontstream, baseAddr, fontstream.length);
vm.setUserInfo(0, baseAddr);
vm.setUserInfo(1, fontstream.length);
int baseAddr = vm.sbrk(fontstream.length);
vm.copyout(fontstream, baseAddr, fontstream.length);
vm.setUserInfo(0, baseAddr);
vm.setUserInfo(1, fontstream.length);