How many registers in custom VM?

Posted by DeadMG on Stack Overflow See other posts from Stack Overflow or by DeadMG
Published on 2010-06-01T09:55:35Z Indexed on 2010/06/01 12:43 UTC
Read the original article Hit count: 277

Filed under:

c++

|

vm

|

register

I'm designing a custom VM and am curious about how many registers I should use. Initially, I had 255, but I'm a little concerned about backing 255 pointers (a whole KB) on to the stack or heap every time I call a function, when most of them won't even be used. How many registers should I use?

© Stack Overflow or respective owner

Related posts about c++

C++ : C++ Primer (Stanley Lipmann) or The C++ programming language (special edition)

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a Computer Science degree (long2 time ago) .. I do know Java OOP but i am now trying to pick up C++. I do have C and of course data structure using C or pascal. I have started reading Bjarne Stroustrup book (The C++ Programming Language - Special Edition) but find it extremely difficult esp… >>> More
Which C++ book shold I get between "C++ Primer" vs "C++ Primer Plus"

as seen on Stack Overflow - Search for 'Stack Overflow'
I want to learn C++ by using Vim and MinGW as compiler. I'm interesting at "C++ Primer (4th Edition)" and "C++ Primer Plus (5th Edition)" but I don't know how about it different. It has no book store that I can review those books, so I want to know, what is the different between those book and which… >>> More
Managed c++ std::string not accessible in unmanaged c++

as seen on Stack Overflow - Search for 'Stack Overflow'
In unmanaged c++ dll i have a function which takes constant std::string as argument Prototype : void read ( const std::string &imageSpec_ ) I call this function from managed c++ dll by passing a std::string. When i debug the unmanaged c++ code the parameter imageSpec_ shows the value correctly… >>> More
I need help on my C++ assignment using MS Visual C++

as seen on Stack Overflow - Search for 'Stack Overflow'
Ok, so I don't want you to do my homework for me, but I'm a little lost with this final assignment and need all the help I can get. Learning about programming is tough enough, but doing it online is next to impossible for me... Now, to get to the program, I am going to paste what I have so far. This… >>> More
The Definitive C++ Book Guide and List

as seen on Stack Overflow - Search for 'Stack Overflow'
After more than a few questions about deciding on C++ books I thought we could make a better community wiki version. Providing QUALITY books and an approximate skill level. Maybe we can add a short blurb/description about each book that you have personally read / benefited from. Feel free to debate… >>> More

Related posts about vm

Converting an Oracle VM VirtualBox VM into an Oracle VM Server image

as seen on Oracle Blogs - Search for 'Oracle Blogs'
As we are working on tighter seemless moving of VM's between the 2 products, here are a few simple steps to convert an existing Oracle VM VirtualBox image over. Steps involved to make it easy/straightforward : (1) When creating a VM in Virtualbox, using Oracle Linux as an example, make sure that… >>> More
Manage a flexible and elastic Data Center with Oracle VM Manager (By Tarry Singh - PACKT Publishing)

as seen on Oracle Blogs - Search for 'Oracle Blogs'
For the ones looking at an easy reading and first good approach to Oracle VM Manager and VM Servers, I would recommend reading the following book even so it was written for 2.1.2 whereas we can use now Oracle VM 2.2 : Oracle VM Manager 2.1.2 Manage a Flexible and Elastic Data Center with Oracle… >>> More
Windows Azure VMs - New "Stopped" VM Options Provide Cost-effective Flexibility for On-Demand Workloads

as seen on Geeks with Blogs - Search for 'Geeks with Blogs'
Originally posted on: http://geekswithblogs.net/KeithMayer/archive/2013/06/22/windows-azure-vms---new-stopped-vm-options-provide-cost-effective.aspxDidn’t make it to TechEd this year? Don’t worry! This month, we’ll be releasing a new article series that highlights the Best of TechEd announcements… >>> More
Windows 2003 VM, not connecting to VM Network

as seen on Server Fault - Search for 'Server Fault'
I am running VMware's vSphere infrastructure. I have a windows 2003 VM that is suddenly not connected to the network. I can log into vSphere and see that the VM is running, but it does not connect to the VM network. The firewall on this VM is not running. The network adapter in the VM is configured… >>> More
Windows 2003 VM, not connecting to VM Network

as seen on Super User - Search for 'Super User'
I am running VMware's vSphere infrastructure. I have a windows 2003 VM that is suddenly not connected to the network. I can log into vSphere and see that the VM is running, but it does not connect to the VM network. The firewall on this VM is not running. The network adapter in the VM is configured… >>> More