Recent content by blueshogun96

Hey, I've been reading information on how to use Intel's VMX instructions for CPU virtualization. I think I understand the concept of how the instructions work, but I still don't understand how to use the instructions. Do I make calls to the instructions that enable virtualization, then start...

It's been quite a while again :P Lately, I've been having computer problems (with my notebook), meaning I won't be able to work on some of my emulation projects for a while :( In the mean time, I think I'm going to take Shizzy's advice, try emulating an old x86 pc architecture (i.e. i8088...

Hey. It's been quite a while since the last time I posted here. I'm still around for those who wonder where I went. Now, for quite some time I've been having some trouble writing this binary translator (it's a new x86 -> x86 core for my emulator... the interpreter is too slow and a pain to...

Hey, does anyone have a good understanding of how Irql works on x86? I understand the general idea of Irql, but how does the system keep track of what the current Irql is? Is it normally kept inside of one of the registers (i.e. control register)? I tried searching google for this, but didn't...

Hey all. Any x86 experts out there? I was wondering where is the stack usually located on the x86 memory map (4GB, 32-bit, Protected Mode)? I know that SS normally points to that, but is it commonly located right after the data segment (DS)? I might have missed this in the Intel...

Haven't been here in months, so I guess it's time to post again :) Anyway, I was hoping to have a little disscussion on debugging your emulator. I noticed that many emu authors write disassemblers with a Win32 GUI for it too along side of using log files. I've been trying to do the same for...

It's been a while since I've posted, great to be back :) Anyway, I'm just wondering if anyone familiar with LDT might know an alternative to using LDT (for 64-bit windows)? For those who don't know what LDT is/does here's a wiki on it: Local Descriptor Table - Wikipedia, the free encyclopedia...

A few days ago, I posted some code on my new blog (http://blueshogun96.wordpress.com) about writing some 2D sprite code in OpenGL with texture rectangle extensions. I got this guy constantly making a big deal about all kinds of bullcrap that doesn't even make a lick of sense to be arguing...

Hey guys. Alot of people have been bugging and nagging me about how my Xbox emulator is doing lately, so I thought I'd post some progress. Well, it's been over a year since I've started this project (May 27, 2006 exactly) and I haven't had alot of time to work on this either, but I've managed...

It looks like someone hate's our JKKDARK :( Sorry if this is too old, but it was a total suprize to me. I like JKKDARK, but there it is...

Ok guys, I was wondering what do you think would be the most efficient way to emulate a 128-bit register? This is the best I could come up with, just wondering if there are any better solutions just in case. For those who don't know, I'm trying to emulate SSE registers. Thanks. typedef union...

Hey guys, I was wondering if some of you knew stuff about using threads. I've been trying to use threads in my emulator to simulate the emulation loop. Every time I use threads, they slow my emulator's performance to a crawl and kill my CPU usage. To be honest, I'm rather new at using...

Ok guys, I've been having alot of trouble finding docs on this DSP made by motorola. Its called the M56300. I've been searching google, but it wasn't my friend. I searched the motorola website and found no docs either. I was wondering where I could find docs on it or any similar M56k dsp...

Hey guys, it's been a while, and it's great to be back. Been dealing with alot of real-life crap lately (i.e. car accident, moving into new home, getting new job, etc.), so you guys can relate :P Anyway, I've been searching google all over for documentation on the OHCI registers and...

This is something i've been trying to figure out for weeks, almost a month. How do you decode x86 (IA-32) instructions in C? I've been searching google for ages and haven't been able to make sense of the Intel docs. Anyone have any links or ideas? Thanks. http://www.intel.com