Discussion of development and patch submission.
5 posts • Page 1 of 1
Hello, I've been using PCem for some time now, primarily for development of BIOS patches for vintage machines. It's a great product, thank you. I've made a few attempts in the last year or so to get setup for compiling it myself but have always tripped up on one thing or another. The write-up I found were a bit aged so the result wasn't unreasonable. Long story short I need to be able to speed up the IDE drive access a little bit in order to reproduce some issues that occur on real hardware when a faster drive is attached. I was wondering if there is a setting that can be tweaked to affect IDE speed, or if there is a write up that might help me setup a functional build environment because it would be great if I could add some debugging features too.
Thank you kindly.
Thank you kindly.
maybe emulate an SCSI card
It's got to be IDE. It looks like I'm having some better success setting up the environment at the moment so I might just be all set. Thank you.
Out of curiosity, why is GOT to be IDE?
Because I'm trying to patch issue related to Int 13h and IDE devices, they don't occur with SCSI. I was able to get things squared away and have now successfully compiled PCem with only a few deviations from the writeup. I haven't looked at the code yet but I recall reading a long time ago that speed (I think it was referencing floppy) is intentionally slow to give a more representative emulation of the original computer. I guess I've presumed that it's a similar situation with IDE, but of course assumptions don't always get you too far. So, before I dig in too far perhaps someone might chime in on what I'm trying to do, which is play with the timing (performance) of IDE read speeds. Thanks!