gnupic: PICs on Linux
Subject:
Re: PICs on Linux
From:
Bill Couture ####@####.####
Date:
12 Nov 2004 03:09:03 +0000
Message-Id: <Pine.WNT.4.10.10411112206210.-331373@junkvalue.speakeasy.net>
On Thu, 11 Nov 2004, Ryan Underwood wrote:
> Check ####@####.#### That is where the development
> related traffic happens. ####@####.#### is still alive but
> most user questions are handled through the sourceforge tracker in these
> days.
OK, I'll take a look.
> > When I looked at DOSEMU, I quickly noticed that the CPU flags were being
> > done wrong. I should look at it again and see if they have been fixed.
>
> Can you be more specific please, and/or file and issue in the bug
> tracker? This sounds like something that would be a good idea to fix.
I'll have to look at my archives, but as I remember when I saw that he
was computing flags by some logical method rather than doing the actual
operation and looking at the results, it didn't seem right to me (i've
done a 80x86 emulator before, in the mid-80's -- very useful as a
debugger).
The problem showed up with instructions like ADC and SBB, where CY was
not 0. Thus, you had 3 values going into the computation and affecting
the flags, in which case the flags were wrong in some cases.
As I said, I'll have to go into my archives and try to find it.
Bill
