Here's a quick question:
I have used software interrupts, mostly with int86/union regs; say int 34
for the mouse, with another integer loaded into a register to select within
that int. Recently I have seen ints such as:
intxx.yy; is this something new, or I just don't get out much? Is the 'yy'
INTxx.yy is a shorthand notation people use to indicate an INT xx with
subfunction yy. The yy is usually put into one of the CPU registers before the
call (AH in many cases). In addition, the xx and yy are assumed to be hex.
Example:
INT 21.4C would be coded as:
MOV AH,4Ch
INT 21h
Recently I have seen ints such as: intxx.yy; is this something new, or I
just don't get out much? Is the 'yy' just the selection within the int
function or what?
Yes, some use this still rather unusual/new notation to concisely refer to
interrupt calls. I am among those; you might have
Somewhat amusing that Bret would describe this shorthand in a
much shorter way than I did.
There is no formal definition of this, at least that I've ever seen. It's just
a convenient way of talking about code at a high/conceptual level in forums and
e-mails, without actually needing to
Beautiful; thanks guys, and by the way Bret I tried unsucessfuly to use
your usbdos on an msi mobo with only uusb(no ps2 holes); any which way,
it's impossible!!.Richardwb2...@gmail.com.
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At 03:13 PM 1/24/2012, C. Masloch wrote:
I've been out of the loop on development for a while. Bret, do you,
incidentally, remember whether we came up with this one independently, or
how did it develop? I honestly would have to search through old mail again
to answer that myself.
The INT xx.yy
http://prolumia.eu/mor/184042.html
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