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SubjectRe: Alright I gotta have you be a little more descriptive here Reply to this message
Posted byfinaldave
Posted on12/03/03 08:04 AM



>
> > Did DOS really never have any kind of out of the box pollable timer which did
> > 1/70 second accuracy?
>
> The VGA VSync occured at 70Hz for 320x200. For 320x240 Mode X, it was 60Hz.

Can you poll for a vblank flag or a scanline or something then?

>
> The PIT can be programmed and it certainly can handle these sorts of
> resolutions.
>
>
> ----
> Bart
>


You learn something old everyday...


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Entire Thread
Subject  Posted byPosted On
*Just a matter of time...Assembly fun cont'd  Snowball 211/29/03 02:46 AM
.*Re: Just a matter of time...Assembly fun cont'd  Riff11/29/03 03:15 AM
..*Some background  Snowball 211/29/03 03:40 AM
...*Re: Some background  Riff11/29/03 04:01 AM
....*Alright I gotta have you be a little more descriptive here  Snowball 211/29/03 01:39 PM
.....*Re: Alright I gotta have you be a little more descriptive here  Bart T.11/29/03 03:05 PM
......*Re: Alright I gotta have you be a little more descriptive here  finaldave12/02/03 06:36 AM
.......*Re: Alright I gotta have you be a little more descriptive here  Bart T.12/02/03 11:34 AM
.........Re: Alright I gotta have you be a little more descriptive here  finaldave12/03/03 08:04 AM
.........*Re: Alright I gotta have you be a little more descriptive here  Bart T.12/03/03 11:14 AM
..........*Re: Alright I gotta have you be a little more descriptive here  smf12/04/03 06:02 AM
....*Re: Some background  abcdef11/29/03 07:27 AM