ORCAD background color change
in [Design]
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From: AwlSome Auger on 13 Feb 2010 17:41 On Sat, 13 Feb 2010 13:38:01 -0800, Joerg <invalid(a)invalid.invalid> wrote: >AwlSome Auger wrote: >> On Fri, 12 Feb 2010 14:36:28 -0700, Jim Thompson >> <To-Email-Use-The-Envelope-Icon(a)My-Web-Site.com> wrote: >> >> >>> It's coming back :-) >>> >>> Use GENDRIVE.EXE to roll your own video driver. >>> >>> ...Jim Thompson >> That has nothing to do with it. > > >In the olden days we loaded our own color tables so you could change >almost any color that a program would generate. But you had to know the >inner workings of your video card. And there were some that required >caution, if you wrote to the wrong registers you could kill the card ... >*phut* In the days of memory arrays that stored frames within 1024kB of space, sure. Nowadays, full VESA compliance might be nebulous with some of the gamer card makers. Forget TIGA compliance. Anyway, Gendrive.exe did not have any range of function to speak of, and certainly did not allow tweaking of registers, and color table translations. I will post the driver I have had the most success with in trying to get it at 800x600, which is about all we could ever hope for. It is SDT 3.21
From: AwlSome Auger on 13 Feb 2010 17:47 On Sat, 13 Feb 2010 14:49:54 -0700, Jim Thompson <To-Email-Use-The-Envelope-Icon(a)My-Web-Site.com> wrote: >As I remember Gendrive, you ran it pulling in data from the provided >driver for your card, That's going to do a lot of good for cards without "provided drivers" to "pull in from". Bwuahahahahaha. You cannot even get logic right when you are guessing at it. The applet is for generating a driver when there is NO provided driver in place. DOH!
From: Jim Thompson on 13 Feb 2010 18:10 On Sat, 13 Feb 2010 17:00:40 -0500, Spehro Pefhany <speffSNIP(a)interlogDOTyou.knowwhat> wrote: >On Sat, 13 Feb 2010 13:38:01 -0800, the renowned Joerg ><invalid(a)invalid.invalid> wrote: > >>AwlSome Auger wrote: >>> On Fri, 12 Feb 2010 14:36:28 -0700, Jim Thompson >>> <To-Email-Use-The-Envelope-Icon(a)My-Web-Site.com> wrote: >>> >>> >>>> It's coming back :-) >>>> >>>> Use GENDRIVE.EXE to roll your own video driver. >>>> >>>> ...Jim Thompson >>> That has nothing to do with it. >> >> >>In the olden days we loaded our own color tables so you could change >>almost any color that a program would generate. But you had to know the >>inner workings of your video card. And there were some that required >>caution, if you wrote to the wrong registers you could kill the card ... >>*phut* > >Don't remember that.. but do remember that some CRT monitors would die >if fed the wrong horiz/vert frequencies (which some cards were quite >capable of producing). > > > >Best regards, >Spehro Pefhany Joerg has a *phutish* ;-) Here's the skinny just as I remembered... http://analog-innovations.com/SED/OrCAD_Gendrive_Info.pdf ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.
From: Joerg on 13 Feb 2010 18:41 Jim Thompson wrote: > On Sat, 13 Feb 2010 17:00:40 -0500, Spehro Pefhany > <speffSNIP(a)interlogDOTyou.knowwhat> wrote: > >> On Sat, 13 Feb 2010 13:38:01 -0800, the renowned Joerg >> <invalid(a)invalid.invalid> wrote: >> >>> AwlSome Auger wrote: >>>> On Fri, 12 Feb 2010 14:36:28 -0700, Jim Thompson >>>> <To-Email-Use-The-Envelope-Icon(a)My-Web-Site.com> wrote: >>>> >>>> >>>>> It's coming back :-) >>>>> >>>>> Use GENDRIVE.EXE to roll your own video driver. >>>>> >>>>> ...Jim Thompson >>>> That has nothing to do with it. >>> >>> In the olden days we loaded our own color tables so you could change >>> almost any color that a program would generate. But you had to know the >>> inner workings of your video card. And there were some that required >>> caution, if you wrote to the wrong registers you could kill the card ... >>> *phut* >> Don't remember that.. but do remember that some CRT monitors would die >> if fed the wrong horiz/vert frequencies (which some cards were quite >> capable of producing). >> >> >> >> Best regards, >> Spehro Pefhany > > Joerg has a *phutish* ;-) > > Here's the skinny just as I remembered... > > http://analog-innovations.com/SED/OrCAD_Gendrive_Info.pdf > Yes, that's how it's done. I never killed a graphics card with it but in the old days it was possible with some of them to drive them into a bus contention situation. Then it would sit there and some chip would become toasty, hot, hotter, really hot ... -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Joerg on 13 Feb 2010 18:44
AwlSome Auger wrote: > On Sat, 13 Feb 2010 13:38:01 -0800, Joerg <invalid(a)invalid.invalid> > wrote: > >> AwlSome Auger wrote: >>> On Fri, 12 Feb 2010 14:36:28 -0700, Jim Thompson >>> <To-Email-Use-The-Envelope-Icon(a)My-Web-Site.com> wrote: >>> >>> >>>> It's coming back :-) >>>> >>>> Use GENDRIVE.EXE to roll your own video driver. >>>> >>>> ...Jim Thompson >>> That has nothing to do with it. >> >> In the olden days we loaded our own color tables so you could change >> almost any color that a program would generate. But you had to know the >> inner workings of your video card. And there were some that required >> caution, if you wrote to the wrong registers you could kill the card ... >> *phut* > > > In the days of memory arrays that stored frames within 1024kB of space, > sure. > > Nowadays, full VESA compliance might be nebulous with some of the gamer > card makers. Forget TIGA compliance. > > Anyway, Gendrive.exe did not have any range of function to speak of, > and certainly did not allow tweaking of registers, and color table > translations. > But the manual says so ... :-) [...] -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM. |