ORCAD background color change
in [Design]
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From: Jim Thompson on 13 Feb 2010 18:52 On Sat, 13 Feb 2010 15:41:45 -0800, Joerg <invalid(a)invalid.invalid> wrote: >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 just knew I had done it, because I absolutely despise black backgrounds... almost as much as I hate white text on a blue background ;-) >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 ... I never attempted to tweak anything other than the color palette. ...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 19:03 Jim Thompson wrote: > On Sat, 13 Feb 2010 15:41:45 -0800, Joerg <invalid(a)invalid.invalid> > wrote: > >> 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 just knew I had done it, because I absolutely despise black > backgrounds... almost as much as I hate white text on a blue > background ;-) > I actually liked the black background. >> 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 ... > > I never attempted to tweak anything other than the color palette. > As Spehro mentioned, the real danger was tweaking the frame rate and number of lines. Losing a $200 graphics card is one thing but having the flyback xfmr of a $2k monitor go phseeeeoooouuu ... phsssst ... *PHOOF* was quite another. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Jim Thompson on 13 Feb 2010 19:17 On Sat, 13 Feb 2010 16:03:19 -0800, Joerg <invalid(a)invalid.invalid> wrote: >Jim Thompson wrote: >> On Sat, 13 Feb 2010 15:41:45 -0800, Joerg <invalid(a)invalid.invalid> >> wrote: >> >>> 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 just knew I had done it, because I absolutely despise black >> backgrounds... almost as much as I hate white text on a blue >> background ;-) >> > >I actually liked the black background. > > >>> 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 ... >> >> I never attempted to tweak anything other than the color palette. >> > >As Spehro mentioned, the real danger was tweaking the frame rate and >number of lines. Losing a $200 graphics card is one thing but having the >flyback xfmr of a $2k monitor go phseeeeoooouuu ... phsssst ... *PHOOF* >was quite another. My last few CRT monitors were multi-sync... unfortunately so heavy it took two people to move them ;-) ...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: Joel Koltner on 13 Feb 2010 22:14 "Joerg" <invalid(a)invalid.invalid> wrote in message news:7tosu8FiqlU1(a)mid.individual.net... > As Spehro mentioned, the real danger was tweaking the frame rate and number > of lines. Losing a $200 graphics card is one thing but having the flyback > xfmr of a $2k monitor go phseeeeoooouuu ... phsssst ... *PHOOF* was quite > another. Possibly silly question: In a $2k monitor, would it have really cost very much (relatively speaking) to prevent the flyback transformer from frying? Is it the core going into saturation that kills them (overheating leading to insulation being lost and eventually shorting) or too high output voltage (leading directly to shorting)?
From: Peter McMullin on 14 Feb 2010 00:25
On Sat, 13 Feb 2010 06:32:08 -0800, Pieyed Piper wrote: > On Sat, 13 Feb 2010 08:41:20 -0500, Boris Mohar > <borism_void_(a)sympatico.ca> wrote: > >>On Fri, 12 Feb 2010 13:46:20 -0800, Joerg <invalid(a)invalid.invalid> >>wrote: >> >>>John Fields wrote: >>>> OK, dammit, I'm stuck... >>>> >>>> I'm using, and dearly love, old ORCAD SDT in an XP DOS window, and it >>>> works great. >>>> >>>> But... >>>> >>>> While ORCAD allows almost all of SDT's features' colors to be >>>> changed, the black background cannot, as far as I can tell. >>>> >>>> I'd like to change it to white. >>>> >>>> Clue, please? >>>> >>>> >>>Strictly from memory, way back: IIRC the only way one could change the >>>background color on SDT was to muck with the table stored in the >>>graphics card. But having anything other than black was frowned upon by >>>Orcadians back then, right up there with parking a Harley next to a >>>Goldwing ;-) >>> >>>I don't know if this is still possible in a DOS window. >> >> Ask in http://groups.yahoo.com/group/OldDosOrcad/ They did a lot of >> work >>on new drivers. > > Hell, all we need is a decent set of VESA drivers. I have trouble even > getting any of my 800x600 drivers working on any of these newer cards, > so even VGA must be "in a different place" in the card's set-up. VESA > modes always seem to work these days. So they need a vesa driver set. > > Tango PCB has one. Pretty nice too. I run both that and Orcad from > within DOSBox, which does allow full screen sessions, even in Windows 7. > Any hardware hooks that are needed (even local machine stuff) can be > attached to via NET USE type commands if direct methods pose problems. WHAT BORIS SAID. You're not paying attention. What driver would you like? >> Ask in http://groups.yahoo.com/group/OldDosOrcad/ They did a lot of >> work >>on new drivers. And, they're all available in the files area. Life is good. OrCad lives on, and produces.You don't need dosbox under XP. Don't know about W7. Sorry if this does not address the OP's question directly, but actually it does. -Peter |