[Coco] So does your coco3 do 256 color mode ? Mine does...

[L. Curtis Boyle]

L2 fonts are basically just 8x8 bitmap characters, 2 color (background/foreground).

L. Curtis Boyle
curtisboyle at sasktel.net



On Feb 15, 2014, at 9:38 AM, Luis Antoniosi (CoCoDemus) <retrocanada76 at gmail.com> wrote:

> I could do it in startup but seems kinda a kludge for me and error prone.
> But a command line tool to replace or refresh the font seems interesting as
> one could erase all the characters when setting another video mode.
> 
> I dont know anything about L2 fonts but this must be compatible with coco1.
> 
> The v9958 had support for extra 64k that could be used for any purpose like
> ramdisk, etc the problem is the espace to accomodate 2 more chips
> On 2014-02-15 10:18 AM, "Bill Pierce" <ooogalapasooo at aol.com> wrote:
> 
>> 
>> Luis,
>> Why not do it in the "startup" file?
>> You will no have no display during the boot, but the startup is run before
>> the os9 prompt is reached, so you will get a display then. Be aware that
>> the OS9 font/pointer/pattern files have a "load" header. I'm not sure of
>> the format, but I know it's documented somewhere.
>> I'm not sure how much functionality exists in intit, others can answer
>> that better. It seems to me that what you're trying to do, should be done
>> in the driver init as you suggested. It should be doable.
>> 
>> 
>> Bill Pierce
>> "Today is a good day... I woke up" - Ritchie Havens
>> 
>> 
>> My Music from the Tandy/Radio Shack Color Computer 2 & 3
>> https://sites.google.com/site/dabarnstudio/
>> Co-Webmaster of The TRS-80 Color Computer Archive
>> http://www.colorcomputerarchive.com/
>> Co-Contributor, Co-Editor for CocoPedia
>> http://www.cocopedia.com/wiki/index.php/Main_Page
>> E-Mail: ooogalapasooo at aol.com
>> 
>> 
>> 
>> 
>> -----Original Message-----
>> From: Luis Antoniosi (CoCoDemus) <retrocanada76 at gmail.com>
>> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
>> Sent: Sat, Feb 15, 2014 9:54 am
>> Subject: Re: [Coco] So does your coco3 do 256 color mode ? Mine does...
>> 
>> 
>> But I will have to make a L1 driver and I need to send 2K of patterns
>> to the VDP prior the booting.
>> 
>> In the init of the covdg.io for example is the files system already up
>> and can I open and load  a file inside the os9 file system ?
>> 
>> 
>> On Sat, Feb 15, 2014 at 9:35 AM, Bill Pierce <ooogalapasooo at aol.com>
>> wrote:
>>> 
>>> Luis,
>>> If you're talking to the OS9 L2 HiRes char set, you just "merge" them
>> wuth the
>> system ie.
>>> merge /dd/sys/stdfonts
>>> This is done externally from the drivers.
>>> All hires fonts are stored in get/put buffers with "special" group and
>> buffer
>> names. The same goes for pointers and patterns.
>>> 
>>> All the buffers are explained in:
>>> "The OS-9 Level 2 Windowing System" manual
>>> The buffer tables are in chap 3 page 8 (3-8)
>>> 
>>> You can actually load several fonts and switch between them if you want,
>> but
>> it's tricky programming and playing around with the groups and buffers.
>>> Also, all fonts, patterns and pointers reside "outside" of system and
>> program
>> memory as do almost all graphics oriented buffers. They do not use up
>> program
>> memory but are a major PITA to manipulate if you're not familiar with
>> working
>> with the get/put buffers.
>>> 
>>> Hope this helps
>>> 
>>> 
>>> Bill Pierce
>>> "Today is a good day... I woke up" - Ritchie Havens
>>> 
>>> 
>>> My Music from the Tandy/Radio Shack Color Computer 2 & 3
>>> https://sites.google.com/site/dabarnstudio/
>>> Co-Webmaster of The TRS-80 Color Computer Archive
>>> http://www.colorcomputerarchive.com/
>>> Co-Contributor, Co-Editor for CocoPedia
>>> http://www.cocopedia.com/wiki/index.php/Main_Page
>>> E-Mail: ooogalapasooo at aol.com
>>> 
>>> 
>>> 
>>> 
>>> -----Original Message-----
>>> From: Luis Antoniosi (CoCoDemus) <retrocanada76 at gmail.com>
>>> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
>>> Sent: Sat, Feb 15, 2014 9:04 am
>>> Subject: [Coco] So does your coco3 do 256 color mode ? Mine does...
>>> 
>>> 
>>> also my coco1, coco2, coco2b, etc.
>>> 
>>> Meet the WordPak 2+ fully operational:
>>> 
>>> http://www.youtube.com/watch?v=GdAwJJsXbtA
>>> 
>>> Still need to make all the drivers, one problem is the charset that
>>> must be loaded from disk. How do I do it in os9 ? Just open a file
>>> into the video driver init ?
>>> 
>>> --
>>> Long live the CoCo
>>> 
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>> 
>> 
>> 
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