[Coco] coco I 4K contest

[Arthur Flexser]

Without disk or Extended Basic, a Basic program would start at $600.  So,
you have from there to $FFF for program and variables, less 200 bytes
reserved for string space (reduceable by using a smaller value in a CLEAR
statement), less maybe 20 bytes for stack space.  That works out to 2339
bytes, which should be pretty close to what PRINT MEM gives on a 4K Color
Basic machine.  (Assuming that the MEM function exists in Color Basic.)

Art

On Thu, Jan 1, 2015 at 2:05 AM, Camillus Blockx <camillus.b.58 at gmail.com>
wrote:

> Hi, Allen
>
> It was just brought to my attention that A coco I 4k not necessary means
> that we can use 4096 Bytes for the basic/assembler - code. That being said,
> what is then the limit a Basic program has is a coco I. Is the total 4K
> inclusive the ROM and I/O address space, so 4096 - 1024(ROM) = 3072 - stack
> - BASIC scratchpad - variable storage = probably another 1024 Byte so 2048
> Bytes would be over.  This is all just what comes into my mind on the spot.
> So maybe it would be good to put some figures out there like the max Basic
> Address or Max Lines, so that we have something to check to stay in the
> limits.
>
> cb
> On 12/31/2014 10:55:58 PM, Allen Huffman <alsplace at pobox.com> wrote:
> > On Dec 31, 2014, at 10:11 PM, Camillus Blockx wrote:
> >
> > Hi all,
> >
> > A lot of guessing and talking about the coco I 4k, and what not more.
> >
> > Can we just bring in BASIC or ML ( 68E09B ) programs that :
> >
> > 1 - NOT contain any non basic 1.0 - 1.1 command or function.
> > 2 - is NOT bigger then 1024 x 4 = 4092 bytes.
> > 3- Upload as zip file ( program : MYPRGRM.BAS (BIN), Listing : Notepad )
>
> Yes, I will be able to run it on an emulated 4K CoCo to test it for you. I
> want to make all the entries available on a cassette file for the emulators
> (or a WAV file that could be played in to a real CoCo) so those who are
> interested can check them all out -- we'll come up with some kind of
> survey/questionnaire and rank them based on that, perhaps.
>
> -- Allen
>
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