[Color Computer] Re: [Coco] DLOAD mystery

[Neil Morrison]

http://groups.yahoo.com/group/ColorComputer/files/DLOADM Bug.htm

http://www.getnet.com/~markdeb/ftp/coco/

http://redvip.homelinux.net/varios/texts/Dragon/D64DIFS.HTM

http://www.clingman.org/coco/

Neil

----- Original Message ----- 
From: "Roger Taylor" <webmaster at coco3.com>


> Can someone tell me what the deal is with the DLOAD command?  It starts 
> out trying to send a 138 out using (8-N-1, I hope), but the PC is not 
> receiving this code correctly.  I mainly keep getting a value of 10 which 
> is 138 minus the upper bit.  That makes me believe that DLOAD is somehow 
> missing on sending the first bit of the data.  Every now and then the PC 
> does receive a value of 138.
>
> However, the DLOAD SendChar routine works fine, though.  If you call it 
> from another ML routine, it will send all 8 bits over to the PC every 
> time.  This is strange, since DLOAD loads a value of 138 into the A 
> register then calls the same routine to send out the character.
>
> There's two things that might be the problem....?  First, DLOAD is using 
> 44 for the delay for 1200bps when it should be 41.  I've tried matching 
> this on the PC by setting the bps to values from 1000 to 1200, but I can't 
> seem to match it.  Also, DLOAD might not be using 8-N-1 like I think?


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