[Coco] Small OS-9 drivers taking up 16K after loaded

[Bob Devries]

Roger,
you really need to use OS9Gen to put a bootfile on a disk.

At a guess, what's happened is that the pointer in LSN0 is still pointing to 
the old bootfile, not the new one.

Regards, Bob Devries

--
Besides a mathematical inclination, an exceptionally good mastery of one's 
native tongue is the most vital asset of a competent programmer.

Edsger W.Dijkstra, 18 June 1975

----- Original Message ----- 
From: "Roger Taylor" <operator at coco3.com>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Monday, March 29, 2010 2:45 PM
Subject: Re: [Coco] Small OS-9 drivers taking up 16K after loaded


> At 10:43 PM 3/28/2010, you wrote:
>
>>I have a question concerning drivers that use the RBF system.  If the 
>>modules are loaded from the prompt, even if merged into one module and 
>>occupying only $2AA bytes of code, why would there be a drop from 24k free 
>>memory to 8k?  16k has been eaten instead of 8k.  The driver doesn't use 
>>anywhere near enough memory to exceed 1K, let alone 8K.  Does any code or 
>>memory from RBF also get allocated?
>>
>>24k free
>>
>>merge drivepak.dr drivepak_h0.dd drivepak_h1.dd >dp
>>(dp is $2AA bytes)
>>attr dp e pe
>>load dp
>>
>>now 8k free
>>attempting to even use "dir" now produces the error #207 memory error
>>
>>as expected, unlinking dp gives me my memory back
>>
>>I'm going to try using ded to merge these into os9boot and test them that 
>>way.
>
> Well, I thought "ded" was an os9boot file editor.  Never mind.
>
> So, I merged os9boot and my drivers onto another disk, deleted 
> /dd/os9boot, then copied the new os9boot file over to /dd, ident os9boot 
> shows my drivers, but after booting up, the 3 drivers are not in RAM. 
> This leads me to believe that fragmented os9boot files are not supported, 
> and the load process breaks.  I thought NitrOS-9 handled this.  The file 
> is still at sector $0B.
>
>
>
> -- 
> ~ Roger Taylor
>
>
>
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