19 Oct
2015
19 Oct
'15
4:03 a.m.
On 2015-10-19 12:40, Rick Murphy wrote:
At 11:08 PM 10/18/2015, Johnny Billquist wrote:
Unless I remember wrong, the space for device drivers is already
reserved in FRTS...?
Device handlers always sits in field 0. Thus, they cannot really be
loaded dynamically, and certainly not beyond the top of the program.
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
On 2015-10-19 04:58, ben wrote:
> On 10/18/2015 8:43 PM, Johnny Billquist wrote:
>> thus making it also able to run under MULTOS-8.
>>
>> Memory requirements and availability is a different story, but yes,
>> ADVENT will require the full 32K, as far as I remember.
>
> I think a few changes where made a few years back, It could be a bit
> smaller now with the latest code.
Not significantly. Small enough to be much less likely to run out of
memory even with multiple 2-page handlers installed, but certainly not
small enough to allow it to run in 16K, for example.
The loader map says:
70000 = 1ST FREE LOCATION
That means that it uses up all of 28K (with FRTS) without any device
drivers installed. If it was possible to bum another couple of pages it
might be possible to get it to work with 28K, but currently it won't.
32K is required for it to work. As always with trying to make code more
compact, the more times you go back to try to shrink things the harder
it gets. I haven't tried for several years, however.