Re[2]: [cc65] ca65 syntax problems

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From: groepaz (groepaz_at_gmx.net)
Date: 2001-11-05 20:51:09


Hello Ullrich,

UvB> Using "-t none" for the linker, one may specify the start address by using "-S
UvB> addr" which means that no linker config is needed.

oh didnt know that...but...no....i am just slowly adapting my
code-libs to 'real' libraries so i better forget this again ASAP ;=P

UvB> You are right in some way. I've had to learn that many Commodore people seem
UvB> to be rather old fashioned, maybe this is why they are still using the old
UvB> machines.

YES! ;=P (atleast i am not useing edit.com at work hehehehe ,=))

>> 115200bps actually work pretty fine even using polling operation only
>> (didnt bother writing an irq-based driver yet)

UvB> Polling is not a good idea because you may loose characters when doing things
UvB> like outputing a "\n" which makes the screen scroll. The current driver (which
UvB> is based on sources written by Craig Bruce) uses interrupts for receiving and
UvB> polls for sending. And even this means that when sending, the driver may not
UvB> reach the full baud rate, so it's one of the "change as soon as possible"
UvB> things.

err?! why does polling incorporate bad handshake? ;=) 16bytes FIFO
should give more than enough time to raise RTS in time (maybe its a
problem with the AICA having no fifo, but its definetly not with the 16c550)

not achiving the max. possible baudrate is another issue though... its
just that my implmentation,beeing a debug-stub, shouldnt use more
memory than necessary so disallowing a recieve-buffer... also it can
work without irq or nmi which is definetly a nice thing in this
situation ,=) i get about 8k/sec though, which i think aint that bad
anyway.


-- 
Best regards,
 groepaz                            mailto:groepaz_at_gmx.net


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