From: Ullrich von Bassewitz (uz_at_musoftware.de)
Date: 2005-11-25 16:18:26
I've got my box with PAL DTVs yesterday. First step was of course to open the
case and have a look at the interior:-) After a few hours of playing and
checking the easter eggs, I downloaded the programming info. I will have a
second look at it today, but for now, I have a few questions:
* Are there official or semi-official names for the new opcodes $32 and $42?
* Is there any way to read the current register file assignment? The problem
I see is with libraries, interrupt handlers and such. If any subroutine
changes the register file assignments, it cannot restore the old contents.
* There is no description for the register bank entries $10 and $11. Is it
correct that they are just the high bytes of the ZP and stack pages,
meaning that I can moves these two pages aroung in memory in 256 byte
steps?
* This one is more a hardware question: How good is buffering on the
in-/outputs used for the serial IEEE port, the PC keyboard and so on?
Is it safe to just connect these to standard sockets/cables?
Regards
Uz
--
Ullrich von Bassewitz uz@musoftware.de
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