I've been working on RAM100.CO to make usable assembly source from a
disassembly so I can add support for more than 2 banks and maybe port to
kc85, EU, make a common 100/200 source, etc.
I've gotten the 100 version working and added the support for 4 banks.
So now for 100 & 102, all 1M of MiniNDP is usable for files.
(not just 102 because I have an untested dip-40 pcb for 100 & kc85)
I haven't started on 200 yet.
2 questions:
Is there a less convoluted way to do the ALT version of this chunk of
code highlighted below? I feel like there must be a more direct way to
arrange that loop without a jump at both the beginning and end.
Am I being silly even caring about it?
Both versions work fine and there's no speed or size problem.
I've scavenged enough bytes elsewhere that even the larger version
still comes out actually one byte shorter than the original binary
before padding just to make the bootstrap basic code with hard-coded top
& end values for the old binary also work on the new binary.
https://github.com/bkw777/NODE_DATAPAC/blob/main/software/RAMDSK/RAM100/4-bank/RAM100.S85#L929-L993
What the chunk does is increment or roll-over 2 values.
display bank number ascii '0' to '3'
control port number 129 to 141 step 4
One defensible functional difference I just realized is with the alt
version I could have a hot key or call target for basic to jump directly
to any arbitrary bank rather than stepping through a loop.
--
bkw
