Sp, July 2nd 2000
Hello to everybody.
Say that Konamiman finished the version 3 for the Z380 BIOS (Eprom).
I just recorded the Eprom and tested it successfully.
Most importan things of this version:
a) The Basic CALL commands for accessing Z380 have been moved to the Z380
itself. So, the 1KB common Ram memory is now nearly empty, free for the
user.
b) Users can add their own Basic CALL commands, from disk. You can load
hundreds of new commands, and the best thing is that they don't spend any
MSX memory, because they are stored into the Z380 memory. And is the Z380
who executes this commands !!! So, they can be a lot of fast !!
And you can use the whole linear Z380 memory for more powerfull commands.
You can go to MSX DOS, coming back to Basic, a lot of times, and the
new commands added, remains OK !!
For example, Konamiman did this new PCM commands
CALL ZPCMREC (d31..16,d15..0,L31..16,L15..0,Frec)
CALL ZPCMPLAY(d31..16,d15..0,L31..16,L15..0,Frec)
So, you can record and play several Megabytes of PCM sound, without
changing blocks, mapping memory or nothing.
(The start address, and the length, are 32bit- values !!)
The maximum frecuency is about 25 KHz !!
They run OK (Of course, only at a Turbo R)
That's all. Hope to release more Z380 stuff soon.
Daniel Zorita.
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