Looking for CD32 beta tester(s) for a new cd.device

[Cosmos Amiga]

Hi all !

I'm looking a for CD32 owner(s) for checking my new cd.device :

==> https://leblogdecosmos.blogspot.com/2025/12/cddevice-4030.html

You need to have a real CD32 (no emulation) for checking CDs, doing benchmarks, verify files integrity...

You can use of course LoadModule for loading my new versions, or burning in eproms, as you want...

I already have many new versions, need deep checking now !

[Cosmos Amiga]

So your just after some one to test it, to see thats its still all working ok?
There is no changes etc etc, just code optimisation to reduce size?

Yes, and only this is already a big work...


One quick example with the original (20 bytes) :

_BCDtoBIN
move.w d0,d1 ; isolate one's digit
andi.w #$000F,d1
lsr.w #4,d0 ; isolate ten's digit
andi.w #$000F,d0
mulu.w #10,d0 ; multiply ten's digit
add.w d1,d0 ; add one's digit
rts

This one is faster or not (14 bytes) on a 020 ?

_BCDtoBIN
moveq #16,d1
divul.l d1,d1:d0
mulu.w #10,d0 ; multiply ten's digit
add.w d1,d0 ; add one's digit
rts

Or maybe this one (18 bytes) :

_BCDtoBIN
unpk d0,d1,#0
lsr.w #8,d1
mulu.w #10,d1
andi.w #$000F,d0
add.w d1,d0
rts

Good question, isn't it ?!
   

[Cosmos Amiga]

I wouldn't expect much speedup, the best it can do is ~300kB/sec anyhow, regardless of driver.

There is a lot to do in removing useless code and reduce this .device in size...

After that, the slow hardware access and/or the slow CPU 020 may kill all the work...

I saw that with the scsi.device on the A1200 with Gayle PIO0...

That's why I need some checkers on the real hardware, to see if a real improvement is possible or not !