Manuel Bilderbeek schreef:
> Hi there folks!
>
> I recently bought 2 Sony HB-F700D MSX2 machines. They seemed to be
> totally the same, but after trying them, one of the machines seems to
> have a diskdrive which is really very much slower than the drive in the
> other machine. After a while I found out that the fast drive-machine has
> Disk Basic version 1.2 and the slow one 1.0. But I think there's been no
> 'surgery' on these machines to replace the diskROM, and the machine with
> 1.2 has a lower serial-number than the 1.0-one! Isn't that strange? By
> the way, the fast one is almost 10 times faster than the slow one! I
> checked out this:
>
> 10 TIME=0
> 20 BLOAD"FILE.BIN": REM 16K of binary
> 30 PRINT TIME/50 : REM 60 for NTSC mode
>
> Can other people please check this on their MSX too? I'm wondering...
> (IF this is a valid way to measure the disk-speed ofcourse!)
>
> The fast SOny-drive gave: 0.24
> The slow one gave: 2.3!
>
> --
> Grtjs, Manuel
>
I know there are fast and slow disk rom's. the first sony's are very slow.
but the disk basic version still remains ver 1.0. the difference is inside the
kernel.
maybe somone has messed with the text in the diskrom when he replaced the diskrom.
also philips msx have fast and slow diskroms. and the are a lot faster then the
sony fast diskrom.
but the basic version still remains 1.0.
erik de boer
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