Philips made MSX1 computers with memory in an expanded slot. These were the
second series of the VG 8020. They can be recognized at the bottom, where it
says VG8020/20. This caused a lot of trouble back then.
Philip van der Hoeven
>
> People,
>
>> > :MSX1 and slotexpander... Some how I don't think so...
>> > No??? Then MSX2 is not fully MSX1-compatible, for if you write data in
page
>> > 3 at adress #FFFF, strange things can happen on a MSX2...
>
> Come on!
> If you write data em #FFFF strange things can also happen on MSX1!
> #FFFF is secondary slot register. If the MSX RAM is located in a
>subslot and you put values in #FFFF, you'll probably change the pages to
>an empty slot, get trash at PC and CRASH. If the MSX RAM is located in a
>primary slot and your MSX doesn't have any subslot, so write anything at
>#FFFF and nothing happens.
> Here in Brazil, the Expert and HotBit, two MSX1 models, have RAM
>in a primary slot. With Expert Plus, DD Plus and 2/2+ Upgrade Kits, tha
>RAM is changed to a subslot. Well, programs that put value at #FFFF (and
>run fine on Expert/HotBit) crashes in the others. The fault? Of the
>programmers, too. But here, good (and right) information about MSX was
>difficult...
>
>> I know, that it is possibble to connect slotexpander to MSX1, but I
think,
>> that it is VERY unlikely, that this guy has one.
>
> Slotexpanders work fine with MSX1. Tested by many MSX users in
>Brazil since it appeared here. :)
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