9 Feb
2006
9 Feb
'06
4:16 p.m.
[1] What a kludge. The 150-II has an 8088 on the
mainboard, used in
'minimum mode', which means some of the coprocessor
signals are not
available. The coprocessor card contains an 8088 in
'maximum mode', the
8087 and some interface logic. It disables the 8088
on the mainboard....
what's the purpose of the coprocessor card (other
then adapting an 8087 to the system)? Is the 2nd 8088
only there so that an 8087 CAN be accomodated (a min
mode 8088 disallows any other processors on the bus)?
A kludge indeed, but an expensive one if I managed to
make any sense of the scheme.
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