9 Nov
2014
9 Nov
'14
10:49 a.m.
On 11/09/2014 12:28 PM, drlegendre . wrote:
That's nuts.. so not only is the monitor relying
on the computer to feed it
a sane horizontal pulse, but that pulse rate isn't fixed or
even securely delimited in hardware? Just POKEing the wrong memory location
or writing bad data to some software register can set a catastrophically
destructive video mode?
IBM mentality at work, possibly - they figured nobody would be running
non-IBM software on it, and of course their own software would be tested to
ensure that it didn't happen :-)
(Weren't certain Commodore PETs susceptible to a similar scenario?)
cheers
Jules