Absolutely, I will do an EPROM dump and release it here on a
combination of conditions, 1 If I can get the board working, 2 Or
if
I can get the EPROM(?) out of their sockets and into something else
that will allow me to 'dump' in, 3 If I knew how to 'dump it' in
the
first place, I believe I read on here sometime ago its a matter of
saving bytes from a specific location. I will ask for assistance
when I get to that point.
Dumping a ROM from SuperQBoard:
The QL Technical manual says that an add-on ROM will have a header
flag of hex 4AFB0001, so you can search for this. (Two long words
decimal19196 and decimal1) - the memory map allows up to 512KB add-on
RAM in an original system like Medic and SuperQBoard (doesn't apply to
add-ons like Trump Card etc which use the ROM and add-on space for
extra RAM).
I don't know how many bytes of code the EPROM will hold - presumably
you can tell from the Eprom type - 27128, 27256 etc etc
Page 56 of Technical manual, memory map, may help to locate the
SuperQBoard or Medic ROM:
$C0000 (decimal 786432) upward to decimal 917503 - Add on peripherals,
8 slots up to 16KB each
$E0000 to $FFFFF (decimal 917504 to 1.048575E6) - Add-on ROM, up to
128KB
Dilwyn Jones
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