FPGA VAX update, now DIY TTL computers
Gordon JC Pearce
gordonjcp at gjcp.net
Wed Nov 9 02:19:46 CST 2005
> Stegeman, Henk HJ SITI-ITIBHW5 wrote:
>> The reason is the effort it takes......
>> Ask anybody who actually made a CPU ( I myself did a 12 bit
>> TTL based, single address single accumulator machine).
>> The real effort is actually building and debugging the unit.
>> There is only so much time you have....
>>> I've always thought that 24 bits is a nice word size for a small
>> Much too big to actually build in TTL.
> Well everybody likes 12 bits...
> http://www.cray-cyber.org/hardware/Hardware.php Forget TTL, go tubes!
They can't calculate the difference between 926kB and 926MB though -
look at those filesizes! Either they've got that wrong or NTL have
given me one hell of an upgrade overnight.
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