oompa loompa
I AM THE GOVERNATOR
"Git 'Er Dun!"
Posts: 1,301
|
Post by oompa loompa on Nov 3, 2005 17:09:55 GMT -5
you can use the 8042 as a microprocessor, and then build up from there =P. you can get some ttl logic parts, cache memory from a 486 (to be used as sram), eproms for program memory, even a real time clock =D. video could be a problem XD, but if you can steel a 6845 from an old old video board, then you're set
|
|
|
Post by GiGaBiTe on Nov 8, 2005 23:39:00 GMT -5
could try using a YGV629-VZ, but good luck getting it working. its a 144 pin surface mount chip.
640x480@16 bit ftw
|
|
|
Post by paulpsomiadis on Nov 18, 2005 18:29:37 GMT -5
|
|
|
Post by Tom Maneiro on Nov 19, 2005 12:48:25 GMT -5
Mission: IMPOSSIBLE (or at least, if you are in USA, it will cost you at least 30 bucks on eBay)
|
|
|
Post by Tom Maneiro on Nov 20, 2005 9:50:02 GMT -5
wtf? how the hell do you build a cpu out of miscelanious IC chips? to make a simple cpu, you would need the following: ALU -> FPU (optional) -> MMU -> (this one i forget) The correct diagram is (from my Computer Organization classes): ALU<->CPU<->MMU Very simple, you only need 2 or 3 chips for the basic CPU and some stuff for the interface (video, input, blah, all connected to the CPU)
|
|
|
Post by GiGaBiTe on Nov 22, 2005 16:50:33 GMT -5
a cpu with a cpu inside it? that dont make much sense..
|
|
|
Post by Tom Maneiro on Nov 23, 2005 19:26:48 GMT -5
Oh, it was Control Unit! (i already had a exam about that crap): ALU<->CU<->MU where ALU=Arythmetic/Logic Unit CU=Control Unit MU=Memory Unit. All sharing the same data and address bus using some basic registers i'm now starting to understand assembler too, these university classes are good sometimes
|
|
oompa loompa
I AM THE GOVERNATOR
"Git 'Er Dun!"
Posts: 1,301
|
Post by oompa loompa on Nov 24, 2005 12:34:59 GMT -5
there's also an instruction decoding unit, unless you think it's inside the control unit =P (control unit = instruction unit + state cycle unit ?). the instruction decoding unit is the most critical part of the cpu
|
|
|
Post by Tom Maneiro on Nov 24, 2005 18:14:04 GMT -5
that schematic is very cute... instruction decoder, data registy, address registy, instruction registry, and a lot of control signals that you must find the way to trigger these on the lowest cycles number.
Booooring...
|
|