Information on floating point ALU architectures

[elecs_gene]

hi guys
can u give some information on floating point ALU architectures??anything in relevance to floating point ALU would help..

with regards

 

[eda_wiz]

FLOATING POINT ALU

Before starting with architecture, you should checkout IEEE 754 spec on floating point computation. **broken link removed**

I guess a freecode is available on opencores

 

[linuxluo]

Re: FLOATING POINT ALU

hi,
if you want to do fpu, decide which type you want, risc/cisc. if you want to risc, then you just focus on floating point add/sub/mul/divide, or maybe reciporcal or squar root.
but if you want cisc just like 80387, you have to learn more , for example , sin, cos, tan, arc tan, etc.
I think floating point arithmetic is not easy , you can check IEEE paper , there are hundreds on it.
best regards

 

[elecs_gene]

Re: FLOATING POINT ALU

hi linuxluo,
i think i want to design a risc floating point architecture..now my question is how to go about framing the architecture??now that addition , subtraction , multiplication , division , square root are the operations that i want to perform..should my next type be choosing the type of adder & multiplier??

with regards