MOV dest = [mem] is a load. That's at least two clocks, more like 3 or 4 (assuming a hit in the TLB, and the L1 - forget it if you miss anywhere, you're talking 100's of clocks). Stores are similar (time to availability in the store queue).

It's been a while, but I seem to remember some code using CMOV (may have been Windows code generated from icc - anything targeting 686 with optimizations should be using it). It should be in any P6 derivative (that's when it first went it). It would be a lot of work just to take it out, and would break compatibility.

PAE is another matter altogether. That is seen as a server feature, so it is disabled via fuses. The hardware is still there...

I'm not sure what you are talking about... if by INC/DEC you mean every arithmetic or logical instruction (ADD,SUB,OR,AND,XOR)... they all take one clock (in execute). Shifts got hammered in P4, they should be back to 1 or 2 clocks now. Multiply, divide, floating point and SIMD instructions will take longer. I think a MUL is about 4 clocks nowadays. DIV is always longer (8-20, figure a table lookup and multiple - floating point adds time for normalize and error check). Crazy stuff like sine and cosine are, of course, longer. Simple SIMD stuff can be one clock (PADD).

And, every x86 since PPro has had CMOV.

Airplanes have a constant flow of air to dump heat into. In space, you either need huge surface area (big radar cross section), a big internal store, or low power consumption. But you need big power consumption to move fast and do damage. An internal store will likely be needed for the times when you have to retract your heat spreaders due to enemy fire.

Read the Project Rho stuff (and Attack Vector Tactical) Very smart guys spending a lot of time thinking things out.

I'm not quite sure how all the physics works out, but everything I've read says there's no stealth in hard sci-fi.

Project Rho

Rocket Punk

I don't believe filtering for the sun is that difficult, amateur telescopes have filters for looking at the sun. Any object obscuring the sun should then stand out. I think you can apply the techniques used for observing sun spots...

Cooling the craft will take a large amount of surface area, which will drive up the radar cross section.

Please describe a stealth system that is usable in space and effective against both IR and radar.

I mean 1 in 1000 or 1 in 2000 from the general population might be able to understand a functional language really well (.01 * [.1 or .05]).

Is that really the best choice for a language used in writing web pages? (Which should be available to anyone with a little technical savvy)

We shouldn't be expanding the impact of JavaScript. We should be going about replacing it.

I haven't used Haskell. How similar is it to ML?