11 replies to this topic

[Brazzucko]

I have asked some time ago about the battery consumption of the calcs.

For what I know the BASIC programs use the calculators CPU at 100%, that means that the battery consumption are extremely high right, so why the same don?t happen whit the AMS/C games and programs.

Why whit the CPU at 100% the BASIC games and programs are slower??

[huhn_m]

Because the CPU needs a lot of clock cycles.
On asm you can execute arround 400000 Instructions / second (every instruction takes between 2 and 15 clock cycles) and now compare it to the basic files.

on asm you can set the CPU in HALT mode so it does nothing but wait for input.

If you want to do so in Basic you have to loop and this means let the PC work all the time.

But while working the consumption of power is the same (and also with programs that don't have a HALT command.
what I think are most.

[betoe]

Thats the great advantaje of the assembler. I read that intel's 8086 CPU make .5MIPS (million of instructions per second), a number like the huhn_m mention. In the 80286 this number is 2.5 MIPS.

[huhn_m]

Yes i read once the AFX makes 4Million instructions / second but each command/instruction takes 2-15 clock cycles
and so i made the number somewhat lower

And the 80286 has fewer MIPS and is faster though because of the folowing:

8086:
MOV Al,moffs8 -> 10 Clock cycles

80286:
MOV AL,moffs8 -> 5 Clock cycles

The operations take fewer clock cycles.

[betoe]

Do you have some documents of the AFX hardware? I have seen some in french websites (but i have a lot of problems with french and the translations of websites like babelfish are too bad). I'm too interested in that...

[huhn_m]

I have the opcode / instruction table of the processor including a clock cycles table. Do you want it?
I'll either upload it or send it to you via e-mail.

[betoe]

Yes i want it.

[huhn_m]

Everyone can download it

Here

from My site

[Brazzucko]

Very cool thanks a lot for that huhn_m, I only get info in French, for me there is no problem I understand it, but for my Brazilian friends that ask me for that info, they don?t understand French??

[betoe]

The link of huhn_m dont work here... But i search in google "v30inst.pdf" and i find it in this website:

http://shine.sourcef...ets/v30inst.pdf

[huhn_m]

It works. You only shouldn't click on it.
Right click and select "save as .."
or if the error page appers click in the adresse filed (of your browser) and press enter to reload the url.

Geocities prevents downloads from outside since some time.

PLEASE NOTE: THIS APPLYS TO ALL MY FILES!

[betoe]

"Right click and select save as .."

You are right huhn_m !