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While we're on the subject of nostalgia, here is a nice emulator of the historian of the 6502 microprocessor , mounted in the 80s in the console and computers such as Apple, Nintendo NS and the Commodore 64 (which she graduated in 6510, ...). This cute little gem is written entirely in JavaScript, running on virtually all browsers (Safari, Opera), with the only downside being a little slow. But worth it. On site ( http://www.6502asm.com/ ) found some nice examples, but curious lens.

For the former Commodore 64 programmers Assembly considered that the video screen does not display the characters, then code like this will not work below:

funzioneranno – $D020 e $D021). It should also be considered that the video mapping is different from that of the Commodore 64, so do not think in those terms (even the POKE 53280 and 53281 work - $ D020 and $ D021). In this emultatore the video part from address $ 200 (and not $ 400, 1024 in decimal) up to $ 5ff, as also the video area is 32 x 32 pixels (for a total of 1024).
e SEI non avranno effetto. Even IRQs are not implemented, then statements such as CLI , RTI and SEI have no effect. Further details on this emultatore (such as timers, keyboard input, etc ...) can be found at:

Information sull'emultatore

• http://www.6502asm.com/help.html

Everything you need for the 6502

• http://www.6502.org/tutorials/
• http://www.6502.org/tutorials/6502opcodes.html

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