Emulator Assembler 6502
Wednesday, March 14, 2007While we're on the subject of nostalgia, here's a nice emulation of the historic 6502 microprocessor, mounted in the 80s in console and computer like Apple, Nintendo NS and the Commodore 64 (which then passes to 6510, ...). This beautiful gem is written entirely in JavaScript, running in practice on all browsers (Safari to Opera), with the only defect of being somewhat slow. However it is worth a try. The site (http://www.6502asm.com/) find some nice examples, slow but curious.
For the former Commodore 64 programmers Assembly considered that the video screen does not display the characters, so codes like the one below will not work:
- Start: LDA # $ 65
- JSR $ FFD2
- RTS
It should also be considered that the mapping video is different from that of the Commodore 64, so do not think in these terms (even the POKE 53280 and 53281 work - $ D020 and $ D021). This video emultatore starting from $ 200 (not $ 400, 1024 in decimal) for up to $ 5FF, as well as the video area is 32 x 32 pixels (for a total of 1024).
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
Everything you need for 6502
Related Post
Loading ... 
undolog  »Blog Archive » Emulator Assembler 6502 ...
While we're on the subject of nostalgia, here's a nice emulation of the historic 6502 microprocessor, mounted in the 80s in console and computer like Apple, Nintendo NS and the Commodore 64 (which then passes to 6510, ...). This beautiful jewelry ...
[...] Emulator microprocessor 6502 Source: [Undolog] [...]
[...] Emulator microprocessor 6502 Source: [Undolog] [...]