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a ZX Spectrum emulator for the browser

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# Improve keyboard mapping: In additon to existing key mappings, map symbol keys to "symbol shift + Spectrum key", for example, map apostrope key to SYM+7. (We take care to...

Hi, I'm just setting up JSSpeccy 3 over at Spectrum Computing, and we think we found a bug: Set machine type to 48K, and tick auto tape loading and Instant...

How about an option to get the memory state? This would come in handy for saving and loading game state. Like in the QAOP emulator for example. Like "'saveSnapshot'"

Hello. Nice little emulator! I want this to support [Spectranet cartridge](https://www.bytedelight.com/?page_id=3515), which implements networking functionality. Fuse emulator [supports it](https://github.com/speccytools/fuse-for-macosx/blob/gdbserver/peripherals/spectranet.c). The idea is, spectranet has [Wiznet W5100 TCP/IP controller](https://github.com/speccytools/fuse-for-macosx/blob/gdbserver/peripherals/nic/w5100_socket.c) on board,...

Hello, and congrats on your great emulator! I have forked your project (and named it jsspeccy3-mobile) and added per-game, customizable touch keys, for sharing an URL with the definition for...

I tested this great thing on Demozoo; the demos work mostly fine, but going full screen just flashes fullscreen and goes back windowed. Chrome 92.0.4515.159 Maybe a glitch in Demozoo...

Awesome emulator! 🙂 I experience slightly choppy sound in Firefox 91.0 64-bit on Windows 10, in Chrome it's flawless. Tested demo: https://demozoo.org/productions/297055/

If you start [Bear a Grudge](https://www.spectrumcomputing.co.uk/entry/490/ZX-Spectrum/Bear_a_Grudge) - jsspeccy3 initially outputs some high tones, more of these high tones can be heard around the 1 minute mark of the opening tune....

It would be great if there was some sort of memory viewer and/or debugger

Like `zx.researcher.su`.