mirror of https://github.com/Treeki/WindEmu.git
55 lines
2.2 KiB
Markdown
55 lines
2.2 KiB
Markdown
WindEmu is an attempt to emulate the Psion Series 5mx (or as internally called, "Windermere"). I don't think anyone's done this before... or if they have, I can't find evidence online!
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- Platform-independent core emulation library written in C/C++
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- Qt5 front-end (currently quite barebones...)
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- Very experimental
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- Boots from the Psion 5mx Pro's Sys$rom.bin
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Hardware features:
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- ✅ LCD: partially implemented
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- ✅ Keyboard: implemented
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- ❌ Touch panel: not implemented
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- ❌ Audio: not implemented
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- ❌ Serial/UART support: stubbed out
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- ❌ ETNA (PCMCIA/CompactFlash): mostly stubbed out
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- ✅ RTC: implemented
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- ❌ RTC alarm: not implemented
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- ❌ Standby mode: not implemented
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Known issues:
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- ROM path is hardcoded into WindQt/main.cpp right now
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- Memory protection is not enforced
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- Memory errors do not result in an Abort exception but instead make the emulator freak out
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- Some keys do not work properly
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- State is not saved (just like a real Psion :p)
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- LCD controller is almost entirely unimplemented aside from the very basics to display the framebuffer
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- EPOC misbehaves massively with memory banks larger than 0x800000 (may be an OS design flaw? need to confirm)
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Copyright
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---------
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The Psion-specific code is copyright (c) 2019 Ash Wolf.
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The ARM emulation core is a modified version of the one used in [mGBA](https://github.com/mgba-emu/mgba) by endrift.
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WindEmu is available under the Mozilla Public License 2.0.
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Resources
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---------
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Special thanks to [PsiLinux/OpenPsion](http://linux-7110.sourceforge.net/index.shtml) for providing an avenue to learn about the hardware definitions (registers, etc).
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More information on the hardware is available in the NetBSD port: http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/arch/epoc32/?only_with_tag=MAIN
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The EPOC C++ SDK is available here: https://web.archive.org/web/20071010101808/http://www.psionteklogix.com/teknet/pdk/netpad-pdk/epoc_downloads.htm
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The ARM variant used in the 5mx is documented here: http://infocenter.arm.com/help/topic/com.arm.doc.ddi0033d/DDI0033D_710a_prelim_ds.pdf
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The datasheet for the CL-PS7110 SoC used in the Series 5 (_not_ the 5mx) is available here: https://www.igorkov.org/revo/datasheets/CL-PS7110.pdf - while not identical to Windermere, some components operate in similar fashion.
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