MAMEWorld Forums - News - Re: MAME 0.168

> I know this is kinda self-promotion, but this release is a big update for the Osborne
> 1 computer. Although it wasn't much of a home computer with its tiny text-only
> display and beep-only sound, it was significant as the one of the first successful
> portable business computers. As such, it has a decent library of CP/M business
> applications. There are also a number of text-based games for it, including some
> popular Infocom adventures.
>
> MAME now correctly emulates the quirky memory banking used in the Osborne 1, so
> memory test programs now pass, and writes to memory-mapped I/O devices no longer
> clobber system memory. Undocumented ROM and I/O mirroring is now emulated on the off
> chance that some software may use it. This improvement was made possible in part
> thanks to O. Galibert’s improvements to the Z80 core for the Sinclair home computers.
>
> MAME now supports the features of the SCREEN-PAC™ 104-column video add-on board. It
> can be enabled or disabled through the system configuration menu. Scrolling behaviour
> has been corrected in standard- and high-resolution modes. The beeper sound
> generation is now accurate to the schematics, too.
>
> Serial port emulation has been added, so you can try out CP/M dial-up terminal
> software like AMCALL, or copy files in and out of the emulated Osborne 1 using the
> PIP command. Serial speed jumpering configuration is available via the system
> configuration menu.
>
> In other user-facing changes, the soft reset key is now available (it actually
> generates a non-maskable interrupt rather than actually resetting the machine), and
> you can view the contents of video memory in MAME’s tilemap viewer (the characters
> are displayed in memory order – underline, intensity and scrolling are not
> considered).
>
> So if you want to know what a journalist or travelling salesman might have had to
> play with in the early ’80s, give the osborne1 a spin.
>
> Robbbert has also made the (less commercially successful) Osborne Vixen usable. I see
> you thanked OG in your commit message Robbbert, but there’s nothing there that wasn’t
> possible before his latest Z80 changes. It’s supported having different program read
> handlers for ages to support the Capcom Kabuki encrypted Z80 :P

What exactly does the Capcom Kabuki encrypted Z80 do?

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