Felipe Sanches @juca_gnu

Software Freedom activist, FontBakery developer/maintainer, retrocomputing enthusiast and MAME code contributor. mamedev.emulab.it/fsanches/ London Joined November 2009

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Felipe Sanches @juca_gnu

a year ago

@LuizaJarovsky But the NOKIA 3310 was released in the year 2000... (en.wikipedia.org/wiki/Nokia_3310)

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Felipe Sanches @juca_gnu

2 years ago

@elonmusk en.wikipedia.org/wiki/GNU_Manif…

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Felipe Sanches @juca_gnu

3 years ago

@SemanaEncerrada Chamando o Gibeira: "Traz o gelo!"

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Felipe Sanches @juca_gnu

3 years ago

@travisgoodspeed @lafp I noticed that there are 66 rows, which are 2 more than the 64 what would be needed for exactly 2kbytes of ROM. Maybe there's 1 parity bit for every 32 bits of data?

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Felipe Sanches @juca_gnu

3 years ago

@travisgoodspeed @lafp I don't know. I haven't seen much Z8 code other than this snippet.

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@travisgoodspeed @lafp With this custom build you can run any of these Z8-based emulators with MAME's -debug option which will give you an interactive debugger, letting you inspect memory contents, view disasm listings, place breakpoints, etc.

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Felipe Sanches @juca_gnu

3 years ago

@travisgoodspeed @lafp For a custom build: QT_SELECT=5 make SUBTARGET=z8devices SOURCES=src/mame/handheld/pensebem.cpp,src/mame/fidelity/msc.cpp,src/mame/learsiegler/adm23.cpp,src/mame/metro/metro.cpp,src/mame/misc/amerihok.cpp,src/mame/quantel/dpb7000.cpp,src/mame/skeleton/bert.cpp TOOLS=1 REGENIE=1

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Felipe Sanches @juca_gnu

3 years ago

@travisgoodspeed @lafp The TOOLS=1 option will make it build MAME's Unidasm, which contains a standalone Z8 disassembler.

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Felipe Sanches @juca_gnu

3 years ago

@travisgoodspeed @lafp These are the MAME drivers that rely on the Z8 mcu: src/mame/ddr/jtc.cpp src/mame/fidelity/msc.cpp src/mame/learsiegler/adm23.cpp src/mame/metro/metro.cpp src/mame/misc/amerihok.cpp src/mame/quantel/dpb7000.cpp src/mame/skeleton/bert.cpp

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Felipe Sanches @juca_gnu

3 years ago

@travisgoodspeed @lafp There are a few devices emulated on MAME that use a Z8 chip, so we may take a look at the ROMs (and disasm) of those to collect some samples of typical code patterns. Also MAME has a good disassembler for the Z8.

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Felipe Sanches @juca_gnu

3 years ago

@travisgoodspeed @lafp This is amazing!!!

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Felipe Sanches @juca_gnu

3 years ago

@_charlescornell Can you re-harm this, please? instagram.com/reel/Cv7k9FgoM…

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Felipe Sanches @juca_gnu

3 years ago

@this_is_mallory The real reason why we can't see is because your webcam is covered!

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Felipe Sanches @juca_gnu

3 years ago

@eliheuer @FontTools The goal is to make it even clearer to the users (and developers) that FontBakery is not vendor-biased and can be used by anyone who needs automated quality assurance for fonts!

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Eli אליהו إلياس @eliheuer

3 years ago

FontBakery is now part of the @FontTools organization on GitHub! github.com/fonttools/font…

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Eli אליהו إلياس @eliheuer

3 years ago

I wrote a new FontBakery check that was merged into the Universal Profile recently! It gives a WARN if uppercase glyphs are not vertically centered in the em box (with %5 of the UPM as a margin of error). github.com/fonttools/font…