Smarti, Schlepptopf - pöh laaaangweilich
Wer das Ding (wenn es denn einen Akku bekommt) im Zug ausm Rucksack hebt, Tastatur und Maus anschließt und loslegt ... 👀
Zitat:
Ein britischer Bastler hat den Macintosh aus dem Jahre 1984 im Miniformat nachgebaut. Er soll voll funktionsfähig sein
gerade einmal 62 Millimeter hoch
#Macintosh #RaspberryPiPico #RaspberryPi #Raspberry #PicoMac
I have pico-mac playing the system beep on an i2s dac (though when @adafruit @ladyada made a build locally, it didn't work for her, hmmmm, I'll get that sorted tomorrow)
in the process, I discovered an interesting problem that might be randomly corrputing a certain 740 bytes of RAM when pico-mac or umac is configured for a non-power-of-two memory size! https://github.com/evansm7/umac/issues/15
the fix seems to be another rom patch:
/* Fix up the sound buffer as used by BootBeep */
ROM_WR32(0x292, RAM_SIZE - 768);
and is also included in https://github.com/evansm7/umac/pull/14
you also avoid the problem if you configure pico-mac for 256kB, 512kB, 1024kB, etc.
more pico-mac stuffs on adafruit fruit jam with rp2350
left: 512x342 resolution on 640x480 framebuffer with hstx
right: 4MB mac emulated with psram (video reversed "because of reasons")
sadly, placing the main mac RAM in psram slows emulation down considerably. I haven't tried overclocking anything yet, that's for later.
And now, https://github.com/evansm7/pico-mac #picomac has been updated to support a VGA res desktop on an RP2040. 🥳
Yo! I pushed an update to https://github.com/evansm7/umac and now it can emulate a Mac Plus with unusually large screen resolutions. A couple of the patches to the Mac Plus ROM inform MacOS of the resolution (which just adapts!) and a dozen other hacks get it to draw Happy Mac/Sad Mac/Disc icons in roughly the right shape and roughly the right place. :)
#picomac is next; it looks like for the Mac 208K a VGA display (no borders!) will work well.
