Break Into Chat

“Creaks” scene 45: Goat glitch

January 17, 2021 Break Into Chat

I have long loved playing games by Amanita Design with my kids, particularly “Machinarium.” They create such stellar worlds with interesting characters, without a single word of intelligible dialogue. So it was like Christmas in January when I read on Twitter that Amanita had released a game called “Creaks” in …


Exploring Atari VCS/2600 Adventure – part 4

January 13, 2021 Sub-Etha Software

See also: part 1, part 2, part 3, part 4 … and more to come… Objectively speaking Welcome back to the world of Atari Adventure! After spending some time figuring out how the rooms were drawn, it’s time to look at how the game objects are drawn. Adventure contains many …

Apple II Europlus
Apple II

Community Service

January 12, 2021 europlus

As per the official WOzFest 18 announcement, the theme for the upcoming event is Community Service. I’ve been thinking a lot lately about giving back to our retrocomputer communities – it’s something I’m passionate about because of the significant help and support I’ve received not only from my own local community …

Sub-Etha Software

Benchmarking the CoCo keyboard – part 6

January 11, 2021 Sub-Etha Software

See also: part 1, part 2, part 3, part 4 and part 5 (coming “soon”). Let’s jump right in with a mystery… This code: 0 REM arrowbench.bas 10 TIMER=0:FOR A=1 TO 1000 20 POKE&H155,&HFF:POKE&H156,&HFF:POKE&H157,&HFF:POKE&H158,&HFF 30 IF PEEK(&H155)=&HF7 THEN IF Y >. THEN Y=Y-1 40 IF PEEK(&H156)=&HF7 THEN IF Y. THEN X=X-1 60 IF PEEK(&H158)=&HF7 THEN IF X.THEN Y=Y-1 40 IF PEEK(D)=V THEN IF Y.THEN X=X-1 60 IF PEEK(R)=V THEN IF X …

Apple II Europlus
Apple II

WOzFest 18 Announcement

January 11, 2021 europlus

I’m very happy to announce the date for the next WOzFest: WOzFest 18 will be held on Saturday 20 March 2021, starting at midday Sydney time (UTC+11:00). The theme for WOzFest 18 is “Community Service” – I’m asking attendees to bring something to upload to the Internet, to update an online resource, to do some …


Running Z80 CP/M at just over 18Mhz

January 11, 2021 Dan Hevey

No, there’s no CP/M card in this IIe. It’s all being done through the little SC131 CP/M box. It has a Z180 processor and has 2 high speed serial ports. I’m actually attaching to it through a Raspberry Pi, but it feels like it’s running locally. By …


Doing some work on the non-gate array model 4

January 9, 2021 Dan Hevey

Sometimes the video would shrink & grow after the machine’s heated up, like there’s a loose connection, or maybe a bad solder joint. After some checking, solder joints seem solid. Seems to have been the connector on the ribbon connecting the video board to the PS and main board. The …