[Oberon] FPGA Oberon vs Ceres

Skulski, Wojciech skulski at pas.rochester.edu
Sun Jan 27 18:02:41 CET 2019


The upper levels of the System may stayed, but the lower levels have probably changed a bit. I think that low level drivers have changed, like for example the disk which is now SD card served over SPI. The network is now wireless, so I am not sure if it is the same as the Ceres RS-422.

There are some little bugs as well. On our copy running on Pepino I noticed that the mouse cursor wraps around the screen. It disappears on the right and reappears on the left, or vice versa. Not sure if this was the case with Ceres. 

From: Oberon [oberon-bounces at lists.inf.ethz.ch] on behalf of Andreas Pirklbauer [andreas_pirklbauer at yahoo.com]
Sent: Sunday, January 27, 2019 8:47 AM
To: ETH Oberon and related systems
Subject: [Oberon]  FPGA Oberon vs Ceres

   > Did anybody who worked with the original Ceres machine compile a list of
   > "what is missing" in the new FPGA Oberon? Perhaps some parts could be added back :-)

If such a list existed, it would be very short. The system was carried forward to FPGA
essentially unchanged, i.e. as it existed 30 years ago. The biggest difference is of
course the targeted processor and consequently the compiler (backend).

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