Astrobe Forum

The full documentation and source code of Niklaus Wirth's and Paul Reed's 2013 implementation of the Project Oberon OS on a Xilinx FPGA can be downloaded from:

http://people.inf.ethz.ch/wirth/Project ... index.html

augustk wrote:It is unfortunate that character array variables cannot be exported.

Export of record and array variables in read-only mode was implemented in v5.1 of Astrobe following the changes in revision Rev 1.10.2013 / 10.03.2014 of the Oberon Language Report.

4GlCoder wrote:Does this influence the current 60 character limitation?

The maximum length of a string constant has been increased to 256 characters (including the terminating null) in the v5.2 releases of Astrobe.

Not exactly what I had in mind ;) If nobody can beat Alex's time there will be a second prize of a $US50 Amazon Gift Voucher awarded to the person who submits the fastest module which as well as being faster than the original is also no bigger (code size) than the original. I have also had to amend ...

For all the details see the Oberon Language Forum

A $US50 Amazon Gift Voucher will be awarded to the person who can rewrite the following module so that it produces the same results but executes in the least amount of time: MODULE Quiz; VAR a1*, a2*: ARRAY 1000 OF INTEGER; i: INTEGER; PROCEDURE Init*; BEGIN FOR i := 0 TO LEN(a1) - 1 DO a1[i] := i; ...

The behaviour of DIV and MOD operators with negative operands in Astrobe for Cortex-M3/M4 did not conform to the Oberon language report in v5.1 and earlier versions. This has been fixed in v5.2 of both products. The Oberon language report defines DIV and MOD as follows: The operators DIV and MOD app...

We are planning to introduce a Developer Edition which will include all the features of the Professional Edition with some additional extras. One of these will be the source code of the command-line linker. This will enable you to customise it to suit the memory maps, interrupt vector locations and ...

What specific problem are you trying to solve that you think you could only achieve using inline assembler?

Two in-line functions in Astrobe for Cortex-M are used to efficiently extract or update a bitfield, i.e. just a portion of 32-bit word. Each efficiently uses a single Thumb-2 instruction: BFI: Bitfield Insert UBFX: Unsigned Bitfield Extract PROCEDURE BFI*(VAR x: INTEGER; msb, lsb, y: INTEGER); PROCE...