Astrobe Forum

Latest update and changes: https://oberon-rtk.org/description/changes-2024-04-16/ New example program to introduce the micro-seconds tasking system, with measurements and evaluations of minimum set-up time and minimum time between consecutive tasks, run from flash memory or SRAM: https://oberon-rtk....

Compiling MODULE TestConst; CONST C = 07FFFFFFFH + 1; END TestConst. results in Line Col 2 28 Error: compiler exception System.OverflowException: Arithmetic operation resulted in an overflow. at ORG.ORG.AddOp(Int32 op, Item& x, Item& y) at ORP.ORP.SimpleExpression(Item& x) at ORP.ORP.expression(Item...

Latest updates and changes: https://oberon-rtk.org/description/changes-2024-04-04/ Astrobe for Cortex-M0 v9.1 is now the required baseline. New example program to measure code loading times from Flash, with and without caching, and from SRAM: https://oberon-rtk.org/examples/codeloading/ GitHub repo:...

This is for the RP2040. I am aware that Astrobe for Cortex-M0 does not yet officially support this MCU. Background, concepts, solution approach, as well as measurements and results related to my use case are described here: https://oberon-rtk.org/examples/codeloading/ In a nutshell, interrupt handle...

What is the best way to copy a procedure, eg. from Flash memory to RAM? For example: MODULE M; PROCEDURE p0; END p0; PROCEDURE p1; END P1; END M. Getting the procedure's starting address is straight forward, but how to detect its ending address? Scanning for 'pop' is not safe, as any relevant consta...

Test code (Astrobe v9.1 for Cortex-M0): MODULE M; PROCEDURE p(s: SET); END p; PROCEDURE run; VAR k: INTEGER; BEGIN p({k}); p({13}) END run; END M. Partial assembly code: PROCEDURE run; VAR k: INTEGER; BEGIN . 12 0CH 0B500H push { lr } . 14 0EH 0B081H sub sp,#4 p({k}); . 16 010H 09800H ldr r0,[sp] . ...

Latest updates and changes: https://oberon-rtk.org/description/changes-2024-03-01/

Main addition: hybrid kernel variant (kernel-v2); https://oberon-rtk.org/kernel/kernel-de ... kernel-v2/

GitHub repo: https://github.com/ygrayne/oberon-rtk

Recent changes and additions: 1) https://oberon-rtk.org/description/changes-2024-02-13/: stack usage checking Example program: https://oberon-rtk.org/examples/stackusage/ 2) https://oberon-rtk.org/description/changes-2024-02-16/: bootrom access Example program: https://oberon-rtk.org/examples/bootro...

Latest changes and additions: https://oberon-rtk.org/description/changes-2024-02-10/

Added inter-core messaging: https://oberon-rtk.org/description/inter-core-messages/

New example program: https://oberon-rtk.org/examples/messaging/

GitHub repo: https://github.com/ygrayne/oberon-rtk

Recent changes and additions: 1) https://oberon-rtk.org/description/changes-2024-01-30/: signals and semaphores for thread synchronisation. Example programs: https://oberon-rtk.org/examples/signalsync/ and https://oberon-rtk.org/examples/semaphoresync/ 2) https://oberon-rtk.org/description/changes-2...