Astrobe Forum

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/updates/2024/cn-2024-03-01/

Main addition: hybrid kernel variant (kernel-v2): https://oberon-rtk.org/docs/lib/kernel- ... l-v2-desc/

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

Recent changes and additions: 1) https://oberon-rtk.org/updates/2024/cn-2024-02-13/: stack usage checking Example program: https://oberon-rtk.org/docs/examples/v2/stackusage/ 2) https://oberon-rtk.org/updates/2024/cn-2024-02-16/: bootrom access Example program: https://oberon-rtk.org/docs/examples/v...

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

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

New example program: https://oberon-rtk.org/docs/examples/v1/messaging/

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

Recent changes and additions: 1) https://oberon-rtk.org/updates/2024/cn-2024-01-30/: signals and semaphores for thread synchronisation. Example programs: https://oberon-rtk.org/docs/examples/v2/signalsync/ and https://oberon-rtk.org/docs/examples/v2/semaphoresync/ 2) https://oberon-rtk.org/updates/2...

The ARM Cortex-M Oberon Programmers Guide states in section 4.1 ARRAY of BYTE: If the formal parameter is an array of bytes with a fixed size it can accept actual parameters of any type, except POINTER, whose size is the same number of bytes [...] Example 1: TYPE Word = ARRAY 4 OF BYTE; PROCEDURE p0...

Latest changes and extensions: https://oberon-rtk.org/updates/2024/cn-2024-01-29/ Main extension: reading from serial terminals: https://oberon-rtk.org/concepts/architecture/text-io/ New example program: https://oberon-rtk.org/docs/examples/v1/readterminal/ Some thoughts about the implications of us...

Made a few library changes, mostly to the text output machinery: https://oberon-rtk.org/updates/2024/cn-2024-01-17/ Added a new example program, showing how to avoid busy waiting for a peripheral: https://oberon-rtk.org/docs/examples/v2/nobusywaiting/ Edited the kernel description for structure and ...

Today, I have made available a first set of Oberon modules to program the RP2040 using Astrobe for Cortex-M0, v9.0.3. There's also a tool to transmogrify Astrobe '.bin' file to the contents and UF2 format for the RP2040. The library contains as of today: 1) Basics to get off the ground: clocks, rese...