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  • RTM-Z80 multitasking kernel

    From ladislau szilagyi@21:1/5 to All on Sat Mar 12 23:57:36 2022
    Hi all,

    RTM/Z80 is a multitasking kernel, built for Z80 based computers, written in Z80 assembly language, providing its users with an Application Programming Interface (API) accessible from programs written in the C language and the Z80 assembly language.

    It is intended to be a simple and easy to use learning tool, for those who want to understand the tips and tricks of the multitasking software systems.

    On RC2014, an RTM-Z80 application may be run as a CP/M .COM executable, or may be loaded as a .HEX file under the SCM monitor, or may be stored on EPROM.

    RTM-Z80 apps can be executed also on the Udo Munk's Z80SIM.

    See https://github.com/Laci1953/RTM-Z80

    Ladislau

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  • From Udo Munk@21:1/5 to ladislau...@euroqst.ro on Sun Mar 13 09:01:03 2022
    ladislau...@euroqst.ro schrieb am Sonntag, 13. März 2022 um 08:57:37 UTC+1:
    RTM-Z80 apps can be executed also on the Udo Munk's Z80SIM.
    Very nice, that allows to poke around in a multitasking kernel and study all the inner workings.

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  • From ladislau szilagyi@21:1/5 to All on Sun Mar 13 10:04:44 2022
    Pe duminică, 13 martie 2022, la 18:01:04 UTC+2, Udo Munk a scris:
    ladislau...@euroqst.ro schrieb am Sonntag, 13. März 2022 um 08:57:37 UTC+1:
    RTM-Z80 apps can be executed also on the Udo Munk's Z80SIM.
    Very nice, that allows to poke around in a multitasking kernel and study all the inner workings.

    Yes, Udo, that's exactly the idea: using the RTM-Z80 manual as a reference, anyone can study the source files to see how the kernel works.

    Also, the DEMO folder contains various RTM-Z80 applications, very useful to see how the functions of the system can be used.

    I would like to thank Udo once again for the excellent quality of his Z80SIM, which I used extensively while developing my multitasking kernel !

    regards,
    Ladislau

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  • From Roger Ivie@21:1/5 to ladislau...@euroqst.ro on Mon Mar 14 05:26:09 2022
    On Sunday, March 13, 2022 at 10:04:45 AM UTC-7, ladislau...@euroqst.ro wrote:

    Yes, Udo, that's exactly the idea: using the RTM-Z80 manual as a reference, anyone can
    study the source files to see how the kernel works.

    The September, 1983 BYTE magazine presented a simple cooperative multi-tasking kernel
    for the 8080. I Z80-ized it and used in a product I was developing at the time. I currently
    use an ARM-based descendant in some of my stuff.

    Page 445: https://archive.org/details/byte-magazine-1983-09
    --
    roger ivie
    roger.ivie@gmail.com

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