Reserving a few bytes in top of MSX memory at startup

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Van zeilemaker54

Champion (301)

afbeelding van zeilemaker54

04-12-2020, 14:37

NYYRIKKI wrote:

Just a thinking out loud... These TPA memory reservation issues for DOS, BASIC & ROM would need own Wiki-page I think.

I am willing to write such a Wiki. But it takes a little time to write a good article and produce some example code. I think the example code will be to large to put on the wiki page itself. Is there already a Git repository somewhere to put the code ? The wiki page could then redirect to the appropriate file in the Git repsitory. Any thoughts on that ?

Van zeilemaker54

Champion (301)

afbeelding van zeilemaker54

22-12-2020, 19:46

zeilemaker54 wrote:

I am willing to write such a Wiki. But it takes a little time to write a good article and produce some example code. I think the example code will be to large to put on the wiki page itself. Is there already a Git repository somewhere to put the code ? The wiki page could then redirect to the appropriate file in the Git repsitory. Any thoughts on that ?

I have added some text and links to example code to the "Develop a program in cartridge ROM" wiki, section "Allocate RAM (workarea)". Hope this helps....

Van brawaga

Resident (44)

afbeelding van brawaga

01-01-2021, 21:22

Thanks again, this probably makes more sense, hence H.STKE looked weird for me, H.CLEA is more clear for this usage. I will try this one: https://sourceforge.net/p/msxsyssrc/git/ci/master/tree/examp..., for now I used H.READ for postponed initialization without conflicts, but did not try to allocate memory in that phase. Hope your code will work for me.
What's F349h variable by the way? I did not find it in the list of system variables.

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