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jarkko

Jarkko Sakkinen

https://blogsystem5.substack.com/p/x86-64-programming-models
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jarkko

Jarkko Sakkinen

Reply to @jarkko
Recommended reading also: "DOS memory models"
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vbabka

Reply to @jarkko
@jarkko yeah good stuff
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vbabka

Reply to @vbabka
@jarkko fiddling with all that so many years ago has foreshadowed my mm career in retrospect. Like the author, I was able to do the job of freeing the conventional memory, but didn't really know what happens behind the scenes, lol.
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jarkko

Jarkko Sakkinen

Reply to @vbabka
@vbabk I have not that much but one thing I did back in 2012 was arch/x86/realmode, which is relocatable (at least a bit more given limitations) version of the trampoline code used when waking up from suspend etc. It was like historical exhibition tour on x86 legacy layers at the same time ;-)

And as a teen I wrote a few 3D engines and stuff like that for MS-DOS then using either DOS/4GW or Tran's PMODE (never did my own so called "DOS extender") :-) Good times...
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jarkko

Jarkko Sakkinen

Reply to @jarkko
@vbabka Turbo Assembler was like JavaScript of that day ;-)
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jarkko

Jarkko Sakkinen

Reply to @jarkko
@vbabka Nice stuff to read and watch YouTube videos, a memory lane to good old days :-)
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jarkko

Jarkko Sakkinen

Reply to @jarkko
@vbabka Related, a generational experience:

mov ax, 13h
int 10h

;-)
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vbabka

Reply to @jarkko
@jarkko that's indeed very graphics array, sir
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