trackdisk.device + slow ram - not friendly with one another?

MethodGit · 27 March 2016, 01:05

Okay, very very very simple question. Is there any way to make trackdisk.device - aka JSR -1C8(A6) - actually write data into slow memory - aka - $C00000+ - ?

I tried to do this but although the disk goes past the tracks as per usual the data I want written never actually appears in that section of memory afterwards. Is there another command I need to run first before invoking that JSR or is it never going to be possible in a gajillion years?

Leffmann · 27 March 2016, 01:34

It's been possible for 25 years or so, since Kickstart 2.0. If you're on 1.4 or earlier you have to load to chipmem and copy from there.

hooverphonique · 27 March 2016, 15:48

Quote:

Originally Posted by Leffmann

It's been possible for 25 years or so, since Kickstart 2.0. If you're on 1.4 or earlier you have to load to chipmem and copy from there.

really? can't remember I ever ran into that td.device requires a chipmem buffer.. suppose it uses the blitter for the mfm codec then?

phx · 27 March 2016, 16:40

Quote:

Originally Posted by hooverphonique

suppose it uses the blitter for the mfm codec then?

Exactly.

27 March 2016, 01:05	#1
MethodGit Junior Member Join Date: Dec 2002 Location: The Streets Age: 39 Posts: 2,731	trackdisk.device + slow ram - not friendly with one another? Okay, very very very simple question. Is there any way to make trackdisk.device - aka JSR -1C8(A6) - actually write data into slow memory - aka - $C00000+ - ? I tried to do this but although the disk goes past the tracks as per usual the data I want written never actually appears in that section of memory afterwards. Is there another command I need to run first before invoking that JSR or is it never going to be possible in a gajillion years?

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27 March 2016, 01:34	#2
Leffmann Join Date: Jul 2008 Location: Sweden Posts: 2,269	It's been possible for 25 years or so, since Kickstart 2.0. If you're on 1.4 or earlier you have to load to chipmem and copy from there.

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