ac.tomo Posted May 6, 2022 Share Posted May 6, 2022 I'm trying to output data through using a channel (OPEN #1,8,0,"H6:file") in ALTIRRA but I'm having problems, what I really want to do is 'append' to an existing data file, but the OPEN #1,9,0,"H6:file" isn't working quite right, when I try to add data to the file (append) the old data is deleted. Is my "H6:" part correct? Someone please help. Quote Link to comment Share on other sites More sharing options...
flashjazzcat Posted May 6, 2022 Share Posted May 6, 2022 Reproducible here, but only when using the CR translation devices (H6:-H9:). Problem does not occur with H1:-H4:. Quote Link to comment Share on other sites More sharing options...
ac.tomo Posted May 6, 2022 Author Share Posted May 6, 2022 1 minute ago, flashjazzcat said: Reproducible here, but only when using the CR translation devices (H6:-H9:). Problem does not occur with H1:-H4:. Thanks for that flash., I'll try it tomorrow. Quote Link to comment Share on other sites More sharing options...
ac.tomo Posted May 6, 2022 Author Share Posted May 6, 2022 Im also tinkering about with something at the mo. and would like to know whether the OS in a real atari is the same as that in the Altirra and atari800win emulators or are there any differences. Quote Link to comment Share on other sites More sharing options...
flashjazzcat Posted May 6, 2022 Share Posted May 6, 2022 Normally they're identical, although you need to source the stock OS yourself with Altirra since it ships with a completely reimplemented OS and BASIC. Quote Link to comment Share on other sites More sharing options...
phaeron Posted May 7, 2022 Share Posted May 7, 2022 I've fixed the bug in Altirra's H: device with appending to files on H6-H9:, it'll be in a future release. 4 Quote Link to comment Share on other sites More sharing options...
ac.tomo Posted May 7, 2022 Author Share Posted May 7, 2022 Just to clarify, the atari800win emulator os IS identical to a real atari? Quote Link to comment Share on other sites More sharing options...
flashjazzcat Posted May 8, 2022 Share Posted May 8, 2022 16 hours ago, ac.tomo said: Just to clarify, the atari800win emulator os IS identical to a real atari? I wasn't aware that Atari800WinPlus shipped with any OS at all. You can Google real OS ROM images, anyway. Quote Link to comment Share on other sites More sharing options...
Rybags Posted May 9, 2022 Share Posted May 9, 2022 OS images will typically be identical. But emulator "patches" like fast SIO or redirected P: can insert illegal instructions in places that act as traps so the emu knows when to perform the intercepted handling. Quote Link to comment Share on other sites More sharing options...
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