Commander X16

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What happens if you open and close the command/status channel instead of a file?

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I have upgraded my commander-r39 branch to the new Kernal code.  I haven't pushed it to master yet because I have problems with file loading.  Programs that want to load dynamic drivers can't get them.  I haven't investigated it yet. <a href="https://github.com/greg-king5/cc65/tree/commander-r39" r...

You should call cbm_k_clrchn() <em>before</em> you call cbm_k_close(). It's the opposite of when you started to use the file: <ol> <li> OPEN the file, </li> <li> connect to the file. </li> </ol> When you're finished, you must: <ol> <li> disconnect from the file, </li> <li> close the file. </li> </o...

Tape files are opened by Kernal.  Therefore, OPEN can know when they can't be found.  But, Kernal asks DOS to open disk files.  Therefore, OPEN can't know about them. With READST, bits 6 and 1 aren't connected to each other.  It's a coincidence if bit 6 happens to be set when bit 1 is set.  Always ...

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What kind of data do you want to put in a file? <ol> <li> Some text before it's printed. </li> <li> Or, something that you programmatically formatted and printed onto the display screen? </li> </ol> (If it's the second kind, then you will have screen-codes in VRAM, not PetSCII in main RAM.)

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