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  1. Just to add. I already battled the stack...

    Just to add.

    I already battled the stack earlier. I'm setting it to min(0xf400,$HIGH).
  2. Thanks! YES! that's it!! DOS _does_...

    Thanks!

    YES! that's it!!

    DOS _does_ continuously switch between config "C" and config "D" not "B".

    I tracked down the OFLAG, and sure enough all i need to to is:

    (from initial D)
    *...
  3. Help using M4 memory map configurations

    Hi

    So I'm finally figuring this M4 malarkey out!

    It seems that DOS (LDOS6 in this case) starts a M4 in configuration "B" (see diagram). Presumably this is what most systems regards as "M4...
  4. I've got save/load now working on M4 under LDOS....

    I've got save/load now working on M4 under LDOS. There are a few glitches with the cursor, but i (think) i know what that is and will fix that as well soon.

    Also, i ought to tidy the format a bit...
  5. Just a quick update. I've added (somewhat...

    Just a quick update.

    I've added (somewhat primitive) save/load games;

    When you run, you're asked if you want to restore a previously saved game. Saying yes, trys to load "scott/sav:1" (sorry...
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    Fixed it! Duh! silly me, got the stack...

    Fixed it!

    Duh! silly me, got the stack paramers wrong wat round! no wonder it says "file not open",. wrong DCB.

    fixed now https://github.com/voidware/scott19

    save/load games work, except for...
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    help with disk I/O routines

    I'm trying to write a simple routine to write a buffer to disk using DOS and not getting anywhere;




    uchar ioBuf[256];
    static FCB fileIO;

    static void _setFile(const char* name)
    {
  8. I'm more than happy to include changes for the...

    I'm more than happy to include changes for the MC10 in the sourcecode. Is there a MC10 emulator?
  9. what is the mc10? I've tested this on TRS-80...

    what is the mc10? I've tested this on TRS-80 model 1, 3, 4 in emulator and on a real 4p.

    I think anything else, i'm going to need some help!
  10. Hi! Sorry, yes you noticed the missing...

    Hi!

    Sorry, yes you noticed the missing save/load game. oops!

    I do plan to implement this. Some of the code is there already, it "saves" into a buffer so that you can restart, but i just need to...
  11. Hi, Glad you like it! This project is work in...

    Hi, Glad you like it!

    This project is work in progress. I've done the dungeon generation and early version of movement, which needs refining - for example, you should be able to hold a key to move...
  12. Nice! I found for the display required, most...

    Nice!

    I found for the display required, most of the time is spent drawing horizontal and vertical lines. I think the original release would have really benefited from this kind of speedup. IIRC...
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    Aha! So the ROMS convert. I like the idea of...

    Aha! So the ROMS convert.

    I like the idea of testing the VID RAM, here's my plan:

    20 maps to 84('T') on a Model I without a lcase mod. So whenever a 'T' is printed, I'll write a 20, then read...
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    Hi! Thanks for your answer, this has been...

    Hi! Thanks for your answer, this has been helpful.

    So if i;
    POKE 15360,97

    I get a '!' on the screen, and if i PEEK it back, I get 33, so bit 6 is clobbered.

    And when i;

    A$=CHR$(97)
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    update; M4 seems to set the stack to 0x37a by...

    update;

    M4 seems to set the stack to 0x37a by default = 890 bytes.
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    TRSModel is 4 for both 4 and 4P currently. In...

    TRSModel is 4 for both 4 and 4P currently. In theory TRSModel could be 5 for 4P if i needed it.

    Yes, All code is built with SDCC.

    You're right about the interrupts! I thought I'd re-enabled...
  17. Announcing another TRS-80 Software project: APSHAI18!

    It got started last Xmas, so i'm hoping to get some real progress later this year.

    https://raw.githubusercontent.com/voidware/apshai18/master/apshai18.gif

    https://github.com/voidware/apshai18
  18. Announcing another TRS-80 Software project: Scott19!

    Scott Adams game interpeter ported to the TRS-80.

    https://raw.githubusercontent.com/voidware/scott19/master/adv05.gif

    https://github.com/voidware/scott19
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    SVC @KBD not working on 4/4P ?

    tried LS-DOS 631 and TRSDOS 6.2.1, although thinking this isn't a DOS problem, it's something dumb I'm doing;

    So, like a fool, instead of using my own keyboard scanning code, i try my hand at...
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    Model I Upper Case

    Since the standard Model I didn't have lower case, how did text output get converted to upper case?

    If I hit the screen with lower case, it mostly works in emulators because they assume the lower...
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    I've just discovered this update, and it's...

    I've just discovered this update, and it's fantastic!

    I've been using my own hacked version of SDLTRS, but this is nicer. I really like not having to mess about with rom images _and_ especially...
  22. Thanks everyone, I've subscribed to classiccmp...

    Thanks everyone, I've subscribed to classiccmp and sent a message to declegacy. Hopefully i might get some leads.
  23. Thanks Jerry & glitch for your input. I have...

    Thanks Jerry & glitch for your input.

    I have several old Adaptec cards lying around somewhere with cables.

    I didn't know about the TZ30 drive and TK50, there's even a video here,...
  24. Recover Data from microVAX TK50 backups?

    Hi Everyone,

    Sorry if this question has been asked before. I normally hang out in the TRS-80 forum;

    I've acquired some old backup tapes of some games i wrote in the 1980's. These are TK50 tapes...
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    thanks for looking at it. My theory is that the...

    thanks for looking at it. My theory is that the .cas file is ok and should, in theory, load into a working machine in low speed mode, when converted to a wav since it _does_ load into the emulators....
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