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Rasmus-M / js99er-angular

TI-99/4A emulator written in TypeScript using Angular
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SAVE CS1 only works with small programs #62

Closed seanwo closed 1 year ago

seanwo commented 1 year ago

For some reason if the program in memory is above a critical size, get a I/O ERROR 03 when trying to save it to CS1.

Steps:

  1. Load a .TIDisk into js99er (used you website)
  2. OLD DSK1.BJ or MERGE DSK1.BLACKJACK
  3. LIST 100 (to ensure it loaded properly)
  4. SAVE CS1

Result:

If the program loaded into memory is small enough or you just add a few lines by hand, the save to .wav goes as planned. I am not sure how big is too big.

Here is a .TIDisk I am using with some homebrew programs: https://github.com/seanwo/ti994a/blob/main/github.TIDisk (it contains 2 program files BJ and BS along with the source files that can be merged BLACKJACK and BATTLESHIP) if you want something to reproduce with.

Rasmus-M commented 1 year ago

This is not a problem with the emulator but a limitation of the TI-99/4A. You can only save programs up to approximately 12K to tape.

seanwo commented 1 year ago

Got it. I just looked that up here: https://www.digitpress.com/library/manuals/ti994a/ti%20program%20recorder.pdf. Indeed it says the limit is 12K. Thanks!