Artifacts when switching games with the power on

Related to viewtopic.php?t=10109

It is equipped with a function that prevents the contents of the RAM from being cleared when switching games with the power on.
As a result, the switched game was able to malfunction as intended.
However, I would like to recreate the artifacts that appear while the game is being ejected, but I am unable to do so.

A. If the PPU tries to read the CHR ROM while the game is being ejected, what will be read?
B. What happens to name table mirroring when the game is ejected?
C. If the game is ejected and the CPU tries to read the PRG ROM, what will it read?

Steps to Reproduce
1.Eject Tennis with the power on.: I want to recreate the artifacts but I don't know what to do.

2.With the power on, insert Super Mario Bros.: This is a success. The contents of RAM remain Tennis, and CHR is Super Mario Bros.

3.After resetting, press and hold the A button and start.: This is also successful. Depending on when Tennis is ejected, Super Mario Bros. will start on a non-existent world.

Statistics: Posted by kozoo — Fri Jan 31, 2025 3:35 am — Replies 6 — Views 538

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