AtTiny85 reset pin to GND does not reset correctly

[zukizuki]

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Connecting the pin 1 - (reset pin) to Gnd on the AtTiny should reset the chip. In Wokwi, however, it seems the simulation resets to the beginning of Void Loop, but does not perform a full reset of the chip (does not restart the program from the beginning).

I have built the below setup in real life, and the chip definetely does reset to the beginning of the code, when Pin 1 is connected to Gnd.

To Reproduce Link: https://wokwi.com/projects/383411514584646657

(In this example, I've set button pin 1L to VCC which is needed to get the "faulty reset" described above (resetting to Void loop). If I omit the 1L to VCC in WokWi, there seems to be no reset effect at all, which is also erroneous.

• In the "real world" setup, the 1L to VCC is not needed, simply connecting any of the 2L or 2R to Gnd and 1R to pin 1 on AtTiny85 and pressing the button will perform a full reset.

Expected behavior

It was expected, that shorting pin 1 and Gnd would reset the chip and restart the program completely from the top. This seems to not happen.

The program performs a short sequence of fast blinking at start (void setup), then resumes blinking at slower intervals (void loop). Shorting Reset and Gnd should re-run the program, including the fast-blinking sequence under void setup. This does not happen.

Environment (please complete the following information):

• OS: Win10
• Browser: Chrome
• Version: 119.0.6045.200

Additional context This setup has been replicated in real life, where it does work as expected (without the connection from button 1L to VCC)