Viewing Issue Advanced Details
ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
07021 DIP/Input Major Always Jun 18, 2018, 17:39 Sep 19, 2018, 16:29
Tester nippur72 View Status Public Platform MAME (Official Binary)
Assigned To hap Resolution Fixed OS Windows 10 (64-bit)
Status [?] Resolved Driver vtech2.cpp
Version 0.198 Fixed in Version 0.202 Build 64-bit
Fixed in Git Commit Github Pull Request #
Summary MESS-specific 07021: laser500: Reset key is not mapped
Description Laser 500 has a RESET key that is located leftmost the SPACE bar.

Such key is not mapped in the emulator.

The RESET key acts like a BREAK/CTRL+C for basic programs, e.g. when you press it the READY prompt appears.
Steps To Reproduce
Additional Information
Github Commit
Regression Version
Affected Sets / Systems laser500
Attached Files
There are no relationship linked to this issue.
User avatar
Sep 9, 2018, 16:33
I investigated it on a real machine and the RESET key is connected to the reset pin of the Z80 cpu.

So to implement it in MAME, when pressing they key the CPU should be reset. Just that.

The ROM that comes with the Laser 350/500/700 is able to handle the reset and take the user to a "Ready" prompt without loosing the program in RAM.