Re:Can a USR command damage a ZX Spectrum?
by floatingatoll on Sunday December 15, 2019 @07:19PM
(#21799909)
In summary: No, but certain port behaviors can be toggled between two states in a little-understood manner.
Relevant quote from the top answer by the author of the video and article below:
> The first video shows what happens if the "randomize of the death" is issued to a real Inves Spectrum+. The video starts with a power cycle to initialize the Inves. If you can, compare this with the result obtained with Spectaculator running the Inves ROM:
> Link to video showing an Inves Spectrum+ executing BORDER 5: RANDOMIZE USR 4665
Relevant quote from the top answer by the author of the video and article below:
> The first video shows what happens if the "randomize of the death" is issued to a real Inves Spectrum+. The video starts with a power cycle to initialize the Inves. If you can, compare this with the result obtained with Spectaculator running the Inves ROM:
> Link to video showing an Inves Spectrum+ executing BORDER 5: RANDOMIZE USR 4665
FLV video: http://www.zxprojects.com/images/stories/videos/rand_usr_466...
> Well, I think that after seeing this, it's the end of the "randomize of the death" hoax.
Details, including the port behavior, are here: http://www.zxprojects.com/inves/