RL02-USB Controller Status/Problem

On Wed, Apr 8, 2015 at 12:13 AM, Christopher Parish <christopher.parish at parishcomputers.com> wrote: Well, you *can* pass *anything* over USB; it depends entirely on how the system is architected... I respectfully disagree. To my way of thinking, this is indeed a SIMH issue, since it was never architected to handle real hardware; it was only ever conceived to handle virtual devices, and the design decisions that were made for that goal were appropriate. In the SIMH worldview, bad blocks should simply never occur, so the guest OS all never be exposed to them, and device drivers can be written without taking them into account beyond the simple 'help, the world's gone screwy, I quit' if a disk request has an unexpected outcome. Now you're moving the goalposts. I see no reason not to fork SIMH and simply patch the RL device driver to do exactly what the hardware does and pass errors through to the guest OS for it to deal with. Mike http://www.corestore.org 'No greater love hath a man than he lay down his life for his brother. Not for millions, not for glory, not for fame. For one person, in the dark, where no one will ever know or see.'