Another common issue that usually manifests itself with "access denied" errors is an antivirus locking the drive.

Hi Andrew,

what was win2_ mapped to? (QXL.WIN, Windows folder, etc.)?

that I create text in my PC as a TXT file and open it in QL? So I will save the txt file as _bas? You can do that. Map the microdrive slot to a Windows folder so the files show both on the PC and in Q-emuLator. Use a Windows editor that can handle non-Windows end-of-line characters. (For example No...

is the mirodrice code in QDOS, Minerva and SMSQ/E dependent on CPU instruction timings? I seem to remember it is not. But wanted to ask here, in case someone is more familiar with the microdrives. Yes, some of the code needs the right timing to be compatible with QDOS. The FORMAT command is probabl...

OK - here are my results. I used the QL + Tetroid's GoldCard and QEmulator set to QL speed and then to GoldCard speed Gold Card speed in Q-emuLator is approximate and was based on a couple of known benchmark results. I should still have a benchmark I wrote years ago to collect cycle-accurate instru...

What is the price?

(Weird) question: would QL-SD work on an unexpanded QL with a JS rather than Minerva OS on the QL-SD EPROM?

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New chapter for SBASIC/SuperBASIC Reference Manual If a document is written about SuperBASIC performance, keep in mind that there are separate SuperBASIC runtimes and what is true for one may or may not be true for another (I assume that's why you tested both on QPC and QL2K): ⋅ Sinclair ...

$18003 WRITE IPC Write: Controls the IPC communication pin. * There are several unknowns regarding this location. While only 1 bit is significant and used to drive the COMDATA line, the masks used by the OS suggest that 4 bits are used (bits 0..3). Implemented bits: 0 = should be written as 0 1 = d...