Brill, thanks.jgharston wrote:Here: this one which appears to be on page 18, not page 19. I'm not sure how I managed to type 19 instead of 18.
I've just tried this and it works on the 6502 Co Pro. I also extended the test, and was able to successfully transfer in both directions.
I also wrote a test using OSWORD &FA on the x86 Co Pro.
I first tested by test program with type 0/1 transfers, and was able to copy a block of memory from the parasite to the host and then back again.
So, I then tried using type 2/3 transfers, and these did not work. I also tried type 0/3 and type 1/2, and neither of these combinations worked.
So it looks like two-byte mode is broken in the x86 Co Pro in both directions, but is possibly working in the 6502 Co Pro. Is it possible this is an OSWORD &FA issue?
I really need some more data points on this one....Who was it that discovered the original Econet issue at Halifax?