Hi Migman.
Nice, i would date it at around 1955 to 1962 (I am in that date range as well lol.)
I also played around with a modified keyboard in early dos based flight sims. Also using a 555 timer to pulse the Function keys in msfs for throttle increase / decrease etc.
What interrupts were you using ? the physical hardware ones for the 80286/386 etc ? - that would be fun (not
) as even getting your comm ports (comm 1 on IRQ3 and comms 2 on IRQ 2, SB card on IRQ 5 and parallel on IRQ 7 etc was done by jumpers in most cases -- then you had the irq 'extender' (was it irq 9 ?) - eek !. what a nightmare/. I presume you used IRQ 1 for the keyboard interrupts ?
I never went down to that level on the 80x86 units.. On the Z80 with machine code level, which had only one hardware interrupt as far as I can remember, I has an ISR that checked for whatever was going on.
I played with machine code also for the 6502 but the paging was a bit of a nightmare. I wrote my first commercial program for a Sharp MZ700 Z80 based unit in 1985.
- I actually found the original advert on line a few weeks back. It was an RTTY program for Radio Hams.
- teletype over shortwave radio. Prior to this we used HUGE Creed 7B and 444 units at home.. a google search will show you the size of these things ! - I am a G4' from the early 80's - It was all hand written at the machine code level and then entered directly - I didn't have - and there wasn't - a compiler.......
I found a copy of 'Ham Radio Today' from 1985 with the original advert for the program (G4XRZ RTTY) including spelling mistakes
oops - but the program worked and made a lot of dosh...
https://worldradiohistory.com/Archive-D ... 985-02.pdf (search G4XRZ for the classified adverts) - the spelling mistakes are embarrassing haha (such as board instead of baud !) - but I can claim not my fault as you had to telephone the advert in to the magazine and the girls taking the advert were not too well versed in the actual terminology - as I found out.....
It was amazing to find such a magazine on line and looking back at the articles and adverts -- wow ! different universe.... anyway, I digress - It partially paid for a house move. I also wrote a couple of progs for the BBC Model B later and gained a nice nest egg.. in them days, it was free range.
I dont have a vlog etc, t is always a work in progress. I can send you images of lots of parts an pieces and many bits awaiting parts (like the yoke linear slides which I have but are awaiting polymer bushes
as the linear bearings are noisy as feck. nothing wrong with them, it is normal! the polymer units will quieten it down)
The actual yoke is from the US. I have a genuine Cessna 310 throttle quadrant and trim assembly. All the instrument parts (electronics and displays I have). I also have a cnc machine and a 3d printer but at the moment both of them are boxed as we only recently moved to a completely renovated 150 year old house in Portugal - well, it is nearly a year ago, but as Covid stopped play I am still awaiting the interior doors ! as they are custom made and the factory shut down in march - should be here soon. then I can fit the rest of my workbenches in the toy room. At the moment I use a triple 27" monitor setup and although I have the extra display(s) for AM I dont bother most of the time as I have enough hours in GA to fly the 172 by 'ear' and feel. I also fly ORBX in XP in the UK North and I know the area so well that I don't tend to use nav
I use a custom airfile for the 172 in XP (my own) that I love flying - the standard one is hopelessly wrong in many ways.
yes, it is amazing how things have advanced ...