Apple II

Thanks to old_hitech, I now have enough keyswitches to put my keyboard back into full service. After desoldering and testing all keyswitches on my last outing, I had put all the iffy or bad ones on the bottom row for easy removal. I now have the entire bottom row done, and they work.. but now I have lost my 1, 2, 3, 4 7, 8 ans - keys. Looking at the traces thoae keys all share one trace on the keybside of the pcb. I thoughr maybe one of the replcement keyswitches were bad, and found my replacement left shift switch was shorting a bit.

I am using ADTPro with an Apple 2e and connecting to a MacBook that is running Windows inside VirtualBox.

I am able to bootstrap just fine. Additionally, when I "Send" the RAM disk, it goes nice and fast and copies everything.

Does any one know or have a fiew good drive door/clamps for apple DiskII drives or a clone with the black thumb door like the disk II. Have 3 good working drives but the door clamp is broken.

I found a file containing the equation for the Apple IIe HAL.

it is in a language I dont understand

do you know if the same file exist in vhdl ?
or is there any information on how to read the file (this is a small extract)

Pin #
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
14M 7M CREF H0 VID7 SEGB GR' CASEN' 80COL' GND ENTMG' LDPS' VID7M PHASE_1 PHASE_0 Q3' CAS' AX RAS' VCC

/RAS':=Q3'
+7M*/RAS'*/PHASE_0
+/7M*/AX*PHASE_0
+7M*CREF*AX*H0*PHASE_0
+/7M*/CREF*AX*H0*PHASE_0

apparently it's just simple equation using just not, and, or...

there is this description

DESCRIPTION:
'=not (inverted)
+=or (# in CUPL)
*=and (& in CUPL)
/=low (! in CUPL)

but it's not so clear, for example the signal on pin 19 is ras' but the the part of the equation is /ras

apparently it is easy to deduce the and / or but with the /signal signal' signal
the not seems comfusing

any idea ?