8X300/305 Assembly Language Programming

[16BitFan]

I would like to hear from anyone who has coded in assembly language for the Signetics 8X300 family. What would be of most interest would be what their programs were for.

 

[shirsch]

The 8X300 was used in early Tandy external hard drives. The WD1010 was not yet available so Western Digital wrote 8x300 code to emulate it.

 

[stepleton]

As long as we're listing what other people used 8X300s for:

TAC/DCA used them on their IRMA boards to support using a PC as an IBM 3270 terminal.

Tektronix, who seem like they never saw a processor architecture that they didn't want to use in something, used an 8X300 on the Option 30 motion graphics board for the 4054 and 4054A computers. (Think programmable sprites for a vector display system.)

 

[jcathey]

My S100 Morrow HD-DMA HDC board uses an 8X300 for the CRC calculation. I never wrote any code for it, of course.

 

[maria8x300]

I wrote an HDLC (X25 level 2) handler for the 8X300 back in the days. Was used for communication between ESA units especially for ground data distribution. Module was based on a CAMAC module, a then much used standard for industrial computing. Also wrote a demonstrator for a disk elevator to speed up disk access for a government job. What is your interest in the matter?

 

[16BitFan]

My interest is basically that I have the end goal of reproducing a Signetics 8X300 Evaluation Kit and need the firmware from an original if I can find anyone that has it and is willing to share it.

 

[maria8x300]

My interest is basically that I have the end goal of reproducing a Signetics 8X300 Evaluation Kit and need the firmware from an original if I can find anyone that has it and is willing to share it.

Hi<
Yes, I know that device, I might have a binary somehwere on an old disk, but I first need to fix the drive taht can read it: 5MB DEC PDP discpack. Don't put your hope up too high, but I'll have a look.