My apologies, I had posted this in the wrong place. Maybe this will fare better.

I am implementing FujiNet for IBM PC, and the first version will be using RS-232, but I am attempting to implement the programming interface as a BIOS trap, so that the ISA version can use the same programming model.

FUJIBIOS Experiment 2 (X2) has been posted here:
https://github.com/FujiNetWIFI/fujinet-rs232/tree/main/X2

it can be built with Turbo C 2.0, with

```
tcc -v fujibios fujicom com
```

What works:

* AH = 00 - Send command AL with parameters in CX, to device DL, no payload
* AH = 80 - Send command AL with len in CX, to device DL, Payload from ES:BX

What doesn't:

* AH = 40 - Read command AL with len in CX, to device DL, Payload to ES:BX

Basically, _fujicom_send_command(), fujicom_command(), and fujicom_command_write() work.

fujicom_command_read() does not. using com_getc_sync not working.

Basically, any receive isn't hanging, but am not getting any result.

-Thom