Saved from the Shoutbox.

(...) the 7201 is externally clocked like the 8251, and you aren't doing that.

That's why there's the separate 8088 port to set the baud rate, because there's a completely separate baud rate generator 

Schematics of baud rate generator:

Standard smc/com5016T dual baud rate generator, see vt100.c and vk100.c for examples where it is used (says LN)

@shattered: here ist the link to the latest source. The m1_r (IRQ acknowledge) fix Cracyc mentioned is missing...

Thank you!

Last edited by Bavarese; 07/03/16 08:50 PM.