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(...) 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:
https://dl.dropboxusercontent.com/u/37819653/BANNISTER/BAUD_RATE_GENERATOR.jpg

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...

https://dl.dropboxusercontent.com/u/37819653/BANNISTER/2016_07_02_Rainbow_CPP.txt

Thank you!

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