trailing \ missing in tempname (affects PKZIP)

FCB find routines don't store the state correctly (affects DIR, NUSQ, GET)
support for non-extended FCBs is broken (affects LAR)
wrong device attributes reported after redirection (affects GZIP)
REP IN/OUT not implemented
find_next may not close fd
tty modes wrong when running in terminal session
devices not really implemented

keyboard queue not fully implemented (affects VSAFE)
several ioctl request not implemented (affects PKZOOM)
no font file
int 0x28 not implemented
timer chip not implemented
country info needs localization

specific programs:
charc	crashes with a segment overrun
sqwez	gets a fault while exiting
jrc	outputs its banner again on exit, and sometimes complains about aa.aaa