I shall update the Model T Memory Map Database <http://www.web8201.net/default.asp?content=modelt_memorymaps/mapview.asp> with this info. ;)
Gary On Sun, Aug 13, 2017 at 3:26 PM, Willard Goosey <[email protected]> wrote: > SNDCOM 6E3A according to romfuncs-600.pdf and John's > m100_unpublished.asm, send reg C out serial port with no soft flow > control. > > Not in Covington map. > > Thanks to Ken's disassembly. This is a jump into the middle of SD232C, > and does a POP before returning. (The matching PUSH is somewhere in > SD232C). So to use this call you have to have a dummy value on the > stack pushed AFTER the return value. ;-) > > do_sndcom > [...] > push b ;dummy value > jmp SNDCOM ;sndcom returns > > I have updated m100.def with a warning about this, but until I get a > second to rebuild all versions and tarballs this is fair warning. > > Willard > -- > Willard Goosey [email protected] > Socorro, New Mexico, USA > I search my heart and find Cimmeria, land of Darkness and the Night. > -- R.E. Howard >
