BMC : The MC-12A (Part II)

The BMC’s ROM is copyrighted RVS, Rasso Von Schlichtegroll !
This is a very good surprise, isn’t it ?

Then we have a very nice software to drive the BMC hardware.
The system brings us these new instructions :
MC-12A Basic instructions and codes

AUTORANGE (E384)INFUNCTION (E399)SCREEN (E381)
BUFFER (E363)LOADBUFFER (E3A6)SELECT (E3A9)
BUFLEN (E350)MCON (E38A)SETCOM (E3AF)
BUFINIT (E3A1)MCOFF (E38B)SETRANGE (E389)
BUFNUM (E351)MULTIMETER (E39B)SETTRIGGER (E395)
BUFREAD (E3A3)OUTCHA (E382)SETSCANTIME (E396)
BUFOPEN (E3A4)OUTSCREEN (E393)SETPREHIST (E397)
BUFWRITE (E3A5)PREHIST (E355)SETFUNCTION (E398)
BUFRANGE (E364)POSITION (E356)SLEEP (E39E)
CHA (E361)PLOT (E39A)TRIGGER (E354)
COM (E3AERANGE (E362)TRANSREC (E39C)
DBUFINIT (E3AB)RELAY (E39D)POSTLOAD (F0DC)
INCHA (E386)ROM# (E357)RVSLOAD (F0FB)
INIT (E390)SWITCH (E380)
INSCAN (E3AA)SCANTIME (E353)
Do you have the user manual ? This would help me a lot 😉

The last two (POSTLOAD, RVSLOAD) have special functions.
RVSLOAD loads a sample program originally stored in the ROM :
(Thanks to my new tools for the CE-158 with syntax highlighter)
RVSLOAD

But if you use POSTLOAD the program is bigger !
Download this program : MC-12A_Forth_Full.TXT

As a big bonus, here is the user manual for the FORTH language :
BMC_MC-12_Forth_001
Download this manual : BMC_MC-12_Forth.pdf

Next time we will discover the MC-12A technical side.
This will be a little boring but necessary.

Leave a Reply