In this format K4M101 the K refers to a 4 bit nybble therefore the instruction K4M101 is Block moving 16 bits (K4)-(M101 through to M116)
BMOV K4M110 D234 K7
Copies de values from Source M110 to M221 to Destination D234 to D240
Thanks parky, yes I think that's what they're doing...if the result of the AND is non-zero, we've got a new alarm.
I edited my previous post, because I still don't understand what K7 means.
K7 is 7, just number
Ah, the penny's dropped..."7 lots of 16 bits".It means to copy the bits to 7 registers, if for example it was block move D0 to D100 K7 then it would move D0 to D6 (7 registers) to D100 to D106 (7 Registers)
so
D0 > D100
D1 > D101
D2 > D102
D3 > D103
D4 > D104
D5 > D105
D6 > D106
By using K4 M100 D100 K7 just means it moves 7x16 bits from M100 to M112 to registers D100 to D107.