Intel MCS 51 - Page 98

i~e
M(3@-51 PROGRAMMER~SGUIDE AND INSTRUCTION SET
SETB <bit>
Function:
Example:
SETB C
Bytes:
cycles:
Encoding:
Operation:
SETB bit
Bytes:
cycles:
Encoding:
Operation:
SetBit
SETB sets the indicatedbit to one. SETB can operate on the carry flag or any directly
addressablebit. No other flagsare affected.
Thecarry flagis clesred.OutputPort 1hasbeenwrittenwiththe value34H(OO11O1OOB).The
instructions,
SETE C
SETB PI.O
willleavethe carry tlag set to 1and changethe data output on Port 1to 35H(OO11O1O1B).
1
1
11101 10011 I
SETB
(c) + 1
2
1
1101
100101 EiEEl
SETB
(bit)+ 1
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