
UM008007-0715 Z80 Instruction Description
Z80 CPU
User Manual
249
SET b, r
Operation
rb ← 1
Op Code
SET
Operands
b, r
Description
Bit b in register r (any of registers B, C, D, E, H, L, or A) is set. In the assembled object
code, operands b and r are specified as follows:
Condition Bits Affected
None.
Bit b Register r
0 000 B 000
1 001 C 001
2 010 D 010
3 011 E 011
4 100 H 100
5 101 L 101
6 110 A 111
7 111
M Cycles T States 4 MHz E.T.
2 8 (4, 4) 2.00
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