DR805x Instructions set details
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3.5.
ANL
Instruction:
Function:
ANL <dest-byte>, <src-byte>
Logical AND for byte operands
Description: ANL performs the bit wise logical AND operation between the variables
indicated and stores the results in the destination variable. No flags are
affected (except P, if <dest-byte> = A). The two operands allow six
addressing mode combinations. When the destination is a accumulator,
the source can use register, direct, register-indirect, or immediate
addressing; when the destination is a direct address, the source can be
the accumulator or immediate data.
Note:
When this instruction is used to modify an output port, the value used
as the original port data will be read from the output data latch, not the
input pins.
3.5.1. ANL A, RN
Operation: (PC) ← (PC) + 1
(A) ← (A) and (Rn)
Bytes:
Cycles:
1
2
Encoding:
0
1
0
1
1
r
r
r
3.5.2. ANL A, DIRECT
Operation: (PC) ← (PC) + 2
(A) ← (A) and (direct)
Bytes:
Cycles:
2
3
Encoding:
0
1
0
1
0
1
0
1
direct address
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