Rabbit 2000 - 3.3 Instruction Set Outline

24 Rabbit 2000/3000 Microprocessor
Description
Performs a logical AND operation between the byte in A and the byte whose address is:
•inHL,or
• the sum of the data in IX and a displacement value d,or
• the sum of the data in IY and a displacement value d.
The relative bits of each byte are compared (i.e., bit 0 of both bytes are compared, bit 1 of both bytes are com-
pared, etc.). The associated bit in the result byte is set only if both the compared bits are set. The result is
stored in A.
Example
If the byte in A contains the value 1011 1100 and the byte at memory location HL contains the value
1101 0101, then the execution of the instruction:
AND (HL)
would result in the byte in A becoming 1001 0100.
AND (HL)
AND (IX+d)
AND (IY+d)
Opcode Instruction Clocks Operation
A6 AND (HL) 5 (2,1,2) A = A & (HL)
DD A6 d AND (IX+d) 9 (2,2,2,1,2) A = A & (IX+d)
FD A6 d AND (IY+d) 9 (2,2,2,1,2) A = A & (IY+d)
Flags ALTD I/O
S Z L/V C F R SP S D
• • L 0 • • •