Instruction Manual

__________________________________________________________________________________________________________ 19-6
MAXQ7667 User’s Guide
AND src Logical AND
Description:
Performs a logical-AND between the active accumulator (Acc) and the specified src data. For the complete list of
src specifiers, reference the MOVE instruction. The MAXQ7667 may use the PFX[n] register to supply the high byte
of data for 8-bit sources.
Status Flags: S, Z
Operation: Acc ← Acc AND src
Encoding: 15 0
Example(s): ; Acc = 2345h for each example
AND A[3] ; A[3]=0F0Fh
;
→ Acc = 0305h, S=0, Z=0
AND #33h ;
→ Acc = 0001h
AND #2233h ; generates object code below
; MOVE PFX[0], #22h (smart-prefixing)
; AND #33h
;
→ Acc = 2201h
MOVE PFX[0], #0Fh
AND M0[8] ; M0[8]=0Fh (assume M0[8] is an 8-bit register)
;
→ Acc = 0305h
Special Notes: The active accumulator (Acc) is not allowed as the src for this operation.
AND Acc.<b> Logical AND Carry Flag with Accumulator Bit
Description: Performs a logical-AND between the Carry (C) status flag and a specified bit of the active accumulator (Acc.<b>)
and returns the result to the Carry.
Status Flags: C
Operation: C ← C AND Acc. <b>
Encoding: 15 0
Example(s): ; Acc = 2345h, C=1 at start
AND Acc.0 ; Acc.0=1
→ C=1
AND Acc.1 ; Acc.1=0
→ C=0
AND C, Acc.8 ; Acc.8=1
→ C=0
f001
1010
ssss
ssss
1001
1010
bbbb
1010