Maxim Integrated MAXQ610 - Manual (Page 171)

14-4
MAXQ610 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 PFX[n] register may be used to
supply the high byte of data for 8-bit sources .
Status Flags: S, Z
Operation: Acc ← Acc AND src
Encoding: 15 0
f001 1010 ssss ssss
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. 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 accumu-
lator (Acc .) and returns the result to the Carry .
Status Flags: C
Operation: C ← C AND Acc.
Encoding: 15 0
1001 1010 bbbb 1010
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