Maxim Integrated MAX31782 - Manual (Page 199)

 MaximIntegrated  20-16
MAX31782 User’s Guide
Revision 0; 8/11
NEG NegateAccumulator
Description: Performs a negation (two’s complement) of the active accumulator and returns the result back to
the active accumulator .
StatusFlags: S, Z
Operation: Acc ← ~Acc + 1
Encoding: 15 0
1000 1010 1001 1010
Example(s): ; Acc = FEEDh, S=1, Z=0
NEG ; Acc = 0113h, S=0, Z=0
ORsrc LogicalOR
Description: Performs a logical-OR between the active accumulator (Acc or A[AP]) and the specified src data .
For the complete list of src specifiers, reference the MOVE instruction . Because the source is lim-
ited to 8 bits, the PFX[n] register is used to supply the high-byte of data for 16 bit sources .
StatusFlags: S, Z
Operation: Acc ← Acc OR src
Encoding: 15 0
f010 1010 ssss ssss
Example(s): ; Acc = 2345h for each example
OR A[3] ; A[3]= 0F0Fh → Acc = 2F4Fh
OR #1133h ; MOVE PFX[0], #11h (smart-prefixing)
; OR #33h → Acc = 3377h
SpecialNotes: The active accumulator (Acc) is not allowed as the src for this operation .