Maxim Integrated DS4830 Optical Microcontroller - Manual (Page 203)

DS4830 User’s Guide
203
Example(s): MOVE A[0], A[3] ; A[0]  A[3]
MOVE DP[0], #110h ; DP[0]  #0110h (PFX[0] register used)
; MOVE PFX[0], #01h (smart-prefixing)
; MOVE DP[0], #10h
MOVE DP[0], #80h ; DP[0]  #0080h (PFX[0] register not needed)
Special Notes:
Proper loading of the PFX[n] registers, when for the purpose of supplying 16-bit immediate data
or accessing 2-cycle destinations, is handled automatically by the assembler and is therefore an
optional step for the user when writing assembly source code. Examples of the automatic PFX[n]
code insertion by the assembler are demonstrated below.
Initial Assembly Code Assembler Output
MOVE DP[0], #0100h MOVE PFX[0], #01h
MOVE DP[0], #00h
MOVE A[15], A[7]
MOVE PFX[2], any src
MOVE A[7], A[7]
MOVE A[8], #3040h MOVE PFX[2], #30h
MOVE A[0], #40h
MOVE Acc., C Move Carry Flag to Accumulator bit
Description:
Replaces the specified bit of the active accumulator with the Carry bit.
Status Flags:
S, Z
Operation:
Acc.  C
Encoding:
15 0
1111 1010 bbbb 1010
Example(s):
; Acc = 8000h, S=1, Z=0, C=0
MOVE Acc.15, C ; Acc = 0000h, S=0, Z=1