Maxim-integrated DS4830A Optical Microcontroller Instrukcja Użytkownika Pobierz pdf (Strona 214)

DS4830A User’s Guide

214

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.<b>, 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.<b>  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

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Maxim-integrated DS4830A Optical Microcontroller Instrukcja Użytkownika Strona 214