Maxim-integrated DS4830 Optical Microcontroller Instrukcja Użytkownika Pobierz pdf (Strona 212)

DS4830 User’s Guide

212

RL / RLC Rotate Left Accumulator Carry Flag (Ex/In)clusive

Description: Rotates the active accumulator left by a single bit position. The RL instruction circulates the msb

of the accumulator (bit 15) back to the lsb (bit 0) while the RLC instruction includes the Carry (C)

flag in the circular left shift.

Status Flags: C (for RLC only), S, Z (for RLC only)

RL Operation: 15 Active Accumulator (Acc) 0

Acc.[15:1] Acc.[14:0]; Acc.0  Acc.15

Encoding: 15 0

1000

1010

0100

1010

Example(s): ; Acc = A345h, S=1, Z=0

RL ; Acc = 468Bh, S=0, Z=0

RL ; Acc = 8D16h, S=1, Z=0

RLC Operation: 15 Active Accumulator (Acc) 0 Carry Flag

Acc.[15:1] Acc.[14:0]; Acc.0  C; C  Acc.15

Encoding: 15 0

1000

1010

0101

1010

Example(s): ; Acc = A345h, C=1, S=1, Z=0

RLC ; Acc = 468Bh, C=1, S=0, Z=0

RLC ; Acc = 8D17h, C=0, S=1, Z=0

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Maxim-integrated DS4830 Optical Microcontroller Instrukcja Użytkownika Strona 212