Maxim-integrated MAXQ7667 Uživatelský manuál stáhnout pdf (Strana 339)

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MAXQ7667 User’s Guide

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 accumula-

tor (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

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

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

1000 1010 0100 1010

1000 1010 0101 1010

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