Maxim Integrated MAX31782 User Manual

Page 206

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MaximIntegrated  20-23

MAX31782 User’s Guide

Revision 0; 8/11

RL/RLC

RotateLeftAccumulator

CarryFlag(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 .

StatusFlags:

C (for RLC only), S, Z (for RLC only)

RLOperation:

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

RLCOperation: 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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