Maxim-integrated MAX31782 Manual do Utilizador descarregar pdf (Página 207)

Maxim Integrated 20-24

MAX31782 User’s Guide

Revision 0; 8/11

RR/RRC Rotate Right Accumulator

Carry Flag (Ex/In)clusive

Description: Rotates the active accumulator right by a single bit position. The RR instruction circulates the lsb of

the accumula- tor (bit 0) back to the msb (bit 15) while the RRC instruction includes the Carry (C)

flag in the circular right shift.

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

RR Operation: 15 Active Accumulator (Acc) 0

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

Encoding: 15 0

1000 1010

1100 1010

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

RR ; Acc = D1A2h, S=1, Z=0

RR ; Acc = 68D1h, S=0, Z=0

RRC Operation: 15 Active Acc (Acc) 0 Carry Flag

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

Encoding: 15 0

1000 1010

1101 1010

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

RRC ; Acc = D1A2h, C=1, S=1, Z=0

RRC ; Acc = E8D1h, C=0, S=1, Z=0

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Maxim-integrated MAX31782 Manual do Utilizador Página 207