Maxim Integrated MAXQ7667 - Manual (Page 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