Maxim-integrated DS4830 Optical Microcontroller Manual de usuario Pagina 212

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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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