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HT9480 Datasheet(PDF) 51 Page - Holtek Semiconductor Inc |
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HT9480 Datasheet(HTML) 51 Page - Holtek Semiconductor Inc |
51 / 57 page RRA [m] Rotate right - place result in accumulator Description Data in the specified data memory is rotated right one bit with bit 0 rotated into bit 7, leaving the rotated result in the accumulator. The contents of the data memory remain unchanged. Operation ACC.(i) ← [m].(i+1); [m].i:bit i of the data memory (i=0-6) ACC.7 ← [m].0 Affected flag(s) TC2 TC1 TO PD OV Z AC C – – –– –– –– RRC [m] Rotate data memory right through carry Description The contents of the specified data memory and the carry flag are together rotated right one bit. Bit 0 replaces the carry bit; the original carry flag is rotated into the bit 7 position. Operation [m].i ← [m].(i+1); [m].i:bit i of the data memory (i=0-6) [m].7 ← C C ← [m].0 Affected flag(s) TC2 TC1 TO PD OV Z AC C – – –– –– – √ RRCA [m] Rotate right through carry - place result in accumulator Description Data of the specified data memory and the carry flag are together rotated right one bit. Bit 0 replaces the carry bit and the original carry flag is rotated into the bit 7 position. The rotated result is stored in the accumulator. The contents of the data memory remain unchanged. Operation ACC.i ← [m].(i+1); [m].i:bit i of the data memory (i=0-6) ACC.7 ← C C ← [m].0 Affected flag(s) TC2 TC1 TO PD OV Z AC C – – –– –– – √ HT9480 51 23th Feb ’98 |
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