RRD |
Rotate right decimal. | |||||||||
Function: | ||||||||||
Format: |
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byte 1: ED |
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byte 2: 67 |
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Description: | The 4 high order bits of the memory location addressed by the contents of the HL register pair are moved to the low order 4 bits of that location. The 4 low order bits are moved to the 4 low order bits of the accumulator. The low order bits of the accumulator are moved to the 4 high order bit positions of the memory location originally specified. All the above operations occur simultaneously. |
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Data Flow: | ||||||||||
Timing: | 5 M cycles; 18 T states: 9 usec @ 2 MHz |
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Addressing Mode: | indirect |
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Flags: | ||||||||||
Example: | RRD |
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OBJECT CODE |
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