Difference between revisions of "PM Opc SWAP"
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(SWAP Instruction) |
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=== Execute === | === Execute === | ||
| − | A = | + | A = (8-Bits) Register A |
| − | [HL] = | + | [HL] = (8-Bits) Memory: (I shl 16) or HL |
; SWAP Ds | ; SWAP Ds | ||
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=== Description === | === Description === | ||
| − | Swap low and high nibbles of | + | Swap low and high nibbles of a given byte. |
=== Conditions === | === Conditions === | ||
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; A = 0x3A | ; A = 0x3A | ||
| − | SWAP A | + | '''SWAP A''' |
; A = 0xA3 | ; A = 0xA3 | ||
; [HL] = 0xF6 | ; [HL] = 0xF6 | ||
| − | SWAP [HL] | + | '''SWAP [HL]''' |
; [HL] = 0x6F | ; [HL] = 0x6F | ||
[[PM_InstructionList|'''« Back to Instruction set''']] | [[PM_InstructionList|'''« Back to Instruction set''']] | ||
Latest revision as of 00:32, 21 April 2009
SWAP = Swap Low and High Nibbles
| Hex | Mnemonic | Cycles |
|---|---|---|
| F6 | SWAP A | 8 |
| F7 | SWAP [HL] | 12 |
Execute
A = (8-Bits) Register A [HL] = (8-Bits) Memory: (I shl 16) or HL
; SWAP Ds ; ; Ds = Source/Destination Ds = (Ds SHL 4) OR (Ds SHR 4)
Description
Swap low and high nibbles of a given byte.
Conditions
None
Examples
; A = 0x3A SWAP A ; A = 0xA3
; [HL] = 0xF6 SWAP [HL] ; [HL] = 0x6F
