Difference between revisions of "PM Opc NOT"
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== NOT = Logical NOT == | == NOT = Logical NOT == | ||
| − | {| border="1" style="text-align:left" | + | {| border="1" style="text-align:left" class="sortable" |
!Hex | !Hex | ||
!Mnemonic | !Mnemonic | ||
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Zero: Set when result is 0 | Zero: Set when result is 0 | ||
| − | Sign: Set when | + | Sign: Set when bit 7 of the result is 1 |
| − | Carry and Overflow remain unchanged | + | Carry and Overflow remain unchanged |
=== Examples === | === Examples === | ||
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NOT A | NOT A | ||
; A = 0xFE | ; A = 0xFE | ||
| − | ; F = (Zero = 0):(Sign=1) | + | ; F = (Zero=0):(Sign=1) |
; B = 0x85 | ; B = 0x85 | ||
NOT B | NOT B | ||
; B = 0x7A | ; B = 0x7A | ||
| − | ; F = (Zero = 0):(Sign=0) | + | ; F = (Zero=0):(Sign=0) |
; [HL] = 0xFF | ; [HL] = 0xFF | ||
NOT [HL] | NOT [HL] | ||
; [HL] = 0x00 | ; [HL] = 0x00 | ||
| − | ; F = (Zero = 1):(Sign=0) | + | ; F = (Zero=1):(Sign=0) |
[[PM_InstructionList|'''« Back to Instruction set''']] | [[PM_InstructionList|'''« Back to Instruction set''']] | ||
Revision as of 03:06, 19 April 2009
NOT = Logical NOT
| Hex | Mnemonic | Cycles |
|---|---|---|
| CE A0 | NOT A | 12 |
| CE A1 | NOT B | 12 |
| CE A2 | NOT [N+#nn] | 20 |
| CE A3 | NOT [HL] | 16 |
Execute
A = Register A B = Register B [N+#nn] = Memory: (I shl 16) or (N shl 8) or #nn [HL] = Memory: (I shl 16) or HL
; NOT Ds ; ; Ds = Source/Destination Ds = Ds XOR $FF
Description
8-Bits Destination is inverted (all bits).
Conditions
Zero: Set when result is 0
Sign: Set when bit 7 of the result is 1
Carry and Overflow remain unchanged
Examples
; A = 0x01 NOT A ; A = 0xFE ; F = (Zero=0):(Sign=1)
; B = 0x85 NOT B ; B = 0x7A ; F = (Zero=0):(Sign=0)
; [HL] = 0xFF NOT [HL] ; [HL] = 0x00 ; F = (Zero=1):(Sign=0)
