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254 Rabbit 3000 Microprocessor
CP* n 4 f * * V * A - n
CP* r 2 f * * V * A - r
OR (HL) 5 fr s * * L 0 A = A | (HL)
OR (IX+d) 9 fr s * * L 0 A = A | (IX+d)
OR (IY+d) 9 fr s * * L 0 A = A | (IY+d)
OR n 4 fr * * L 0 A = A | n
OR r 2 fr * * L 0 A = A | r
SBC* (IX+d) 9 fr s * * V * A = A - (IX+d) - CY
SBC* (IY+d) 9 fr s * * V * A = A - (IY+d) - CY
SBC* A,(HL) 5 fr s * * V * A = A - (HL) - CY
SBC* A,n 4 fr * * V * A = A-n-CY (cout if (r-CY)>A)
SBC* A,r 2 fr * * V * A = A-r-CY (cout if (r-CY)>A)
SUB (HL) 5 fr s * * V * A = A - (HL)
SUB (IX+d) 9 fr s * * V * A = A - (IX+d)
SUB (IY+d) 9 fr s * * V * A = A - (IY+d)
SUB n 4 fr * * V * A = A - n
SUB r 2 fr * * V * A = A - r
XOR (HL) 5 fr s * * L 0 A = [A & ~(HL)] | [~A & (HL)]
XOR (IX+d) 9 fr s * * L 0 A = [A & ~(IX+d)] | [~A & (IX+d)]
XOR (IY+d) 9 fr s * * L 0 A = [A & ~(IY+d)] | [~A & (IY+d)]
XOR n 4 fr * * L 0 A = [A & ~n] | [~A & n]
XOR r 2 fr * * L 0 A = [A & ~r] | [~A & r]
* SBC and CP instruction output inverted carry. C is set if A<B if the oper-
ation or virtual operation is (A-B). Carry is cleared if A>=B. SUB outputs
carry in opposite sense from SBC and CP.
19.11 8-bit Bit Set, Reset and Test
Instruction clk A I S Z V C Operation
BIT b,(HL) 7 f s - * - - (HL) & bit
BIT b,(IX+d)) 10 f s - * - - (IX+d) & bit
BIT b,(IY+d)) 10 f s - * - - (IY+d) & bit
BIT b,r 4 f - * - - r & bit
RES b,(HL) 10 d - - - - (HL) = (HL) & ~bit
RES b,(IX+d) 13 d - - - - (IX+d) = (IX+d) & ~bit
RES b,(IY+d) 13 d - - - - (IY+d) = (IY+d) & ~bit
RES b,r 4 r - - - - r = r & ~bit
SET b,(HL) 10 b - - - - (HL) = (HL) | bit
SET b,(IX+d) 13 b - - - - (IX+d) = (IX+d) | bit
SET b,(IY+d) 13 b - - - - (IY+d) = (IY+d) | bit
SET b,r 4 r - - - - r = r | bit
19.12 8-bit Increment and Decrement
Instruction clk A I S Z V C Operation
DEC (HL) 8 f b * * V - (HL) = (HL) - 1
DEC (IX+d) 12 f b * * V - (IX+d) = (IX+d) -1
DEC (IY+d) 12 f b * * V - (IY+d) = (IY+d) -1
DEC r 2 fr * * V - r = r - 1
INC (HL) 8 f b * * V - (HL) = (HL) + 1
INC (IX+d) 12 f b * * V - (IX+d) = (IX+d) + 1
INC (IY+d) 12 f b * * V - (IY+d) = (IY+d) + 1
INC r 2 fr * * V - r = r + 1