! Instruction !! Opcode !! Cycles !! S !! Z !! X !! H !! Y !! P !! N !! C !! Effect !! Description
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| bit B,R || 11001011 01bbbrrr || 8 || + || + || + || 1 || + || P || 0 || - || tmp := R AND [1 << B]||rowspan=3|Test Bit
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| bit B,(hl) || 11001011 01bbb110 || 12 || + || + || X || 1 || X || P || 0 || - || tmp := (hl) AND [1 << B], xf := memptr.13, yf := memptr.11