============================== 2020-04-14 - tested IDE 1.8.12 factor 5+ faster ----------------------------- example fastShiftIn: 0.2.0 8 bits HIGH Performance - time in us : read() FastShiftIn1: 20.43 FastShiftIn2: 39.72 Delta: 19.29 Performance - time in us : readLSBFIRST() FastShiftIn1: 19.80 FastShiftIn2: 38.84 Delta: 19.04 Performance - time in us : readMSBFIRST() FastShiftIn1: 19.80 FastShiftIn2: 38.84 Delta: 19.04 Performance - time in us : reference shiftIn() Standard shiftIn1: 108.61 Standard shiftIn2: 216.43 Delta: 107.82 done... ============================== tested IDE 1.8.12 2020-04-14 example fastShiftIn: 0.1.5 8 bits HIGH Performance - time in us FastShiftIn1: 25.15 FastShiftIn2: 49.15 Delta: 24.00 Standard shiftIn1: 108.51 Standard shiftIn2: 216.43 Delta: 107.92 done... ============================== tested IDE 1.8.1 20-08-2017 example fastShiftIn: 0.1.4 8 bits HIGH Performance - time in us FastShiftIn1: 25.64 FastShiftIn2: 50.16 Delta: 24.52 Standard shiftIn1: 110.53 Standard shiftIn2: 220.48 Delta: 109.95 done... ============================== 2017-4-27 example fastShiftIn: 0.1.3 8 bits HIGH Performance - time in us FastShiftIn1: 31.31 FastShiftIn2: 61.48 Delta: 30.18 Standard shiftIn1: 110.54 Standard shiftIn2: 220.48 Delta: 109.94 done... ============================== example fastShiftIn: 0.1.01 8 bits HIGH Performance - time in us FastShiftIn1: 44.83 FastShiftIn2: 88.52 Delta: 43.70 Standard shiftIn1: 110.54 Standard shiftIn2: 220.49 Delta: 109.95 done...