============= 13/2/22 =========================== #### HP35s Butterworth Filter designer # # Changed 12/2/22 to make it fit in a single prog label with no # sub routines (ie using up additional labels). Frequency entry # now in MHz. # Results are copied from indirect-only registers 1->9 into Registers R -> Z # to make them accessible from RCL R, RCL S etc. on keyboard # M001 LBL M M002 SF 0 M003 INPUT F M004 1E6 M005 X M006 STO F M007 INPUT N M008 X<0? M009 CF 0 M010 18.026 M011 STO A M012 RCL A M013 IP M014 +/- M015 STO J M016 0 M017 STO(J) M018 ISG A M019 GTO M012 M020 ENG 3 M021 RCL N M022 ABS M023 1000 M024 / M025 1 M026 + M027 STO I M028 STO H M029 RCL I M030 IP M031 2 M032 X M033 1 M034 - M035 180 M036 X M037 RCL N M038 ABS M039 2 M040 X M041 / M042 SIN M043 2 M044 X M045 FS? 0 M046 1/x M047 STO(I) M048 ISG I M049 GTO M029 M050 RCL H M051 STO I M052 RCL I M053 IP M054 2 M055 / M056 FP M057 FS? 0 M058 GTO M101 M059 GTO M105 M060 RTN M061 RCL(I) M062 RCL F M063 2 M064 X M065 PI M066 X M067 / M068 50 M069 X M070 STO(I) M071 RCL I M072 17 M073 + M074 +/- M075 STO J M076 RCL(I) M077 STO(J) M078 ISG I M079 GTO M052 M080 RTN M081 RCL(I) M082 RCL F M083 2 M084 X M085 PI M086 X M087 / M088 50 M089 / M090 STO(I) M091 RCL I M092 17 M093 + M094 +/- M095 STO J M096 RCL(I) M097 STO(J) M098 ISG I M099 GTO M052 M100 RTN M101 x=0? M102 GTO M081 M103 GTO M061 M104 RTN M015 x=0? M106 GTO M061 M107 GTO M081 M108 RTN
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— John Pumford-Green 24/04/23 16:10