The Museum of HP Calculators

Calendar Functions for the HP-41C/CV/CX

This program is supplied without representation or warranty of any kind. Tony Duell, Hewlett Packard and The Museum of HP Calculators therefore assume no responsibility and shall have no liability, consequential or otherwise, of any kind arising from the use of this program material or any part thereof.

Documentation Information (CD or source code)
How to get this Program to your Calculator (via HP-IL, disk, wand, and fingers)
Download Binary (.raw) program for disk or PC HP-IL Card download
Download Hexadecimal (.dat) program for Serial Port download

Program Listing

LINE  KEYS
 01 LBL "CLNDRFN"
 02 LBL A
 03 RCL 04
 04 RCL 01
 05 -
 06 3
 07 GTO 20
 08 LBL B
 09 RCL 03
 10 RCL 01
 11 +
 12 4
 13 LBL 20
 14 STO 02
 15 RDN
 16 365.25
 17 STO 05
 18 30.6001
 19 STO 06
 20 RDN
 21 RDN
 22 FS?C 22
 23 GTO 21
 24 STO IND 02
 25 122.1
 26 -
 27 RCL 05
 28 /
 29 INT
 30 STO 09
 31 RCL 05
 32 *
 33 INT
 34 RCL IND 02
 35 -
 36 CHS
 37 STO 00
 38 RCL 06
 39 /
 40 INT
 41 STO 07
 42 RCL 00
 43 X<>Y
 44 RCL 06
 45 *
 46 INT
 47 -
 48 STO 08
 49 RCL 07
 50 1
 51 RCL 08
 52 %
 53 -
 54 -
 55 RCL 07
 56 14
 57 /
 58 XEQ 22
 59 RCL 09
 60 1 E6
 61 /
 62 +
 63 GTO 25
 64 LBL 21
 65 RDN
 66 FC? 06
 67 STO IND 02
 68 ENTER
 69 INT
 70 STO 07
 71 -
 72 1 E2
 73 *
 74 ENTER
 75 INT
 76 STO 08
 77 -
 78 1 E4
 79 *
 80 STO 09
 81 RCL 07
 82 1
 83 +
 84 ENTER
 85 1/X
 86 .7
 87 +
 88 CHS
 89 XEQ 22
 90 RCL 06
 91 *
 92 INT
 93 RCL 09
 94 RCL 05
 95 *
 96 INT
 97 +
 98 RCL 08
 99 +
100 X<> IND 02
101 FS?C 06
102 RTN
103 LBL 25
104 ENTER
105 XEQ IND X
106 FRC
107 1 E2
108 *
109 CF 28
110 FIX 04
111 ARCL X
112 RDN
113 AVIEW
114 SF 28
115 RTN
116 LBL 22
117 INT
118 ST+ 09
119 12
120 *
121 -
122 RTN
123 LBL C
124 CF 29
125 FIX 00
126 STO 01
127 FS?C 22
128 RTN
129 RCL 04
130 RCL 03
131 -
132 STO 01
133 RTN
134 LBL E
135 SF 06
136 SF 22
137 RCL 05
138 5
139 XEQ 20
140 RCL IND 02
141 7
142 MOD
143 13
144 +
145 XEQ IND X
146 AVIEW
147 RTN
148 LBL 13
149 "FRIDAY"
150 RTN
151 LBL 14
152 "SATURDAY"
153 RTN
154 LBL 15
155 "SUNDAY"
156 RTN
157 LBL 16
158 "MONDAY"
159 RTN
160 LBL 17
161 "TUESDAY"
162 RTN
163 LBL 18
164 "WEDNESDAY"
165 RTN
166 LBL 19
167 "THURSDAY"
168 RTN
169 LBL 01
170 "JAN "
171 RTN
172 LBL 02
173 "FEB "
174 RTN
175 LBL 03
176 "MAR "
177 RTN
178 LBL 04
179 "APR "
180 RTN
181 LBL 05
182 "MAY "
183 RTN
184 LBL 06
185 "JUN "
186 RTN
187 LBL 07
188 "JUL "
189 RTN
190 LBL 08
191 "AUG "
192 RTN
193 LBL 09
194 "SEP "
195 RTN
196 LBL 10
197 "OCT "
198 RTN
199 LBL 11
200 "NOV "
201 RTN
202 LBL 12
203 "DEC "
204 END

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