(HP-65) Distance, Speed and Time
07-16-2019, 10:11 AM (This post was last modified: 07-16-2019 10:44 AM by Gamo.)
Post: #1
 Gamo Senior Member Posts: 518 Joined: Dec 2016
(HP-65) Distance, Speed and Time
Going through HP-65 Owner's Handbook and noticed some error located on

page 88 about on how to use Flags in program.

The program is use to solve for Distance, Speed and time.

The error is located in [LBL] B under [TF1] should insert [STO] [1] [RTN]

Page 90

Example #3 the answer is not right and should be 4482.8333

Remark: I'm not sure if this is a real error or my mistake.
----------------------------------------------------------------
I do not have a real HP-65
I try to adapt this program to work on HP-11C

Flags on HP-65 skip two steps if false and it is difference on HP-11C

Procedure: FIX 4

[A] Initialize
[B] Distance
[C] Speed
[D] Time
[E] Calculate

Procedure is the same as shown in the HP-65 Owner's Handbook

Here is the program: Distance, Speed, and Time for HP-11C
Code:
 LBL A  // Initialize  SF1 CLx RTN -------- LBL B  // Distance STO 1 F1 RTN   RCL 2   RCL 3 x RTN ------- LBL C  // Speed STO 2 F1 RTN RCL 1 RCL 3 ÷ RTN ------- LBL D  // Time ->H STO 3 F1 RTN RCL 1 RCL 2 ÷ ->H.MS RTN ------ LBL E  // Calculate CF1 RTN

Gamo
07-16-2019, 01:14 PM (This post was last modified: 07-16-2019 02:11 PM by teenix.)
Post: #2
 teenix Senior Member Posts: 629 Joined: May 2016
RE: (HP-65) Distance, Speed and Time
(07-16-2019 10:11 AM)Gamo Wrote:  Going through HP-65 Owner's Handbook and noticed some error located on

page 88 about on how to use Flags in program.

The program is use to solve for Distance, Speed and time.

The error is located in [LBL] B under [TF1] should insert [STO] [1] [RTN]

Page 90

Example #3 the answer is not right and should be 4482.8333

Remark: I'm not sure if this is a real error or my mistake.
----------------------------------------------------------------
I do not have a real HP-65
I try to adapt this program to work on HP-11C

Flags on HP-65 skip two steps if false and it is difference on HP-11C

Procedure: FIX 4

[A] Initialize
[B] Distance
[C] Speed
[D] Time
[E] Calculate

Procedure is the same as shown in the HP-65 Owner's Handbook

Here is the program: Distance, Speed, and Time for HP-11C
Code:
 LBL A  // Initialize  SF1 CLx RTN -------- LBL B  // Distance STO 1 F1 RTN   RCL 2   RCL 3 x RTN ------- LBL C  // Speed STO 2 F1 RTN RCL 1 RCL 3 ÷ RTN ------- LBL D  // Time ->H STO 3 F1 RTN RCL 1 RCL 2 ÷ ->H.MS RTN ------ LBL E  // Calculate CF1 RTN

Gamo

Hi Gamo,

Your Label B code may be wrong, modified follows...

Code:
 LBL B f + STO 1 RTN RCL 2 RCL 3 x RTN

After running the code, here is the program trace from my HP65 emulator for Example 3...

Code:
   1.      LBL   2.      A   3.      f   4.      -   // SF1   5.      f   6.      CHS   // clr STK   7.      DSP   8.      .   9.      4  10.      RTN  21.      LBL  22.      C  23.      f  24.      +   // TF1  25.      STO 2  26.      RTN  31.      LBL  32.      D  33.      f  34.      +   // TF1  35.      GTO  36.      1  43.      LBL  44.      1  45.      f-1  46.      3   // ->D.MS  47.      STO 3  48.      RTN  49.      LBL  50.      E  51.      f-1  52.      -   // SF1  53.      RTN  11.      LBL  12.      B  13.      f  14.      +   // TF1  17.      RCL 2  18.      RCL 3  19.      x  20.      RTN

cheers

Tony
07-17-2019, 01:34 AM
Post: #3
 Gamo Senior Member Posts: 518 Joined: Dec 2016
RE: (HP-65) Distance, Speed and Time
Hello Teenix

Under [LBL] B is missing [STO] 1
Thanks for the correction.

Gamo
07-17-2019, 10:07 AM (This post was last modified: 07-18-2019 12:31 PM by PedroLeiva.)
Post: #4
 PedroLeiva Member Posts: 137 Joined: Jun 2014
RE: (HP-65) Distance, Speed and Time
Here my compilation for HP65 with correct keystroke program and examples, from the Owner´s Handbook
Pedro

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