HP Forum Archive 14

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HP-16C Programing Message #1 Posted by Trent Moseley on 5 Apr 2005, 2:54 p.m. In programing the 16-C in DECIMAL mode, is there any work-around to obtain either the INT or the FRAC function? tm

Re: HP-16C Programing Message #2 Posted by Vieira, Luiz C. (Brazil) on 5 Apr 2005, 5:18 p.m., in response to message #1 by Trent Moseley Hello, Trent; back to some years ago, I remembered Nenad Vulic gave us a brilliant solution for this matter. Follow this thread and you'll see a very good approach from him. Best regards. Luiz (Brazil)

Re: HP-16C Programing Message #3 Posted by Trent Moseley on 5 Apr 2005, 7:45 p.m., in response to message #2 by Vieira, Luiz C. (Brazil) Luiz, Vulic's program works! Thank you so much. tm

A minor improvement Message #4 Posted by Cameron on 6 Apr 2005, 2:03 p.m., in response to message #3 by Trent Moseley If you can afford the program storage and the convenience of sign preservation is helpful, you could add a few steps to Vulic's program: LBL A X<0? SF 0 ABS ENTER ENTER EEX [9] [+] LSTx [-] x>y? [1] [0] ENTER [1] [0] [/] [-] F? 0 CHS CF 0 RTN Unfortunately this solution won't work on my simulator because I'm using the IEEE FPU. The design of my BCD FP simulator is well advanced so this limitation will go away in the future. Cameron

Re: HP-16C Programing Message #5 Posted by Cameron on 6 Apr 2005, 2:09 p.m., in response to message #2 by Vieira, Luiz C. (Brazil) Thanks for the link, Luiz. I'd missed that thread the first time 'round. Cameron

Took me a while to find ;-)... Message #6 Posted by Vieira, Luiz C. (Brazil) on 6 Apr 2005, 4:24 p.m., in response to message #5 by Cameron You're welcome, Cameron. Cheers. Luiz (Brazil)

Re: HP-16C Programing Message #7 Posted by GWB on 5 Apr 2005, 6:13 p.m., in response to message #1 by Trent Moseley INT: f RR f RL FRAC: ENTER f RR f RL - (If you want INT to work with negative arguments, change it to this: ENTER g ABS / g LSTx g ABS f RR f RL * ) Try them and tell me if they work. Regards, Gerson

Re: HP-16C Programing Message #8 Posted by Trent Moseley on 5 Apr 2005, 7:48 p.m., in response to message #7 by GWB Gerson, Your keystrokes don't seen to work on by machine. tm

Re: HP-16C Programing Message #9 Posted by GWB on 5 Apr 2005, 8:27 p.m., in response to message #8 by Trent Moseley Thanks for the feedback. I've tested it on Emmet Gray's WRPN (HP16C Simulator). Maybe that's not an exact simulator. In fact, on another simulator http://www.flounder.com/hp16c.htm rotation instructions don't seem to work in float mode, what I suppose is the behavior of the real 16C. Sorry. Gerson. Edited: 5 Apr 2005, 8:50 p.m.

Re: HP-16C Programing Message #10 Posted by Vieira, Luiz C. (Brazil) on 6 Apr 2005, 3:20 a.m., in response to message #9 by GWB Hi Gerson, guys; Except for the four arithmetic basic ones (+, -, × and ÷), the only arithmetic functions that work in floating point mode (actual HP16C) are square root and reciprocal (1/x). Also, number entry, stack manipulation and programming work as well. All of the integer-number related functions (bit manipulation, boolean operators, double-precision, etc.) are disabled in floating-point mode. If I am not worng, the only function disabled in integer mode operation is the reciprocal. Cheers. Luiz (Brazil) Edited: 6 Apr 2005, 6:15 a.m.

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