hpgcc2 loop problem
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03-13-2021, 06:41 AM
(This post was last modified: 03-13-2021 06:42 AM by BINUBALL.)
Post: #1
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hpgcc2 loop problem
I use HPGCC2 and this tutorial to make sum program for 50g.
http://sense.net/~egan/hpgcc/ example, This sum program made in UserRPL looks like this Code: << -> n so, I want to C's speed. I coded this. Code: #include <hpgcc49.h> Code: << "Input 1 real" -> n But I execute this program to calculate 1 to 1000 sum, It gives 499500 instead of 500500. and number goes up over 1000, It gives wrong answer. ex) input -> answer 999 -> 499,500 (correct) 1,000 -> 499,500 (incorrect which is 500,500) 1,001 -> 500,500 (incorrect which is 501,501) 2,000 -> 1,999,000 (incorrect which is 2,001,000) 10,000,000 -> -2,001,260,032 (I think it is overflow) I'm a very noob for C, so my code may be wrong. What's wrong with my program? S.Korean / HP-50G | fx-570EX | fx-570CW | HP-200LX |
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03-15-2021, 10:14 AM
(This post was last modified: 03-15-2021 10:04 PM by brickviking.)
Post: #2
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RE: hpgcc2 loop problem
From quick testing here, your C code appears to be mostly correct. As you suspected, you're seeing overflows in your output for certain large inputs.
I can't tell what your HP code is doing though, as I've never tried compiling stuff under hpgcc and executing it from the calculator. This is the C code I used to test that things work, at least on a Linux machine (and probably a Microsoft setup too): Code:
(Post 336) Regards, BrickViking HP-50g |Casio fx-9750G+ |Casio fx-9750GII (SH4a) |
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03-15-2021, 10:22 AM
Post: #3
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RE: hpgcc2 loop problem
(03-13-2021 06:41 AM)BINUBALL Wrote: I use HPGCC2 and this tutorial to make sum program for 50g. Just a WAG (wild-ass guess) but could it be that you're putting a real on the stack while your routine expects an integer? Tom L Cui bono? |
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03-15-2021, 11:18 AM
Post: #4
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RE: hpgcc2 loop problem
(03-15-2021 10:14 AM)brickviking Wrote: From quick testing here, your C code appears to be correct. I can't tell what your HP code is doing though, as I've never tried compiling stuff under hpgcc and executing it from the calculator. I've tried with online C editor too and I confirmed there is no error. Program runs well. (03-15-2021 10:22 AM)toml_12953 Wrote:(03-13-2021 06:41 AM)BINUBALL Wrote: I use HPGCC2 and this tutorial to make sum program for 50g. That's a good guess. But I tried with integer 100, it gives 100 0. , therefore it doesn't compute sum. S.Korean / HP-50G | fx-570EX | fx-570CW | HP-200LX |
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03-15-2021, 05:55 PM
(This post was last modified: 03-15-2021 06:03 PM by Egan Ford.)
Post: #5
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RE: hpgcc2 loop problem
Can you try to just pop/push and see if the input and output are the same? I agree it may be a float/int thing.
Also for int use n = sat_pop_zint_llong(); Try that. |
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03-16-2021, 12:42 AM
(This post was last modified: 03-16-2021 12:47 AM by BINUBALL.)
Post: #6
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RE: hpgcc2 loop problem
(03-15-2021 05:55 PM)Egan Ford Wrote: Can you try to just pop/push and see if the input and output are the same? I agree it may be a float/int thing. Code: #include <hpgcc49.h> I wrote that code and bug happens too. 1000 -> 999, 1001 -> 1000.. Then what I have to use instead of sat_push_real()? sat_push_zint()? sat_push_zint_llong()? S.Korean / HP-50G | fx-570EX | fx-570CW | HP-200LX |
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03-16-2021, 03:34 AM
Post: #7
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RE: hpgcc2 loop problem
And, where can I find hpgcc2 functions?
S.Korean / HP-50G | fx-570EX | fx-570CW | HP-200LX |
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03-16-2021, 02:08 PM
Post: #8
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RE: hpgcc2 loop problem
Did you try to format sum and n as a long integer?
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03-16-2021, 04:20 PM
Post: #9
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RE: hpgcc2 loop problem
First thing you should try is to use hpgcc3 instead of hpgcc 2.0. It has several additional years of bug-fixing and a much more polished API to create/pop/push objects to the stack.
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03-17-2021, 01:19 AM
Post: #10
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RE: hpgcc2 loop problem
It works properly with zint, thank you for everyone.
And, here is my last source code. Code: #include <hpgcc49.h> S.Korean / HP-50G | fx-570EX | fx-570CW | HP-200LX |
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03-18-2021, 05:01 PM
Post: #11
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RE: hpgcc2 loop problem
(03-16-2021 03:34 AM)BINUBALL Wrote: And, where can I find hpgcc2 functions? Try here: https://web.archive.org/web/200904100244...hpgcc.org/ |
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03-18-2021, 05:02 PM
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RE: hpgcc2 loop problem | |||
03-19-2021, 02:51 PM
Post: #13
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RE: hpgcc2 loop problem
(03-18-2021 05:02 PM)Egan Ford Wrote: Does hpgcc3 still require a custom ROM? Yes, which is no big deal at all (never was). The OP posted a few things about newRPL, so I don't think he's nervous about running custom ROMS (if he trusted me to completely replace his firmware, what could go wrong with a couple tiny hacks...). |
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03-20-2021, 07:38 AM
Post: #14
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RE: hpgcc2 loop problem
(03-19-2021 02:51 PM)Claudio L. Wrote:Does HPGCC3 completely replace stock rom like newRPL? And can I go back stock rom whenever I want?(03-18-2021 05:02 PM)Egan Ford Wrote: Does hpgcc3 still require a custom ROM? Trying HPGCC3 may not be bad for me. S.Korean / HP-50G | fx-570EX | fx-570CW | HP-200LX |
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