Try ceil(12/5.0). I believe 12/5 is an integer division and is equal to 2.
12/5.0 is dividing by a double and is equal to 2.4.
- Wayne
On 27/06/2013, at 18:45, kuldeep dhaka <kuldeepdha...@gmail.com> wrote:
> //c program
>
> #include <msp430.h>
> #include <math.h>
>
> void main(void)
> {
> unsigned int i = ceil(12/5);
>
> P1DIR = i;
> }
>
> /////output
>
> .file "prog1.c"
> .arch msp430g2553
> .cpu 430
> .mpy none
>
> .section .init9,"ax",@progbits
> .p2align 1,0
> .global main
> .type main,@function
> /***********************
> * Function `main'
> ***********************/
> main:
> mov.b #2, &__P1DIR
> .LIRD0:
> .Lfe1:
> .size main,.Lfe1-main
> ;; End of function
>
> ////makefile
> PREFIX=msp430-
>
> MCU=msp430g2553
>
> # c compiler
> CC=$(PREFIX)gcc
> CFLAGS=-O2 -mmcu=$(MCU)
>
> all:
> $(CC) $(CFLAGS) -save-temps -o prog1.elf prog1.c
>
>
>
> i was expecting ceil(12/5) = 3 not 2.
>
> --
> *Kuldeep Singh Dhaka*
> Sakul
> +91-8791676237
> kuldeepdha...@gmail.com
> Programmer, Open Source, Web Developer, System Administrator, Entrepreneur,
> Animal Lover, Student, Reverse Engineer, Embedded System, Learning.
>
> Bitcoins Accepted.
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> Key<http://pgp.mit.edu:11371/pks/lookup?op=get&fingerprint=on&search=0x23816C5609DC7E26>
> Fork Me <https://github.com/kuldeepdhaka>
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