Problem when compiling pointers with GNU

["Johan Larsson" <johan_larsson_82@xxxxxxxxxxx>]

Hi all.

I have compiled simple code with GNU compiler 2.95.3 under Cygwin and run 
the produced ANSI-C code on a Motorola 68040 witch works fine. Now I want to 
make the code more advanced by using pointers.
When I try to compile code like attached with GNU compiler 2.95.3 under 
Cygwin the compilation is passed without errors. But when I run the produced 
code on the Motorola 68040 the pointer usage seems not to work. In fact the 
variable A8_DMD_LAG_ST is not initialized to 8 as wanted when AS_INIT is 1 
the first loop. Also the value of A8_DMD_LAG_ST is after that constant witch 
is not intended.
For me it seems like something with the pointer usage is the problem. But I 
can?t recognize what. Is there a flag or setting to be changed in GCC 
compiler to compile pointers correctly for the processor?

The code works fine with visual c++ v6. Note that the code do not look 
exactly like attached when compiled with GNU. It is the use of the pointers 
that is of interest and not working.

Can someone please help me?

Thankful for help.

/Johan Larsson



program.c:


#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <be_ca8cdmds.h>


void main(void){

int i;

bool AS_INIT=1;



float MAX_13_1_1[10]={10,9,8,7,6,5,4,3,2,1};
static float A8_DMD_LAG_ST ;

int *iinfo = &I->iinfo[0];
float *rinfo = &I->rinfo[0];

struct _CA8CDMDS_ps *X = &S->CA8CDMDS_ps[S->CA8CDMDS_x];
struct _CA8CDMDS_ps *XD = &S->CA8CDMDS_ps[1-S->CA8CDMDS_x];
const float TSAMP   = rinfo[1];

for(i=0;i<10;i++){

 if( AS_INIT ) {

      A8_DMD_LAG_ST2 = 8.0;
 }

 if ( AS_INIT ) {
        I->A8_DMD_LAG_ST2 = &A8_DMD_LAG_ST2;
 }
 if( AS_INIT ) {
        X->CA8CDMDS_97_S1 = 0.0;
        X->A8_DMD_LAG_ST_S = 0.0;
        XD->CA8CDMDS_97_S1 = 0.0;
        XD->A8_DMD_LAG_ST_S = 0.0;
        X->A8_DMD_LAG_ST_S = (*I->A8_DMD_LAG_ST2);
 }

 if (AS_INIT && XREMAP) {
        X->A8_DMD_LAG_ST_S = X->A8_DMD_LAG_ST_S - TSAMP*MAX_13_1_1[i];
 }

 XD->A8_DMD_LAG_ST_S = X->A8_DMD_LAG_ST_S + TSAMP*MAX_13_1_1[i];


 A8_DMD_LAG_ST = XD->A8_DMD_LAG_ST_S;

 printf("%f  ",A8_DMD_LAG_ST);

 AS_INIT=0;


 }

}



be_ca8cdmds.h:



int XREMAP = 1;

float A8_DMD_LAG_ST2;

#ifndef _CA8CDMDS_H_
#define _CA8CDMDS_H_
#ifndef CA8CDMDS_STRUCTS
#define CA8CDMDS_STRUCTS


struct _CA8CDMDS_ps {
  float CA8CDMDS_97_S1;
  float A8_DMD_LAG_ST_S;
};

struct _CA8CDMDS_s {
  struct _CA8CDMDS_ps CA8CDMDS_ps[2];
  int CA8CDMDS_x;
};

struct _CA8CDMDS_info {
  int iinfo[5];
  float rinfo[5];
  float *A8_DMD_LAG_ST2;
};


struct _CA8CDMDS_info struct_I = {{0,1,0,0,0},{0.00,0.05,0.00,0.00,0.00}};
static struct _CA8CDMDS_info *I = &struct_I;

struct _CA8CDMDS_s struct_S;
static struct _CA8CDMDS_s *S = &struct_S;
#endif

static float A8_MIN_SCH_N;
static float A8_DOT_PS3_GAIN_N;
static float A8_DOT_PS3_BIAS_N;
static float A8_DOT_PS3_MAX_N;
static float A8_DOT_PS3_NEG_N;
static float ZA8_FLR_MOV_WFR_N;

#endif

_________________________________________________________________
Idolerna uppträder på MSN http://msnpresents.msn.com/hub/?mkt=sv-se