[sdcc-devel] [ sdcc-Bugs-954098 ] genCast problem when destination is a pointer

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Bugs item #954098, was opened at 2004-05-14 10:20
Message generated for change (Comment added) made by nobody
You can respond by visiting: 
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Category: pic14 target
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: genCast problem when destination is a pointer

Initial Comment:


genCast dosn't handle pointers properly when assigning 
the converted value


using popGet(AOP(result),offset i think is wrong because 
your using pointers here.

this only applies when assiging to a pointer

eg.
 int i;
 i = 350;
 *fred = (byte) (i<<8);


I believe this code is the culprit. If assigning a value to 
where pointer is pointing. It dosn't incrament it.

in file pic/gen.c

    } else {
      /* if they in different places then copy */
      size = AOP_SIZE(result);
      offset = 0 ;
      while (size--) {
        emitpcode(POC_MOVFW, popGet(AOP
(right),offset));
        emitpcode(POC_MOVWF, popGet(AOP
(result),offset));
        //aopPut(AOP(result),
        // aopGet(AOP(right),offset,FALSE,FALSE),
        // offset);

        offset++;
      }




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Comment By: Nobody/Anonymous (nobody)
Date: 2004-05-14 11:09

Message:
Logged In: NO 

this code dosn't work
    word a = (word) (task);
    if (task_No < MAX_TASKS) {
      task_PCL[task_No] = (byte) a;
      task_PCLATH[task_No] = (byte) (a>>8); 
      task_delay[task_No]  = STOP;
    }

this code does

    word a = (word) (task);
    byte b;
    if (task_No < MAX_TASKS) {
      b = (byte) a;
      task_PCL[task_No] = b;     // task address low byte
      b = (byte)(a>>8);
      task_PCLATH[task_No] = b;   // task address hi byte
      task_delay[task_No]  = STOP;
    }

casts don't work when used with arrays


----------------------------------------------------------------------

Comment By: Nobody/Anonymous (nobody)
Date: 2004-05-14 11:08

Message:
Logged In: NO 

this code dosn't work
    word a = (word) (task);
    if (task_No < MAX_TASKS) {
      task_PCL[task_No] = (byte) a;
      task_PCLATH[task_No] = (byte) (a>>8); 
      task_delay[task_No]  = STOP;
    }

this code does

    word a = (word) (task);
    byte b;
    if (task_No < MAX_TASKS) {
      b = (byte) a;
      task_PCL[task_No] = b;     // task address low byte
      b = (byte)(a>>8);
      task_PCLATH[task_No] = b;   // task address hi byte
      task_delay[task_No]  = STOP;
    }

casts don't work when used with arrays


----------------------------------------------------------------------

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