Jerry, there is not context. I just compile a module with this code. And the compile does not report arrors nor warnings (it might be a runtime error). It simply crashes and windows closes the gui. It happens in codewarrior 5.0.5 with W2000. I have not tested in other environments.

Note. I am using other account, because I cannot use the same until monday.

Thanks to you and John.

Santi.

----- Mensaje Original -----
Remitente: "Johnson, Jerry" j...@giddings.com
Destinatario: 'Winters John-r54531' J...@motorola.com, 'Santi Corera' s...@telefonica.net, m...@yahoogroups.com
Fecha: Jueves, Enero 29, 2004 7:28pm
Asunto: RE: [motoroladsp] Codewarrior 5.0.5 bug ?

The difference might be in the context!!! Nested do loops can create an overflow of the hardware loop stack during interrupt operations. Allowing do loops may create other loops in interrupt code.

Jerry.

-----Original Message-----
From: Winters John-r54531 [mailto:J...@motorola.com]
Sent: Thursday, January 29, 2004 11:02 AM
To: 'Santi Corera'; m...@yahoogroups.com
Subject: RE: [motoroladsp] Codewarrior 5.0.5 bug ?

I just used CW 6.0 and it handled it very well. Here is the generated .asm file:

include "asmdef.h"

SECTION allowdo ; declarations
  global Fmain
ENDSEC

SECTION allowdo ; declarations
  xref ARTMAIN
ENDSEC

SECTION allowdo ; declarations
  global Fptr1
  global Ft
ENDSEC

SECTION allowdo

ORG P:

;
;   37:
;   38: void main(short param){
;   39:    short i;
;   40:    short *ptr;
;   41:    if(param == 0){
;
  subroutine "Fmain",Fmain,end_Fmain-Fmain
Fmain:
              tst.w       Y0
              bne         <_L6_0 ; *+11
;
;   42:       for(i=0, ptr=ptr1; i<8; i++)
;
              move.w      #<0,B
              moveu.w     X:>Fptr1,R0
;
;   43:           *ptr++ = i+1;
;   44:    }
;   45:    else{
;
              do          #<8,>_L6_1
              move.w      B1,A
              add.w       #<1,A
              move.w      A1,X:(R0)+
              add.w       #<1,B
_L6_1:
              bra         <_L6_2 ; *+3
;
;   46:       t = 0;
;   47:    }
;
_L6_0:
              move.w      #<0,X:>Ft
;
;   48: }
;
_L6_2:
              rts
end_Fmain:

ENDSEC

SECTION allowdo

ORG X:

;   *** UNINITIALIZED DATA (.bss) ***

   align 2
  Fptr1: ds 1

ENDSEC

SECTION allowdo

ORG X:

;   *** UNINITIALIZED DATA (.bss) ***

   align 2
  Ft: ds 1

ENDSEC

END

-----------------------------------
John L. Winters
Sr. Application Engineer
DSP Operation 8/16 Bit Products Division
Transportation & Standard Products Group Motorola Inc.
-----------------------------------
* For faster turnaround in answering support questions please access *
* Motorola's Customer Support web site at *
* http://www.motorola.com/semiconductors/support *
* *
* Or send email to: D...@motorola.com *
-----------------------------------

Motorola General Business Information

-----Original Message-----
From: Santi Corera [mailto:s...@telefonica.net]
Sent: Thursday, January 29, 2004 9:40 AM
To: m...@yahoogroups.com
Subject: [motoroladsp] Codewarrior 5.0.5 bug ?

// please, look this simple code, I have extracted and simplified it from a large proyect:

short t;

short *ptr1;

void Init(short ta);

void Init(short param){
   short i;
   short *ptr;

   if(param == 0){
      for(i=0, ptr=ptr1; i<8; i++)
          *ptr++ = i+1;
   }
   else{
      t = 0;
   }

}

// if you compile it with some optimization level (say Level 1, for speed) and
// mark "allow DO instructions" in settings->M56800 Processor, Codewarrior
// crashes.
// The only way to compile it is without optimization or not allowing DO
// instructions.
// I am working with version 5.0.5
// Can somebody tell me if this bug is corrected in a posterior version of codewarrior ?
// Thanks.

_____________________________________ Note: If you do a simple "reply" with your email client, only the author of this message will receive your answer. You need to do a "reply all" if you want your answer to be distributed to the entire group. _____________________________________ About this discussion group: To Join: m...@yahoogroups.com To Post: m...@yahoogroups.com To Leave: m...@yahoogroups.com Archives: http://www.yahoogroups.com/group/motoroladsp More Groups: http://www.dsprelated.com/groups.php3Yahoo! Groups LinksTo

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service. For more information visit http://www.messagelabs.com
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Message

The difference might be in the context!!! Nested do loops can create an overflow of the hardware loop stack during interrupt operations. Allowing do loops may create other loops in interrupt code.

Jerry.

-----Original Message-----
From: Winters John-r54531 [mailto:J...@motorola.com]
Sent: Thursday, January 29, 2004 11:02 AM
To: 'Santi Corera'; m...@yahoogroups.com
Subject: RE: [motoroladsp] Codewarrior 5.0.5 bug ?

I just used CW 6.0 and it handled it very well. Here is the generated .asm file:

include "asmdef.h"

SECTION allowdo ; declarations
  global Fmain
ENDSEC

SECTION allowdo ; declarations
  xref ARTMAIN
ENDSEC

SECTION allowdo ; declarations
  global Fptr1
  global Ft
ENDSEC

SECTION allowdo

ORG P:

;
;   37:
;   38: void main(short param){
;   39:    short i;
;   40:    short *ptr;
;   41:    if(param == 0){
;
  subroutine "Fmain",Fmain,end_Fmain-Fmain
Fmain:
              tst.w       Y0
              bne         <_L6_0 ; *+11
;
;   42:       for(i=0, ptr=ptr1; i<8; i++)
;
              move.w      #<0,B
              moveu.w     X:>Fptr1,R0
;
;   43:           *ptr++ = i+1;
;   44:    }
;   45:    else{
;
              do          #<8,>_L6_1
              move.w      B1,A
              add.w       #<1,A
              move.w      A1,X:(R0)+
              add.w       #<1,B
_L6_1:
              bra         <_L6_2 ; *+3
;
;   46:       t = 0;
;   47:    }
;
_L6_0:
              move.w      #<0,X:>Ft
;
;   48: }
;
_L6_2:
              rts
end_Fmain:

ENDSEC

SECTION allowdo

ORG X:

;   *** UNINITIALIZED DATA (.bss) ***

   align 2
  Fptr1: ds 1

ENDSEC

SECTION allowdo

ORG X:

;   *** UNINITIALIZED DATA (.bss) ***

   align 2
  Ft: ds 1

ENDSEC

END

-----------------------------------
John L. Winters
Sr. Application Engineer
DSP Operation 8/16 Bit Products Division
Transportation & Standard Products Group Motorola Inc.
-----------------------------------
* For faster turnaround in answering support questions please access *
* Motorola's Customer Support web site at *
* http://www.motorola.com/semiconductors/support *
* *
* Or send email to: D...@motorola.com *
-----------------------------------

Motorola General Business Information

-----Original Message-----
From: Santi Corera [mailto:s...@telefonica.net]
Sent: Thursday, January 29, 2004 9:40 AM
To: m...@yahoogroups.com
Subject: [motoroladsp] Codewarrior 5.0.5 bug ?

// please, look this simple code, I have extracted and simplified it from a large proyect:

short t;

short *ptr1;

void Init(short ta);

void Init(short param){
   short i;
   short *ptr;

   if(param == 0){
      for(i=0, ptr=ptr1; i<8; i++)
          *ptr++ = i+1;
   }
   else{
      t = 0;
   }

}

// if you compile it with some optimization level (say Level 1, for speed) and
// mark "allow DO instructions" in settings->M56800 Processor, Codewarrior
// crashes.
// The only way to compile it is without optimization or not allowing DO
// instructions.
// I am working with version 5.0.5
// Can somebody tell me if this bug is corrected in a posterior version of codewarrior ?
// Thanks.

_____________________________________ Note: If you do a simple "reply" with your email client, only the author of this message will receive your answer. You need to do a "reply all" if you want your answer to be distributed to the entire group. _____________________________________ About this discussion group: To Join: m...@yahoogroups.com To Post: m...@yahoogroups.com To Leave: m...@yahoogroups.com Archives: http://www.yahoogroups.com/group/motoroladsp More Groups: http://www.dsprelated.com/groups.php3Yahoo! Groups LinksTo

_____________________________________ Note: If you do a simple "reply" with your email client, only the author of this message will receive your answer. You need to do a "reply all" if you want your answer to be distributed to the entire group. _____________________________________ About this discussion group: To Join: m...@yahoogroups.com To Post: m...@yahoogroups.com To Leave: m...@yahoogroups.com Archives: http://www.yahoogroups.com/group/motoroladsp More Groups: http://www.dsprelated.com/groups.php3Yahoo! Groups LinksTo

________________________________________________________________________
This email has been scanned for all viruses by the MessageLabs SkyScan
service. For more information visit http://www.messagelabs.com
________________________________________________________________________

________________________________________________________________________
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________________________________________________________________________

Message

I just used CW 6.0 and it handled it very well. Here is the generated .asm file:

include "asmdef.h"

SECTION allowdo ; declarations
global Fmain
ENDSEC

SECTION allowdo ; declarations
xref ARTMAIN
ENDSEC

SECTION allowdo ; declarations
global Fptr1
global Ft
ENDSEC

SECTION allowdo

ORG P:

;
;   37:
;   38: void main(short param){
;   39:    short i;
;   40:    short *ptr;
;   41:    if(param == 0){
;
  subroutine "Fmain",Fmain,end_Fmain-Fmain
Fmain:
              tst.w       Y0
              bne         <_L6_0 ; *+11
;
;   42:       for(i=0, ptr=ptr1; i<8; i++)
;
              move.w      #<0,B
              moveu.w     X:>Fptr1,R0
;
;   43:           *ptr++ = i+1;
;   44:    }
;   45:    else{
;
              do          #<8,>_L6_1
              move.w      B1,A
              add.w       #<1,A
              move.w      A1,X:(R0)+
              add.w       #<1,B
_L6_1:
              bra         <_L6_2 ; *+3
;
;   46:       t = 0;
;   47:    }
;
_L6_0:
              move.w      #<0,X:>Ft
;
;   48: }
;
_L6_2:
              rts
end_Fmain:

ENDSEC

SECTION allowdo

ORG X:

; *** UNINITIALIZED DATA (.bss) ***

align 2
Fptr1: ds 1

ENDSEC

SECTION allowdo

ORG X:

; *** UNINITIALIZED DATA (.bss) ***

align 2
Ft: ds 1

ENDSEC

END

-----------------------------------
John L. Winters
Sr. Application Engineer
DSP Operation 8/16 Bit Products Division
Transportation & Standard Products Group Motorola Inc.
-----------------------------------
* For faster turnaround in answering support questions please access *
* Motorola's Customer Support web site at *
* http://www.motorola.com/semiconductors/support *
* *
* Or send email to: D...@motorola.com *
-----------------------------------

Motorola General Business Information

-----Original Message-----
From: Santi Corera [mailto:s...@telefonica.net]
Sent: Thursday, January 29, 2004 9:40 AM
To: m...@yahoogroups.com
Subject: [motoroladsp] Codewarrior 5.0.5 bug ?

// please, look this simple code, I have extracted and simplified it from a large proyect:

short t;

short *ptr1;

void Init(short ta);

void Init(short param){
   short i;
   short *ptr;

   if(param == 0){
      for(i=0, ptr=ptr1; i<8; i++)
          *ptr++ = i+1;
   }
   else{
      t = 0;
   }

}

// if you compile it with some optimization level (say Level 1, for speed) and
// mark "allow DO instructions" in settings->M56800 Processor, Codewarrior
// crashes.
// The only way to compile it is without optimization or not allowing DO
// instructions.
// I am working with version 5.0.5
// Can somebody tell me if this bug is corrected in a posterior version of codewarrior ?
// Thanks.

_____________________________________ Note: If you do a simple "reply" with your email client, only the author of this message will receive your answer. You need to do a "reply all" if you want your answer to be distributed to the entire group. _____________________________________ About this discussion group: To Join: m...@yahoogroups.com To Post: m...@yahoogroups.com To Leave: m...@yahoogroups.com Archives: http://www.yahoogroups.com/group/motoroladsp More Groups: http://www.dsprelated.com/groups.php3Yahoo! Groups LinksTo

// please, look this simple code, I have extracted and simplified it from a large proyect:

short t;

short *ptr1;

void Init(short ta);

void Init(short param){
short i;
short *ptr;

   if(param == 0){
      for(i=0, ptr=ptr1; i<8; i++)
          *ptr++ = i+1;
   }
   else{
      t = 0;
   }

}

// if you compile it with some optimization level (say Level 1, for speed) and
// mark "allow DO instructions" in settings->M56800 Processor, Codewarrior
// crashes.
// The only way to compile it is without optimization or not allowing DO
// instructions.
// I am working with version 5.0.5
// Can somebody tell me if this bug is corrected in a posterior version of codewarrior ?
// Thanks.