DA is for 'Define Ascii', which stores two ascii characters, as 7 bits each,
in each 14-bit value. You then use table reading instructions (on those PICs
which have such a thing) to read the data.

This has the advantage of allowing twice as much ascii text to be stored.

Bob Ammerman
RAm Systems
(contract development of high performance, high function, low-level
software)


----- Original Message -----
From: Kevin Blain <kevinb@WOODANDDOUGLAS.CO.UK>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Tuesday, August 29, 2000 4:44 AM
Subject: Re: [PIC]: MPLab - Problem with String Storage


> Use DT (define table) instead of DA
> not quite sure what DA does - it is probably short for DATA, which stores
> the data directly.
> ----- Original Message -----
> From: Werner Soekoe <WernerS@FSL.GOV.ZA>
> To: <PICLIST@MITVMA.MIT.EDU>
> Sent: Tuesday, August 29, 2000 8:28 AM
> Subject: [PIC]: MPLab - Problem with String Storage
>
>
> > Hi
> >
> > I'm trying to store strings in program memory, using MP Lab ver 5.11.02.
> My
> > code contains:
> >
> >  org 0x100
> >  DA "This is 16 chars"
> >  DA "This is also 16 "
> >  DA "La la la la la  "
> >
> > But when I compile the code, and then look at the Program Memory Window,
> > it contains the following, which I assume is not correct, since I
expected
> a
> > bunch of
> > retlw instructions:
> >
> > 0100  2A68          goto   0x268
> > 0101  34F3          retlw  0xF3
> > 0102  1069          bcf    0x69,0x0
> > 0103  39A0          andlw  0xA0
> > 0104  18B6          btfsc  0x36,0x1
> > 0105  1063          bcf    0x63,0x0
> > 0106  3461          retlw  0x61
> > 0107  3973          andlw  0x73
> > 0108  2A68          goto   0x268
> > 0109  34F3          retlw  0xF3
> > 010A  1069          bcf    0x69,0x0
> > 010B  39A0          andlw  0xA0
> > 010C  30EC          movlw  0xEC
> > 010D  39EF          andlw  0xEF
> > 010E  1031          bcf    0x31,0x0
> > 010F  1B20          btfsc  0x20,0x6
> > 0110  2661          call   0x661
> > 0111  106C          bcf    0x6C,0x0
> > 0112  30A0          movlw  0xA0
> > 0113  3661          ???     Illegal Opcode
> > 0114  106C          bcf    0x6C,0x0
> > 0115  30A0          movlw  0xA0
> > 0116  3661          ???     Illegal Opcode
> > 0117  1020          bcf    0x20,0x0
> >
> > I'm I doing something wrong? How can I resolve this problem???
> >
> > Thanks!
> >
> > Friendly Regards,
> > Werner Soekoe
> > WernerS@fsl.gov.za
> >
> > --
> > http://www.piclist.com hint: To leave the PICList
> > mailto:piclist-unsubscribe-request@mitvma.mit.edu
> >
>
> --
> http://www.piclist.com hint: To leave the PICList
> mailto:piclist-unsubscribe-request@mitvma.mit.edu

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu