Conditional Compilation

Robert@HCC · 2006-07-23 10:24

Hi all,

We are converting some BS2 code over to BS2p. Looking at some code from Jon Williams psot on this and at some code I have here, I find I am a bit confused-

This is the code I want to add to Jon Williams work.....

' Set scale factor for PULSIN

#SELECT $STAMP
 #CASE BS2, BS2E
   Scale       CON     $200                    ' 2.0 us per unit
 #CASE BS2SX
   Scale       CON     $0CC                    ' 0.8 us per unit
 #CASE BS2P
   Scale       CON     $0C0                    ' 0.75 us per unit
 #CASE BS2PE
   Scale       CON     $1E1                    ' 1.88 us per unit
#ENDSELECT

here:

#SELECT $STAMP
  #CASE BS2, BS2E, BS2PE
    T1200       CON     813
    T2400       CON     396
    T4800       CON     188
    T9600       CON     84
    T19K2       CON     32
    TMidi       CON     12
    T38K4       CON     6

    N2400       CON     $418D
    N9600       CON     $4054

  #CASE BS2SX, BS2P
    T1200       CON     2063
    T2400       CON     1021
    T4800       CON     500
    T9600       CON     240
    T19K2       CON     110
    TMidi       CON     60
    T38K4       CON     45

    N2400       CON     $43FD
    N9600       CON     $40F1

  #CASE BS2PX
    T1200       CON     3313
    T2400       CON     1646
    T4800       CON     813
    T9600       CON     396
    T19K2       CON     188
    TMidi       CON     108
    T38K4       CON     84
#ENDSELECT

But looking at how the various case staements are set up, I have no idea how to add my code .. Can someone please enlighten a n00b coder [noparse]:D[/noparse]

Alohas, and Thanks!

Bruce Bates · 2006-07-23 12:03

Robert -

You can't really "add it to" Jon's conditional coding, since you seem to have different criteria than he does. Additionally, I feel it would be better documented if it was left to stand alone - unincorporated so to speak.

If you were of the belief that there could only be one set of conditionals, that is not the case at all. You can have as many #Select variable / #Case / #Endcase sets as you may require.

Thus, just stuff it in either before or after Jon's conditional coding, and off you go!

Regards,

Bruce Bates

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔

Chris Savage · 2006-07-24 05:18

Robert,

·· THe appropriate Scale constants from your source file can simply be added by themselves to the appropriate areas in the destination code.· For example:

Scale·······CON·····$200····················'·2.0·us·per·unit

Can be added to the the section:

#CASE·BS2,·BS2E,·BS2PE
····T1200·······CON·····813
····T2400·······CON·····396
····T4800·······CON·····188
····T9600·······CON·····84
····T19K2·······CON·····32
····TMidi·······CON·····12
····T38K4·······CON·····6

····N2400·······CON·····$418D
····N9600·······CON·····$4054
··· Scale·······CON·····$200····················'·2.0·us·per·unit

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Chris Savage
Parallax Tech Support
csavage@parallax.com

Robert@HCC · 2006-07-24 05:33

Thank you both!
And in particular, thanks Bruce, for this:

Bruce Bates said...
Robert -

If you were of the belief that there could only be one set of conditionals, that is not the case at all. You can have as many #Select variable / #Case / #Endcase sets as you may require.

Thus, just stuff it in either before or after Jon's conditional coding, and off you go!

Regards,

Bruce Bates

Thats excellent, and I will just do it that way, as I would like to include all of the data for the different stamps - we will also be experimenting with some BS2sx's and possibly a BS2e that someone is donating to our college.
hehe ..... even though Jon is not around, I still hear him saying ,over and over , "Read the datasheets!, use conditional compilation!! Google is your friend!!" ...

Post Edited (Robert@HCC) : 7/24/2006 5:37:21 AM GMT

Conditional Compilation

Comments