In SX Microcontrollers, SX/B Compiler and SX-Key Tool, rodneymc wrote:

Hi,
 

I have a few questions on the SX/B.

 

1.  Is this the right way to pass an address that's defined in a label?


Main:

   Pntr = DefinedLabel
   Subroutine @Pntr
   END

 

Subroutine:
 Pntr = __WParam12
 READ Pntr, myvalue                    ' get data and put in myvalue

 ' do other stuff.

Return


 

2.  I'm having trouble using the index with read.  For example, the following gives a syntax error on the +

 


 Main:

   ' main code here
   Pntr = DefinedLabel
   READ Pntr + 1, myvalue                    ' get number of notes

END


3.  Is it true that in SX/B, that we can't (yet) compound math statements?

   for example, the following code fails.

 


FOR idx = 0 TO myvalue * 2 - 1  

 

I would need to split this up into the following, using the math order of operations, correct?

 

myvalue = myvalue * 2

myvalue = myvalue - 1

FOR idx = 0 TO myvalue


     

4.  Finally, we can only send a single byte using serout, correct?  For example, some of Jon's code from a project I'm trying to convert from BS2 to SX/B has an array called midi, and he's able to do the following:

 

      SEROUT MidiOut, MidiBaud, [cmd, STR midi\(notes * 2)]


So, I would basically need to break down the above commands into bytes, and send each one individually using the SEROUT command?


Thanks!

 

Rodney

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