This looks neat, but I'm not really sure I understand it.

> The program outputs a file containing the important parts of 
> code to convert reading to six decimal digits.  Three digits 
> to left of decimal point and three to right of decimal point. 
>  Each bit of a/d is tested and if set then the code for that 
> bit is executed.  

So there are a series of bit test and jmps somewhere that call the code in
the generated listing? Don't there need to be labels? E.g. bit9: 

> Afterwards each byte (low order byte
> first) is tested for less than 10.  If 10 or greater then 10 
> is subtracted from it and the next higher order digit (byte) 
> is incremented.  This is done to each byte until it is less 
> than 10.  Then the ASCII digits could be compared with the a/d values.

Could you post a sample of that code?

> The qbasic program can output conversion for most values by 
> changing one variable 'ref' from 200 to the wanted value.  
> The qbasic program could be modified to convert one hex a/d 
> value to another hex value.  As in converting the example 
> from the a/d  Celsius  reading to the hex value for Fahrenheit.
> 
> Also the concept of having a pc program generate asm data 
> code for a nonlinear function  is useful.

Code generators are my favorite thing in the world.
http://www.massmind.org

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> Bill
> 
> Included the output file with code as it seems the mail 
> program lost the tabs.
> 
> ******* code generated by program follows *********
> 
> ;  for bit 9   100
> 
>  movlw D'1'
>  addwf CVD0,F
> 
> 
> ;  for bit 8   50
> 
>  movlw D'5'
>  addwf CVD1,F
> 
> 
> ;  for bit 7   25
> 
>  movlw D'2'
>  addwf CVD1,F
>  movlw D'5'
>  addwf CVD2,F
> 
> 
> ;  for bit 6   12.5
> 
>  movlw D'1'
>  addwf CVD1,F
>  movlw D'2'
>  addwf CVD2,F
>  movlw D'5'
>  addwf CVD3,F
> 
> 
> ;  for bit 5   6.25
> 
>  movlw D'6'
>  addwf CVD2,F
>  movlw D'2'
>  addwf CVD3,F
>  movlw D'5'
>  addwf CVD4,F
> 
> 
> ;  for bit 4   3.125
> 
>  movlw D'3'
>  addwf CVD2,F
>  movlw D'1'
>  addwf CVD3,F
>  movlw D'2'
>  addwf CVD4,F
>  movlw D'5'
>  addwf CVD5,F
> 
> 
> ;  for bit 3   1.5625
> 
>  movlw D'1'
>  addwf CVD2,F
>  movlw D'5'
>  addwf CVD3,F
>  movlw D'6'
>  addwf CVD4,F
>  movlw D'3'
>  addwf CVD5,F
> 
> 
> ;  for bit 2   .78125
> 
>  movlw D'7'
>  addwf CVD3,F
>  movlw D'8'
>  addwf CVD4,F
>  movlw D'1'
>  addwf CVD5,F
> 
> 
> ;  for bit 1   .390625
> 
>  movlw D'3'
>  addwf CVD3,F
>  movlw D'9'
>  addwf CVD4,F
>  movlw D'1'
>  addwf CVD5,F
> 
> 
> ;  for bit 0   .1953125
> 
>  movlw D'1'
>  addwf CVD3,F
>  movlw D'9'
>  addwf CVD4,F
>  movlw D'5'
>  addwf CVD5,F
> 
> 
> ; max value a/d is   199.805
> 
> ********  end of code  **********
> '.

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