math assembler functions

[Ilia Gildin]

hello
I need to convert 10 bits and more binary numbers to decimal numbers in order to show them in the LCD (In C its a lot easier as you can just make it as 1*2^10+1*2^9.....) how can I make a similar line in assembler and to make the number like 4096 to be '4' '0' '9' '6' in order to write it again in C I can simply divide and use mod but how to make assembler to do the job

 

[Easyrider83]

Take C function like this:

void uLongToStr (unsigned long Value, char * String)
{
  char zero=0;
  char tmp=0;
  unsigned long cnt=1000000000;
  while (cnt!=1)
  {
    while (Value>=cnt)
    {
      Value-=cnt;
      tmp++;
    }
    if (tmp) zero=1;
    if (zero) * String++ = tmp+48;
    tmp=0;
    cnt/=10;
  }
  * String = Value+48;
}

Compile it and see assembler listing ))) This is not more funny that use assembler today.

 

[milan.rajik]

If value is 12 then you split it into 1 and 2 and add 48 to each to convert to ascii character and then send the converted data to LCD.

 

[esp1]

hi,
This assembler bin to ASCII works OK. You need ASCII characters for the LCD display.
Change the .txt extension to .asm

E