REXX Tips & Tricks, Version 2.80

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Convert values from/to INTEL format





On Intel processors words and doublewords are saved in the so-called INTEL 
format (LSB - last signifcant byte first). To use them, you must convert 
them into the MSB format (MSB - most significant byte first). 
Before using the following routine, you must convert the value into a hex 
string (see Get the display resolution for an example). 



 
/* ------------------------------------------------------------------ */
/* function: Convert an WORD or DWORD from LSB format to MSB format   */
/*           and vice versa                                           */
/*                                                                    */
/* call:     LSB2MSB inputHexString                                   */
/*                                                                    */
/* where:    inputHexstring - input value as hexstring                */
/*                            (e.g. "3412", "78563412")               */
/*                                                                    */
/* output:   value in MSB format as hexstring                         */
/*           (e.g. "1234", "12345678")                                */
/*                                                                    */
LSB2MSB: PROCEDURE
  RETURN strip( translate( "12345678", arg(1), "78563412" ) )







  





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