Search notes:
SAS format: rb
rb creates a string out of a number (or vice versa?) that whose bytes in memory are the same as the number.
Thus, it is possible to create a hexadecimal representation of a stored double:
%macro doubleToHex(dbl);
dbl = &dbl;
rb = put(dbl, rb8. ); /* A double is 8 bytes */
hex = put(rb , hex16.); /* The hexadecimal representation is 16 bytes wide */
put dbl " = " hex;
%mend doubleToHex;
data _null_;
%doubleToHex(0.0) /* 0 = 0000000000000000 */
%doubleToHex(1.0) /* 1 = 000000000000F03F */
%doubleToHex(2.0) /* 2 = 0000000000000040 */
%doubleToHex(0.5) /* 0.5 = 000000000000E03F */
%doubleToHex(1.5) /* 1.5 = 000000000000F83F */
run;