* hbytes overwrite VAR START VALUE
* hbytes trimleft VAR removes any leading 0 octets
* hbytes repeat VALUE COUNT => COUNT copies of VALUE
+ * hbytes zeroes COUNT => COUNT zero bytes
+ * hbytes random COUNT => COUNT random bytes
+ * hbytes xor VAR VALUE $VAR (+)= VALUE
*
* hbytes ushort2h LONG => LONG must be <2^16, returns as hex
* hbytes h2ushort HEX => |HEX| must be 2 bytes, returns as ulong
* hbytes overwrite VAR START VALUE
* hbytes trimleft VAR removes any leading 0 octets
* hbytes repeat VALUE COUNT => COUNT copies of VALUE
+ * hbytes zeroes COUNT => COUNT zero bytes
+ * hbytes random COUNT => COUNT random bytes
+ * hbytes xor VAR VALUE $VAR (+)= VALUE
*
* hbytes ushort2h LONG => LONG must be <2^16, returns as hex
* hbytes h2ushort HEX => |HEX| must be 2 bytes, returns as ulong