please write clearly

Describe the fields of an assembly language statement. What is the difference between an executable statement and a directive statement in assembly language? Write assembly code that will allocate a block of 32 words in memory, starting at an even address, with the label BLOCK1 and initialize the words to 0. What does the following assembly code do: DATA_SEG SEGMENT PARA MEMORY 'DATA' DW 256 DUP(O) DATA_SEG ENDS ASSUME DS:DATA_SEG - What is a procedure and show the general structure of a near procedure called SUB that is accessible from other modules. What is the size of the a.) Memory space for the 8088 b.) Input/Output space for the 8086