DLS file layout and comments

Following format shows, how to write DLS file.

Usually program start with ".start" and following line with subroutine name

Semicolon (;) used for comments and used in end of the statements

Label         Opcode       Operands      Comments

L1               add             r1,r0,r1           ;r1++

Memory address declaration

Label:            .word    exp1

r1backup       .word    4

r1backup   reference pointer for memory address 4

Allocating empty space on DLX program

Label:      .space     expr

Array:      .space       40      ;Allocate 10 words 

Setting the program start address

                 .start expr

Example

                 .start Main ;Jump to Main

Array: .space 10*4

Index: .word 0

Main: lw r1, Index      ;Jump to here

Tags:DLS file layout and comments,DLS file layout,DLS file commands,DLX file