Every procedure block opened with the PROC directive must be ended with the ENDP directive.

Syntax

procedure-name ENDP

Remarks

If the ENDP directive is not used with the PROC directive, an error occurs. An unmatched ENDP also causes an error.

Note: See the PROC directive in this chapter for more detail and examples of ENDP use.

Example

PUSH     AX               ; Push third parameter
PUSH     BX               ; Push second parameter
PUSH     CX               ; Push first parameter
CALL     ADDUP            ; Call the procedure
ADD      SP,6             ; Bypass the pushed parameters
.
.
.
ADDUP    PROC   NEAR      ; Return address for near call
                          ; takes two bytes
         PUSH   BP        ; Save base pointer - takes two more
                          ; so parameters start at 4th byte
         MOV    BP,SP     ; Load stack into base pointer
         MOV    AX,[BP+4] ; Get first parameter
                          ; 4th byte above pointer
         ADD    AX,[BP+6] ; Get second parameter
                          ; 6th byte above pointer
         ADD    AX,[BP+8] ; Get third parameter
                          ; 8th byte above pointer
         POP    BP        ; Restore base
         RET              ; Return
ADDUP    ENDP

In this example, three numbers are passed as parameters for the procedure ADDUP. Parameters are often passed to procedures by pushing them before the call so that the procedure can read them off the stack.

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