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debugging .asm file

Discussion in 'Assembly Language Programming (ALP) Forum' started by ssg96b, Nov 25, 2006.

  1. ssg96b

    ssg96b New Member

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    When I want to debug my .asm file how do I do it line by line? Do I have to go into debug mode and enter the lines each one at a time? If that is the only way then how do I enter the labels in the code that I want to jump to at the debug prompt. When I enter labels it gives an error. for instance
    Code:
    ; TESTQUAD.ASM: TEST MY PROGRAM
    ;
    	.MODEL SMALL
    	.DATA
    X1 DB 4		;TEST CASE FOR VALUE 4
    Y1 DW 10	                ; Y SHOULD BE 10
    PASS DB 'Procedure passes.',0DH,0AH,'$'
    FAIL DB 'Procedure fails.',0DH,0AH,'$'
    
    	.CODE
    	.STARTUP
    	MOV AL,X1	;LOAD MY FIRST VALUE
    	CALL QUAD	;COMPUTE RESULTS
    	CMP AX,Y1 	;LOOK FOR MATCH
    	JNZ BAD
    	LEA DX,PASS	;SETUP POINTER
    	JMP SEND	;OUTPUT MESSAGE
    BAD: 	LEA DX,FAIL	;SETUP POINTER TO FAIL MESSAGE
    SEND: 	MOV AH,9	;DISPLAY STRING FUNCTION
    	INT 21H	;DOS CALL
    	.EXIT
    
    QUAD	PROC NEAR
    	MOV BL,AL	;save a copy of input value
    	MOV CX,10	;setting up 10x	
    	MUL CX		;compute 10X
    	MOV AL,32	; placing 50 dec into AL
    	SUB AX,CX	; perform y=50-10x
    	RET
    QUAD	ENDP
    
    END
    if I enter SEND: it will give an error and I am still trying to get this to work.
     
    Last edited by a moderator: Nov 27, 2006

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