Assembly Language error in masm

0
votes
TITLE PGM16_3A:  BEEP
EXTRN TIMER_FLAG:BYTE

PUBLIC BEEP

.MODEL SMALL
.CODE
BEEP PROC

PUSH CX

MOV BL,0B6H
OUT 43H,AL

MOV AX,1193
OUT 42H,AL
MOV AL,AH
OUT 42H,AL
;ACTIVATE SPEAKER

IN AL,61H
MOV AH,AL
OR AL,11B
OUT 61H,AL

MOV CX,9
B_1:CMP TIMER_FLAG,1
JNE B_1
MOV TIMER_FLAG,0
LOOP B_1

MOV AL,AH ;      
END BEEP

There is an error "unmatched block nesting: BEEP" on line 36,

I am beginner so there may be some silly mistake... Help much appreciated.

1
assemblymasm

1 Answers

4
votes

You need BEEP ENDP before END BEEP. ENDP closes the procedure that you have begun with PROC and END ends the module giving an optional entry point. Read the manual for further information.