汤凯旋 发表于 2013-11-7 20:00:51

FCB unavailable

data segment
MA DB 10
LENDB ?
buffer db 10 dup(0)
data ends
assume cs:code,ds:data
code segment
start:
   mov ax,data
   mov ds,ax
   LEA DX,MA
   mov ah,0ah
   int 21h
   mov cx,0h
   mov cl,len
   lea bx,buffer
again:mov al,
      sub al,30h
      cmp al,9
      jbe l5
      CMP AL,16H
   JBE L6
      SUB AL,27H
      JMP L5
      
L6: SUB AL,7H
   
l5: mov ,al
    inc bx
    loop again
LEA BX,BUFFER
MOV AH,
INC BX
MOV AL,
MOV CL,4
SHL AH,CL
XOR AH,AL
MOV DH,AH
INC BX
MOV AH,
INC BX
MOV AL,
SHL AH,CL
XOR AH,AL
MOV DL,AH
MOV BX,DX
MOV DX,0H
MOV CX,16
NEXT:SHL BX,1
JC ONE
MOV DL,30H
JMP EXIT
ONE:MOV DL,31H
EXIT :MOV AH,21H
INT 21H
DEC CX
JNZ NEXT

    mov ah,4ch
    int 21h   
    code ends
    endstart
      
debug   调试时出现FCB unavailable      Abort, Fail?

565123 发表于 2013-11-10 17:07:46

http://support.microsoft.com/kb/95877/en-us

看看吧
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