Help with input

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Jakevfr

Joined: 03 Feb 2007
Posts: 26

Jakevfr 11 Feb 2007, 16:41

Here's my routine for getting user input:

Code:

clearget:
  mov bx, 0
  .loop:
    mov [get+bx], ' '
    inc bl
    cmp bl, 32
    jbe .loop
ret

getsint:
  call clearget
  mov bx, 0
  .input:
    mov ah, 8
    int 21h

    cmp al, 13
    je .complete

  .continue:
    mov ah, 2
    mov dl, al
    int 21h

    mov [get+bx], al
    inc bl
    jmp .input

  .complete:
    mov ax, get
    mov bx, 0
ret 

get db ' ' dup 32

Now whenever I use it all it returns is 259. Why is this and how can I fix it?

11 Feb 2007, 16:41

rugxulo

Joined: 09 Aug 2005
Posts: 2341
Location: Usono (aka, USA)

rugxulo 11 Feb 2007, 20:53

Code:

--- jake.asm    2007-02-11 14:50:18 +0000
+++ temp.asm    2007-02-11 14:47:08 +0000
@@ -1,8 +1,16 @@
+org 100h
+
+Komenco:        call getsint
+                mov ah,9
+                mov dx,get
+                int 21h
+Fino:           ret
+
 
 clearget:
   mov bx, 0
   .loop:
-    mov [get+bx], ' '
+    mov [get+bx], '$'
     inc bl
     cmp bl, 32
     jbe .loop
@@ -32,5 +40,5 @@
     mov bx, 0
 ret 
 
-get db ' ' dup 32              
+get db '$' dup 32

Quote:

[ WinXP ] Sun 02/11/2007>temp.com
Whatever, man!Whatever, man!
[ WinXP ] Sun 02/11/2007>scrndump

Does this not work like you want? (I don't exactly understand what "returns 259" means.)

P.S. moderator, please move this to DOS, por favor! Wink

11 Feb 2007, 20:53

Jakevfr

Joined: 03 Feb 2007
Posts: 26

Jakevfr 11 Feb 2007, 21:14

I gues I should explain what I'm wanting a little better. It works fine for strings, but I'm wanting to get numbers. I want the user to be able to input the number '65' and 65 be stored in the AX register for later use.

11 Feb 2007, 21:14

rugxulo

Joined: 09 Aug 2005
Posts: 2341
Location: Usono (aka, USA)

rugxulo 11 Feb 2007, 21:34

The number 65 is 41h (base 16), but the string '65' in AX would be 3635h. In other words, it's a bit more complicated.

Please read DOS FAQ or use FASMLIB (Win32, Linux) or read String to number and vice versa ??

11 Feb 2007, 21:34

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