.model small
.stack
.data
.code
start:
mov ah,1
int 21h
mov ah,2
mov dl,0ah
int 21h
push ax
mov ah,1
int 21h
mov ah,2
int 21h
pop bx
add ax,bx
aaa
add al,30h
mov dl,al
mov ah,2
int 21h
end startOk guys?this is another addition program in tasm..
im using a different approach in adding 2 digits..
i was wondering why my 2nd input wont show even there is service 2,,can someone help me with this problem..thnks
You need something like the following. I did this in an editor so you'll have to debug it! Note the comments!
.model small
.stack
.data
.code
start:
mov ah,1
int 21h ; DOS - Read character from StdIn (Key)
; al=char read
; mov ah,2
; mov dl,0ah ; WRITE LineFeed ????
; int 21h ; DOS - Write character to StdOut
; ; NOTE: AL is now destroyed! as LineFeed was written!
;;; BASED upon your error, and this next push....
mov ah,2
mov dl,al
int 21h
push ax ; Save Old Character
mov ah,1
int 21h ; DOS - Read character from StdIn (Key)
; al = char read
mov ah,2
int 21h ; DOS - Write character to StdOut
pop bx ; Restore Old Character
; al = 2nd char bl = 1st char
; You aren't doing BCD so why are you using the instruction AAA ?
;;; add ax,bx
;;; aaa
mov ah,0
add al,bl
daa ; Decimal adjust High Nibble, Low Nibble
;ah=high digit, al=low digit
mov dh,al ; Save lower digit
mov dl,ah ; Upper digit
add dl,30h
mov ah,2
int 21h ; DOS - Write Digit Upper ASCII
mov dl,dh ; Lower Digit
add dl,30h
mov ah,2
int 21h ; DOS - Write digit Lower ASCII
end startMy mistake
Line #40 should be
;daa ; Decimal adjust
aaa ; Ascii adjustdaa puts result of two unpacked adds into upper nibble of al.
aaa adds the BCD (lower nibble) carry result onto the ah register. Why it needs to be pre-cleared.
ok thanks wildgoose im gona try and debug..cheers
awts... is this code right?im troubled by this codes.. NEW kid in town.. just studied assembly..can any1 help me out? here is me e-add..
sir can u make an assembly code that will add 2 input please?
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