剑与家园礼包:有谁能帮我编一个关于计算加,减,乘,除,阶乘,平方,立方,平方根系统的的汇编程序!

你的问题也太多了吧，我这个学期学习微机原理，编了进制之间的转换程序，现在给你参考下吧，不过我想其他的程序你应该参考书来做一下，试试一定可以的！
;Binary to Hex
;二进制向十六进制转换

data segment
t1 db 10 dup(?)
data ends
stack segment
t2 db 10 dup(?)
stack ends
code segment
assume cs:code,ss:stack,ds:data
main proc
start:
mov ax,stack
mov ss,ax
mov ax,data
mov ds,ax

mov al,10011111b
mov bl,al
mov dl,al
mov cl,4
ror dl,cl
and dl,0fh
cmp dl ,10
jnl change
back:
add dl,30h
mov ah,2
int 21h

mov al,bl
mov dl,al
and dl,0fh
cmp dl,10
jnl change2
back2:
add dl,30h
mov ah,2
int 21h

mov ah,4ch
int 21h
change:
add dl,7
jmp back
change2:
add dl,7
jmp back2

main endp
code ends
end start

;十进制向二进制转换
;chang Decimall to binary
;the number is put in ax
data segment
t1 db 100 dup(?)
data ends
stack segment
t2 db 100 dup(?)
top label byte
stack ends
code segment
assume cs:code,ss:stack,ds:data
main proc
start:
mov ax,stack
mov ss,ax
mov ax,data
mov ds,ax

mov ax,12
mov bx,2
mov cx,0
decloop:
xor dx,dx
div bx ;(dx=reminder,ax=quotient)
inc cx
push dx
cmp ax,0
jnz decloop

poploop:
pop dx
add dl,30h
mov ah,2
int 21h
dec cx
jnz poploop

mov ah,4ch
int 21h
main endp
code ends
end start

;十进制向十六进制转换
; change decimal to hex
;the number is put in ax
data segment
t1 db 100 dup(?)
data ends
stack segment
t2 db 100 dup(?)
top label byte
stack ends
code segment
assume cs:code,ss:stack,ds:data
main proc
start:
mov ax,stack
mov ss,ax
mov ax,data
mov ds,ax

mov ax,3456
mov cx,0
mov bx,16

decloop:
xor dx,dx
div bx ;(dx=reminder,ax=quotient)
cmp dx,10
jnl change
push dx
putto:
inc cx
cmp ax,0
jnz decloop

poploop:
pop dx
add dl,30h
mov ah,2
int 21h
dec cx
jnz poploop

mov ah,4ch
int 21h

change:
add dx,7
push dx
jmp putto
main endp
code ends
end start

;十六进制向十进制转化
;chang H to D
;the number is put in ax
data segment
t1 db 100 dup(?)
data ends
stack segment
t2 db 100 dup(?)
top label byte
stack ends
code segment
assume cs:code,ss:stack,ds:data
main proc
start:
mov ax,stack
mov ss,ax
mov ax,data
mov ds,ax

mov ax,1234h
xor cx,cx
mov bx,10

decloop:
xor dx,dx
div bx ;(dx=reminder,ax=quotient)
inc cx
push dx
cmp ax,0
jnz decloop

;output
poploop:
pop dx
add dl,'0'
mov ah,2
int 21h
dec cx
jnz poploop

;return to dos
mov ah,4ch
int 21h
main endp
code ends
end start

作业？不做