算法:
((N+1)*N)/2
.386
include io32.inc
include kernel32.inc
includelib kernel32.lib
include msvcrt.inc
includelib msvcrt.lib
.data
num dword 234
sum dword ?
.code
start:
mov eax,num
add eax,1
mul num
shr edx,1
rcr eax,1
mov dword ptr sum,eax
mov dword ptr sum+4,edx
call dispuid
exit 0
end start