.386
.model flat,stdcall
option casemap:none
include windows.inc
include user32.inc
includelib user32.lib
include kernel32.inc
includelib kernel32.lib
.data
szCaption byte 'File Err',0
szText byte 'Cannot create file!',0
BigNum byte 1,4000 dup (0)
LenB dword 1
Temp byte 2,10 dup (0)
LenT dword 1
TR byte 4000 dup(0)
LenR dword 1
szFileName byte 'output.txt',0
hFile dword ?
.code
OutIt proc BN:dword,Len:dword
local Num:dword,endl:byte
pushf
pushad
mov esi,BN
mov edi,esi
add edi,Len
dec edi
while1: cmp esi,edi
jns endwhile1
mov al,[esi]
mov bl,[edi]
mov [esi],bl
mov [edi],al
inc esi
dec edi
jmp while1
endwhile1:
xor ecx,ecx
while2: cmp ecx,Len
jz endwhile2
mov eax,BN
add eax,ecx
add byte ptr [eax],'0'
inc ecx
jmp while2
endwhile2:
lea esi,Num
invoke WriteFile,hFile,BN,Len,esi,0
mov al,10
mov endl,al
invoke WriteFile,hFile,addr endl,1,esi,0
popad
popf
ret
OutIt endp
Multi proc BN1:dword,Len1:dword,BN2:dword,Len2:dword
local ten:byte
pushf
pushad
xor ecx,ecx
Init: cmp ecx,4000
jz EndInit
mov TR[ecx],0
inc ecx
jmp Init
EndInit:
xor ecx,ecx
mov esi,BN1
For1: cmp ecx,Len1
jz EndFor1
xor edx,edx
mov edi,BN2
For2: cmp edx,Len2
jz EndFor2
mov al,[esi]
mul byte ptr [edi]
mov ebx,ecx
add ebx,edx
add TR[ebx],al
inc edi
inc edx
jmp For2
EndFor2:
inc esi
inc ecx
jmp For1
EndFor1:
mov eax,Len1
add eax,Len2
mov LenR,eax
mov ten,10
lea esi,TR
xor ecx,ecx
For3: cmp ecx,LenR
jz EndFor3
mov al,[esi]
cbw
div ten
mov [esi],ah
inc esi
add [esi],al
inc ecx
jmp For3
EndFor3:
mov ecx,LenR
For4: mov al,TR[ecx]
test al,al
jnz EndFor4
dec ecx
jmp For4
EndFor4:
inc ecx
mov LenR,ecx
popad
popf
ret
Multi endp
CopyTRto proc BN:dword,adrLen:dword
pushf
pushad
mov edi,BN
lea esi,TR
xor ecx,ecx
while1: cmp ecx,LenR
jz endwhile1
mov al,[esi]
mov [edi],al
inc esi
inc edi
inc ecx
jmp while1
endwhile1:
mov esi,adrLen
mov [esi],ecx
popad
popf
ret
CopyTRto endp
calc proc exp:dword
pushf
pushad
mov ecx,exp
while1: jecxz endwhile1
invoke Multi,offset BigNum,LenB,offset Temp,LenT
invoke CopyTRto,offset BigNum,offset LenB
dec ecx
jmp while1
endwhile1:
popad
popf
ret
calc endp
start:
invoke CreateFile,offset szFileName,GENERIC_WRITE,FILE_SHARE_READ,0,CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,0
mov hFile,eax
cmp eax,INVALID_HANDLE_VALUE
jnz next
invoke MessageBox,0,offset szText,offset szCaption,MB_OK
invoke CloseHandle,eax
jmp Exit
next:
invoke calc,10000
invoke OutIt,offset BigNum,LenB
Exit: invoke CloseHandle,hFile
invoke ExitProcess,0
end start
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