Eighteen years, such as eighty, save the children!!!!!!-CodePudding

This is the title,

This is I wrote,

Why will only output a blank square?

CodePudding user response:

 # include & lt; stdio.h> 
Void DecToBin (int n, char [] b); 
Int main (void) 
{
int n; 
Char [99] b={0}; 
The scanf (" % d ", & amp; N); 
DecToBin (n, b); 
return 0; 
} 

Void DecToBin (int n, char [] b) 
{
Int k, j, I=0; 
While (n!=0) 
{
//b [I]=n % 2; 
[I]=n % 2 b + '0'. 
N=n/2; 
i++; 
} 
B [I]='\ 0'; 
//for (j=I - 1; J & gt;=0; J++) 
For (j=I - 1; J & gt;=0; J -) 
{
Printf (" % c "[j]. B); 
} 
}

CodePudding user response:

Void DecToBin (int n, char [] b)
{
The __asm
{
Mov edx, n
Mov edi, b
Xor ecx, ecx
BSR ecx, edx
Inc ecx
Ror edx, cl
NEXT:
Xor al, al
SHL edx, 1
The adc al, 30 h
Stosb
Loop NEXT
Xor al, al
Stosb
}

Puts (b);
}

CodePudding user response:

GCC version

 
Void DecToBin (int n, char [] b) 
{
__asm__ (
"Movl % 0, % % edx;" 
"Movl % 1, % % edi;" 
"Xorl % % ecx, % % ecx;" 
"BSR % % edx, % % ecx;" 
"The inc % % ecx;" 
"Cl rorl % % % % edx;" 
"NEXT," 
"Xor % % al, % % al;" 
SHL $1, % % edx; "" 
"Adcb $0 x30, % % al;" 
"Stosb;" 
"Loop NEXT;" 
"Xor % % al, % % al;" 
"Stosb;" 
: : "m" (n), and "m" (b) 
); 

Puts (b); 
}