Re: lug-bg: C++ & Assembler

[Georgi Ivanov <genius@xxxxxxxxxxxxxx>]

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Dimitar Terziev wrote:
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| =09-3>;O<>B>. ! ?8A0=5B> =0 :>40 =O<0E ?@>1;5< - ?8A0E 3> 2J2 Visual
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|
| <cut>
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| <8 5 :0:? @>120E 40 70?8H0 8=AB@C:F88B5 ?> A;54=8O =0G8=:
|
| __asm__ (
|
| "mov eax,a"
| .....
| .....
| .....
| );
|
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:0: A5
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| KDevelop? ;8 ?@>AB> B@O120 40 8<0 >I5 =O:>5 #include? :> =O:>9
?><>35=5 -
| I5 8<0< 40 G5@?O =O:>;:> 18@8 :)
|
| #include <iostream.h>
| int prov(int a, int b, int c) {
|         int max;
|                 _asm {
|
|                 mov eax,a
|                 mov ebx,b
|                 mov ecx,c
|                 mov max,ebx
|                 cmp eax,ebx
|                 jle end
|                 mov max,eax
|                 cmp ecx,max
|                 jle end1
|                 mov max,ecx
|
| end1:
|
| end:
|         cmp ecx,max
|                 jle end2
|                 mov max,ecx
|
| end2:
|
|         }
|
|         return max;
| }
|
| int main() {
| int a,b,c,res;
| cout << "Enter a: ";
| cin >> a;
| cout << "Enter b: ";
| cin >> b;
| cout << "Enter c: ";
| cin >> c;
| res = prov(a,b,c);
| cout<<"Max="<< res << endl;
| return 0;
| }
|
| </cut>
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За C е  приблизително така :
#include <stdio.h>


typedef struct{
~        int     y;
~        char    z[4];
}foome;

int foobar(foome *foo, foome *bar)
{
~        printf("foo.y = %d\tfoome.y = %d\n", foo->y, bar->y);
~        bar->y = foo->y;
~        return 1000;
};

int main(int  argc, char **argv)
{
~        foome   foo,    bar;
~        int     x = 0;

~        foo.y = 10;
~        bar.y = 20;




~        asm("push %1;  push %2; call foobar; movl %%eax, %0;"
~                : "=r" (x)              //the output variables
~                : "r" (&bar), "r" (&foo)        //the input varialbes
~                : "%eax"  );    //the registers we dirty up );

~        printf("foobar returned %d\nfoo.y = %d\tbar.y = %d\n", x, foo.y,
bar.y);
~        return 0;
}
- --
Georgi Ivanov
System Administrator
Aii Data Processing
IT Department

http://6lyokavitza.org
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============================================================================
A mail-list of Linux Users Group - Bulgaria (bulgarian linuxers).
http://www.linux-bulgaria.org - Hosted by Internet Group Ltd. - Stara Zagora
To unsubscribe: http://www.linux-bulgaria.org/public/mail_list.html
============================================================================