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Assembly For X86

Assembly For X86. Chapter 5 Inline Assembly. C & Assembly. ניתן לשלב קוד C וקוד אסמבלי בתוכנית אחת באמצעות מספר קבצים (כל קובץ בשפה מסויימת) באמצעות הוראות למהדר: asm mov ax,bx asm{ mov ax,bx inc cx }. int add(int a,int b) { asm { mov ax,a add ax,b } }.

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Assembly For X86

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  1. Assembly For X86 Chapter 5 Inline Assembly

  2. C & Assembly • ניתן לשלב קוד C וקוד אסמבלי בתוכנית אחת • באמצעות מספר קבצים (כל קובץ בשפה מסויימת) • באמצעות הוראות למהדר: • asm mov ax,bx • asm{ mov ax,bx inc cx }

  3. int add(int a,int b) { asm { mov ax,a add ax,b } }

  4. int max(int a,int b) { asm{ mov ax,a cmp ax,b jg end mov ax,b } end: }

  5. int sum(int num[],int size) { asm { mov si,num mov cx,size mov ax,0 } cnt: asm { add ax,[si] add si,2 loop cnt } }

  6. void swap(int *x,int *y) { asm { mov si,x mov di,y mov al,[si] mov ah,[di] mov [si],ah mov [di],al } }

  7. void mem_set(char *str,char c,int size) { asm{ mov al,c mov bx,str mov cx,size } LP1: asm{ mov [bx],al inc bx dec cx jnz LP1 } }

  8. int count_char(char *str,char c,int size) { asm { mov al,0 mov bx,str mov cx,size } check: asm { mov ah,[bx] cmp ah,c jne cont inc al } cont: asm { inc bx loop check mov ah,0 } }

  9. int check_sort(int n[],int size) { asm { mov si,n mov cx,size dec cx } chk: asm { mov dx,[si] cmp dx,[si+2] jg bad add si,2 loop chk jmp good } bad: asm { mov ax,0 jmp end } good: asm mov ax,0ffh end: }

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