in_cksum_i386.h File Reference

#include <stdio.h>

Include dependency graph for in_cksum_i386.h:

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Macros
#define	ADDCARRY(x)   if ((x) > 0xffff) (x) -= 0xffff
#define	REDUCE   {sum = (sum & 0xffff) + (sum >> 16); ADDCARRY(sum);}
#define	ADD(n)
#define	ADDC(n)
#define	LOAD(n)
#define	MOP

Functions
int	in_cksum (struct mbuf *m, int len)

Macro Definition Documentation

ADD

#define ADD

(

n

)

Value:

__asm__ volatile \
    ("addl " #n "(%2), %0" : "=r" (sum) : "0" (sum), "r" (w))

ADDC

#define ADDC

(

n

)

Value:

__asm__ volatile \
    ("adcl " #n "(%2), %0" : "=r" (sum) : "0" (sum), "r" (w))

LOAD

#define LOAD

(

n

)

Value:

__asm__ volatile \
     ("movb " #n "(%1), %0" : "=q" (junk) : "r" (w))

MOP

#define MOP

Value:

__asm__ volatile \
    ("adcl         $0, %0" : "=r" (sum) : "0" (sum))