Assembly compile error

HI,

I am trying to compile a package called TMPI.  I am facing a problem with this part of the code. I am compiling this for a machine that has a athlon processor and using gcc as a compiler


tmpi_i386.h
----

#ifndef _I386_H_
#define _I386_H_

#ifdef __SMP__
#define LOCK_PREFIX "lock ; "
#else
#define LOCK_PREFIX ""
#endif

/* some hacks to defeat gcc over-optimizations */
struct __dummy { unsigned long a[100]; };
#define ADDR (*(volatile struct __dummy *)addr)

#endif

----------------

# include "tmpi_i386.h"

__inline__ int cas32(volatile int *addr, int old, int new)
{
    char ret;

    __asm__ __volatile__(LOCK_PREFIX
                         "cmpxchg %2, %1\n\t"   /* swap values if current value
                                                   is known */
                         "sete %0"              /* read success/fail from EF */
                         : "=q" (ret), "=m" (ADDR)
                         : "r" (new), "a" (old)
                                                 : "%eax" );
    return (int)ret;
}

int cas64(volatile long long *ptr, long long old, long long new);

__inline__ int casp(void * *pval, void * old, void * new)
{
        /**
         * somehow I have to decide the size of (void *)
         * during the runtime.
         */
        if (sizeof(void *)==sizeof(int))
                return cas32((int*)pval, (int)old, (int)new);
        else
                return cas64((long long *)pval, (long long)old, (long long)new);
}

__inline__ int test_and_set(volatile void *addr, int bit)
{
    int oldbit;

    __asm__ __volatile__(LOCK_PREFIX
                         "btsl %2, %1\n\t"  /* set bit, store old in CF */
                         "sbbl %0, %0"      /* oldbit -= CF */
                         : "=r" (oldbit),"=m" (ADDR)
                         : "Ir" (bit));

    return (-oldbit);
}

__inline__ int test_and_clear(volatile void *addr, int bit)
{
    int oldbit;

    __asm__ __volatile__(LOCK_PREFIX
                         "btrl %2, %1\n\t"  /* clear bit, store old in CF */
                         "sbbl %0, %0"      /* oldbit -= CF */
                         : "=r" (oldbit), "=m" (ADDR)
                         : "Ir" (bit));

    return (-oldbit);
}

__inline__ int test_and_change(volatile void *addr, int bit)
{
    int oldbit;

 __asm__ __volatile__(LOCK_PREFIX
                         "btcl %2, %1\n\t"  /* change bit, store in CF */
                         "sbbl %0, %0"      /* oldbit -= CF */
                         : "=r" (oldbit), "=m" (ADDR)
                         : "Ir" (bit));

    return (-oldbit);
}

__inline__ int anf32(volatile int *ptr, int val)
{
        int old;

        if (!val) return *ptr;

        do {
                old=*ptr;
        } while (!cas32(ptr, old, old+val));

        return old+val;
}

__inline__ int snf32(volatile int *ptr, int val)
{
        int old;

        if (!val) return *ptr;

        do {
                old=*ptr;
        } while (!cas32(ptr, old, old-val));

        return old-val;
}
__inline__ int fna32(volatile int *ptr, int val)
{
        int old;

        if (!val) return *ptr;

        do {
                old=*ptr;
        } while (!cas32(ptr, old, old+val));

        return old;
}

__inline__ int fns32(volatile int *ptr, int val)
{
        int old;

        if (!val) return *ptr;

        do {
                old=*ptr;
        } while (!cas32(ptr, old, old-val));

        return old;
}

__inline__ long long anf64(volatile long long *ptr, long long val)
{
        long long old;

        if (!val) return *ptr;

        do {
                old=*ptr;
        } while (!cas64(ptr, old, old+val));

        return old+val;
}

__inline__ int snf64(volatile long long *ptr, long long val)
{
        long long old;

        if (!val) return *ptr;

        do {
                old=*ptr;
        } while (!cas64(ptr, old, old-val));

        return old-val;
}

---------------------------

error :

cc -O -Wall -I. -D__SMP__   -c -o atomic.o atomic.c
atomic.c: In function `casp':
atomic.c:28: warning: cast from pointer to integer of different size
atomic.c:28: warning: cast from pointer to integer of different size
atomic.c: In function `cas32':
atomic.c:13: Invalid `asm' statement:
atomic.c:13: fixed or forbidden register 0 (ax) was spilled for class AREG.
atomic.c: In function `casp':
atomic.c:13: Invalid `asm' statement:
atomic.c:13: fixed or forbidden register 0 (ax) was spilled for class AREG.
atomic.c: In function `anf32':
atomic.c:13: Invalid `asm' statement:
atomic.c:13: fixed or forbidden register 0 (ax) was spilled for class AREG.
atomic.c: In function `snf32':
atomic.c:13: Invalid `asm' statement:
atomic.c:13: fixed or forbidden register 0 (ax) was spilled for class AREG.
atomic.c: In function `fna32':
atomic.c:13: Invalid `asm' statement:
atomic.c:13: fixed or forbidden register 0 (ax) was spilled for class AREG.
atomic.c: In function `fns32':
atomic.c:13: Invalid `asm' statement:
atomic.c:13: fixed or forbidden register 0 (ax) was spilled for class AREG.
make: *** [atomic.o] Error 1
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