defs.h

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/*
# _____     ___ ____     ___ ____
#  ____|   |    ____|   |        | |____|
# |     ___|   |____ ___|    ____| |    \    PS2DEV Open Source Project.
#-----------------------------------------------------------------------
# Copyright (c) 2003 Marcus R. Brown <mrbrown@0xd6.org>
# Licenced under Academic Free License version 2.0
# Review ps2sdk README & LICENSE files for further details.
*/

 
#ifndef __DEFS_H__
#define __DEFS_H__
 
#include <types.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
#ifndef NULL
#define NULL    ((void *)0)
#endif
 
#ifndef ALIGN
#define ALIGN(x, align) (((x)+((align)-1))&~((align)-1))
#endif
 
#define PHYSADDR(a) (((u32)(a)) & 0x1fffffff)
 
#define KSEG1       0xa0000000
#define KSEG1ADDR(a)    ((__typeof__(a))(((u32)(a) & 0x1fffffff) | KSEG1))
 
#if !defined(USE_GP_REGISTER)
#define USE_GP_REGISTER 1
#endif
 
static __inline__ void SetGP(void *gp)
{
    register void *gpReg __asm__("gp");
 
    gpReg = gp;
    __asm__ __volatile__(" " ::"r"(gpReg));
}
 
extern void *_gp;
 
static __inline__ void *GetGP(void)
{
    register void *gpReg __asm__("gp");
 
    __asm__ __volatile__(" " : "=r"(gpReg));
    return gpReg;
}
 
static __inline__ void *ChangeGP(void *gp)
{
    void *OldGP;
 
    OldGP = GetGP();
    SetGP(gp);
 
    return OldGP;
}
 
#define SetModuleGP()   ChangeGP(&_gp)
 
static inline void *iop_memcpy(void *dest, const void *src, int size)
{
    u8 *d = (u8 *)dest, *s = (u8 *)src;
 
    while (size--)
        *d++ = *s++;
    return dest;
}
 
#ifdef __cplusplus
}
#endif
 
#endif /* __DEFS_H__ */