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#ifndef _ASM_CRIS_ARCH_SYSTEM_H
#define _ASM_CRIS_ARCH_SYSTEM_H
/* Read the CPU version register. */
static inline unsigned long rdvr(void)
{
unsigned char vr;
__asm__ __volatile__ ("move $vr, %0" : "=rm" (vr));
return vr;
}
#define cris_machine_name "crisv32"
/* Read the user-mode stack pointer. */
static inline unsigned long rdusp(void)
{
unsigned long usp;
__asm__ __volatile__ ("move $usp, %0" : "=rm" (usp));
return usp;
}
/* Read the current stack pointer. */
static inline unsigned long rdsp(void)
{
unsigned long sp;
__asm__ __volatile__ ("move.d $sp, %0" : "=rm" (sp));
return sp;
}
/* Write the user-mode stack pointer. */
#define wrusp(usp) __asm__ __volatile__ ("move %0, $usp" : : "rm" (usp))
#define nop() __asm__ __volatile__ ("nop");
#define xchg(ptr,x) \
((__typeof__(*(ptr)))__xchg((unsigned long) (x),(ptr),sizeof(*(ptr))))
#define tas(ptr) (xchg((ptr),1))
struct __xchg_dummy { unsigned long a[100]; };
#define __xg(x) ((struct __xchg_dummy *)(x))
#endif /* _ASM_CRIS_ARCH_SYSTEM_H */
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