arm.h

VRTX操作系统

/*************************************************************************

	Copyright (c) 1999 Mentor Graphics Corporation.


IMPORTANT - USE OF THIS SOFTWARE IS SUBJECT TO LICENSE RESTRICTIONS
CAREFULLY READ THE LICENSE AGREEMENT BEFORE USING THE SOFTWARE


*************************************************************************/
/*Revisions of ARM.H: 
* 1.1  P.Cumming   10.5.96 Undefined VMC_PROBE_INTERRUPT functions removed
* 1.2  A. Thompson 23/1/97 Pointer size macro generalised - it's not 2 on the ARM!
*/

/* disable,enable,halt,restore*/
/* ARM specific inline functions */

#include "cpu.h"

#define INTPROC void

/*
 * The following MACRO determines if an address is alligned at a
 * pointer boundary.
 */

#define POINTER_SIZE              (sizeof(void *))
#define not_pointer_aligned(addr) ((addr) % POINTER_SIZE)

extern char vmc_intr_count, *vmc_irqstk, *vmc_fiqstk;
#define vmc_thread_mode() (vmc_intr_count == 0)

#define stack_align(x) (((int) (x)) & ~3)

extern void vmc_proc_init(void);

#define		disable(x)	x = cpu_interrupt_disable()
#define         restore(x)	cpu_interrupt_restore(x)
#define         enable()	cpu_interrupt_enable()
#define	interrupt_window(ps)	cpu_interrupt_window(ps)

#define         pause()
#ifdef _MRI
#define         halt()	asm("\tillegal")
#else
/*
#define         halt()	__asm __volatile("illegal")
*/
#define         halt()	
#endif

/*
 * Stack frame of thread on thread creation
 */

#define SVCMode  0x13

struct vmc_frame{
  int cpsr;
  int r4;
  int r5;
  int r6;
  int r7;
  int r8;
  int r9;
  int r10;
  int r11;
  void (*startup_pc)(void);
  int task_arg;
  void (*return_pc)(void);
  void (*task_pc)(void *);
};