gonzui: mtkernel_3/include/tk/sysdepend/cpu/core/armv7a/syslib.h

    1: /*
    2:  *----------------------------------------------------------------------
    3:  *    micro T-Kernel 3.00.05
    4:  *
    5:  *    Copyright (C) 2006-2021 by Ken Sakamura.
    6:  *    This software is distributed under the T-License 2.2.
    7:  *----------------------------------------------------------------------
    8:  *
    9:  *    Released by TRON Forum(http://www.tron.org) at 2021/11.
   10:  *
   11:  *----------------------------------------------------------------------
   12:  */
   13: 
   14: /*
   15:  *      syslib.h
   16:  *
   17:  *      micro T-Kernel System Library  (ARMv7-A core depended)
   18:  */
   19: 
   20: #ifndef __TK_SYSLIB_DEPEND_CORE_H__
   21: #define __TK_SYSLIB_DEPEND_CORE_H__
   22: 
   23: #include <tk/errno.h>
   24: #include <sys/sysdef.h>
   25: 
   26: /*----------------------------------------------------------------------*/
   27: /*
   28:  * CPU interrupt control for ARMv7-A.
   29:  *      'intsts' is the value of CPSR.I.
   30:  *      disint()  Disable interrupt (IRQ).
   31:  *      enaint()  Enable interrupt (IRQ).
   32:  */
   33: 
   34: IMPORT UW disint( void );
   35: IMPORT void enaint( UW intsts );
   36: 
   37: #define DI(intsts)      ( (intsts) = (UINT)disint() )
   38: #define EI(intsts)      ( enaint((UW)intsts) )
   39: #define isDI(intsts)    ( (intsts) != 0 )
   40: 
   41: #endif /* __TK_SYSLIB_DEPEND_CORE_H__ */