单片机intrins.h文件如何修改?可以循环移动4个字节的数据

Clap3hame3

intrins.h 这个文件，_crol_ 只能操作unsigned char 的数据，我想循环移动4个字节的数据，请问一下这个intrins.h 文件怎么改呢？还要改别的文件吗？
/*--------------------------------------------------------------------------
INTRINS.H

Intrinsic functions for C51.
Copyright (c) 1988-2010 Keil Elektronik GmbH and ARM Germany GmbH
All rights reserved.
--------------------------------------------------------------------------*/

4 v& b; y; ?0 D! ~- b#ifndef __INTRINS_H__
  }6 k+ J. x0 V) P% w#define __INTRINS_H__

#pragma SAVE
* S) d& I! d6 B
; U9 ~+ [' S) x7 K( L#if defined (__CX2__)
1 ]) ^$ O% t0 y3 ?( h- E8 X#pragma FUNCTIONS(STATIC)
/* intrinsic functions are reentrant, but need static attribute */
# u5 l/ M8 o4 V2 N' h6 x#endif

$ W( ]# G* s& i4 P+ Aextern void          _nop_     (void);
extern bit           _testbit_ (bit);
extern unsigned char _cror_    (unsigned char, unsigned char);
extern unsigned int  _iror_    (unsigned int,  unsigned char);
extern unsigned long _lror_    (unsigned long, unsigned char);
' L' q& |& o1 [; c6 Pextern unsigned char _crol_    (unsigned char, unsigned char);
extern unsigned int  _irol_    (unsigned int,  unsigned char);
9 G6 |# K# [! o1 `0 Qextern unsigned long _lrol_    (unsigned long, unsigned char);
extern unsigned char _chkfloat_(float);
* J0 F- T7 ~- \4 G! B4 L0 k#if defined (__CX2__)
' D3 Q) p! e% L, V: n) xextern int           abs       (int);
extern void          _illop_   (void);
#endif
#if !defined (__CX2__)
" F2 T; D3 W. E0 R" Pextern void          _push_    (unsigned char _sfr);
extern void          _pop_     (unsigned char _sfr);
#endif

* M0 W" q7 x0 E0 S$ _: ?- R#pragma RESTORE

#endif

scott88

不用改， _irol_    (unsigned int,  unsigned char);这个就行了

DunklopS15

0 _( S2 C1 a0 A3 X) P2 L1 \用这个_lrol_，就可以对long进行操作了