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？
/*--------------------------------------------------------------------------
- @  w$ E6 H; J  eINTRINS.H

! i9 v7 e0 O0 {  ~Intrinsic functions for C51.
Copyright (c) 1988-2010 Keil Elektronik GmbH and ARM Germany GmbH
All rights reserved.
) S6 b; ?# b) N- i: `--------------------------------------------------------------------------*/

#ifndef __INTRINS_H__
# p4 g! l3 L0 X) u5 ~#define __INTRINS_H__

#pragma SAVE

# c, H7 ]- x: B$ s$ }- V$ K#if defined (__CX2__)
#pragma FUNCTIONS(STATIC)
/* intrinsic functions are reentrant, but need static attribute */
- }* x6 }6 G+ {# ~- q; R#endif
6 s! l9 ~! n4 ?, W' p1 ^* {7 z8 t
- y/ k2 J3 M0 \  Q( |extern void          _nop_     (void);
extern bit           _testbit_ (bit);
extern unsigned char _cror_    (unsigned char, unsigned char);
extern unsigned int  _iror_    (unsigned int,  unsigned char);
. Y7 u6 h: v! x& b3 B3 c+ x! yextern unsigned long _lror_    (unsigned long, unsigned char);
  R  N  r1 @% p8 J- E4 }; gextern unsigned char _crol_    (unsigned char, unsigned char);
extern unsigned int  _irol_    (unsigned int,  unsigned char);
' ~- l3 T! x6 o+ w' }9 n+ s& K8 A/ C1 wextern unsigned long _lrol_    (unsigned long, unsigned char);
0 E0 y! i7 ~$ }( C; w- F0 Fextern unsigned char _chkfloat_(float);
' c) t1 e, A- U3 {#if defined (__CX2__)
extern int           abs       (int);
extern void          _illop_   (void);
: O7 @2 I+ C6 D$ F#endif
. Z/ P* S- C. @#if !defined (__CX2__)
& d) y6 f1 `$ N# Gextern void          _push_    (unsigned char _sfr);
1 S2 k: x# r/ [, Q3 n( jextern void          _pop_     (unsigned char _sfr);
#endif
8 e* [+ }# T+ @1 y" Q, T1 |
#pragma RESTORE

+ B. \# c2 _4 t" Y#endif
/ p/ T& _* A; N2 q

scott88

3 v1 d& G  o" S7 P- f不用改， _irol_    (unsigned int,  unsigned char);这个就行了

DunklopS15

用这个_lrol_，就可以对long进行操作了