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？
/*--------------------------------------------------------------------------
; E; b& F3 p- n$ G9 XINTRINS.H
, m8 b( C5 q+ `/ y# q' M  Q4 ~
5 o4 e* n; G5 aIntrinsic functions for C51.
0 k' m% f- D0 ]( K# uCopyright (c) 1988-2010 Keil Elektronik GmbH and ARM Germany GmbH
" t. D: h& T# Z9 g: WAll rights reserved.
--------------------------------------------------------------------------*/
" `( \+ ~. ~9 ?6 }$ h$ l
& P: Y9 c& p' L  g#ifndef __INTRINS_H__
#define __INTRINS_H__
& R  x: k  J% ]* C
#pragma SAVE
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! U5 K+ D1 g' Y; a9 z7 ~9 Y; o. B#if defined (__CX2__)
9 e0 e; }: Y9 d; v6 _; `2 k#pragma FUNCTIONS(STATIC)
/* intrinsic functions are reentrant, but need static attribute */
/ B1 `* Y- e* b" b9 {5 g#endif

extern void          _nop_     (void);
! |9 S! |; O2 [, g6 w# ]% i  Yextern 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);
5 `8 K0 ]4 O. T! L5 y/ O, d3 y- sextern unsigned char _crol_    (unsigned char, unsigned char);
/ A2 L6 R6 F% L+ J3 Kextern unsigned int  _irol_    (unsigned int,  unsigned char);
extern unsigned long _lrol_    (unsigned long, unsigned char);
extern unsigned char _chkfloat_(float);
#if defined (__CX2__)
extern int           abs       (int);
extern void          _illop_   (void);
#endif
#if !defined (__CX2__)
extern void          _push_    (unsigned char _sfr);
extern void          _pop_     (unsigned char _sfr);
! P0 ?( \+ y( F/ R2 h: i* U#endif

" K+ z0 A4 W, ~) P6 o#pragma RESTORE

#endif

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# t( `; c: k8 q

scott88

% N' i% j7 k( |& X) p% ^2 U不用改， _irol_    (unsigned int,  unsigned char);这个就行了

DunklopS15

- m) k+ s+ a2 O' Q用这个_lrol_，就可以对long进行操作了