psr.h

来自「M*core开发库文件,能够大大减轻开发者的难度」· C头文件 代码 · 共 30 行

/********************************************************************
	created:	2007/04/13
	created:	13:4:2007   8:09
	filename: 	G:\DataBak\VCWorks\04.09\McoreReg\CMR.h
	author:		CryinRain & YxY
	Page:       16<->19	
	purpose:	Processor state regs
*********************************************************************/


#if !defined(_CORE_HB)
#define _CORE_HB
/************************************************************************/
/*   
   
General register:
R0---->R15
R0:		As the stack pointer;
R15:	As the subroutine back linker reg; 

if the PSR(AF)=1, S can use the shadow regs(R0'---->R15') to take place of
General regs;
R0':	As the task stack pointer;
!: U must make sure that PSR(AF)=1 before U use the shadow regs.



																	    */
/************************************************************************/
#endif //end #if !defined(_CORE_HB)