rng.asm

威盛 wince5.0 bsp 包 for x86 系统, 支持 VT8601 等北桥

.486p


PAGE_SIZE EQU 1000h
PAGE_ATTRIB_RW          EQU     000001100011b
PAGE_ATTRIB_RW_NOCACHE  EQU     000001111011b
PAGE_ATTRIB_RO_USER     EQU     000000100101b
PAGE_ATTRIB_RW_USER     EQU     000001100111b


_DATA SEGMENT DWORD USE32 PUBLIC 'DATA'

XSTORE EQU
        db       0Fh
        db       0Ah
        db      0C0h

BUFFER  dd      0h
        dd      0h

_DATA ENDS


        ASSUME  CS: FLAT, DS: FLAT, SS: FLAT


_TEXT SEGMENT para public 'TEXT'


;*************************************************************************;
_EnableCR4 PROC NEAR PUBLIC

.586p

   mov    ebx, CR4
   or     ebx, 00000200h
   mov    CR4, ebx
   ret
_EnableCR4 ENDP

;*************************************************************************;
_ReadCR4 PROC NEAR PUBLIC
   mov  ebx,CR4
   mov  eax,ebx
   ret
_ReadCR4 ENDP

;*************************************************************************;

_XSTORE PROC NEAR PUBLIC
   mov    al, 0
   lea    EDI, BUFFER
   mov    edx, 00000001h
   
   ;XSTORE
   db       0Fh
   db      0A7h
   db      0C0h
   
   mov eax, BUFFER
   ret
_XSTORE ENDP

;*************************************************************************;


.486p

_TEXT ENDS

        END