asmhello.asm

汇编实战大全.请按书中的附录 A设置好系统的环境变量

;***************************
;文件：AsmHello.asm        *
;功能：动态VxD的例子汇编版 *
;***************************
    .386p
    include C:\98DDK\inc\win98\vmm.inc		;头文件
    include C:\98DDK\inc\win98\shell.inc
    include C:\98DDK\inc\win98\debug.inc

Declare_Virtual_Device		\
				ASMHELLO, 	\
				1, 0, 		\
				ASMHELLO_control,	\
    			Undefined_Device_ID, Undefined_Init_Order

;消息分派
Begin_Control_Dispatch	ASMHELLO
    Control_Dispatch Sys_Dynamic_Device_Init, OnDynInitAsm, cCall
    Control_Dispatch Sys_Dynamic_Device_Exit, OnDynExitAsm, cCall
    Control_Dispatch W32_DeviceIOControl,	  OnDynCtlAsm,	cCall
End_Control_Dispatch	ASMHELLO

;可分页数据段
VxD_PAGEABLE_DATA_SEG 
    Caption	db "VxD Say Hello",0 
    VxDInit db "VxD动态加载——汇编程序版本",0 
VxD_PAGEABLE_DATA_ENDS 

;可分页代码段
VxD_PAGEABLE_CODE_SEG 
BeginProc SayHello			;显示对话框
	mov ecx, OFFSET32 VxDInit
    VMMCall Get_sys_vm_handle 
    mov eax,MB_OK+MB_ICONEXCLAMATION 
    mov edi,OFFSET32 Caption
    xor esi,esi 
    xor edx,edx 
    VxDCall SHELL_Message 
    ret 
EndProc SayHello 

BeginProc OnDynInitAsm		;VxD初始化
	call SayHello
	mov  eax,1
	ret
EndProc OnDynInitAsm

BeginProc OnDynExitAsm		;VxD退出
	mov eax,1
	ret
EndProc OnDynExitAsm

BeginProc OnDynCtlAsm		;IO Control
	xor eax,eax
	ret
EndProc OnDynCtlAsm

VxD_PAGEABLE_CODE_ENDS 

    end