某单元在数据段中,已知DS=1000H偏移地址为1200H,则它的物理地址为()。
A.12100H
B.11200H
C.13000H
D.10000H
A.12100H
B.11200H
C.13000H
D.10000H
12h blk2 db 21h,43h,65h,87h,90h count equ $-blk2 sum0 db 6 dup (00h) data ends code segment assume cs:code, ds:data start: mov ax, data mov ds, ax lea si, blk1 lea bx,blk2 lea di,sum0 mov cx, count clc aa:mov al, [si] adc al, [bx] daa mov [di], al inc si inc bx inc di loop aa mov al, 00h adc al, 00h mov [di], al mov ah,4ch int 21h code ends end start
30H, 32H COUNT EQU ($-ASCBUF)/2 ;$为当前地址指针 BCDBUF DB COUNT DUP() DATA ENDS CODE SEGMENT ASSUME CS: CODE, DS:DATA, ES:DATA START: MOV AX, DATA MOV DS, AX MOV ES, AX ;设置附加段与数据段完全重叠 CLD MOV SI, OFFSET ASCBUF MOV DI, OFFSET BCDBUF MOV CX, COUNT AA: LODSB AND AL, 0FH MOV BL, AL LODSB PUSH CX MOV CL, 4 SHL AL, CL POP CX OR AL, BL STOSB LOOP AA MOV AH, 4CH INT 21H CODE ENDS END START
A.dgvData.DataSource=ds;dgvData.DataMember=ds.Tables["table1"];
B.dgvData.DataMember=ds;
C.dgvData.DataSource=newDataView(ds.Tables["table1"]);
D.dgvData.DataSource=ds.Tables["table1"];dgvData.DataMember=ds;
协议数据单元(PDU)在哪一层被称为段(segment)?()
A) 物理层
B) 数据链路层
C) 网络层
D) 传输层
E) 应用层