8086/8088
鎸囦护绯荤粺璁板繂琛?/p>
鏁版嵁瀵勫瓨鍣ㄥ垎涓?/p>
:
AH&AL
锛?/p>
AX(accumulator)
锛?/p>
绱姞瀵勫瓨鍣紝甯哥敤浜庤繍绠?/p>
;
鍦ㄤ箻闄ょ瓑鎸囦护涓寚瀹氱敤鏉ュ瓨鏀炬搷
浣滄暟
,
鍙﹀
,
鎵�鏈夌殑
I/O
鎸囦护閮戒娇鐢ㄨ繖涓�瀵勫瓨鍣ㄤ笌澶栫晫璁惧浼犻�佹暟鎹?/p>
.
BH&BL
锛?/p>
BX(base)
锛?/p>
鍩哄潃瀵勫瓨鍣紝甯哥敤浜庡湴鍧�绱㈠紩锛?/p>
CH&CL
锛?/p>
CX(count)
锛?/p>
璁℃暟瀵勫瓨鍣紝甯哥敤浜庤鏁帮紱甯哥敤浜庝繚瀛樿绠楀�?/p>
,
濡傚湪绉讳綅鎸囦护
,
寰幆
(loop)
鍜屼覆澶勭悊鎸囦护涓敤浣滈殣鍚殑璁℃暟鍣?/p>
.
DH&DL
锛?/p>
DX(data)
锛?/p>
鏁版嵁瀵勫瓨鍣紝甯哥敤浜庢暟鎹紶閫掋�?/p>
浠栦滑鐨勭壒鐐规槸
,
杩?/p>
4
涓?/p>
16
浣嶇殑瀵?/p>
瀛樺櫒鍙互鍒嗕负楂?/p>
8
浣?/p>
: AH, BH, CH, DH.
浠ュ強浣庡叓浣嶏細
AL,BL,CL,DL
銆傝繖
2
缁?/p>
8
浣嶅瘎瀛樺櫒鍙互鍒嗗埆
瀵诲潃锛屽苟鍗曠嫭浣跨敤銆?/p>
鍙︿竴缁勬槸鎸囬拡瀵勫瓨鍣ㄥ拰鍙樺潃瀵勫瓨鍣紝鍖呮嫭锛?/p>
SP
锛?/p>
Stack Pointer
锛?/p>
锛?/p>
鍫嗘爤鎸囬拡锛屼笌
SS
閰嶅悎浣跨敤锛屽彲鎸囧悜鐩墠鐨勫爢鏍堜綅缃紱
BP
锛?/p>
Base Pointer
锛?/p>
锛?/p>
鍩哄潃鎸囬拡瀵勫瓨鍣紝鍙敤浣?/p>
SS
鐨勪竴涓浉瀵瑰熀鍧�浣嶇疆锛?/p>
SI
锛?/p>
Source Index
锛?/p>
锛?/p>
婧愬彉鍧�瀵勫瓨鍣ㄥ彲鐢ㄦ潵瀛樻斁鐩稿浜?/p>
DS
娈典箣婧愬彉鍧�鎸囬拡锛?/p>
DI
锛?/p>
Destination Index
锛?/p>
锛?/p>
鐩殑鍙樺潃瀵勫瓨鍣紝鍙敤鏉ュ瓨鏀剧浉瀵逛簬
ES
娈典箣鐩殑鍙樺潃鎸囬拡銆?/p>
鎸囦护鎸囬拡
IP(Instruction Pointer)
鏍囧織瀵勫瓨鍣?/p>
FR(Flag Register)
OF(overflow flag)
DF(direction flag)
CF(carrier flag)
PF(parity flag)
AF(auxiliary flag)
ZF(zero flag)
SF(sign flag)
IF(interrupt flag)
TF(trap flag)
娈靛瘎瀛樺櫒
(Segment Register)
涓轰簡杩愮敤鎵�鏈夌殑鍐呭瓨绌洪棿锛?/p>
8086
璁惧畾浜嗗洓涓瀵勫瓨鍣紝涓撻棬鐢ㄦ潵淇濆瓨娈靛湴鍧�锛?/p>
CS
锛?/p>
Code Segment
锛?/p>
锛?/p>
浠ｇ爜娈靛瘎瀛樺櫒锛?/p>
DS
锛?/p>
Data Segment
锛?/p>
锛?/p>
鏁版嵁娈靛瘎瀛樺櫒锛?/p>
SS
锛?/p>
Stack Segment
锛?/p>
锛?/p>
鍫嗘爤娈?/p>
瀵勫瓨鍣紱