1
绗?/p>
1
绔?/p>
璁＄畻鏈虹郴缁熸杩?/p>
1.1
銆佸浘
1.3
涓殑鐞嗘兂鏈哄櫒杩樻湁涓ゆ潯
I/O
鎸囦护锛?/p>
0011 =
浠?/p>
I/O
涓浇鍏?/p>
AC
0111 =
鎶?/p>
AC
淇濆瓨鍒?/p>
I/O
涓?/p>
鍦ㄨ繖绉嶆儏鍐典笅锛?/p>
12
浣嶅湴鍧�鏍囪瘑涓�涓壒娈婄殑澶栭儴璁惧銆傝缁欏嚭浠ヤ笅绋嬪簭鐨勬墽琛岃繃绋嬶紙鎸夌収鍥?/p>
1.4
鐨勬牸寮忥級
锛?/p>
1.
浠庤澶?/p>
5
涓浇鍏?/p>
AC
銆?/p>
2.
鍔犱笂瀛樺偍鍣ㄥ崟鍏?/p>
940
鐨勫唴瀹广�?/p>
3.
鎶?/p>
AC
淇濆瓨鍒拌澶?/p>
6
涓�?/p>
鍋囪浠庤澶?/p>
5
涓彇鍒扮殑涓嬩竴涓�间负
3940
鍗曞厓涓殑鍊间负
2
銆?/p>
绛旀锛氬瓨鍌ㄥ櫒锛?/p>
16
杩涘埗鍐呭锛?/p>
锛?/p>
300
锛?/p>
3005
锛?/p>
301
锛?/p>
5940
锛?/p>
302
锛?/p>
7006
姝ラ
1
锛?/p>
3005
锛?/p>
>IR
锛涙楠?/p>
2
锛?/p>
3
锛?/p>
>AC
姝ラ
3
锛?/p>
5940
锛?/p>
>IR
锛涙楠?/p>
4
锛?/p>
3
锛?/p>
2
锛?/p>
5
锛?/p>
>AC
姝ラ
5
锛?/p>
7006
锛?/p>
>IR
锛氭楠?/p>
6
锛?/p>
AC
锛?/p>
>
璁惧
6
1.2
銆佹湰绔犱腑鐢?/p>
6
姝ユ潵鎻忚堪鍥?/p>
1.4
涓殑绋嬪簭鎵ц鎯呭喌锛岃浣跨敤
MAR
鍜?/p>
MBR
鎵╁厖杩欎釜鎻忚堪銆?/p>
绛旀锛?/p>
1. a. PC
涓寘鍚涓�鏉℃寚浠ょ殑鍦板潃
300
锛岃鎸囦护鐨勫唴瀹硅閫佸叆
MAR
涓�?/p>
b.
鍦板潃涓?/p>
300
鐨勬寚浠ょ殑鍐呭锛堝�间负鍗佸叚杩涘埗鏁?/p>
1940
锛夎閫佸叆
MBR
锛屽苟涓?/p>
PC
澧?/p>
1
銆傝繖涓や釜姝ラ
鏄苟琛屽畬鎴愮殑銆?/p>
c. MBR
涓殑鍊艰閫佸叆鎸囦护瀵勫瓨鍣?/p>
IR
涓�?/p>
2. a.
鎸囦护瀵勫瓨鍣?/p>
IR
涓殑鍦板潃閮ㄥ垎锛?/p>
940
锛夎閫佸叆
MAR
涓�?/p>
b.
鍦板潃
940
涓殑鍊艰閫佸叆
MBR
涓�?/p>
c. MBR
涓殑鍊艰閫佸叆
AC
涓�?/p>
3. a. PC
涓殑鍊硷紙
301
锛夎閫佸叆
MAR
涓�?/p>
b.
鍦板潃涓?/p>
301
鐨勬寚浠ょ殑鍐呭锛堝�间负鍗佸叚杩涘埗鏁?/p>
5941
锛夎閫佸叆
MBR
锛屽苟涓?/p>
PC
澧?/p>
1
銆?/p>
c. MBR
涓殑鍊艰閫佸叆鎸囦护瀵勫瓨鍣?/p>
IR
涓�?/p>
4. a.
鎸囦护瀵勫瓨鍣?/p>
IR
涓殑鍦板潃閮ㄥ垎锛?/p>
941
锛夎閫佸叆
MAR
涓�?/p>
b.
鍦板潃
941
涓殑鍊艰閫佸叆
MBR
涓�?/p>
c. AC
涓互鍓嶇殑鍐呭鍜屽湴鍧�涓?/p>
941
鐨勫瓨鍌ㄥ崟鍏冧腑鐨勫唴瀹圭浉鍔狅紝缁撴灉淇濆瓨鍒?/p>
AC
涓�?/p>
5. a. PC
涓殑鍊硷紙
302
锛夎閫佸叆
MAR
涓�?/p>
b.
鍦板潃涓?/p>
302
鐨勬寚浠ょ殑鍐呭锛堝�间负鍗佸叚杩涘埗鏁?/p>
2941
锛夎閫佸叆
MBR
锛屽苟涓?/p>
PC
澧?/p>
1
銆?/p>
c. MBR
涓殑鍊艰閫佸叆鎸囦护瀵勫瓨鍣?/p>
IR
涓�?/p>
6. a.
鎸囦护瀵勫瓨鍣?/p>
IR
涓殑鍦板潃閮ㄥ垎锛?/p>
941
锛夎閫佸叆
MAR
涓�?/p>
b. AC
涓殑鍊艰閫佸叆
MBR
涓�?/p>
c. MBR
涓殑鍊艰瀛樺偍鍒板湴鍧�涓?/p>
941
鐨勫瓨鍌ㄥ崟鍏冧箣涓�?/p>
1.4
銆佸亣璁炬湁涓�涓井澶勭悊鍣ㄤ骇鐢熶竴涓?/p>
16
浣嶇殑鍦板潃锛堜緥濡傦紝鍋囪绋嬪簭璁℃暟鍣ㄥ拰鍦板潃瀵勫瓨鍣ㄩ兘鏄?/p>
16
浣嶏級骞朵笖鍏?/p>
鏈変竴涓?/p>
16
浣嶇殑鏁版嵁鎬荤嚎銆?/p>
a.
濡傛灉杩炴帴鍒颁竴涓?/p>
16
浣嶅瓨鍌ㄥ櫒涓婏紝澶勭悊鍣ㄨ兘澶熺洿鎺ヨ闂殑鏈�澶у瓨鍌ㄥ櫒鍦板潃绌洪棿涓哄灏戯紵
b.
濡傛灉杩炴帴鍒颁竴涓?/p>
8
浣嶅瓨鍌ㄥ櫒涓婏紝澶勭悊鍣ㄨ兘澶熺洿鎺ヨ闂殑鏈�澶у瓨鍌ㄥ櫒鍦板潃绌洪棿涓哄灏戯紵
c.
澶勭悊璁块棶涓�涓嫭绔嬬殑
I/O
绌洪棿闇�瑕佸摢浜涚粨鏋勭壒寰侊紵
d.
濡傛灉杈撳叆鎸囦护鍜岃緭鍑烘寚浠ゅ彲浠ヨ〃绀?/p>
8
浣?/p>
I/O
绔彛鍙凤紝杩欎釜寰鐞嗗櫒鍙互鏀寔澶氬皯
8
浣?/p>
I/O
绔彛锛?/p>
绛旀锛氬浜?/p>
(a)
鍜?/p>
(b)
涓ょ鎯呭喌锛屽井澶勭悊鍣ㄥ彲浠ョ洿鎺ヨ闂殑鏈�澶у瓨鍌ㄥ櫒鍦板潃绌洪棿涓?/p>
2
16
= 64K bytes
锛涘敮涓�鐨勫尯
鍒槸
8
浣嶅瓨鍌ㄥ櫒姣忔璁块棶浼犺緭
1
涓瓧鑺傦紝鑰?/p>
16
浣嶅瓨鍌ㄥ櫒姣忔璁块棶鍙互浼犺緭涓�涓瓧鑺傛垨鑰呬竴涓?/p>
16
浣嶇殑
瀛椼�傚浜?/p>
(c)
鎯呭喌锛岀壒娈婄殑杈撳叆鍜岃緭鍑烘寚浠ゆ槸蹇呰鐨勶紝杩欎簺鎸囦护鐨勬墽琛屼綋浼氫骇鐢熺壒娈婄殑鈥?/p>
I/O
淇″彿鈥?/p>
锛堟湁鍒簬鈥滃瓨鍌ㄥ櫒淇″彿鈥濓紝杩欎簺淇″彿鐢卞瓨鍌ㄥ櫒绫诲瀷鎸囦护鐨勬墽琛屼綋浜х敓锛夛紱鍦ㄦ渶灏忕姸鎬佷笅锛屼竴涓檮鍔?/p>
鐨勮緭鍑洪拡鑴氬皢鐢ㄦ潵浼犺緭鏂扮殑淇″彿銆傚浜?/p>
(d)
鎯呭喌锛屽畠鏀寔
2
8
= 256
涓緭鍏ュ拰
2
8
= 256
涓緭鍑哄瓧鑺傜鍙ｅ拰
鐩稿悓鏁扮洰鐨?/p>
16
浣?/p>
I/O
绔彛锛涘湪浠讳竴鎯呭喌
,
涓�涓緭鍏ュ拰涓�涓緭鍑虹鍙ｄ箣闂寸殑鍖哄埆鏄�氳繃琚墽琛岀殑杈撳叆