2進数を8ビットで表したときに、下位4・・・に関する記事
質問
2進数を8ビットで表したときに、下位4ビットを0000にする方法は？？という問題が分かりません。 どなたか教えてください。 ちなみに答えはF0でANDらしいです。
回答
1AND1=1 0AND1=0 0AND0=0 1AND0=0 というわけで１でも０でもAND0をすれば0になり、AND1すると元のままだからです。 したがって0にしたい下位は0000、変えない上位は1111 AND F0です。
出典：Yahoo!知恵袋
おすすめリンク
- http://www.nalvage.net/cat16/
- http://www.planning-uk.com/cat4/page2
- http://www.pattoaltobelice.com/cat17/page9
- http://www.pattoaltobelice.com/cat17/page2
- http://www.planning-uk.com/cat22/page5
- http://www.georgiehale.com/cat14/page6
- http://www.ssi-ch.info/cat9/page4
- http://www.georgiehale.com/cat23/page10
- http://www.familyservicesj.com/cat16/
- http://www.nalvage.net/cat14/page5
- http://www.pattoaltobelice.com/cat23/page10
- http://www.planning-uk.com/cat18/page4
- http://www.darrengeffre.com/cat1/
- http://www.georgiehale.com/cat2/page10
- http://www.pattoaltobelice.com/cat11/page7
- http://www.georgiehale.com/cat22/page5
- http://www.boxturtlemexican.com/cat23/
- http://www.darrengeffre.com/cat14/page1
- http://www.familyservicesj.com/cat19/page10
- http://www.darrengeffre.com/cat13/page3
- http://www.boxturtlemexican.com/cat10/page3
- http://www.nalvage.net/cat23/page5
- http://www.mikakoivuniemi.com/cat20/
- http://www.dream-ireland.com/cat23/page10
- http://www.mikakoivuniemi.com/cat10/page10
- http://www.planning-uk.com/cat2/page3
- http://www.darrengeffre.com/cat20/page9
- http://www.darrengeffre.com/cat18/page6
- http://www.boxturtlemexican.com/cat10/page8
- http://www.nalvage.net/cat4/page2
- http://www.georgiehale.com/cat3/page9
- http://www.georgiehale.com/cat21/page1
- http://www.nalvage.net/cat8/page5
- http://www.ssi-ch.info/cat13/page10
- http://www.georgiehale.com/cat9/page4
- http://www.planning-uk.com/cat5/page7
- http://www.planning-uk.com/cat12/
- http://www.planning-uk.com/cat5/page5
- http://www.mikakoivuniemi.com/cat21/page3
- http://www.familyservicesj.com/cat19/page2
- http://www.boxturtlemexican.com/cat21/page6
- http://www.familyservicesj.com/cat13/page7
- http://www.darrengeffre.com/cat18/page1
- http://www.familyservicesj.com/cat20/page7
- http://www.georgiehale.com/cat1/page7
- http://www.ssi-ch.info/cat4/page6
- http://www.familyservicesj.com/cat3/page5
- http://www.darrengeffre.com/cat23/page8
- http://www.boxturtlemexican.com/cat7/
- http://www.nalvage.net/cat23/
- http://www.ssi-ch.info/cat17/page10
- http://www.darrengeffre.com/cat7/page7
- http://www.georgiehale.com/cat10/page10
- http://www.nalvage.net/cat14/
- http://www.pattoaltobelice.com/cat13/page3
- http://www.nalvage.net/cat5/page5
- http://www.nalvage.net/cat1/page9
- http://www.darrengeffre.com/cat8/page4
- http://www.familyservicesj.com/cat18/page6
- http://www.dream-ireland.com/cat5/page2
- http://www.nalvage.net/cat22/page3
- http://www.darrengeffre.com/cat21/page6
- http://www.nalvage.net/cat13/page7
- http://www.familyservicesj.com/cat22/
- http://www.nalvage.net/cat20/page3
- http://www.georgiehale.com/cat4/page10
- http://www.nalvage.net/cat2/
- http://www.pattoaltobelice.com/cat22/page10
- http://www.pattoaltobelice.com/cat4/page8
- http://www.pattoaltobelice.com/cat7/page4
- http://www.nalvage.net/cat11/page1
- http://www.nalvage.net/cat11/page9
- http://www.nalvage.net/cat20/
- http://www.mikakoivuniemi.com/cat18/page4
- http://www.familyservicesj.com/cat15/page5
- http://www.familyservicesj.com/cat11/page6
- http://www.familyservicesj.com/cat12/
- http://www.dream-ireland.com/cat16/page1
- http://www.nalvage.net/cat11/page2
- http://www.dream-ireland.com/cat8/
- http://www.mikakoivuniemi.com/cat17/page6
- http://www.familyservicesj.com/cat4/page5
- http://www.georgiehale.com/cat19/page6
- http://www.familyservicesj.com/cat5/page8
- http://www.georgiehale.com/cat5/page1
- http://www.pattoaltobelice.com/cat21/page4
- http://www.ssi-ch.info/cat17/page2
- http://www.georgiehale.com/cat16/page3
- http://www.ssi-ch.info/cat15/page2
- http://www.georgiehale.com/cat17/page7
- http://www.georgiehale.com/cat18/page4
- http://www.pattoaltobelice.com/cat22/page2
- http://www.pattoaltobelice.com/cat10/
- http://www.familyservicesj.com/cat9/page6
- http://www.planning-uk.com/cat16/
- http://www.dream-ireland.com/cat12/page9
- http://www.georgiehale.com/cat15/page2
- http://www.pattoaltobelice.com/cat1/page7
- http://www.pattoaltobelice.com/cat19/page10
- http://www.nalvage.net/cat17/page6