{"resolved":true,"match_type":"uuid","source_type":"original_book","book_id":"38270854-596f-4a26-8183-db8c968c6020","title":"编码 隐匿在计算机软硬件背后的语言","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787121181184","requested_by":"printed_page","book":{"source_type":"original_book","book_id":"38270854-596f-4a26-8183-db8c968c6020","id":"38270854-596f-4a26-8183-db8c968c6020","uuid":"38270854-596f-4a26-8183-db8c968c6020","title":"编码 隐匿在计算机软硬件背后的语言","normalized_title":"编码隐匿在计算机软硬件背后的语言","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787121181184","isbns":["9787121181184","0123456789","6044921875","3039331000","0000000000","0000000000000"],"parsed":true,"ai_readable":true,"document_type":"book","page_count":438,"navigation_url":"https://workshop.closeclaw.top/ai/book/38270854-596f-4a26-8183-db8c968c6020","title_url":"https://workshop.closeclaw.top/ai/title/%E7%BC%96%E7%A0%81%20%E9%9A%90%E5%8C%BF%E5%9C%A8%E8%AE%A1%E7%AE%97%E6%9C%BA%E8%BD%AF%E7%A1%AC%E4%BB%B6%E8%83%8C%E5%90%8E%E7%9A%84%E8%AF%AD%E8%A8%80","fixed_page_url_template":"https://workshop.closeclaw.top/ai/book/38270854-596f-4a26-8183-db8c968c6020/page/{printed_page}","path_api_url_template":"https://workshop.closeclaw.top/api/ai/book/38270854-596f-4a26-8183-db8c968c6020/page/{printed_page}","read_url":"https://workshop.closeclaw.top/api/ai/read/38270854-596f-4a26-8183-db8c968c6020","page_url":"https://workshop.closeclaw.top/api/ai/books/38270854-596f-4a26-8183-db8c968c6020/page","search_url":"https://workshop.closeclaw.top/api/ai/books/38270854-596f-4a26-8183-db8c968c6020/search"},"page":{"printed_page":218,"pdf_page":234,"physical_index":234,"physical_index_base":0,"printed_page_status":"recognized","page_sha256":"158f2ed1ba4b9207ca3f218b2b56ad251f6cc034c0eb2285d7929c1644a89cda"},"chapter":"编码隐匿在计算机软硬件背后的语言","content":"当然，这并不是迄今发明的最易于使用的计算设备。要使用它，首先要闭合清零开关，这样做的目的是，清除锁存器中的内容并把16位计数器的输出置为0000h.然后合RAM控制面板的控制端开关。现在你可以从地址0000h开始输入一组你想要相加的18位数。如果有100个数，那么它什们将被存放在0000h\\~0063h的地址空间中(也应该把RAM阵列中未使用的单元设置为 00h)。然后闭合RAM控制面板的控制端开关（这样控制面板就不再控制RAM阵列了)，同时断开清零开关。做完了这些，我们可以静静地坐下来，观察灯泡显示运算结果。\n\n让我们来看一下它是怎样工作的：当清零开关第一次断开时，RAM阵列的地址输入是0000h。RAM阵列的该地址中存放的8位数值是加法器的输入数据。加法器的另一个输入数据为00h，因为此时锁存器也已经清零了振荡器提供的时钟信号个可以在0，1之间快速切换的信号。清零开关断开后，当时钟信号由0跳变为1时，将有两件事同时发生：锁存器保存加法器的计算结果，同时16位计数器增1，指向RAM阵列的下一个地址单元。清零开关断开之后，时钟信号第一次从0跳变为1时，锁存器就将第一个数值保存下来，同时计数器增加为0001h；当时钟发生第二次跳变时，锁存器保存之前两个数的求和结果，同时计数器增加\n\n编码——隱匿在计算机软硬件背后的语言\n\n218","previous_page":217,"next_page":219}