天气预报 > 其他 > 何谓多重中断如何保证它的实现
何谓多重中断如何保证它的实现
更新时间: 2020-08-16 00:00:00  

多重中断,CPU在响应处理中断过程中,允许响应处理更高级别的中断请求,这种方式称为多重中断。 实现方法,在中断服务程序的起始部分用一段程序来保存现场,送新屏蔽字以屏蔽同级别和低级别的中断请求,然后开中断,这样CPU就可响应更高级别的中断请求,实现多重中断。

关键词: 何谓 多重 中断 如何 保证 实现

何谓多重中断如何保证它的实现相关经验

天气预报

最新推荐

页面:/news/view-279502/ | 耗时:0.0824 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=279502 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=279502 LIMIT 0,1
select * from tbl_Articles_sphinx where id=279502 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1076095,1069389,1084445,1065928,1057064,1114460,1094683,1081881,916438,1063517,1042658,1069729,1050367,993145,1049048,1049440,1077240,1066828,1079426,1101849,1063329,1069253,1083113,1094053,1070534,1082310,1049030,1094387,1041559,1070092) ORDER BY field (ArticleID,1076095,1069389,1084445,1065928,1057064,1114460,1094683,1081881,916438,1063517,1042658,1069729,1050367,993145,1049048,1049440,1077240,1066828,1079426,1101849,1063329,1069253,1083113,1094053,1070534,1082310,1049030,1094387,1041559,1070092)