Introduction - If you have any usage issues, please Google them yourself
This program used to search from ES: 1000 100H length starting area, the existence of a given sub-string, in which sub-string stored in the order DS: 1100 Start of area, respectively DI, SI, point to them . If the search in the DS: 1111 Office Use 44 (" yes" homonym), can not find, then complete 55 (" no" homophonic). In this process, DS and ES the same. In this procedure, we assume that the sub-string to search for a length of 3 characters can set. Of course, you can change the BX to change the length of the substring search