diff --git a/testing/README.md b/testing/README.md index 634b16a48d82fb826ba8a84217ece483fe7e4399..98277907770c7109581b014c61cda444eeab5b1f 100644 --- a/testing/README.md +++ b/testing/README.md @@ -2,9 +2,23 @@ ## 1. introduction ### - 1.1 purpose -- 1.1.1 basic explanation - +- 1.1.1 basic purpose + - This product is a kind of calculator that performs various operations related to fixed point number. + - For fixed-point arithmetic, c langauge's math library and type conversion are required. + +### 1.2 concept +- 1.1.2 basic concept + - To operate several calculation for fixed-point numebr type casting is essential. + - Correct type conversion is very important in order to accurately calculate and avoid missing bits. +- 1.1.3 concept of fixed-point number + -  + - a. data types in computer langauge always have fixed length + - b. in fixed point decimal point position of specific number should be fixed + - c. mean of s3132 + - s(sign) / 31(interger) / 32(decimal point) + - first s bit is used for number's sign (+ or -) + - second 31bits are used to represent interger part + - third 32bits are used to represent decimal -### 1.3 concept ## 2. overall description ### - 2.1 product functions \ No newline at end of file