Compilation stages

if there are no errors tokens are converted into object code. Code is optimised at this stage

• Lexical analysis

• syntax analysis

• semantic analysis

• code generation

the program is checked to ensure it conforms to the syntax rules. for example an error would appear if a semi-colon was missing

• Lexical analysis

• syntax analysis

• semantic analysis

• code generation

the program is converted from a sequence of characters into a series of tokens by removing white space at this stage

• Lexical analysis

• syntax analysis

• semantic analysis

• code generation

Varibles are checked that they are used properly and the that operations such as (+ - / and *) have been correctly used at this stage

• Lexical analysis

• syntax analysis

• semantic analysis

• code generation

THere are 4 main stages of comilation. Code generation is

• Comments and unneeded spaces are removed. Remaining code is turned in to tokend and. A symbol table is created which holds the addresses of variables, labels and subroutines.

• Tokens are checked to see if they match the spelling and grammar expected. This is done by parsing each token to determine if it uses the correct syntax for the programming language. If syntax errors are found, error messages are produced.

• Variables are checked to ensure that they have been properly declared, used and are the correct data type. Operations are checked to ensure that they are legal for the type of variable being used, e.g. you would not try to store the result of a division operation as an integer.

• Machine code is generated. Code optimisation to run as fast as possible. redundant data is removed.

THere are 4 main stages of comilation. Semantic analysis is

• Comments and unneeded spaces are removed. Remaining code is turned in to tokend and. A symbol table is created which holds the addresses of variables, labels and subroutines.

• Tokens are checked to see if they match the spelling and grammar expected. This is done by parsing each token to determine if it uses the correct syntax for the programming language. If syntax errors are found, error messages are produced.

• Variables are checked to ensure that they have been properly declared, used and are the correct data type. Operations are checked to ensure that they are legal for the type of variable being used, e.g. you would not try to store the result of a division operation as an integer.

• Machine code is generated. Code optimisation to run as fast as possible. redundant data is removed.

THere are 4 main stages of comilation. Syntax Analysis is

• Comments and unneeded spaces are removed. Remaining code is turned in to tokend and. A symbol table is created which holds the addresses of variables, labels and subroutines.

• Tokens are checked to see if they match the spelling and grammar expected. This is done by parsing each token to determine if it uses the correct syntax for the programming language. If syntax errors are found, error messages are produced.

• Variables are checked to ensure that they have been properly declared, used and are the correct data type. Operations are checked to ensure that they are legal for the type of variable being used, e.g. you would not try to store the result of a division operation as an integer.

• Machine code is generated. Code optimisation to run as fast as possible. redundant data is removed.

THere are 4 main stages of comilation. Lexical Analysis is

• Comments and unneeded spaces are removed. Remaining code is turned in to tokend and. A symbol table is created which holds the addresses of variables, labels and subroutines.

• Tokens are checked to see if they match the spelling and grammar expected. This is done by parsing each token to determine if it uses the correct syntax for the programming language. If syntax errors are found, error messages are produced.

• Variables are checked to ensure that they have been properly declared, used and are the correct data type. Operations are checked to ensure that they are legal for the type of variable being used, e.g. you would not try to store the result of a division operation as an integer.

• Machine code is generated. Code optimisation to run as fast as possible. redundant data is removed.