1. Libraries in Assembly
6/10/2019
TUC-N dr. Emil CEBUC

2. Outline What is a library Available operations Example Common errors
6/10/2019
TUC-N dr. Emil CEBUC

3. What is a library A library is a collection of object files, modules
The .asm source code is already assembled
that are gathered together in a .lib file with aid of a librarian TLIB or LIB
After all modules are in a library they are used during link edition by TLINK or LINK to generate the executable file
6/10/2019
TUC-N dr. Emil CEBUC

4. TLIB operations + add modulename to the library
Syntax: TLIB libname [/C] [/E] commands, listfile
libname library file pathname
commands sequence of operations to be performed (optional)
listfile file name for listing file (optional)
A command is of the form: <symbol>modulename, where <symbol> is:
add modulename to the library
remove modulename from the library
* extract modulename without removing it
-+ or update modulename in library
-* or *- extract modulename and remove it
/C case-sensitive library
/E create extended dictionary
6/10/2019
TUC-N dr. Emil CEBUC

5. Example tasm delayprc ; obtain object file
tlib mylib +-delayprc ; update library
tasm dmain3 ;main procedure
tlink /t dmain3,dmain3,mymap,mylib
dmain3 object file
dmain3 com file
mymap map file ; contains info about segments
mylib my library
6/10/2019
TUC-N dr. Emil CEBUC

6. Common Errors Modify procedure and Forget to update library
Type mismatch in the two modules
6/10/2019
TUC-N dr. Emil CEBUC