The three buttons on the left hand side of the toolbar correspond to the menu items of the File menu. You can use the New , Load , and Save buttons to reset, load and save configuration files for the Macro Assembler.
The Help button and the Context Help button allow you to open the Help file or the Context Help.
When pressing the buttons above, the mouse cursor changes to a question mark beside an arrow. The Assembler opens Help for the next item on which you click. You can get specific Help on menus, toolbar buttons, or on the window area by using this Context Help.
The editable combo box contains a list of the last commands which were executed. After a command line has been selected or entered in this combo box, click the Assemble button to execute this command. The Stop button becomes enabled whenever some file is assembled. When the Stop button is pressed, the assembler stops the assembly process.
Pressing the Options Dialog Box button opens the Option Settings dialog box.
Pressing the Message Dialog Box button opens the Message Settings dialog box.
Pressing the Clear button clears the assembler window's content area.