Procedures see example on page 143 of textbook page

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Unformatted text preview: ersion). in Spring 2014, Feb 10 . . . Spring ELEC 5200-001/6200-001 Lecture 4 20 Linker System program. Inputs: Program and procedure libraries, Inputs: all in machine code. all Output: Executable machine code. Linker functions: – Links the machine code of procedures from a Links library. library. – Sets memory addresses of data variables for Sets procedures. procedures. – Sets procedure addresses in the calling Sets program code. program Spring 2014, Feb 10 . . . Spring ELEC 5200-001/6200-001 Lecture 4 21 Loader System program Inputs: Machine code and data from disc Output: Set up program and data in Output: memory memory Loader functions: – Read executable code and data from disc to Read computer memory computer – Initialize registers and set stack pointer to first Initialize free location free – Transfer control to a start-up routine that calls Transfer start-up the main routine of the program the Spring 2014, Feb 10 . . . Spring ELEC 5200-001/6200-001 Lecture 4 22 Recursive and...
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