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Offset Length Description 0 2 An INT 20h instruction is stored here 2 2 Program ending address 4 1 Unused, reserved by DOS 5 5 Call to DOS function.

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Presentation on theme: "Offset Length Description 0 2 An INT 20h instruction is stored here 2 2 Program ending address 4 1 Unused, reserved by DOS 5 5 Call to DOS function."— Presentation transcript:

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4 Offset Length Description 0 2 An INT 20h instruction is stored here 2 2 Program ending address 4 1 Unused, reserved by DOS 5 5 Call to DOS function dispatcher 0Ah 4 Address of program termination code 0Eh 4 Address of break handler routine 12h 4 Address of critical error handler routine 16h 22 Reserved for use by DOS 2Ch 2 Segment address of environment area 2Eh 34 Reserved by DOS 50h 3 INT 21h, RETF instructions 53h 9 Reserved by DOS 5Ch 16 Default FCB #1 6Ch 20 Default FCB #2 80h 1 Length of command line string 81h 127 Command line string

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