'Ret instruction' presentation slideshows

Chapter 4 Subprograms

Chapter 4 Subprograms. 1. Outline. Indirect addressing Simple Subprogram Example The Stack The CALL and RET Instructions Calling Conventions Multi-Module Programs Interfacing Assembly Reentrant and Recursive Subprograms. Indirect addressing.

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Advanced Buffer Overflow Methods

Advanced Buffer Overflow Methods. Itzik Kotler [izik@tty64.org]. VA Patch / Linux raises the bar. Causes certain parts of a process virtual address space to be different for each invocation of the process.

679 views • 45 slides

Chapter 12 8085 Interrupts

Chapter 12 8085 Interrupts. Interrupts. Interrupt is a process where an external device can get the attention of the microprocessor. The process starts from the I/O device The process is asynchronous . Classification of Interrupts Interrupts can be classified into two types:

2.26k views • 44 slides

EEL 3801

EEL 3801. Part IV The Assembler. OFFSET Operator. Returns address of variable used as operand. Actually, it represents the offset from the beginning of the segment. The destination operand must be a 16-bit register.

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Machine control instruction

Machine control instruction . HLT : Halt The instruction HLT causes the processor to enter halt state The CPU stops fetching &executing of the instruction. The CPU can be brought out of the halt state with the following events Interrupt signal on INTR pin Interrupt signal on NMI pin

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Stack operations, Applications and defining procedures

Stack operations, Applications and defining procedures. Stack Operations If you were to stack ten dinner plates on top of each other, you would be creating a stack. A stack is called LIFO structure , because the last value put into the stack is always the first value taken out.

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Subroutines and the Stack

Subroutines and the Stack. Source : http:// www.edsim51.com/8051Notes/8051/subroutines.html. Acall & Lcall. ACALL allows you to jump to a subroutine within the same 2K page. LCALL allows you to jump to a subroutine anywhere in the 64K code space.

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ICS51 Introductory Computer Organization

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