8086 Interrupt Mechanism

Sep 26, 2012

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. NMI (Non-Maskable Interrupts)- Only one (Power Failure - int 2)- Interrupt Handle Code is addressed at 0000:0008

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8086 Interrupt Mechanism

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Interrupt Services

Interrupt Services Application Programs/OS Shell ( command.com ) int 21h, and others int 10h, and others (IO.SYS) DOS Services ( msdos.sys ) BIOS ( EEPROM ) Hardware (x86, Chipset and Peripherals) BIOS - Basic Input Output System DOS - Disk Operating System Which Way is Best ?

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Interrupt Controller

Interrupt Controller. Introduction to 8259. Poll Method. Interrupt Method. Features of 8259. 8086, 8088 Compatible MCS-80 , MCS-85 Compatible Eight-Level Priority Controller Expandable to 64 Levels Programmable Interrupt Modes Individual Request Mask Capability

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Interrupt

Interrupt. Interrupts of 8051. Introduction 8051 Interrupt organization Processing Interrupts Program Design Using Interrupts Timer Interrupts Serial Port Interrupts External Interrupts Interrupt Timings. Interrupt.

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8086 Interrupts

8086 Interrupts. Interrupt. Normal prog execution is interrupted by Some external signal, or A special instruction in the prog. In response to an interrupt, the mp stops executing its normal prog & calls a procedure which ‘services’ the interrupt.

658 views • 16 slides

8086 [2]

8086 [2]. Ahad. Internal! . External ?. 8086 vs 8088. Only external bus of 8088 is 8bit. 8_bit Data Bus 20_bit Address. 16_bit Data Bus 20_bit Address. 8088. 8086. Pin configuration:. 8086/8088 Busses. Address Bus 20 address lines so a 2 20 byte address space.

653 views • 36 slides

Interrupt

Interrupt. Interrupt. an asynchronous signal indicating the need for attention hardware interrupt/software interrupt call “interrupt service routine”(interrupt handler, interrupt routine) interrupt source/interrupt vector/interrupt priority. 생활 속에 인터럽트. Gom player. cell phone. 영화 감상. 1

758 views • 38 slides

Intel 8086

Intel 8086. Registers. (16-bit) registers: Data reg. – to hold data for an op. Address reg – to hold addr of an instruction or data Status reg / FLAGS reg. 1. Data reg - 4. AX BX CX DX High byte – H Low byte – L AX  AH + AL. AX – Accumulator reg.

558 views • 29 slides

Interrupt Handling

Interrupt Handling. Ted Baker  Andy Wang CIS 4930 / COP 5641. Interrupts. Prevent CPUs from busy waiting A signal that the hardware can send when it wants the CPU’s attention Need to pay attention to concurrency issues. Topics. Interrupt handling Registration of handlers

817 views • 69 slides

Microprocessor Systems Winter 2009 Chapter 11 Interrupt Interface of 8088/8086 Microprocessors

Microprocessor Systems Winter 2009 Chapter 11 Interrupt Interface of 8088/8086 Microprocessors. @ DR. Awni Itradat, 2009. Lecture Outline. 11.1-11.12 All sections are included….see page 576. @ DR. Awni Itradat, 2009. User defined. 256 interrupts are supported by 8088/8086. They are

825 views • 65 slides

Interrupt

Interrupt. Interrupt – to break the flow of speech or action of (someone) by saying or doing something (Longman dictionary). Examples. When your phone rings during a lecture, what will happen? When you are studying then your cell phone rings – what will you do?

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8086 emulation

8086 emulation. Using Virtual-8086 mode to execute real-mode procedures in a protected-mode environment. Features of real-mode. At power-up the Pentium begins executing in real-address mode (memory addressing does not require use of descriptor tables) CPU privilege restrictions are not imposed

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8086 Interrupts and Interrupt Applications

8086 Interrupts and Interrupt Applications. The meaning of ‘interrupts’ is to break the sequence of operation

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Interrupt

Interrupt. Interrupt – to break the flow of speech or action of (someone) by saying or doing something (Longman dictionary). Examples. When your phone rings during a lecture, what will happen ? When you are studying then your cell phone rings – what will you do?

917 views • 69 slides

Interrupt

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11.1 Interrupt Mechanism, Type, and Priority

11.1 Interrupt Mechanism, Type, and Priority. Interrupts provide a mechanism for quickly changing program environment. Transfer of program control is initiated by the occurrence of either an event internal to the microprocessor or an event in its external hardware.

267 views • 25 slides

Interrupt Handling Advanced Interrupt Controller (AIC)

Interrupt Handling Advanced Interrupt Controller (AIC). ARM Core Interrupt Sources. The ARM processor has only 2 Interrupt lines IRQ (Normal Interrupt) Standard interrupt request FIQ (Fast Interrupt) Used for fast interrupt handling Private registers Initialization in C-startup

193 views • 18 slides

Interrupt Handling

Interrupt Handling. Linux Kernel Programming CIS 4930/COP 5641. Topics. Overview Registration of handlers Interrupt sharing Interaction with hardware Limitations of handlers Bottom halves. Interrupts. Provides a mechanism other than busy waiting to be notified of an event

391 views • 36 slides

Interrupt

Interrupt. Interrupt – to break the flow of speech or action of (someone) by saying or doing something (Longman dictionary). Examples. When your phone rings during a lecture, what will happen ? When you are studying then your cell phone rings – what will you do?

752 views • 70 slides

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