Interrupt-microprocessor, Assembly Language

Interrupt

When the CPU detects an interrupt signal, it stops activity of current and jumps to a special routine, known an interrupt handler. This handler then detects why the interrupt occurred and takes the suitable action. When the handler is over executing this action, it jumps back to the interrupted procedure.

Various levels or "types" of interrupts are supported, from 0 to 255 range. Each type has a booked memory location, known an interrupt vector. The interrupt vector points to the suitable interrupt handler. When 2 or more interrupts occur at the same time, the CPU utilize a priority system The 256 priority levels supported by the Intel 8086-processors may be split into 3 categories:

  • Internal Hardware-Interrupts
  • External Hardware-Interrupts
  • Software Interrupts

 

Posted Date: 10/10/2012 8:08:26 AM | Location : United States







Related Discussions:- Interrupt-microprocessor, Assignment Help, Ask Question on Interrupt-microprocessor, Get Answer, Expert's Help, Interrupt-microprocessor Discussions

Write discussion on Interrupt-microprocessor
Your posts are moderated
Related Questions
Typical link to modems for synchronous and asynchronous transmissions are shown in Figure. With regard to the synchronous connections it is consider that the timing is controlled

Control Transfer or Branching Instruction Control transfer instructions transfer the flow of execution of the program to a new address specified in the instruction indirectly o

OR: Logical OR: The OR instruction carries out the OR operation in the similar way as described in case of the AND operation. The restriction on source and destination operands ar

AAD stand for what??

Example : Write a program to move the contents of the memory location 0500H to BX and also to register CX. Add immediate byte 05H to the data residing in memory location, whose ad

I have two homework assignments due in 10 hours for the x86 processor assembly language

8086 Minimum mode System and Timing In a minimum mode 8086 system, the microprocessor 8086 is operated in minimum mode by strapping its MN/MX pin to logic 1.All the control si

#question. counters using 8051.

Tabular comparison for µ PS' Parameters Tables (a) and (b) list the characteristic of Intel microprocessor. Table(a):   Table(b): It has a 64 bit da

CBW: Convert Signed Byte to Word: This instruction converts a signed byte to a signed word. In other terms, it copies the sign bit of a byte to be converted to all of the bits in