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INTO : Interrupt on Overflow:-
It is executed, when the overflow flag OF is set. The new contents of IP and CS register are taken from the address 0000:0000 as described in INT type instruction. It is equal to a Type 4 interrupt instruction.
JMP : Unconditional lump:-
This instruction transfers the control unconditionally of execution to the specified address by using an 8-bit or 16-bit displacement (intra segment relative, long or short) or CS : IP (intersegment direct far). Flags are not affected by this instruction. Corresponding to the three technique of specifying jump addresses, the JUMP instruction has following formats.
what is sahf nstrucions
INC: Increment : - This instruction increments the contents of the particular memory or register location by the value 1. All the condition code flags are affected except the carry
Interrupt System Based on Multiple 8259As A multiple 8259A interrupt system is diagrammed in given figure in this figure data bus drivers are not indicated, but they could be i
init_lcd ;(this initialises a 2 row lcd) bcf TRISA,0 ;PORTA bit 0 as an output (lcd RS pin) bcf TRISA,1 ;PORTA bit 1
Project Overview In this series of projects you will write a compiler for a small subset of Pascal. In this assignment, you will start writing the syntax analysis and code gen
Linking a program The DOS linking program LINK.EXE links the different object modules of function library routines and source program to produce an integrated executable code o
Description: LC3 allows input from keyboard and output to display on the screen. This lab will exercise the input/output capability using LC-3 Assembly language. Procedure
Declare 1 constant. This can be done just below the prototype section. Put the following divider above the constant section. ;************************ Constants ****************
ASSUME: Assume Logical Segment Name:- The ASSUME directive which is used to inform the assembler, the specified names of the logical segments to be consider for different segme
There are 3 kinds of OCWs. The command word OCWI is utilized for masking the interrupt requests; when the mask bit corresponding to an interrupt request is value 1, then the requ
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