'Conditional jump' diaporamas de présentation

Chapter 3 JUMP, LOOP and CALL Instructions

Chapter 3 JUMP, LOOP and CALL Instructions. Outlines. Loop instructions Conditional jump instructions Conditions determining conditional jump Unconditional long & short jumps Calculate target addresses for jumps Subroutines Using stack in subroutines Crystal frequency vs. machine cycle

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Chapter 3 Jump, Loop, and Call Instructions

Chapter 3 Jump, Loop, and Call Instructions. Objective. ???????? 8051 ????????? control transfer ???????????? ??? control transfer ? conditional jump, unconditional jump, call subroutine. ??? 8051 ? Jump ??????????? ??? 8051 ? Call ???????????? 8051 ????? Jump ????

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Chapter 6

Chapter 6. Program Control Instruction. Introduction. program control instruction : direct the flow of a program, allow the flow to change jumps, calls, returns, interrupts, machine control instructions change in flow : CMP, TEST followed by conditional jump

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Lecture 4

Lecture 4. Assembly Language. Contents. Program Flow Control Conditional Instructions Loops Procedures. Program Flow Control. Controlling the program flow is a very important thing, this is where your program can make decisions according to certain conditions.

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Microprocessor Programming II

Microprocessor Programming II. To discuss more complicated programming techniques Flag control instructions Compare and jump Subroutines Loop and string instructions. Flag instructions. Can affect the setting of flags directly Can store value of AH into flags Can clear/set the carry

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Assembly

Assembly. תרגול 5 תכנות באסמבלי, המשך. Condition Codes. Single bit registers CF – carry flag. Unsigned overflow. ZF – zero flag. Zero result. SF – sign flag. Negative result. OF – overflow flag. Signed overflow. Relevant only for the most recent operation

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Program Control Instructions

Program Control Instructions. A Course in Microprocessor Electrical Engineering Dept. University of Indonesia. The Jump Group. Jump (JMP) allows the programmer to skip sections of a program and branch to any part of the memory for the next instruction

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Chapter Four 80x86 Instruction Set ? 6 ?

Chapter Four 80x86 Instruction Set ? 6 ?. String Instructions. The 80x86 supports twelve string instructions: movs (move string) lods (load string element into the accumulator) stos (store accumulator into string element)

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Assembly

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Flow Control Instructions

Flow Control Instructions. Transfer of Control. Flow control instructions are used to control the flow of a program. Flow control instructions can be of two types: unconditional and conditional. The JMP instruction is the only unconditional flow control instruction.

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CET 3510 - Microcomputer Systems Technology Lecture 5

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Flow Control Instructions

Flow Control Instructions. Transfer of Control. Flow control instructions are used to control the flow of a program. Flow control instructions can be of two types: unconditional and conditional. The JMP instruction is the only unconditional flow control instruction.

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Compiler Designs and Constructions

Compiler Designs and Constructions. Chapter 9: Translation Objectives: Translation Method Three Address Code Dr. Mohsen Chitsaz. Bottom-up evaluation of S-attributed:. Definitions: Syntax-directed definition with only synthesized attributes is called S-attributed Use LR Parser

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16.317 Microprocessor Systems Design I

16.317 Microprocessor Systems Design I. Instructor: Dr. Michael Geiger Fall 2013 Lecture 15 Jump and loop instructions. Lecture outline. Announcements/reminders HW 4 to be posted; due 10/16 Exam 1 regrade requests due 10/11 Review Compare instructions CMOV Set on condition

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Assembly Language

Assembly Language. Arithmetic and Logic Instructions. Arithmetic Instructions: (Addition). A. Addition : (Flags affected: A,C,O,P,S,Z) ADD AL,BL ; AL ? AL + BL , BL unchanged ADD CX,DI ; CX ? CX + DI , DI unchanged ADD AH,45H ; AH ? AH + 45H

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Computer Architecture and Assembly Language

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16.317 Microprocessor Systems Design I

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BalloonSat Mini Flight Computer

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More on logical instruction and conditional jumps

More on logical instruction and conditional jumps. parity flag The parity flag indicates whether the lowest byte of the result of a bitwise arithmetic or logical operation has an even or odd number of 1 bits.

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Logical Operators

Logical Operators . Jumps Logical Operators The different logical operators found in Java Rational Operators The different rational operators found in Java. Jumps . A jump is also known as a branch A jump is when you program skips certain steps to move on to another block of code

289 views • 8 slides