TAILIEUCHUNG - Lecture Computer organization and assembly language - Lecture 22: Arithmetic Instructions: Shift, Rotate, Multi and Division

In this lecture, students will be able to understand: In this lecture, students will be able to understand: Computer organization, data representation, integer arithmetic, binary representation, floating point representation, machine instruction characteristics, instruction cycles, types of operands, pentium and power PC data types, microporessor bus structure, address, data, control buses and registers. | CSC 221 Computer Organization and Assembly Language Lecture 22: Arithmetic Instructions: Shift, Rotate, Multi. and Division Lecture 21: Review ASSEMBLY IMPLEMENTATION OF: Bit Test Instruction Copies bit n from an operand into the Carry flag Syntax: BT bitBase, n Conditional LOOP Instructions LOOPZ and LOOPE LOOPZ/LOOPE destination Logic: ECX ECX – 1 if ECX > 0 and ZF=1, jump to destination LOOPNZ and LOOPNE LOOPZ/LOOPE destination Logic: ECX ECX – 1 if ECX > 0 and ZF=0, jump to destination Lecture 21: Review ASSEMBLY IMPLEMENTATION OF: Block Structures Block-Structured IF Statements Compound Expressions with AND Compound Expressions with OR WHILE Loops REPEAT Loops (cont.) Lecture Outline Shift and Rotate Instructions Logical Shifts and Arithmetic Shifts SHL and SHR Instruction SAL and SAR Instructions ROL and ROR Instruction RCL and RCR Instructions Signed Overflow SHLD/SHRD Instructions Shift and Rotate Applications Lecture Outline Multiplication and Division Instructions MUL .

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