Cbw-cwd-arithmetic instruction-microprocessor, Assembly Language

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 the higher byte of the result word. The byte to be converted might be in the AL. The result will be stored in the AX. It does not affect any flag.

CWD: Convert Signed Word to Double Word: This instruction copies the sign bit of the AX register to all the bits of the DX register. This operation is to be done before signed division. It does not  make affect  on any flag.

 

Posted Date: 10/12/2012 2:08:01 AM | Location : United States







Related Discussions:- Cbw-cwd-arithmetic instruction-microprocessor, Assignment Help, Ask Question on Cbw-cwd-arithmetic instruction-microprocessor, Get Answer, Expert's Help, Cbw-cwd-arithmetic instruction-microprocessor Discussions

Write discussion on Cbw-cwd-arithmetic instruction-microprocessor
Your posts are moderated
Related Questions
#include"lcd.asm"       ; assembly file is included for displaying lcd characters Main: PORTA EQU 0xF80  ; PORTS PORTB EQU 0xF81 PORTC EQU 0xF82 PORTD EQU 0xF83 R

Trying to convert small programs from C to 8086 assembly language using emu 8086 emulator. I converted to low level C, but struggling with converting to the Assembly language.

Interrupt System Based on Single 8259 A The 8259A is contained in a 28-pin dual-in-line package that need only a + 5-V supply voltage.  Its organization is shown in given figur

CAN U GIVE BRIEF THEORY


do you have experts that know 4 digit 7_Seg dispaly

The Alpha : The development of the Alpha chip start in the year 1988 The new chip used 64 bit technology, let users to pack  more  complexity  into  their  programs  than  exis

DMA Hardware (8237 DMAC) :   1)Processor contain HOLD/HOLD Acknowledge lines to interact with 8237 o   DMAC can achieve control of ISA bus by asserting HOLD o   P

Flowchart for the sequence of 8251 Whether the control, mode or sync character register is selected depends on the accessing sequence.  A flowchart of the sequencing is given i

code, Assembly Language How to print strings in Right Triangle form?