Logical Group Of Instruction

By

ANA

ORA

XRA

ANI

ORI

XRI

CMP

CPI 

RLC

RRC

RAL

RAR

CMA

CMC

STC

 

Comments

Post a Comment

Popular posts from this blog

LDAX

By
Syntax: LDAX Rhp Where  Rhp is higher order register  the pair. (HL, BC or DE) Byte: 1byte Addressing Mode: Register Indirect Addressing Working:  for execution of this instruction, microprocessor will allocate first byte for opcode and the operand is register which don't need allocation. Example: LDAX B where [C]= 50H [B] = 20 H [2050H]= 88H After execution of LDAX B [A]= 88 H
Read more

STA Instruction

By
Syntax: STA 16-bit Where  16-bit is for memory location. Byte: 3byte Addressing Mode: Direct Addressing Working:  for execution of this instruction, microprocessor will allocate first byte for opcode, second byte for lower order address and third byte for higher order address. After execution, the content of Accumulator will be moved to the given address. Example: STA 2000H   where [A]= A0 H After execution of STA 2000H [2000H]= A0 H
Read more