X86 instruction memory address

Addressing Instruction Operands Summary​​ Effective address of operand contained in a register. For 32-bit addressing, all 32-bit registers can be used. Square fileslib. What instruction set does x86 use? The x86 architecture is a variable instruction length, primarily "CISC" design with emphasis on backward compatibility. The instruction set is not typical CISC, however, but basically an extended version of the simple eight-bit 8008 and 8080 architectures . For the lea (load effective address) instruction, the source operand is a memory location (using an addressing mode from above) and it copies the calculated Common Instructions Mov And Lea Function Call Stack
What is the memory address of an operand in an instruction? Memory operands are specified either by the name of a variable or by a register that contains the address of a variable . A variable name implies the address of a variable and instructs the computer to reference the contents of memory at that address.
Each instruction is typically an opcode (what to do) and one or more Operands may be registers, immediate values or memory locations.