We can do multiplication of two 8-bit numbers without using DAD and XCHG command. Program- Explanation - Registers A, H, L, C, B are used for general purpose. 1. LXI H, 2050 will load the HL pair register with the address 2050 of memory location. 2. MOV B, M copies the content of memory into register B. 3. The 8051 has 4 kilobyte of inbuilt ROM. It is otherwise called program memory. Usually program-code is stored in ROM. To store program into ROM , programmer is needed. If more area is required in ROM, an external ROM may be connected. Maximum of 64kb ROM memory can be used. ON CHIP ROM The 8051 has 128 byte of RAM as inbuilt . The inforrm.tion in this document is subje<;t to ~ngewithout notK:e. Intel Corpor