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ADD  -  Add Instruction


The ADD instruction adds the second value to the first register.
This command has 3 parts, Instruction, Register, then either a Register, Immediate value or a memory address.

Assembly
Sample		 Description   16 bit Machine
  Code
ADD AL, 0x30;  8 bit immediate to AL Register  04 30
ADD CL, 0x30;  8 bit immediate to 8 bit Register   80 C1 30
ADD AX, 0x30;  8 bit immediate to AX Register   83 C0 30
ADD AX, 0x3030;  16 bit immediate to AX Register   05 30 30
ADD CX, 0x30;  8 bit immediate to 16 bit Register  83 C1 30
ADD CX, 0x3030;  16 bit immediate to a Register  81 C1 30 30
ADD [BX], 0x30;  8 bit immediate to memory address  83 07 30
ADD [BX], 0x3030;  16 bit immediate to memory address  81 07 30 30
ADD [BX], AX;  16 bit Register to memory address  11 07
ADD [BX+2], 0x30;  8 bit immediate to memory address
;   with offset 		  83 47 02 30
ADD [BX+2], 0x3030;  16 bit immediate to memory address
;   with offset 		  81 47 02 30 30
ADD AX, [BX];  memory address to 16 bit Register  03 07
ADD [BX+2], AX;  16 bit Register to memory
;  address with offset 		  01 47 02
ADD AX, [BX+2];  Memory address with offset
;   to 16 bit Register 		  03 47 02
ADD AL, CL;  8 bit Register to 8 bit Register  02 C1
ADD CL, AL;  8 bit Register to 8 bit Register  00 C1
ADD AX, CX;  16 bit Register to 16 bit Register  03 C1
ADD CX, AX;  16 bit Register to 16 bit Register  01 C1