0001 0000 ;Z-80 Simple Adding program 0002 0000 ;2/21/03 0003 0800 .org 0800h ;Start of RAM, program loaded here 0004 0800 DB 00 start in a,(0) ;First number from input port 0 0005 0802 47 ld b,a ;Put in register b 0006 0803 DB 01 in a,(1) ;Second number from input port 1 0007 0805 80 add a,b ;Add to first number 0008 0806 D3 00 out (0),a ;Output result to output port 0 0009 0808 18 F6 jr start ;start over. 0010 080A .end 0011 080A tasm: Number of errors = 0