== GBZ80 instructions ==
=== 16-bit Arithmetic group ===
{| class="wikitable" style="white-space: nowrap;"
|-
! Instruction !! Opcode !! NOPs !! Z !! N !! H !! C !! Effect !! Description
|-
| inc pp || 00pp0011 || 2 || - || - || - || - || pp += 1 || Increment
|-
| dec pp || 00pp1011 || 2 || - || - || - || - || pp -= 1 || Decrement
|-
| add hl,pp || 00pp1001 || 2 || - || 0 || + || + || hl += pp ||rowspan=2|Add
|-
| add sp,e || 11101000 eeeeeeee || 4 || 0 || 0 || + || + || sp += e
|}
=== 8-bit ALU group ===