Changes
Z80
,/* Block group */
|-
! Instruction !! Opcode !! NOPs !! Cycles !! S !! Z !! 5 !! H !! 3 !! P !! N !! C !! Effect !! Description
|-
| ldi || 11101101 10100000 || 5 || 16 (4,4,3,5) || - || - || X || 0 || X || C || 0 || - || tmp := (hl), (de) := tmp, de += 1, hl += 1,
|-
| lddr || 11101101 10111000 || 6/5 || 21/16 (4,4,3,5,5)/(4,4,3,5) || - || - || X || 0 || X || C || 0 || - || ldd, if bc <> 0 then pc -= 2 || Load and Decrement, Repeat
|-
| cpi || 11101101 10100001 || 4 || 16 (4,4,3,5)|| + || + || X || + || X || C || 1 || - || tmp := a - (hl) => flags, bc -= 1, hl += 1,
f5 := [tmp - hf].1, f3 = [tmp - hf].3
|| Compare and Increment
|-
| cpd || 11101101 10101001 || 4 || 16 (4,4,3,5) || + || + || X || + || X || C || 1 || - || tmp := a - (hl) => flags, bc -= 1, hl -= 1,
f5 := [tmp - hf].1, f3 = [tmp - hf].3
|| Compare and Decrement
|-
| cpir || 11101101 10110001 || 6/4 || 21/16 (4,4,3,5,5)/(4,4,3,5) || + || + || X || + || X || C || 1 || - || cpi, if bc <> 0 and nz then pc -= 2 || Compare and Increment, Repeat
|-
| cpdr || 11101101 10111001 || 6/4 || 21/16 (4,4,3,5,5)/(4,4,3,5) || + || + || X || + || X || C || 1 || - || cpd, if bc <> 0 and nz then pc -= 2 || Compare and Decrement, Repeat
|-
| ini || 11101101 10100010 || 5 || 16 (4,5,4,3) || + || + || + || X || + || X || X || X || tmp := ((c)), (hl) := tmp, hl += 1,
