Increment Decrement Instructions

How to decode increment and decrement instructions from binary
Opcode format
76543210
 
00XXD01116-bit
 
00r10D8-bit
 
(IX+d) or (IY+d)
11Z11101DD or FD prefix
0011010D
d
 
IX or IY
11Z11101DD or FD prefix
0010D011
7nn0
158
Registers
Registerr
B000
C001
D010
E011
H100
L101
A111
XX Register
InstructionXX
BC00
DE01
HL10
A11
D direction
DirectionD
INC0
DEC1
Z
RegisterZ
IX0
IY1

Last modified November 16, 2021: Optimise decoding pages (f08ceb7)