z80 dumb additions

CP  HL, DE
CP  DE, HL
CP  HL, BC
CP  DE, BC
CP  HL, IX
CP  DE, IX
CP  HL, IY
CP  DE, IY
CP  HL, word
CP  DE, word
CP  BC, word
CP  IX, word
CP  HL, (word)
CP  DE, (word)
CP  BC, (word)
CP  IX, (word)   // $DD uses SP, $FD uses IY
ADD HL, A
SUB HL, A
ADD DE, A
SUB DE, A
ADD IX, A
SUB IX, A
ADD IY, A
SUB IY, A
ADD BC, A
SUB BC, A
ADD HL, unsigned byte
SUB HL, unsigned byte
ADD DE, unsigned byte
SUB DE, unsigned byte
ADD HL, unsigned word
SUB HL, unsigned word
ADD DE, unsigned word
SUB DE, unsigned word
ADD HL, unsigned byte (word)
SUB HL, unsigned byte (word)
ADD DE, unsigned byte (word)
SUB DE, unsigned byte (word)
ADD HL, unsigned word (word)
SUB HL, unsigned word (word)
ADD DE, unsigned word (word)
SUB DE, unsigned word (word)
LD  B,(word)
LD  C,(word)
LD  D,(word)
LD  E,(word)
LD  (word),B
LD  (word),C
LD  (word),D
LD  (word),E
LD  HL, (HL)
LD  DE, (DE)
LD  BC, (BC)
LD  IX, (IX)
NEG HL
NEG DE
EX  H,  L
EX  D,  E
ADD B, byte
ADD C, byte
ADD D, byte
ADD E, byte
SUB B, byte
SUB C, byte
SUB D, byte
SUB E, byte
ADD B, (word)
ADD C, (word)
ADD D, (word)
ADD E, (word)
SUB B, (word)
SUB C, (word)
SUB D, (word)
SUB E, (word)
MUL HL, +A
MUL HL, -A
MUL HL, signed A
MUL HL, byte
MUL HL, byte (word)
MUL HL, word
MUL HL, (word)
MUL HL, DE
MUL DE, +A
MUL DE, -A
MUL DE, signed A
MUL DE, byte
MUL DE, byte (word)
MUL DE, word
MUL DE, (word)
MUL DE, HL
SLA HL
SLA DE
SLA BC
SRL HL
SRL DE
RLCA HL
RRCA HL
RLCA DE
RRCA DE
ADD DE, HL
ADD DE, BC
MUL H,  L
MUL D,  E
MUL HL, HL
MUL DE, DE
SQRT HL
SQRT DE
SQRT A
SQRT (word)
INC (word)
DEC (word)
INC (IX)
DEC (IX)
ABS A
ABS HL
ABS DE
ABS IX
DIV HL, unsigned A
DIV HL, unsigned byte
DIV HL, unsigned word
DIV HL, unsigned DE
DIV DE, unsigned A
DIV DE, unsigned byte
DIV DE, unsigned word
DIV DE, unsigned HL
SEX A, DE
SEX E, DE
REV A
REV HL
BCD A
BCD HL
MOD HL, A
SLA HL, 1
SLA HL, 2
SLA HL, 3
SLA HL, 4
SLA HL, 5
SLA HL, 6
SLA HL, 7
PACK
UNPACK
EX  A,(word)
EX  HL,(word)
EX  DE,(word)
EX  BC,(word)
EX  IX,(word)
ADD H,D L,E
SUB H,D L,E
LD  (word), (word)
JP  (here+(A*2))
JP  (word+(A*2))
DJNZ BC
DJNZ C
LD (HL--), A
LD (HL++), A
LD A, (HL--)
LD A, (HL++)
LD (DE--), A
LD (DE++), A
LD A, (DE--)
LD A, (DE++)
LD (IX--), A
LD (IX++), A
LD A, (IX--)
LD A, (IX++)
LD (IY--), A
LD (IY++), A
LD A, (IY--)
LD A, (IY++)
SLA H,L
SRL H,L
SLA A, 2
SLA A, 3
SLA A, 4
SLA A, 5
SLA A, 6
SLA A, 7
RESAVE1 - write new value of register most recently read from RAM back to RAM at same location
RESAVE2
RESAVE3
EX  DE, BC
EX  IX, IY