IBM AT 5170 Technical Reference page 373

IN
=
Input From
Fixed Port
1110010w port
Variable Port
1110110w
OUT
=
Output To
Fixed Port
1110011w port
Variable Port
1110111w
XLAT
=
Translate Byte to AL
11010111
~
LEA
=
Load EA to Register
10001101
I
mod reg
rIm
LDS
=
Load Pointer to DS
11000101
I
mod reg
rIm
mod
~
11
LES
=
Load Pointer to ES
11000100
I
mod reg rIm mod
~
11
LAHF
=
Load AH with Flags
I
10011111
~
SAHF
=
Store AH with Flags
10011110
Instniction
Set
6-5