IBM AT 5170 Technical Reference page 376

Register with RegisterlMemory
OOlllOOw
I
mod reg rim
Immediate with RegisterlMemory
lOOOOOsw
I
modlll rim data
data if sw
=
01
Immediate with Accumulator
0001 I law data
data if w
=
I
NEG
=
Change Sign
I
lll101lw
I
modOll rim
AAA
=
ASCII Adjust for Add
I
00 110111
DEC
=
Decimal Adjust for Add
I
00100111
AAS
=
ASCII Adjust for Subtract
00111111
DAS
=
Decimal Adjust for Subtract
00110111
MUL
=
Multiply (Unsigned)
I
11l101lw
I
modlOO rim
IMUL
=
Integer Mtiltiply (Signed)
I
1111011w
I
modl0l rim
6-8 Instruction Set