IBM 5170 Technical Reference page 327

AAS
=
ASCII Adjust for Subtract
ASCII Adjust for Subtract
I
00111111
DAS
=
Decimal Adjust for Subtract
Decimal Adjust for Subtract
I
00110111
MUL
=
Multiply (Unsigned)
Multiply
11111011w
I
mod100
rim
IMUL
=
Integer Multiply (Signed)
Integer Multiply
11111011w
I
mod101
rim
IIMUL
=
Integer Immediate Multiply (Signed)
Integer Immediate Multiply
I
01101051
I
mod reg
rim
I
Data
I
Data if 5
=
0
DIV
=
Divide (Unsigned)
Divide
I
1111011 w
I
mod110
rim
IDIV
=
Integer Divide (Signed)
Integer Divide
11111011w
I
mod111
rim
AAM
=
ASCII Adjust for Multiply
ASCII Adjust for Multiply
I
11010100
I
00001010
AAD
=
ASCII Adjust for Divide
Instruction Set 6-9