IBM 5170 Technical Reference page 325

Reg/Memory with Register to Either
000100dw mod reg
rim
100000sw
data if sw
=
01
Immediate to Accumulator
0001010w data
I
data if w
=
1
INC
=
Increment
Register/Memory
1111111w
modOOO
rim
Register
01 000 reg
SUB
=
Subtract
Reg/Memory with Register to Either
I
001010dw mod reg
rim
Immediate from Register Memory
100000sw
mod101
rim
I
data
I
data if sw
=
01
Immediate from Accumulator
0010110w
data
I
data if w
=
1
SBB
=
Subtract with Borrow
Reg/Memory with Register to Either
I
000110dw mod reg
rim
Immediate to Register Memory
100000sw
mod011
rim
I
data -
I
data if sw
=
01
Instruction Set 6-7