IBM XT 5160 Technical Reference page 342

JNS
=
Jump on Not Sign
I
01111001
I
disp
LOOP
=
Loop CX Times
I
11100010
I
dis p
LOOPZ/LOOPE
=
Loop while Zero/Equal
I
11100001
I
disp
LOOPNZ/LOOPNE
=
Loop while Not Zero/Not Equal
I
11100000
J~_d_i_S_P~~~~~~~~~~~~~~~~
JCXZ
=
Jump on CX Zero
I
11100011
I
disp
Instruction Set 6-19