IBM System/360

Multiply (Long)
NMDR 2c RR Rl,R2 Multiply opr 1 by opr 2 Spec Unchanged
(FPR)
(FPR) Exp Oflo
Product: prenormalizes the opr's and post-
Exp Uflo
normalizes the intermediate product.
(If all fraction digits (14) = 0: the product
sign and char are made zero. )
(The intermediate product fraction is
truncated before left-shifting. )
Multiply (Short) NME
7C RX Rl, D2(X2, B2)
Multiply opr 1 by opr 2 Adr Unchanged
(FPR)
(FPR) Spec
Product: prenormalizes the opr's and post- Exp Oflo
normalizes the intermediate product. Exp Uflo
(If all fra.:ti0r1 digitt:. {14) - V. Lhe 1Ji:'0Uur..:L
sign and char are made zero.)
(The intermediate product fraction is
truncated before left-shifting.)
(The 2 low-order fraction digits of the
product always = zero. )
Multiply (Short)
NMER
3C RR Rl,R2 Multiply opr 1 by opr 2 Spec
Unchanged
(FPR)
(FPR) Exp Oflo
Product:
prenormalizes the opr's and post- Exp Uflo
normalizes the intermediate product.
(H all fraction digits (14) =- 0:
the product
sign and char are made zero. )
(The intermediate product fraction is
truncated before left-shifting. )
OR 0
56 RX Rl, D2(X2, B2)
The ORed sum of both opr's into opr 1 Adr 0 Result - 0
Spec 1 Result f 0
OR oc D6
SS
Dl(L, Bl), D2(B2) The ORed sum of both opr's into opr 1
Prat
0
Result - o
(Left to right byte by byte)
Adr 1 Result f 0
(Max number of bytes ORed: 256)