Add, Subtract, Multiply, Divide, Conditional Add, Conditional Subtract; Remainder And Modulo - Intel i960 Jx Developer's Manual

INSTRUCTION SET OVERVIEW
5.2.3.1

Add, Subtract, Multiply, Divide, Conditional Add, Conditional Subtract

These instructions perform add, subtract, multiply or divide operations on integers and ordinals:
addi
Add Integer
addo
Add Ordinal
ADD <cc> conditional add
subi Subtract Integer
subo Subtract Ordinal
SUB<cc> Conditional Subtract
muli
Multiply Integer
mulo
Multiply Ordinal
divi Divide Integer
divo Divide Ordinal
, , ,
addi ADDI<cc> subi SUBI<cc>
result is too large to fit in the 32-bit destination.
the divisor is zero.
5.2.3.2

Remainder and Modulo

These instructions divide one operand by another and retain the remainder of the operation:
remi
remainder integer
remo
remainder ordinal
modi
modulo integer
The difference between the remainder and modulo instructions lies in the sign of the result. For
and , the result has the same sign as the dividend; for
remi remo
as the divisor.
5-8
, and generate an integer-overflow fault when the
muli divi
divi and divo generate a zero-divide fault when
, the result has the same sign
modi