Architecture

ADDU

Add Unsigned

ADDU

 

31

26 25

21 20

16 15

11 10

6 5

0

 

 

SPECIAL

 

rs

 

 

rt

 

rd

 

0

 

ADDU

 

 

 

 

 

 

 

 

 

 

 

 

 

000000

 

 

 

 

 

 

 

 

00000

 

100001

 

 

6

5

 

 

5

 

5

 

5

 

6

 

Format :

ADDU rd, rs, rt

Description :

Adds the contents of general-purpose registers rs and rt and puts the result in general-purpose register rd. The only difference from ADD is that ADDU cannot cause an overflow exception.

Operation :

T:GPR[rd] GPR[rs] + GPR[rt]

Exceptions :

None

105

Page 116
Image 116
Toshiba TX39 user manual Addu