APPENDIX A MIPS III INSTRUCTION SET DETAILS
Preliminary Users Manual S15543EJ1V0UM 471
DADDIU Doubleword Add Immediate Unsigned DADDIU
rs

DADDIU

0 1 1 0 0 1 rt immediate

31 26 25 21 20 16 15 0
655 16
Format:
DADDIU rt, rs, immediate
Description:
The 16-bit
immediate
is sign-extended and added to the contents of general register
rs
to form the result. The
result is placed into general register
rt.
No integer overflow exception occurs under any circumstances.
The only difference between this instruction and the DADDI instruction is that DADDIU never causes an overflow
exception.
Operation:
64 T: GPR [rt] GPR [rs] + (immediate15)48 || immediate15...0
Exceptions:
Reserved instruction exception (32-bit user mode/supervisor mode)