NEC uPD98502 User Manual page 471

DADDIU
31 26 25
DADDIU
0 1 1 0 0 1
6
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:
GPR [rt] ← GPR [rs] + (immediate
64 T:
Exceptions:
Reserved instruction exception (32-bit user mode/supervisor mode)
APPENDIX A MIPS III INSTRUCTION SET DETAILS
Doubleword Add Immediate Unsigned
21 20
rs rt
5 5
48
) || immediate
15
Preliminary User's Manual S15543EJ1V0UM
16 15
immediate
15...0
DADDIU
16
0
471