Encoding:

RR

11101

rx

ZEH

001

CNVT

10001

5

3

3

5

Format: 

ZEH rx

MIPS16e

Zero-Extend Halfword

Purpose:

Zero-Extend Halfword

Zero-extend least significant halford in register rx.

Description: 

GPR[rx] = zero_extend(GPR[rx]15..0);

The least significant halford of GPR rx is zero-extended and the value written back to rx.

Restrictions:

None

Operation: 

temp = GPR[Xlat(rx)]
GPR[Xlat(rx)] = 0 || temp15..0

Exceptions:

None

Programming Notes:

None