Encoding:

MSA

011110

0010

df/n

ws

rd

ELM

011001

6

4

6

5

5

6

Format: 

COPY_S.df

Element Copy to GPR Signed

COPY_S.B rd,ws[n]

MSA

Element Copy to GPR Signed

COPY_S.H rd,ws[n]

MSA

Element Copy to GPR Signed

COPY_S.W rd,ws[n]

MSA

Element Copy to GPR Signed

COPY_S.D rd,ws[n]

MIPS64, MSA

Element Copy to GPR Signed

Purpose:

Element Copy to GPR Signed

Element value sign extended and copied to GPR.

Description: 

rd = signed(ws[n])

Sign-extend element n of vector ws and copy the result to GPR rd.

Restrictions:

No data-dependent exceptions are possible.

Operation: 

COPY_S.B
   GPR[rd] = sign_extend(WR[ws]8n+7..8n, 64)
COPY_S.H
   GPR[rd] = sign_extend(WR[ws]16n+15..16n, 64)
COPY_S.W
   GPR[rd] = sign_extend(WR[ws]32n+31..32n, 64)
COPY_S.D
   GPR[rd] = WR[ws]64n+63..64n
function sign_extend(tt, n)
   return (ttn-1)GPRLEN-n || ttn-1..0
endfunction sign_extend

Exceptions:

Reserved Instruction Exception, MSA Disabled Exception.