# RV128I additions to RV64I

addid   rd rs1 imm12            14..12=0 6..2=0x16 1..0=3
sllid   rd rs1 31..26=0  shamtd 14..12=1 6..2=0x16 1..0=3
srlid   rd rs1 31..26=0  shamtd 14..12=5 6..2=0x16 1..0=3
sraid   rd rs1 31..26=16 shamtd 14..12=5 6..2=0x16 1..0=3

addd    rd rs1 rs2 31..25=0  14..12=0 6..2=0x1E 1..0=3
subd    rd rs1 rs2 31..25=32 14..12=0 6..2=0x1E 1..0=3
slld    rd rs1 rs2 31..25=0  14..12=1 6..2=0x1E 1..0=3
srld    rd rs1 rs2 31..25=0  14..12=5 6..2=0x1E 1..0=3
srad    rd rs1 rs2 31..25=32 14..12=5 6..2=0x1E 1..0=3

lq      rd rs1       imm12 14..12=3 6..2=0x03 1..0=3
ldu     rd rs1       imm12 14..12=7 6..2=0x00 1..0=3

sq     imm12hi rs1 rs2 imm12lo 14..12=4 6..2=0x08 1..0=3

# RV32 and RV64 versions of these are in opcodes-pseudo
slli    rd rs1 31..27=0  shamt 14..12=1 6..2=0x04 1..0=3
srli    rd rs1 31..27=0  shamt 14..12=5 6..2=0x04 1..0=3
srai    rd rs1 31..27=8  shamt 14..12=5 6..2=0x04 1..0=3