fslw       rd rs1 rs2 rs3 26..25=2 14..12=1 6..2=0x0E 1..0=3
fsrw       rd rs1 rs2 rs3 26..25=2 14..12=5 6..2=0x0E 1..0=3
fsriw      rd rs1 rs3 26..25=2 shamtw 14..12=5 6..2=0x06 1..0=3
fsri       rd rs1 rs3 26=1 shamt 14..12=5 6..2=0x04 1..0=3