for example i manually investigated possible formats of V_MOV_B32 command for SRC0 parameter -
last 9 bits of V_MOV_B32 -
0 1000 0000 - insert 0 into vdst
0 1111 1111 - insert 4B value
0 0xxx xxxx - get from sgpr#
1 xxxx xxxx - get from vgpr#
but i haven't found such exact specification for SRC0 parameter of V_MOV_B32 in any ISA manual from AMD, no difference for "nothern islands", "sea islands" or other.
may be anywhere exists other sources but i dont know where. may be anybody knows where i should seek for it.