M21_DESC
SIG_EXPR_DECL_SINGLE(ROMA10, ROM8, M21_DESC, VPOOFF0_DESC);
SIG_EXPR_DECL_SINGLE(ROMA10, ROM16, M21_DESC, VPOOFF0_DESC);
SIG_EXPR_DECL_SINGLE(VPOG0, VPO12, M21_DESC, VPO12_DESC);
SIG_EXPR_DECL_SINGLE(VPOG0, VPO24, M21_DESC, VPO24_DESC);
SIG_EXPR_DECL_SINGLE(VPOG0, VPOOFF1, M21_DESC, VPOOFF1_DESC);