V21_DESC
SIG_EXPR_DECL_SINGLE(ROMA24, ROM8, V21_DESC, VPO_OFF_12);
SIG_EXPR_DECL_SINGLE(ROMA24, ROM16, V21_DESC, VPO_OFF_12);
SIG_EXPR_DECL_SINGLE(ROMA24, ROM16S, V21_DESC, VPO_OFF_12);
SIG_EXPR_LIST_DECL_SINGLE(V21, VPOR6, VPO24, V21_DESC, VPO_24_OFF);
SIG_EXPR_DECL_SINGLE(VPOR3, VPO, V21_DESC, VPO_DESC, CRT_DVO_ES_DESC);
SIG_EXPR_DECL_SINGLE(VPOR3, VPOOFF1, V21_DESC, VPOOFF1_DESC, CRT_DVO_ES_DESC);
SIG_EXPR_DECL_SINGLE(VPOR3, VPOOFF2, V21_DESC, VPOOFF2_DESC, CRT_DVO_ES_DESC);
SIG_EXPR_LIST_DECL_SINGLE(V21, SALT8, SALT8, V21_DESC);