p |int |magic_nextpack |SV* sv|MAGIC* mg|SV* key
p |U32 |magic_regdata_cnt|SV* sv|MAGIC* mg
p |int |magic_regdatum_get|SV* sv|MAGIC* mg
-p |void |magic_regdatum_set|SV* sv|MAGIC* mg
+p |int |magic_regdatum_set|SV* sv|MAGIC* mg
p |int |magic_set |SV* sv|MAGIC* mg
p |int |magic_setamagic|SV* sv|MAGIC* mg
p |int |magic_setarylen|SV* sv|MAGIC* mg