Take a look at $SYBASE/$SYBASE_ASE/script/installmaster and we see:
/*
** These values translate sysobjects.objaudflags, sysdatabases.deftabaud,
** sysdatabases.defviewaud, and sysdatabases.defpraud column bits into the
** actual text description of the bits.
*/
insert spt_values (name, number, type) values ("OBJECT/SPROC/TRIGGER", -1, "M")
insert spt_values (name, number, type) values ("successful deletes", 1, "M")
insert spt_values (name, number, type) values ("failed deletes", 2, "M")
insert spt_values (name, number, type) values ("successful updates", 4, "M")
insert spt_values (name, number, type) values ("failed updates", 8, "M")
insert spt_values (name, number, type) values ("successful selects", 16, "M")
insert spt_values (name, number, type) values ("failed selects", 32, "M")
insert spt_values (name, number, type) values ("successful inserts", 64, "M")
insert spt_values (name, number, type) values ("failed inserts", 128, "M")
insert spt_values (name, number, type) values
("successful sproc/trigger", 256, "M")
insert spt_values (name, number, type) values
("failed sproc/trigger", 512, "M")
go
select number,name from master..spt_values where type = 'M'