Fix instruction decoding for systems with sizeof(long) > 4

This regression was introduced in c089310109a8f945e7f641b41d447c3d9ee122bc
("saturated opcode jump table to more direct management")
Fix scalar LW/SW for systems with sizeof(long) > 4

This regression was introduced in 4bee44e0d28cc32373155538ef880dbc00ae5f9f
("switch on all endian manipulations, lower ?WC2 stack usage")
Fix vector divides on systems with sizeof(long) > 4

The wrong div operations result in wrong transformations in many roms.

This regression was introduced in 87210c71a523482eb5d8aa5eb82468048514beac
("cleanups and rewrites to the vector divide class").
Replace all long with (u)int32_t for systems with sizeof(long) > 4
Fix wrong size modifiers in debug output