#include <stdint.h>

struct s32 {
	uint32_t x, y;
};

struct s64 {
	uint64_t x, y;
};

union u {
	struct s32 u32;
	struct s64 u64;
};

void
frob32s(struct s32 *s)
{

	s->x = 1;
	s->y = 2;
}

void
frob32u(union u *u)
{

	u->u32.x = 1;
	u->u32.y = 2;
}

void
set32s(struct s32 *s, uint64_t xy)
{

	s->x = (xy >> 32);
	s->y = (xy & 0xffffffff);
}

void
set32u(union u *u, uint64_t xy)
{

	u->u32.x = (xy >> 32);
	u->u32.y = (xy & 0xffffffff);
}