Function emit_neg

dpdk/lib/bpf/bpf_jit_x86.c:246–255

* emit neg % */

 * emit neg %<dreg>
 */
static void
emit_neg(struct bpf_jit_state *st, uint32_t op, uint32_t dreg)
{
	const uint8_t ops = 0xF7;
	const uint8_t mods = 3;

	emit_rex(st, op, 0, dreg);
	emit_bytes(st, &ops, sizeof(ops));
	emit_modregrm(st, MOD_DIRECT, mods, dreg);
}

/*
 * emit mov %<sreg>, %<dreg>