mie: implement value type initialiser functions

mie/const.c

@@ -0,0 +1,26 @@
+#include <mie/const.h>
+#include <stdlib.h>
+#include <string.h>
+
+void mie_int_init(struct mie_int *out, long long val, unsigned int nr_bits)
+{
+	memset(out, 0x0, sizeof *out);
+
+	mie_value_init(&out->i_base.c_base, MIE_VALUE_CONST);
+
+	out->i_base.c_type = MIE_CONST_INT;
+	out->i_value = val;
+	out->i_width = nr_bits;
+}
+
+struct mie_int *mie_int_create(long long val, unsigned int nr_bits)
+{
+	struct mie_int *out = malloc(sizeof *out);
+
+	if (!out) {
+		return NULL;
+	}
+
+	mie_int_init(out, val, nr_bits);
+	return out;
+}