1 files changed, 116 insertions, 0 deletions
diff --git a/vere/pkg/past/v2.c b/vere/pkg/past/v2.c
new file mode 100644
index 0000000..46ef8ea
--- /dev/null
+++ b/vere/pkg/past/v2.c
@@ -0,0 +1,116 @@
+#include "v2.h"
+
+#     define  u3h_v2_free  u3h_v3_free
+#     define  u3h_v2_walk  u3h_v3_walk
+#     define  u3h_v2_new   u3h_v3_new
+
+u3a_v2_road* u3a_v2_Road;
+u3v_v2_home* u3v_v2_Home;
+
+
+/***  jets.c
+***/
+
+/* u3j_v2_reclaim(): clear ad-hoc persistent caches to reclaim memory.
+*/
+void
+u3j_v2_reclaim(void)
+{
+  //  set globals (required for aliased functions)
+  //  XX confirm
+  u3H_v3 = (u3v_v3_home*) u3H_v2;
+  u3R_v3 = (u3a_v3_road*) u3R_v2;
+
+  //  clear the jet hank cache
+  //
+  u3h_v2_walk(u3R_v2->jed.han_p, u3j_v2_free_hank);
+  u3h_v2_free(u3R_v2->jed.han_p);
+  u3R_v2->jed.han_p = u3h_v2_new();
+}
+
+
+/***  nock.c
+***/
+
+/* _cn_v2_prog_free(): free memory retained by program pog_u
+*/
+static void
+_cn_v2_prog_free(u3n_v2_prog* pog_u)
+{
+  // fix up pointers for loom portability
+  pog_u->byc_u.ops_y = (c3_y*) ((void*) pog_u) + sizeof(u3n_v2_prog);
+  pog_u->lit_u.non   = (u3_noun*) (pog_u->byc_u.ops_y + pog_u->byc_u.len_w);
+  pog_u->mem_u.sot_u = (u3n_v2_memo*) (pog_u->lit_u.non + pog_u->lit_u.len_w);
+  pog_u->cal_u.sit_u = (u3j_v2_site*) (pog_u->mem_u.sot_u + pog_u->mem_u.len_w);
+  pog_u->reg_u.rit_u = (u3j_v2_rite*) (pog_u->cal_u.sit_u + pog_u->cal_u.len_w);
+
+  c3_w dex_w;
+  for (dex_w = 0; dex_w < pog_u->lit_u.len_w; ++dex_w) {
+    u3a_v2_lose(pog_u->lit_u.non[dex_w]);
+  }
+  for (dex_w = 0; dex_w < pog_u->mem_u.len_w; ++dex_w) {
+    u3a_v2_lose(pog_u->mem_u.sot_u[dex_w].key);
+  }
+  for (dex_w = 0; dex_w < pog_u->cal_u.len_w; ++dex_w) {
+    u3j_v2_site_lose(&(pog_u->cal_u.sit_u[dex_w]));
+  }
+  for (dex_w = 0; dex_w < pog_u->reg_u.len_w; ++dex_w) {
+    u3j_v2_rite_lose(&(pog_u->reg_u.rit_u[dex_w]));
+  }
+  u3a_v2_free(pog_u);
+}
+
+/* _n_v2_feb(): u3h_v2_walk helper for u3n_v2_free
+ */
+static void
+_n_v2_feb(u3_noun kev)
+{
+  u3a_v2_cell *cel_u = (u3a_v2_cell*) u3a_v2_to_ptr(kev);
+  _cn_v2_prog_free(u3v2to(u3n_v2_prog, cel_u->tel));
+}
+
+/* u3n_v2_free(): free bytecode cache
+ */
+void
+u3n_v2_free(void)
+{
+  u3p(u3h_v2_root) har_p = u3R_v2->byc.har_p;
+  u3h_v2_walk(har_p, _n_v2_feb);
+  u3h_v2_free(har_p);
+}
+
+/* u3n_v2_reclaim(): clear ad-hoc persistent caches to reclaim memory.
+*/
+void
+u3n_v2_reclaim(void)
+{
+  //  set globals (required for aliased functions)
+  u3H_v3 = (u3v_v3_home*) u3H_v2;
+  u3R_v3 = (u3a_v3_road*) u3R_v2;
+
+  //  clear the bytecode cache
+  u3n_v2_free();
+  u3R_v2->byc.har_p = u3h_v2_new();
+}
+
+
+/***  init
+***/
+
+void
+u3_v2_load(c3_z wor_i)
+{
+  c3_w ver_w = *(u3_Loom_v2 + wor_i - 1);
+
+  u3_assert( U3V_VER2 == ver_w );
+
+  c3_w *mem_w = u3_Loom_v2 + u3a_v2_walign;
+  c3_w  len_w = wor_i - u3a_v2_walign;
+  c3_w  suz_w = c3_wiseof(u3v_v2_home);
+  c3_w *mut_w = c3_align(mem_w + len_w - suz_w, u3a_v2_balign, C3_ALGLO);
+
+  //  set v2 globals
+  u3H_v2 = (void *)mut_w;
+  u3R_v2 = &u3H_v2->rod_u;
+  u3R_v2->cap_p = u3R_v2->mat_p = u3a_v2_outa(u3H_v2);
+}