--- /dev/null
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h> //uint64_t
+#include <string.h> //memmove
+#include <stdlib.h> //malloc
+#include <apc/ir.h>
+
+#define CURR_CDAT (*cdat_stackp)
+#define CURR_SET set_list[CURR_CDAT->num_sets]
+#define CURR_ELE ele_list[CURR_CDAT->CURR_SET.num_ele]
+#define PREV_REF (ref_buf[num_refs-1])
+#define CURR_REF (ref_buf[num_refs])
+#define PREV_ODAT (odat_buf[num_odats-1])
+#define CURR_ODAT (odat_buf[num_odats])
+#define CURR_VDAT (vdat_buf[num_vdats])
+#define PREV_VDAT (vdat_buf[num_vdats-1])
+#define CURR_MODEL model_list[CURR_VDAT->num_models]
+#define CURR_LINK (link_buf[num_links])
+#define CURR_POST (post_buf[num_posts])
+
+int num_cdats = 0;
+int curr_max_cdats = PTRS_IN_PAGE;
+
+int num_odats = 0;
+int curr_max_odats = PTRS_IN_PAGE;
+
+
+int num_vdats = 0;
+int curr_max_vdats = PTRS_IN_PAGE;
+
+int num_refs = 0;
+int curr_max_refs = PTRS_IN_PAGE;
+uint64_t ss_ref_id = 0x00FFFFFF; /* system space for ref_ids */
+
+int num_links = 0;
+int curr_max_links = PTRS_IN_PAGE;
+
+int num_posts = 0;
+int curr_max_posts = PTRS_IN_PAGE;
+
+void
+ir_init()
+{
+ /* Init root cdat and stack */
+ char root[4] = "root";
+
+ cdat_buf[num_cdats] = (struct cdat*) malloc(sizeof(struct cdat) );
+ cdat_buf[num_cdats]->idx = 0;
+ memmove(cdat_buf[num_cdats]->name, root, 4);
+
+ cdat_stackp = cdat_stack;
+ *cdat_stackp = cdat_buf[num_cdats++];
+
+ /* Init first odat */
+ if( (CURR_ODAT = (struct odat*) malloc(sizeof(struct odat))) == NULL)
+ perror("malloc first odat failed");
+
+ /* init first vdat*/
+ if( (CURR_VDAT = (struct vdat*) malloc(sizeof(struct vdat))) == NULL)
+ perror("malloc first vdat failed");
+
+ /* Init first ref */
+ if( (CURR_REF = (struct ref*) malloc(sizeof(struct ref))) == NULL)
+ perror("malloc first ref failed");
+
+ /* Init first link */
+ if( (CURR_LINK = (struct link*) malloc(sizeof(struct link))) == NULL)
+ perror("malloc first link failed");
+
+ /* Init first post */
+ if( (CURR_POST = (struct ref*) malloc(sizeof(struct ref))) == NULL)
+ perror("malloc first post failed");
+}
+
+//TODO: FREE MEMORY!
+void
+malloc_cdat()
+{
+
+ if(curr_max_cdats <= num_cdats)
+ {
+ if( (realloc((void*) cdat_buf, PTRS_IN_PAGE * 4)) == NULL)
+ perror("realloc cdat_buf failed");
+ curr_max_cdats += PTRS_IN_PAGE;
+ if( (realloc( (void*) cdat_stack, PTRS_IN_PAGE * 4)) == NULL) //increase cdat_stack also
+ perror("realloc cdat_stack failed");
+ }
+ if( (cdat_buf[num_cdats] = (struct cdat*) malloc(sizeof (struct cdat)) ) == NULL )
+ perror("malloc cdat failed");
+
+
+}
+
+/* Dynamically allocate memory for a class data structure,
+ or cdat, after a class has been identified in a grammar.
+ We also create a stack of class pointers so that
+ we can access the cdat during processing of that
+ cdats sets and elements, a requirement because the
+ nature of recursive classes prevents us from accessing
+ the cdat based on the previous index into cdat_buf,
+ which is a list of all allocated cdats*/
+void
+push_cdat(char* name)
+{
+
+ malloc_cdat();
+
+ memmove(cdat_buf[num_cdats]->name, name, 32);
+ cdat_buf[num_cdats]->idx = num_cdats;
+
+ /* Set the cdat as a class of the previous cdat */
+ (*cdat_stackp)->class_list[(*cdat_stackp)->num_classes++] = cdat_buf[num_cdats];
+
+ /* Push the cdat onto the cdat_stack */
+ *++cdat_stackp = cdat_buf[num_cdats++];
+
+}
+
+void
+pop_cdat()
+{
+ *cdat_stackp = NULL;
+ cdat_stackp--;
+}
+
+void
+inc_posts()
+{
+ num_posts++;
+ if(num_posts >= curr_max_posts)
+ {
+ if( (realloc((void*) post_buf, PTRS_IN_PAGE * 4)) == NULL)
+ perror("realloc post_buf failed");
+ curr_max_posts += PTRS_IN_PAGE;
+ }
+ if( (CURR_POST = (struct ref*) malloc(sizeof (struct ref))) == NULL)
+ {
+ perror("malloc post failed");
+ }
+
+}
+void
+inc_odat()
+{
+ num_odats++;
+ if(num_odats >= curr_max_odats)
+ {
+ if( (realloc((void*) odat_buf, PTRS_IN_PAGE * 4)) == NULL)
+ perror("realloc odat_buf failed");
+ curr_max_odats += PTRS_IN_PAGE;
+ }
+ if( (CURR_ODAT = (struct odat*) malloc(sizeof (struct odat))) == NULL)
+ {
+ perror("malloc odat failed");
+ }
+
+}
+
+void
+inc_vdat()
+{
+ num_vdats++;
+ if(num_vdats >= curr_max_vdats)
+ {
+ if( (realloc((void*) vdat_buf, PTRS_IN_PAGE * 4)) == NULL)
+ perror("realloc vdat_buf failed");
+ curr_max_vdats += PTRS_IN_PAGE;
+ }
+ if((CURR_VDAT = (struct vdat*) malloc(sizeof (struct vdat))) == NULL)
+ {
+ perror("malloc vdat failed");
+ }
+
+}
+
+void
+inc_link()
+{
+ num_links++;
+ if(num_links >= curr_max_links)
+ {
+ if( (realloc((void*) link_buf, PTRS_IN_PAGE * 4)) == NULL)
+ perror("realloc vdat_buf failed");
+ curr_max_links += PTRS_IN_PAGE;
+ }
+ if((CURR_LINK = (struct link*) malloc(sizeof (struct link))) == NULL)
+ {
+ perror("malloc link failed");
+ }
+}
+
+void
+inc_ref()
+{
+
+ if(num_refs % 16 == 0)
+ {
+ CURR_POST = CURR_REF;
+ inc_posts();
+ }
+
+ num_refs++;
+ if(num_refs >= curr_max_refs)
+ {
+ if( (realloc((void*) ref_buf, PTRS_IN_PAGE * 4)) == NULL)
+ perror("realloc ref_buf failed");
+ curr_max_refs += PTRS_IN_PAGE;
+ }
+ if((CURR_REF = (struct ref*) malloc(sizeof (struct ref))) == NULL)
+ perror("malloc ref failed");
+}
+
+void
+insert_set_label(char* name, uint64_t ref_id)
+{
+
+
+ memmove(CURR_CDAT->CURR_SET.name,name,32);
+ memmove(&CURR_CDAT->CURR_SET.ref_id,&ref_id,64);
+
+}
+void
+insert_set_olink(uint64_t ref_id)
+{
+ CURR_CDAT->CURR_SET.cdat_idx = CURR_CDAT->idx;
+ CURR_CDAT->CURR_SET.ref_id = ref_id; /* Will be resolved to offset
+ when link is processed */
+ CURR_LINK->type = 1;
+ CURR_LINK->link_t.olink.ref_id = ref_id;
+ CURR_LINK->cdat_idx = CURR_CDAT->idx;
+ CURR_LINK->set_idx = CURR_CDAT->num_sets++;
+ CURR_LINK->ele_idx = -1;
+
+ inc_link();
+}
+
+void
+insert_set_vlink(uint64_t ref_id, char* anim_name)
+{
+ /* Insert vlink into link_stack so that it gets processed at
+ output time */
+ CURR_LINK->cdat_idx = CURR_CDAT->idx;
+ CURR_LINK->set_idx = CURR_CDAT->num_sets;
+ CURR_LINK->type = 2;
+ CURR_LINK->link_t.vlink.ref_id = ref_id;
+ memmove(CURR_LINK->link_t.vlink.anim_name, anim_name, 32);
+
+
+}
+
+void
+insert_set_svlink(uint64_t ref_id)
+{
+
+ /* Insert vlink into link_stack so that it gets processed at
+ output time */
+ CURR_LINK->cdat_idx = CURR_CDAT->idx;
+ CURR_LINK->set_idx = CURR_CDAT->num_sets;
+ CURR_LINK->type = 3;
+ CURR_LINK->link_t.svlink.ref_id = ref_id;
+
+}
+
+/* At the point of reducing to a set, most of the
+ sets odat information has already been populated
+ during the reduction of its right hand side
+ non terminals (hitbox, root, quad_list). */
+void
+insert_set()
+{
+ uint64_t ref_id;
+
+ ref_id = CURR_CDAT->CURR_SET.ref_id;
+
+ CURR_CDAT->CURR_SET.cdat_idx = CURR_CDAT->idx;
+ memmove(CURR_ODAT->name, CURR_CDAT->CURR_SET.name, 32);
+ CURR_CDAT->num_sets++;
+
+ CURR_ODAT->cdat_idx = CURR_CDAT->idx;
+ CURR_ODAT->refp = CURR_REF;
+
+
+ CURR_REF->lastref = PREV_REF;
+ PREV_REF->nextref = CURR_REF;
+ CURR_REF->odatp = CURR_ODAT;
+
+
+ if(ref_id == -1) /* user did not define a ref_id so */
+ { /* use a ref_id from system_space */
+ ref_id = ss_ref_id;
+ ss_ref_id++;
+ }
+
+ CURR_REF->ref_id = ref_id;
+
+
+
+ inc_ref();
+ inc_odat();
+}
+
+void
+insert_vdat()
+{
+ PREV_ODAT->vdat_id = num_vdats; //NULL for vlink, svlink
+ inc_vdat();
+}
+
+/* Populates both the odat name and ref_id
+ for element. */
+void
+insert_ele_label(char* name, uint64_t ref_id)
+{
+ memmove(CURR_CDAT->CURR_SET.CURR_ELE.name, name, 32);
+ memmove(&CURR_CDAT->CURR_SET.ele_list[CURR_CDAT->CURR_SET.ref_id].ref_id, &ref_id, 64);
+}
+
+void
+insert_ele_olink(uint64_t ref_id)
+{
+ CURR_CDAT->CURR_SET.CURR_ELE.cdat_idx = CURR_CDAT->idx;
+ CURR_CDAT->CURR_SET.CURR_ELE.ref_id = ref_id; /* Will be resolved to offset
+ when link is processed */
+ CURR_LINK->type = 1;
+ CURR_LINK->link_t.olink.ref_id = ref_id;
+ CURR_LINK->cdat_idx = CURR_CDAT->idx;
+ CURR_LINK->set_idx = CURR_CDAT->num_sets++;
+ CURR_LINK->ele_idx = CURR_CDAT->CURR_SET.num_ele++;
+
+}
+void
+insert_ele_vlink(uint64_t ref_id, char* anim_name)
+{
+
+ /* Insert vlink into link_stack so that it gets processed at
+ output time */
+ CURR_LINK->cdat_idx = CURR_CDAT->idx;
+ CURR_LINK->type = 2;
+ CURR_LINK->set_idx = CURR_CDAT->num_sets;
+ CURR_LINK->ele_idx = CURR_CDAT->CURR_SET.num_ele;
+ CURR_LINK->link_t.vlink.ref_id = ref_id;
+ memmove(CURR_LINK->link_t.vlink.anim_name, anim_name, 32);
+
+
+}
+void
+insert_ele_svlink(uint64_t ref_id)
+{
+
+ CURR_LINK->cdat_idx = CURR_CDAT->idx;
+ CURR_LINK->type = 3;
+ CURR_LINK->set_idx = CURR_CDAT->num_sets;
+ CURR_LINK->ele_idx = CURR_CDAT->CURR_SET.num_ele;
+ CURR_LINK->link_t.svlink.ref_id = ref_id;
+
+
+}
+//Insert element into odat_buf and cdatpages
+void
+insert_ele()
+{
+
+ uint64_t ref_id;
+
+ ref_id = CURR_CDAT->CURR_SET.CURR_ELE.ref_id;
+
+ CURR_CDAT->CURR_SET.CURR_ELE.cdat_idx = CURR_CDAT->idx;
+ memmove(CURR_ODAT->name,CURR_CDAT->CURR_SET.CURR_ELE.name, 32);
+ CURR_CDAT->CURR_SET.num_ele++;
+
+ CURR_ODAT->cdat_idx = CURR_CDAT->idx;
+ CURR_ODAT->refp = CURR_REF;
+
+ if(ref_id == -1) /* user did not define a ref_id so */
+ { /* use a ref_id from system_space */
+ ref_id = ss_ref_id;
+ ss_ref_id++;
+ }
+
+ CURR_REF->ref_id = ref_id;
+
+ inc_odat();
+ inc_ref();
+
+}
+
+void
+insert_framesheet(char direction, char* name, uint64_t ref_id, int height , int width, int num_frames)
+{
+ CURR_VDAT->CURR_MODEL.spritesheet[(int)direction].height = height;
+ CURR_VDAT->CURR_MODEL.spritesheet[(int)direction].width = width;
+ CURR_VDAT->CURR_MODEL.spritesheet[(int)direction].num_frames = num_frames;
+ CURR_VDAT->num_models++;
+}
+
+#define CURR_QUAD (CURR_ODAT->quad_list[CURR_ODAT->num_quads])
+void
+insert_quad(int x, int y, int z, uint64_t ref_id)
+{
+ CURR_QUAD.x = x;
+ CURR_QUAD.y = y;
+ CURR_QUAD.z = z;
+ CURR_QUAD.ref_id = ref_id;
+ CURR_ODAT->num_quads++;
+}
+
+/* Inserting the hitbox into the set
+ odat. Elements that don't have
+ a hitbox will use the sets root. */
+void
+insert_hitbox(int hitbox)
+{
+ CURR_ODAT->hitbox = hitbox;
+}
+
+/* Inserting the root into the set
+ odat. Elements that don't have
+ a root will use the sets root. */
+void
+insert_root(int x, int y, int z)
+{
+
+ CURR_ODAT->root.x = x;
+ CURR_ODAT->root.y = y;
+ CURR_ODAT->root.z = z;
+}
+
+void
+insert_frame_pointer(char direction, void* frame)
+{
+ CURR_VDAT->CURR_MODEL.spritesheet[(int)direction].frames[CURR_VDAT->CURR_MODEL.spritesheet[(int)direction].num_frames++] = frame;
+}
+