/* */
/* */
/* */
-/* (C) 2007 Ullrich von Bassewitz */
-/* Roemerstrasse 52 */
-/* D-70794 Filderstadt */
-/* EMail: uz@cc65.org */
+/* (C) 2007-2014, Ullrich von Bassewitz */
+/* Roemerstrasse 52 */
+/* D-70794 Filderstadt */
+/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
typedef struct Segment Segment;
struct Segment {
Segment* NextStart; /* Pointer to next segment */
- Segment* NextEnd; /* Pointer to next segment */
unsigned long Start;
- unsigned long End;
unsigned AddrSize;
char Name[1]; /* Name, dynamically allocated */
};
-/* Tables containing the segments. A segment is inserted using it's hash
- * value. Collision is done by single linked lists.
- */
+/* Table containing the segments. A segment is inserted using its hash
+** value. Collisions are handled by single-linked lists.
+*/
static Segment* StartTab[HASH_SIZE]; /* Table containing segment starts */
-static Segment* EndTab[HASH_SIZE]; /* Table containing segment ends */
/*****************************************************************************/
-/* Code */
+/* Code */
/*****************************************************************************/
/* Fill in the data */
S->Start = Start;
- S->End = End;
S->AddrSize = ADDR_SIZE_ABS;
memcpy (S->Name, Name, Len + 1);
- /* Insert the segment into the hash tables */
+ /* Insert the segment into the hash table */
S->NextStart = StartTab[Start % HASH_SIZE];
StartTab[Start % HASH_SIZE] = S;
- S->NextEnd = EndTab[End % HASH_SIZE];
- EndTab[End % HASH_SIZE] = S;
/* Mark start and end of the segment */
- MarkAddr (Start, atSegmentChange);
- MarkAddr (End, atSegmentChange);
+ MarkAddr (Start, atSegmentStart);
+ MarkAddr (End, atSegmentEnd);
/* Mark the addresses within the segment */
MarkRange (Start, End, atSegment);
+char* GetSegmentStartName (unsigned Addr)
+/* Return the name of the segment which starts at the given address */
+{
+ Segment* S = StartTab[Addr % HASH_SIZE];
+
+ /* Search the collision list for the exact address */
+ while (S != 0) {
+ if (S->Start == Addr) {
+ return S->Name;
+ }
+ S = S->NextStart;
+ }
+
+ return 0;
+}
+
+
+
+unsigned GetSegmentAddrSize (unsigned Addr)
+/* Return the address size of the segment which starts at the given address */
+{
+ Segment* S = StartTab[Addr % HASH_SIZE];
+
+ /* Search the collision list for the exact address */
+ while (S != 0) {
+ if (S->Start == Addr) {
+ return S->AddrSize;
+ }
+ S = S->NextStart;
+ }
+
+ return 0;
+}