X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=src%2Fcc65%2Fcodeseg.h;h=4a96bb57d4ec7740aff82c5f2ac987d35bbdaa5f;hb=aef8789873bd008d42aa50330ca98488fad91b31;hp=40ceb77a189a549b89b3f056dac4b3686644187c;hpb=f28be6d6579fcbf9e9a358d0c45ed1bb2514d689;p=cc65

diff --git a/src/cc65/codeseg.h b/src/cc65/codeseg.h
index 40ceb77a1..4a96bb57d 100644
--- a/src/cc65/codeseg.h
+++ b/src/cc65/codeseg.h
@@ -6,9 +6,9 @@
 /*                                                                           */
 /*                                                                           */
 /*                                                                           */
-/* (C) 2001      Ullrich von Bassewitz                                       */
-/*               Wacholderweg 14                                             */
-/*               D-70597 Stuttgart                                           */
+/* (C) 2001-2003 Ullrich von Bassewitz                                       */
+/*               Römerstrasse 52                                             */
+/*               D-70794 Filderstadt                                         */
 /* EMail:        uz@cc65.org                                                 */
 /*                                                                           */
 /*                                                                           */
@@ -103,6 +103,16 @@ void CS_AddVLine (CodeSeg* S, LineInfo* LI, const char* Format, va_list ap) attr
 void CS_AddLine (CodeSeg* S, LineInfo* LI, const char* Format, ...) attribute ((format(printf,3,4)));
 /* Add a line to the given code segment */
 
+#if defined(HAVE_INLINE)
+INLINE unsigned CS_GetEntryCount (const CodeSeg* S)
+/* Return the number of entries for the given code segment */
+{
+    return CollCount (&S->Entries);
+}
+#else
+#  define CS_GetEntryCount(S)	CollCount (&(S)->Entries)
+#endif
+
 void CS_InsertEntry (CodeSeg* S, struct CodeEntry* E, unsigned Index);
 /* Insert the code entry at the index given. Following code entries will be
  * moved to slots with higher indices.
@@ -112,6 +122,8 @@ void CS_DelEntry (CodeSeg* S, unsigned Index);
 /* Delete an entry from the code segment. This includes moving any associated
  * labels, removing references to labels and even removing the referenced labels
  * if the reference count drops to zero.
+ * Note: Labels are moved forward if possible, that is, they are moved to the
+ * next insn (not the preceeding one).
  */
 
 void CS_DelEntries (CodeSeg* S, unsigned Start, unsigned Count);
@@ -149,7 +161,7 @@ INLINE struct CodeEntry* CS_GetEntry (CodeSeg* S, unsigned Index)
     return CollAt (&S->Entries, Index);
 }
 #else
-#  define CS_GetEntry(S, Index)	CollAt(&(S)->Entries, (Index))
+#  define CS_GetEntry(S, Index)	((struct CodeEntry*) CollAt(&(S)->Entries, (Index)))
 #endif
 
 struct CodeEntry* CS_GetPrevEntry (CodeSeg* S, unsigned Index);
@@ -171,6 +183,24 @@ int CS_GetEntries (CodeSeg* S, struct CodeEntry** List,
 unsigned CS_GetEntryIndex (CodeSeg* S, struct CodeEntry* E);
 /* Return the index of a code entry */
 
+int CS_RangeHasLabel (CodeSeg* S, unsigned Start, unsigned Count);
+/* Return true if any of the code entries in the given range has a label
+ * attached. If the code segment does not span the given range, check the
+ * possible span instead.
+ */
+
+#if defined(HAVE_INLINE)
+INLINE int CS_HavePendingLabel (const CodeSeg* S)
+/* Return true if there are open labels that will get attached to the next
+ * instruction that is added.
+ */
+{
+    return (CollCount (&S->Labels) > 0);
+}
+#else
+#  define CS_HavePendingLabel(S)        (CollCount (&(S)->Labels) > 0)
+#endif
+
 CodeLabel* CS_AddLabel (CodeSeg* S, const char* Name);
 /* Add a code label for the next instruction to follow */
 
@@ -210,19 +240,44 @@ void CS_MoveLabelRef (CodeSeg* S, struct CodeEntry* E, CodeLabel* L);
 void CS_DelCodeAfter (CodeSeg* S, unsigned Last);
 /* Delete all entries including the given one */
 
-void CS_Output (const CodeSeg* S, FILE* F);
-/* Output the code segment data to a file */
+void CS_ResetMarks (CodeSeg* S, unsigned First, unsigned Last);
+/* Remove all user marks from the entries in the given range */
 
 #if defined(HAVE_INLINE)
-INLINE unsigned CS_GetEntryCount (const CodeSeg* S)
-/* Return the number of entries for the given code segment */
+INLINE void CS_ResetAllMarks (CodeSeg* S)
+/* Remove all user marks from the code segment */
 {
-    return CollCount (&S->Entries);
+    if (CS_GetEntryCount (S) > 0) {
+        CS_ResetMarks (S, 0, CS_GetEntryCount (S));
+    }
 }
 #else
-#  define CS_GetEntryCount(S)	CollCount (&(S)->Entries)
+#  define CS_ResetAllMarks(S) \
+        ((CS_GetEntryCount (S) > 0)? CS_ResetMarks (S, 0, CS_GetEntryCount (S)) : (void) 0)
 #endif
 
+int CS_IsBasicBlock (CodeSeg* S, unsigned First, unsigned Last);
+/* Check if the given code segment range is a basic block. That is, check if
+ * First is the only entrance and Last is the only exit. This means that no
+ * jump/branch inside the block may jump to an insn below First or after(!)
+ * Last, and that no insn may jump into this block from the outside.
+ */
+
+void CS_OutputPrologue (const CodeSeg* S, FILE* F);
+/* If the given code segment is a code segment for a function, output the
+ * assembler prologue into the file. That is: Output a comment header, switch
+ * to the correct segment and enter the local function scope. If the code
+ * segment is global, do nothing.
+ */
+
+void CS_OutputEpilogue (const CodeSeg* S, FILE* F);
+/* If the given code segment is a code segment for a function, output the
+ * assembler epilogue into the file. That is: Close the local function scope.
+ */
+
+void CS_Output (const CodeSeg* S, FILE* F);
+/* Output the code segment data to a file */
+
 void CS_FreeRegInfo (CodeSeg* S);
 /* Free register infos for all instructions */