X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=src%2Fcc65%2Fcodeseg.h;h=fc61ab25eb476790ef4d25cad27cf587c9b4e004;hb=426bea8c19391ebd809cb4dfac28ae20c0d4953b;hp=91b8536ecdff28267399268d3f5a0db31aff63cb;hpb=e6484f85c7f440aa8b12bbf956bed0b87e4ddeed;p=cc65 diff --git a/src/cc65/codeseg.h b/src/cc65/codeseg.h index 91b8536ec..fc61ab25e 100644 --- a/src/cc65/codeseg.h +++ b/src/cc65/codeseg.h @@ -6,10 +6,10 @@ /* */ /* */ /* */ -/* (C) 2001 Ullrich von Bassewitz */ -/* Wacholderweg 14 */ -/* D-70597 Stuttgart */ -/* EMail: uz@musoftware.de */ +/* (C) 2001 Ullrich von Bassewitz */ +/* Wacholderweg 14 */ +/* D-70597 Stuttgart */ +/* EMail: uz@cc65.org */ /* */ /* */ /* This software is provided 'as-is', without any expressed or implied */ @@ -37,20 +37,32 @@ #define CODESEG_H - + #include #include /* common */ #include "attrib.h" #include "coll.h" +#include "inline.h" /* cc65 */ #include "codelab.h" +#include "lineinfo.h" #include "symentry.h" +/*****************************************************************************/ +/* Forwards */ +/*****************************************************************************/ + + + +struct CodeEntry; + + + /*****************************************************************************/ /* Data */ /*****************************************************************************/ @@ -63,11 +75,12 @@ /* Code segment structure */ typedef struct CodeSeg CodeSeg; struct CodeSeg { - char* SegName; /* Segment name */ - SymEntry* Func; /* Owner function */ - Collection Entries; /* List of code entries */ - Collection Labels; /* Labels for next insn */ - CodeLabel* LabelHash [CS_LABEL_HASH_SIZE]; /* Label hash table */ + char* SegName; /* Segment name */ + SymEntry* Func; /* Owner function */ + Collection Entries; /* List of code entries */ + Collection Labels; /* Labels for next insn */ + CodeLabel* LabelHash [CS_LABEL_HASH_SIZE]; /* Label hash table */ + unsigned short ExitRegs; /* Register use on exit */ }; @@ -81,43 +94,146 @@ struct CodeSeg { CodeSeg* NewCodeSeg (const char* SegName, SymEntry* Func); /* Create a new code segment, initialize and return it */ -void FreeCodeSeg (CodeSeg* S); -/* Free a code segment including all code entries */ +void CS_AddEntry (CodeSeg* S, struct CodeEntry* E); +/* Add an entry to the given code segment */ -void AddCodeEntry (CodeSeg* S, const char* Format, va_list ap) attribute ((format(printf,2,0))); +void CS_AddVLine (CodeSeg* S, LineInfo* LI, const char* Format, va_list ap) attribute ((format(printf,3,0))); /* Add a line to the given code segment */ -void DelCodeEntry (CodeSeg* S, unsigned Index); -/* Delete an entry from the code segment. This includes deleting any associated +void CS_AddLine (CodeSeg* S, LineInfo* LI, const char* Format, ...) attribute ((format(printf,3,4))); +/* Add a line to the given code segment */ + +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. + */ + +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. */ -void AddCodeLabel (CodeSeg* S, const char* Name); +void CS_DelEntries (CodeSeg* S, unsigned Start, unsigned Count); +/* Delete a range of code entries. This includes removing references to labels, + * labels attached to the entries and so on. + */ + +void CS_MoveEntries (CodeSeg* S, unsigned Start, unsigned Count, unsigned NewPos); +/* Move a range of entries from one position to another. Start is the index + * of the first entry to move, Count is the number of entries and NewPos is + * the index of the target entry. The entry with the index Start will later + * have the index NewPos. All entries with indices NewPos and above are + * moved to higher indices. If the code block is moved to the end of the + * current code, and if pending labels exist, these labels will get attached + * to the first instruction of the moved block (the first one after the + * current code end) + */ + +#if defined(HAVE_INLINE) +INLINE void CS_MoveEntry (CodeSeg* S, unsigned OldPos, unsigned NewPos) +/* Move an entry from one position to another. OldPos is the current position + * of the entry, NewPos is the new position of the entry. + */ +{ + CollMove (&S->Entries, OldPos, NewPos); +} +#else +# define CS_MoveEntry(S, OldPos, NewPos) CollMove (&(S)->Entries, OldPos, NewPos) +#endif + +#if defined(HAVE_INLINE) +INLINE struct CodeEntry* CS_GetEntry (CodeSeg* S, unsigned Index) +/* Get an entry from the given code segment */ +{ + return CollAt (&S->Entries, Index); +} +#else +# define CS_GetEntry(S, Index) CollAt(&(S)->Entries, (Index)) +#endif + +struct CodeEntry* CS_GetPrevEntry (CodeSeg* S, unsigned Index); +/* Get the code entry preceeding the one with the index Index. If there is no + * preceeding code entry, return NULL. + */ + +struct CodeEntry* CS_GetNextEntry (CodeSeg* S, unsigned Index); +/* Get the code entry following the one with the index Index. If there is no + * following code entry, return NULL. + */ + +int CS_GetEntries (CodeSeg* S, struct CodeEntry** List, + unsigned Start, unsigned Count); +/* Get Count code entries into List starting at index start. Return true if + * we got the lines, return false if not enough lines were available. + */ + +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. + */ + +CodeLabel* CS_AddLabel (CodeSeg* S, const char* Name); /* Add a code label for the next instruction to follow */ -void DelCodeLabel (CodeSeg* S, CodeLabel* L); +CodeLabel* CS_GenLabel (CodeSeg* S, struct CodeEntry* E); +/* If the code entry E does already have a label, return it. Otherwise + * create a new label, attach it to E and return it. + */ + +void CS_DelLabel (CodeSeg* S, CodeLabel* L); /* Remove references from this label and delete it. */ -void AddCodeSegHint (CodeSeg* S, unsigned Hint); -/* Add a hint for the preceeding instruction */ +void CS_MergeLabels (CodeSeg* S); +/* Merge code labels. That means: For each instruction, remove all labels but + * one and adjust references accordingly. + */ -void DelCodeSegAfter (CodeSeg* S, unsigned Last); +void CS_MoveLabels (CodeSeg* S, struct CodeEntry* Old, struct CodeEntry* New); +/* Move all labels from Old to New. The routine will move the labels itself + * if New does not have any labels, and move references if there is at least + * a label for new. If references are moved, the old label is deleted + * afterwards. + */ + +void CS_RemoveLabelRef (CodeSeg* S, struct CodeEntry* E); +/* Remove the reference between E and the label it jumps to. The reference + * will be removed on both sides and E->JumpTo will be 0 after that. If + * the reference was the only one for the label, the label will get + * deleted. + */ + +void CS_MoveLabelRef (CodeSeg* S, struct CodeEntry* E, CodeLabel* L); +/* Change the reference of E to L instead of the current one. If this + * was the only reference to the old label, the old label will get + * deleted. + */ + +void CS_DelCodeAfter (CodeSeg* S, unsigned Last); /* Delete all entries including the given one */ -void OutputCodeSeg (const CodeSeg* S, FILE* F); +void CS_Output (const CodeSeg* S, FILE* F); /* Output the code segment data to a file */ -CodeLabel* FindCodeLabel (CodeSeg* S, const char* Name, unsigned Hash); -/* Find the label with the given name. Return the label or NULL if not found */ +#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 MergeCodeLabels (CodeSeg* S); -/* Merge code labels. That means: For each instruction, remove all labels but - * one and adjust the code entries accordingly. - */ +void CS_FreeRegInfo (CodeSeg* S); +/* Free register infos for all instructions */ -unsigned GetCodeSegEntries (const CodeSeg* S); -/* Return the number of entries for the given code segment */ +void CS_GenRegInfo (CodeSeg* S); +/* Generate register infos for all instructions */