X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=src%2Fcc65%2Fcodeent.h;h=01a815728971b7dbec30512ae3ddbc4ec2d7bbe9;hb=c76a8657b3324a7ce203665bbdc720a4f706bf48;hp=61cd3b55f10e1374059bd3bf9b6cb79be82f0f27;hpb=0218f8c63222c2c26470f73604ce3cd937d8dada;p=cc65 diff --git a/src/cc65/codeent.h b/src/cc65/codeent.h index 61cd3b55f..01a815728 100644 --- a/src/cc65/codeent.h +++ b/src/cc65/codeent.h @@ -6,10 +6,10 @@ /* */ /* */ /* */ -/* (C) 2001 Ullrich von Bassewitz */ -/* Wacholderweg 14 */ -/* D-70597 Stuttgart */ -/* EMail: uz@musoftware.de */ +/* (C) 2001-2005, Ullrich von Bassewitz */ +/* Römerstrasse 52 */ +/* D-70794 Filderstadt */ +/* EMail: uz@cc65.org */ /* */ /* */ /* This software is provided 'as-is', without any expressed or implied */ @@ -39,39 +39,46 @@ #include +#include /* common */ #include "coll.h" +#include "inline.h" /* cc65 */ #include "codelab.h" +#include "lineinfo.h" #include "opcodes.h" +#include "reginfo.h" /*****************************************************************************/ -/* Data */ +/* Data */ /*****************************************************************************/ /* Flags used */ -#define CEF_USERMARK 0x0001U /* Generic mark by user functions */ -#define CEF_NUMARG 0x0002U /* Insn has numerical argument */ +#define CEF_USERMARK 0x0001U /* Generic mark by user functions */ +#define CEF_NUMARG 0x0002U /* Insn has numerical argument */ /* Code entry structure */ typedef struct CodeEntry CodeEntry; struct CodeEntry { - opc_t OPC; /* Opcode */ - am_t AM; /* Adressing mode */ - unsigned char Size; /* Estimated size */ - unsigned char Hints; /* Hints for this entry */ + unsigned char OPC; /* Opcode */ + unsigned char AM; /* Adressing mode */ + unsigned char Size; /* Estimated size */ + unsigned char Flags; /* Flags */ char* Arg; /* Argument as string */ - unsigned Num; /* Numeric argument */ - unsigned short Flags; /* Flags */ - unsigned short Info; /* Register usage info for this entry */ - CodeLabel* JumpTo; /* Jump label */ - Collection Labels; /* Labels for this instruction */ + unsigned long Num; /* Numeric argument */ + unsigned short Info; /* Additional code info */ + unsigned short Use; /* Registers used */ + unsigned short Chg; /* Registers changed/destroyed */ + CodeLabel* JumpTo; /* Jump label */ + Collection Labels; /* Labels for this instruction */ + LineInfo* LI; /* Source line info for this insn */ + RegInfo* RI; /* Register info for this insn */ }; @@ -82,16 +89,141 @@ struct CodeEntry { -CodeEntry* NewCodeEntry (const OPCDesc* D, am_t AM, const char* Arg, CodeLabel* JumpTo); +const char* MakeHexArg (unsigned Num); +/* Convert Num into a string in the form $XY, suitable for passing it as an + * argument to NewCodeEntry, and return a pointer to the string. + * BEWARE: The function returns a pointer to a static buffer, so the value is + * gone if you call it twice (and apart from that it's not thread and signal + * safe). + */ + +CodeEntry* NewCodeEntry (opc_t OPC, am_t AM, const char* Arg, + CodeLabel* JumpTo, LineInfo* LI); /* Create a new code entry, initialize and return it */ void FreeCodeEntry (CodeEntry* E); /* Free the given code entry */ -int CodeEntryHasLabel (const CodeEntry* E); +void CE_ReplaceOPC (CodeEntry* E, opc_t OPC); +/* Replace the opcode of the instruction. This will also replace related info, + * Size, Use and Chg, but it will NOT update any arguments or labels. + */ + +int CodeEntriesAreEqual (const CodeEntry* E1, const CodeEntry* E2); +/* Check if both code entries are equal */ + +void CE_AttachLabel (CodeEntry* E, CodeLabel* L); +/* Attach the label to the entry */ + +void CE_ClearJumpTo (CodeEntry* E); +/* Clear the JumpTo entry and the argument (which contained the name of the + * label). Note: The function will not clear the backpointer from the label, + * so use it with care. + */ + +#if defined(HAVE_INLINE) +INLINE int CE_HasLabel (const CodeEntry* E) /* Check if the given code entry has labels attached */ +{ + return (CollCount (&E->Labels) > 0); +} +#else +# define CE_HasLabel(E) (CollCount (&(E)->Labels) > 0) +#endif + +#if defined(HAVE_INLINE) +INLINE unsigned CE_GetLabelCount (const CodeEntry* E) +/* Get the number of labels attached to this entry */ +{ + return CollCount (&E->Labels); +} +#else +# define CE_GetLabelCount(E) CollCount (&(E)->Labels) +#endif + +#if defined(HAVE_INLINE) +INLINE CodeLabel* CE_GetLabel (CodeEntry* E, unsigned Index) +/* Get a label from this code entry */ +{ + return CollAt (&E->Labels, Index); +} +#else +# define CE_GetLabel(E, Index) CollAt (&(E)->Labels, (Index)) +#endif + +void CE_MoveLabel (CodeLabel* L, CodeEntry* E); +/* Move the code label L from it's former owner to the code entry E. */ + +#if defined(HAVE_INLINE) +INLINE int CE_HasMark (const CodeEntry* E) +/* Return true if the given code entry has the CEF_USERMARK flag set */ +{ + return (E->Flags & CEF_USERMARK) != 0; +} +#else +# define CE_HasMark(E) (((E)->Flags & CEF_USERMARK) != 0) +#endif + +#if defined(HAVE_INLINE) +INLINE void CE_SetMark (CodeEntry* E) +/* Set the CEF_USERMARK flag for the given entry */ +{ + E->Flags |= CEF_USERMARK; +} +#else +# define CE_SetMark(E) ((E)->Flags |= CEF_USERMARK) +#endif -void OutputCodeEntry (FILE* F, const CodeEntry* E); +#if defined(HAVE_INLINE) +INLINE void CE_ResetMark (CodeEntry* E) +/* Reset the CEF_USERMARK flag for the given entry */ +{ + E->Flags &= ~CEF_USERMARK; +} +#else +# define CE_ResetMark(E) ((E)->Flags &= ~CEF_USERMARK) +#endif + +void CE_SetArg (CodeEntry* E, const char* Arg); +/* Replace the argument by the new one. */ + +void CE_SetNumArg (CodeEntry* E, long Num); +/* Set a new numeric argument for the given code entry that must already + * have a numeric argument. + */ + +int CE_IsConstImm (const CodeEntry* E); +/* Return true if the argument of E is a constant immediate value */ + +int CE_IsKnownImm (const CodeEntry* E, unsigned long Num); +/* Return true if the argument of E is a constant immediate value that is + * equal to Num. + */ + +#if defined(HAVE_INLINE) +INLINE int CE_IsCallTo (const CodeEntry* E, const char* Name) +/* Check if this is a call to the given function */ +{ + return (E->OPC == OP65_JSR && strcmp (E->Arg, Name) == 0); +} +#else +# define CE_IsCallTo(E, Name) ((E)->OPC == OP65_JSR && strcmp ((E)->Arg, (Name)) == 0) +#endif + +int CE_UseLoadFlags (const CodeEntry* E); +/* Return true if the instruction uses any flags that are set by a load of + * a register (N and Z). + */ + +void CE_FreeRegInfo (CodeEntry* E); +/* Free an existing register info struct */ + +void CE_GenRegInfo (CodeEntry* E, RegContents* InputRegs); +/* Generate register info for this instruction. If an old info exists, it is + * overwritten. + */ + +void CE_Output (const CodeEntry* E, FILE* F); /* Output the code entry to a file */ @@ -101,3 +233,4 @@ void OutputCodeEntry (FILE* F, const CodeEntry* E); +