git.sur5r.net Git - cc65/blob - src/cc65/asmcode.c

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                 asmcode.c                                 */
   4 /*                                                                           */
   5 /*          Assembler output code handling for the cc65 C compiler           */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 2000-2001 Ullrich von Bassewitz                                       */
  10 /*               Wacholderweg 14                                             */
  11 /*               D-70597 Stuttgart                                           */
  12 /* EMail:        uz@cc65.org                                                 */
  13 /*                                                                           */
  14 /*                                                                           */
  15 /* This software is provided 'as-is', without any expressed or implied       */
  16 /* warranty.  In no event will the authors be held liable for any damages    */
  17 /* arising from the use of this software.                                    */
  18 /*                                                                           */
  19 /* Permission is granted to anyone to use this software for any purpose,     */
  20 /* including commercial applications, and to alter it and redistribute it    */
  21 /* freely, subject to the following restrictions:                            */
  22 /*                                                                           */
  23 /* 1. The origin of this software must not be misrepresented; you must not   */
  24 /*    claim that you wrote the original software. If you use this software   */
  25 /*    in a product, an acknowledgment in the product documentation would be  */
  26 /*    appreciated but is not required.                                       */
  27 /* 2. Altered source versions must be plainly marked as such, and must not   */
  28 /*    be misrepresented as being the original software.                      */
  29 /* 3. This notice may not be removed or altered from any source              */
  30 /*    distribution.                                                          */
  31 /*                                                                           */
  32 /*****************************************************************************/
  33
  34
  35
  36 /* common */
  37 #include "check.h"
  38
  39 /* cc65 */
  40 #include "codeopt.h"
  41 #include "codeseg.h"
  42 #include "dataseg.h"
  43 #include "symtab.h"
  44 #include "asmcode.h"
  45
  46
  47
  48 /*****************************************************************************/
  49 /*                                   Code                                    */
  50 /*****************************************************************************/
  51
  52
  53
  54 void AddCodeHint (const char* Hint)
  55 /* Add an optimizer hint */
  56 {
  57     /* ### AddCodeLine ("+%s", Hint); */
  58 }
  59
  60
  61
  62 CodeMark GetCodePos (void)
  63 /* Get a marker pointing to the current output position */
  64 {
  65     return GetCodeSegEntries (CS);
  66 }
  67
  68
  69
  70 void RemoveCode (CodeMark M)
  71 /* Remove all code after the given code marker */
  72 {
  73     DelCodeSegAfter (CS, M);
  74 }
  75
  76
  77
  78 static void PrintFunctionHeader (FILE* F, SymEntry* Entry)
  79 {
  80     /* Print a comment with the function signature */
  81     fprintf (F,
  82              "; ---------------------------------------------------------------\n"
  83              "; ");
  84     PrintFuncSig (F, Entry->Name, Entry->Type);
  85     fprintf (F,
  86              "\n"
  87              "; ---------------------------------------------------------------\n"
  88              "\n");
  89 }
  90
  91
  92
  93 void WriteOutput (FILE* F)
  94 /* Write the final output to a file */
  95 {
  96     SymTable* SymTab;
  97     SymEntry* Entry;
  98
  99     /* Output the data segment (the global code segment should be empty) */
 100     OutputDataSeg (F, DS);
 101     CHECK (GetCodeSegEntries (CS) == 0);
 102
 103     /* Output all global or referenced functions */
 104     SymTab = GetGlobalSymTab ();
 105     Entry  = SymTab->SymHead;
 106     while (Entry) {
 107         if (IsTypeFunc (Entry->Type)            &&
 108             (Entry->Flags & SC_DEF) != 0        &&
 109             (Entry->Flags & (SC_REF | SC_EXTERN)) != 0) {
 110             /* Function which is defined and referenced or extern */
 111             PrintFunctionHeader (F, Entry);
 112             MergeCodeLabels (Entry->V.F.CS);
 113             RunOpt (Entry->V.F.CS);
 114             fprintf (F, "; Data segment for function %s:\n", Entry->Name);
 115             OutputDataSeg (F, Entry->V.F.DS);
 116             fprintf (F, "; Code segment for function %s:\n", Entry->Name);
 117             OutputCodeSeg (F, Entry->V.F.CS);
 118         }
 119         Entry = Entry->NextSym;
 120     }
 121 }
 122
 123
 124