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 "segments.h"
  44 #include "symtab.h"
  45 #include "asmcode.h"
  46
  47
  48
  49 /*****************************************************************************/
  50 /*                                   Code                                    */
  51 /*****************************************************************************/
  52
  53
  54
  55 CodeMark GetCodePos (void)
  56 /* Get a marker pointing to the current output position */
  57 {
  58     return CS_GetEntryCount (CS->Code);
  59 }
  60
  61
  62
  63 void RemoveCode (CodeMark M)
  64 /* Remove all code after the given code marker */
  65 {
  66     CS_DelCodeAfter (CS->Code, M);
  67 }
  68
  69
  70
  71 void MoveCode (CodeMark Start, CodeMark End, CodeMark Target)
  72 /* Move the code between Start (inclusive) and End (exclusive) to
  73  * (before) Target.
  74  */
  75 {
  76     CS_MoveEntries (CS->Code, Start, End - Start, Target);
  77 }
  78
  79
  80
  81 void WriteOutput (FILE* F)
  82 /* Write the final output to a file */
  83 {
  84     SymTable* SymTab;
  85     SymEntry* Entry;
  86
  87     /* Output the global data segment */
  88     CHECK (CS_GetEntryCount (CS->Code) == 0);
  89     OutputSegments (CS, F);
  90
  91     /* Output all global or referenced functions */
  92     SymTab = GetGlobalSymTab ();
  93     Entry  = SymTab->SymHead;
  94     while (Entry) {
  95         if (IsTypeFunc (Entry->Type)            &&
  96             (Entry->Flags & SC_DEF) != 0        &&
  97             (Entry->Flags & (SC_REF | SC_EXTERN)) != 0) {
  98             /* Function which is defined and referenced or extern */
  99             CS_MergeLabels (Entry->V.F.Seg->Code);
 100             RunOpt (Entry->V.F.Seg->Code);
 101             OutputSegments (Entry->V.F.Seg, F);
 102         }
 103         Entry = Entry->NextSym;
 104     }
 105 }
 106
 107
 108