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 /* b6502 */
  40 #include "codeopt.h"
  41 #include "codeseg.h"
  42 #include "dataseg.h"
  43
  44 /* cc65 */
  45 #include "symtab.h"
  46 #include "asmcode.h"
  47
  48
  49
  50 /*****************************************************************************/
  51 /*                                   Code                                    */
  52 /*****************************************************************************/
  53
  54
  55
  56 void AddCodeHint (const char* Hint)
  57 /* Add an optimizer hint */
  58 {
  59     /* ### AddCodeLine ("+%s", Hint); */
  60 }
  61
  62
  63
  64 CodeMark GetCodePos (void)
  65 /* Get a marker pointing to the current output position */
  66 {
  67     return GetCodeSegEntries (CS);
  68 }
  69
  70
  71
  72 void RemoveCode (CodeMark M)
  73 /* Remove all code after the given code marker */
  74 {
  75     DelCodeSegAfter (CS, M);
  76 }
  77
  78
  79
  80 static void PrintFunctionHeader (FILE* F, SymEntry* Entry)
  81 {
  82     /* Print a comment with the function signature */
  83     fprintf (F,
  84              "; ---------------------------------------------------------------\n"
  85              "; ");
  86     PrintFuncSig (F, Entry->Name, Entry->Type);
  87     fprintf (F,
  88              "\n"
  89              "; ---------------------------------------------------------------\n"
  90              "\n");
  91 }
  92
  93
  94
  95 void WriteOutput (FILE* F)
  96 /* Write the final output to a file */
  97 {
  98     SymTable* SymTab;
  99     SymEntry* Entry;
 100
 101     /* Output the data segment (the global code segment should be empty) */
 102     OutputDataSeg (F, DS);
 103     CHECK (GetCodeSegEntries (CS) == 0);
 104
 105     /* Output all global or referenced functions */
 106     SymTab = GetGlobalSymTab ();
 107     Entry  = SymTab->SymHead;
 108     while (Entry) {
 109         if (IsTypeFunc (Entry->Type)            &&
 110             (Entry->Flags & SC_DEF) != 0        &&
 111             (Entry->Flags & (SC_REF | SC_EXTERN)) != 0) {
 112             /* Function which is defined and referenced or extern */
 113             PrintFunctionHeader (F, Entry);
 114             MergeCodeLabels (Entry->V.F.CS);
 115             RunOpt (Entry->V.F.CS);
 116             fprintf (F, "; Data segment for function %s:\n", Entry->Name);
 117             OutputDataSeg (F, Entry->V.F.DS);
 118             fprintf (F, "; Code segment for function %s:\n", Entry->Name);
 119             OutputCodeSeg (F, Entry->V.F.CS);
 120         }
 121         Entry = Entry->NextSym;
 122     }
 123 }
 124
 125
 126