git.sur5r.net Git - cc65/blob - src/sp65/asm.c

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                   asm.c                                   */
   4 /*                                                                           */
   5 /*          Assembler output for the sp65 sprite and bitmap utility          */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 2012,      Ullrich von Bassewitz                                      */
  10 /*                Roemerstrasse 52                                           */
  11 /*                D-70794 Filderstadt                                        */
  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 #include <errno.h>
  37 #include <stdio.h>
  38 #include <string.h>
  39
  40 /* common */
  41 #include "cmdline.h"
  42 #include "version.h"
  43
  44 /* sp65 */
  45 #include "bin.h"
  46 #include "error.h"
  47
  48
  49
  50 /*****************************************************************************/
  51 /*                                   Code                                    */
  52 /*****************************************************************************/
  53
  54
  55
  56 void WiteAsmFile (const char* Name, const StrBuf* Data)
  57 /* Write the contents of Data to the given file in assembler (ca65) format */
  58 {
  59     const char* D;
  60     unsigned    Size;
  61
  62     /* Open the output file */
  63     FILE* F = fopen (Name, "w");
  64     if (F == 0) {
  65         Error ("Cannot open output file `%s': %s", Name, strerror (errno));
  66     }
  67
  68     /* Write a readable header */
  69     fprintf (F,
  70              ";\n"
  71              "; This file was generated by %s %s\n"
  72              ";\n"
  73              "\n",
  74              ProgName,
  75              GetVersionAsString ());
  76
  77     /* Write the data */
  78     D    = SB_GetConstBuf (Data);
  79     Size = SB_GetLen (Data);
  80     while (Size) {
  81
  82         unsigned I;
  83
  84         /* Output one line */
  85         unsigned Chunk = Size;
  86         if (Chunk > 16) {
  87             Chunk = 16;
  88         }
  89         fprintf (F, "        .byte   $%02X", (*D++ & 0xFF));
  90         for (I = 1; I < Chunk; ++I) {
  91             fprintf (F, ",%02X", (*D++ & 0xFF));
  92         }
  93         fputc ('\n', F);
  94
  95         /* Bump the counters */
  96         Size -= Chunk;
  97     }
  98
  99     /* Add an empty line at the end */
 100     fputc ('\n', F);
 101
 102     /* Close the file */
 103     if (fclose (F) != 0) {
 104         Error ("Error closing output file `%s': %s", Name, strerror (errno));
 105     }
 106 }
 107
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