git.sur5r.net Git - cc65/blob - src/da65/code.h

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                  code.h                                   */
   4 /*                                                                           */
   5 /*                          Binary code management                           */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 2000-2003 Ullrich von Bassewitz                                       */
  10 /*               Römerstrasse 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 #ifndef CODE_H
  37 #define CODE_H
  38
  39
  40
  41 /*****************************************************************************/
  42 /*                                   Data                                    */
  43 /*****************************************************************************/
  44
  45
  46
  47 extern unsigned char CodeBuf [0x10000];         /* Code buffer */
  48 extern unsigned long CodeStart;                 /* Start address */
  49 extern unsigned long CodeEnd;                   /* End address */
  50 extern unsigned long PC;                        /* Current PC */
  51
  52
  53
  54 /*****************************************************************************/
  55 /*                                   Code                                    */
  56 /*****************************************************************************/
  57
  58
  59
  60 void LoadCode (void);
  61 /* Load the code from the given file */
  62
  63 unsigned char GetCodeByte (unsigned Addr);
  64 /* Get a byte from the given address */
  65
  66 unsigned GetCodeDByte (unsigned Addr);
  67 /* Get a dbyte from the given address */
  68
  69 unsigned GetCodeWord (unsigned Addr);
  70 /* Get a word from the given address */
  71
  72 unsigned long GetCodeDWord (unsigned Addr);
  73 /* Get a dword from the given address */
  74
  75 unsigned GetRemainingBytes (void);
  76 /* Return the number of remaining code bytes */
  77
  78 int CodeLeft (void);
  79 /* Return true if there are code bytes left */
  80
  81 void ResetCode (void);
  82 /* Reset the code input to start over for the next pass */
  83
  84
  85
  86 /* End of code.h */
  87 #endif
  88
  89
  90