git.sur5r.net Git - cc65/blob - src/ca65/ea.h

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                  ea65.h                                   */
   4 /*                                                                           */
   5 /*                  Effective address structure definition                   */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 1998-2004 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 EA_H
  37 #define EA_H
  38
  39
  40
  41 /*****************************************************************************/
  42 /*                                   Data                                    */
  43 /*****************************************************************************/
  44
  45
  46
  47 /* GetEA result struct */
  48 typedef struct EffAddr EffAddr;
  49 struct EffAddr {
  50     /* First three fields get filled when calling GetEA */
  51     unsigned long       AddrModeSet;    /* Possible addressing modes */
  52     struct ExprNode*    Expr;           /* Expression if any (NULL otherwise) */
  53     unsigned            Reg;            /* Register number in sweet16 mode */
  54
  55     /* The following fields are used inside instr.c */
  56     unsigned            AddrMode;       /* Actual addressing mode used */
  57     unsigned long       AddrModeBit;    /* Addressing mode as bit mask */
  58     unsigned char       Opcode;         /* Opcode */
  59 };
  60
  61
  62
  63 /* End of ea.h */
  64
  65 #endif
  66
  67
  68