git.sur5r.net Git - cc65/blob - src/sim65/cpucore.c

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                 cpucore.c                                 */
   4 /*                                                                           */
   5 /*                     CPU definition for the simulator                      */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 2003-2012, 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 <string.h>
  37
  38 /* common */
  39 #include "xmalloc.h"
  40
  41 /* sim65 */
  42 #include "cpucore.h"
  43 #include "error.h"
  44
  45
  46
  47 /*****************************************************************************/
  48 /*                                   Data                                    */
  49 /*****************************************************************************/
  50
  51
  52
  53 /* The actual CPU instance */
  54 CPUCore*        CPU = 0;
  55
  56
  57
  58 /*****************************************************************************/
  59 /*                                   Code                                    */
  60 /*****************************************************************************/
  61
  62
  63
  64 CPUCore* NewCPUCore (const char* Name, unsigned AddrSpaceSize)
  65 /* Create and return a new CPU including it's address space */
  66 {
  67     CPUCore* C;
  68
  69     /* Make sure this is a 6502 CPU for now */
  70     if (strcmp (Name, "6502") != 0) {
  71         Error ("Unknown CPU type `%s'", Name);
  72     }
  73
  74     /* Allocate memory */
  75     C = xmalloc (sizeof (*C));
  76
  77     /* Initialize the data */
  78     C->Handle = 0;              /* ### */
  79     C->AS     = NewAddressSpace (AddrSpaceSize);
  80
  81     /* Return the new CPU core */
  82     return C;
  83 }
  84
  85
  86