lib/3rdparty/softx86/softx86/fpu.c

   1 /*
   2  * fpu.c
   3  *
   4  * Copyright (C) 2003, 2004 Jonathan Campbell <jcampbell@mdjk.com>
   5  *
   6  * Handles 80x87 FPU opcodes by passing them down through callbacks
   7  * set up in application.
   8  *
   9  * The idea behind this is to handle these opcodes the same way the
  10  * 8086, 80286, 80386, and some 80486s handled them by passing them
  11  * off to an optional external FPU (possibly provided by another
  12  * library similar to this).
  13  *
  14  ***********************************************************************************
  15  * This program is free software; you can redistribute it and/or
  16  * modify it under the terms of the GNU General Public License
  17  * as published by the Free Software Foundation; either version 2
  18  * of the License, or (at your option) any later version.
  19  *
  20  * This program is distributed in the hope that it will be useful,
  21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  * GNU General Public License for more details.
  24  *
  25  * You should have received a copy of the GNU General Public License
  26  * along with this program; if not, write to the Free Software
  27  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  28  ************************************************************************************/
  29
  30 #include <softx86.h>
  31 #include <memory.h>
  32 #include <stdio.h>
  33 #include <string.h>
  34 #include "optable.h"
  35 #include "fpu.h"
  36
  37 int Sfx86OpcodeExec_fpuhandoff(sx86_ubyte opcode,softx86_ctx* ctx)
  38 {
  39         return ctx->callbacks->on_fpu_opcode_exec(ctx,ctx->ref_softx87_ctx,opcode);
  40 }
  41
  42 int Sfx86OpcodeDec_fpuhandoff(sx86_ubyte opcode,softx86_ctx* ctx,char buf[128])
  43 {
  44         return ctx->callbacks->on_fpu_opcode_dec(ctx,ctx->ref_softx87_ctx,opcode,buf);
  45 }