valter/dosbox-staging
1
0
Fork 0
Code Releases Activity

add pagefault checking memory functions to the dynamic core

Browse source 
Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2424
This commit is contained in:
Sebastian Strohhäcker 2006-01-07 14:17:53 +00:00
parent 146d4b3380
commit 17ea37fe89
7 changed files with 377 additions and 75 deletions
Download patch file Download diff file Expand all files Collapse all files

34
src/hardware/memory.cpp
View file

@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: memory.cpp,v 1.41 2005-12-05 21:25:56 c2woody Exp $ */
/* $Id: memory.cpp,v 1.42 2006-01-07 14:17:53 c2woody Exp $ */
#include "dosbox.h"
#include "mem.h"
@ -437,6 +437,38 @@ void mem_unalignedwrited(PhysPt address,Bit32u val) {
}
bool mem_unalignedreadw_checked_x86(PhysPt address, Bit16u * val) {
Bit8u rval1,rval2;
if (mem_readb_checked_x86(address+0, &rval1)) return true;
if (mem_readb_checked_x86(address+1, &rval2)) return true;
*val=(Bit16u)(((Bit8u)rval1) | (((Bit8u)rval2) << 8));
return false;
}
bool mem_unalignedreadd_checked_x86(PhysPt address, Bit32u * val) {
Bit8u rval1,rval2,rval3,rval4;
if (mem_readb_checked_x86(address+0, &rval1)) return true;
if (mem_readb_checked_x86(address+1, &rval2)) return true;
if (mem_readb_checked_x86(address+2, &rval3)) return true;
if (mem_readb_checked_x86(address+3, &rval4)) return true;
*val=(Bit32u)(((Bit8u)rval1) | (((Bit8u)rval2) << 8) | (((Bit8u)rval3) << 16) | (((Bit8u)rval4) << 24));
return false;
}
bool mem_unalignedwritew_checked_x86(PhysPt address,Bit16u val) {
if (mem_writeb_checked_x86(address,(Bit8u)(val & 0xff))) return true;val>>=8;
if (mem_writeb_checked_x86(address+1,(Bit8u)(val & 0xff))) return true;
return false;
}
bool mem_unalignedwrited_checked_x86(PhysPt address,Bit32u val) {
if (mem_writeb_checked_x86(address,(Bit8u)(val & 0xff))) return true;val>>=8;
if (mem_writeb_checked_x86(address+1,(Bit8u)(val & 0xff))) return true;val>>=8;
if (mem_writeb_checked_x86(address+2,(Bit8u)(val & 0xff))) return true;val>>=8;
if (mem_writeb_checked_x86(address+3,(Bit8u)(val & 0xff))) return true;
return false;
}
Bit8u mem_readb(PhysPt address) {
return mem_readb_inline(address);
}