diff --git a/bochs/patches/patch.seg-limit-real b/bochs/patches/patch.seg-limit-real new file mode 100644 index 000000000..8b16d8a5a --- /dev/null +++ b/bochs/patches/patch.seg-limit-real @@ -0,0 +1,44 @@ +---------------------------------------------------------------------- +Patch name: patch.seg-limit-real +Author: Bryce Denney +Date: Wed Jun 13 10:54:16 EDT 2001 + +Detailed description: +See sourceforge bug +[ #429383 ] real mode seg limit: Bochs does #GP when Pentium does not +URL is +http://bochs.sf.net/cgi-bin/topper.pl?sftype=bug&id=429383 + +This patch may be applied if we can convince ourselves that real +processors do not do this exception. The Intel docs say that the +exception should happen under these circumstances, but Kasper Andersen +reports that his pentium does not. + +Apply patch to: + current CVS +Instructions: + To patch, go to main bochs directory. + Type "patch -p0 < THIS_PATCH_FILE". +---------------------------------------------------------------------- +Index: cpu/access.cc +=================================================================== +RCS file: /cvsroot/bochs/bochs/cpu/access.cc,v +retrieving revision 1.7 +diff -u -r1.7 access.cc +--- cpu/access.cc 2001/05/30 18:56:01 1.7 ++++ cpu/access.cc 2001/06/11 16:09:08 +@@ -98,10 +98,10 @@ + + else { /* real mode */ + if ( (offset + length - 1) > seg->cache.u.segment.limit_scaled) { +- //BX_INFO(("write_virtual_checks() SEG EXCEPTION: %x:%x + %x", +- // (unsigned) seg->selector.value, (unsigned) offset, (unsigned) length)); +- if (seg == & BX_CPU_THIS_PTR sregs[2]) exception(BX_SS_EXCEPTION, 0, 0); +- else exception(BX_GP_EXCEPTION, 0, 0); ++ BX_ERROR(("write_virtual_checks() SEG EXCEPTION IGNORED: %x:%x + %x", ++ (unsigned) seg->selector.value, (unsigned) offset, (unsigned) length)); ++ //if (seg == & BX_CPU_THIS_PTR sregs[2]) exception(BX_SS_EXCEPTION, 0, 0); ++ //else exception(BX_GP_EXCEPTION, 0, 0); + } + } + }