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Fix mask calculate when MOV_b is right on the word boundary.

This commit is contained in:
steve 2002-11-05 03:46:44 +00:00
parent 8463dcc878
commit 4e5dd49a37
1 changed files with 12 additions and 3 deletions
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15
vvp/vthread.cc
View File

@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: vthread.cc,v 1.89 2002/09/21 23:47:30 steve Exp $"
#ident "$Id: vthread.cc,v 1.90 2002/11/05 03:46:44 steve Exp $"
#endif
# include "vthread.h"
@ -1632,9 +1632,15 @@ bool of_MOV(vthread_t thr, vvp_code_t cp)
unsigned addr2 = (test_addr) / (CPU_WORD_BITS/2);
if (addr1 == addr2) {
unsigned sh1 = cp->bit_idx[0] % (CPU_WORD_BITS/2);
unsigned sh2 = (test_addr+1) % (CPU_WORD_BITS/2);
unsigned sh2 = (test_addr % (CPU_WORD_BITS/2)) + 1;
unsigned long mask;
if ( (sh2-sh1) == CPU_WORD_BITS/2)
mask = 0UL;
else
mask = ULONG_MAX << ((sh2 - sh1) * 2UL);
unsigned long mask = ULONG_MAX << ((sh2 - sh1) * 2UL);
mask = (~mask) << sh1*2UL;
cp->number = ~mask;
@ -2422,6 +2428,9 @@ bool of_CALL_UFUNC(vthread_t thr, vvp_code_t cp)
/*
* $Log: vthread.cc,v $
* Revision 1.90 2002/11/05 03:46:44 steve
* Fix mask calculate when MOV_b is right on the word boundary.
*
* Revision 1.89 2002/09/21 23:47:30 steve
* Remove some now useless asserts.
*