OpenE2K/qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

Avoid host FPE for overflowing division on MIPS, by Richard Sandiford.

Browse Source 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3856 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-12-25 03:18:19 +00:00
parent 6d35524c40
commit 306ab3e86a
1 changed files with 10 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
target-mips/op_helper.c
View File

@ -230,9 +230,16 @@ void do_div (void)
void do_ddiv (void) void do_ddiv (void)
{ {
if (T1 != 0) { if (T1 != 0) {
lldiv_t res = lldiv((int64_t)T0, (int64_t)T1); int64_t arg0 = (int64_t)T0;
env->LO[0][env->current_tc] = res.quot; int64_t arg1 = (int64_t)T1;
env->HI[0][env->current_tc] = res.rem; if (arg0 == ((int64_t)-1 << 63) && arg1 == (int64_t)-1) {
env->LO[0][env->current_tc] = arg0;
env->HI[0][env->current_tc] = 0;
} else {
lldiv_t res = lldiv(arg0, arg1);
env->LO[0][env->current_tc] = res.quot;
env->HI[0][env->current_tc] = res.rem;
}
} }
} }