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| author | Max Reitz <max@tyndur.org> | 2011-09-16 17:29:04 +0200 |
|---|---|---|
| committer | Blue Swirl <blauwirbel@gmail.com> | 2011-09-17 17:13:31 +0000 |
| commit | 5c6562c204699616766b0d50c9d8a84d4a029b77 (patch) | |
| tree | 9f545154f8ead024ad3057208399a426792a03d0 /target-i386 | |
| parent | 4e1837f855b88fdced2941b17509e13b0c8fa518 (diff) | |
| download | qemu-5c6562c204699616766b0d50c9d8a84d4a029b77.zip qemu-5c6562c204699616766b0d50c9d8a84d4a029b77.tar.gz qemu-5c6562c204699616766b0d50c9d8a84d4a029b77.tar.bz2 | |
target-i386: Fix several SSE3 instructions.
haddp[sd], hsubp[sd] and addsubp[sd] operate on floats, thus it is
necessary to use the appropriate floating point calculation functions.
If this is not done, those functions operate merely on integers, which
is not correct.
Signed-off-by: Max Reitz <max@tyndur.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'target-i386')
| -rw-r--r-- | target-i386/ops_sse.h | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/target-i386/ops_sse.h b/target-i386/ops_sse.h index 703be99..aa41d25 100644 --- a/target-i386/ops_sse.h +++ b/target-i386/ops_sse.h @@ -859,51 +859,51 @@ void helper_insertq_i(XMMReg *d, int index, int length) void helper_haddps(XMMReg *d, XMMReg *s) { XMMReg r; - r.XMM_S(0) = d->XMM_S(0) + d->XMM_S(1); - r.XMM_S(1) = d->XMM_S(2) + d->XMM_S(3); - r.XMM_S(2) = s->XMM_S(0) + s->XMM_S(1); - r.XMM_S(3) = s->XMM_S(2) + s->XMM_S(3); + r.XMM_S(0) = float32_add(d->XMM_S(0), d->XMM_S(1), &env->sse_status); + r.XMM_S(1) = float32_add(d->XMM_S(2), d->XMM_S(3), &env->sse_status); + r.XMM_S(2) = float32_add(s->XMM_S(0), s->XMM_S(1), &env->sse_status); + r.XMM_S(3) = float32_add(s->XMM_S(2), s->XMM_S(3), &env->sse_status); *d = r; } void helper_haddpd(XMMReg *d, XMMReg *s) { XMMReg r; - r.XMM_D(0) = d->XMM_D(0) + d->XMM_D(1); - r.XMM_D(1) = s->XMM_D(0) + s->XMM_D(1); + r.XMM_D(0) = float64_add(d->XMM_D(0), d->XMM_D(1), &env->sse_status); + r.XMM_D(1) = float64_add(s->XMM_D(0), s->XMM_D(1), &env->sse_status); *d = r; } void helper_hsubps(XMMReg *d, XMMReg *s) { XMMReg r; - r.XMM_S(0) = d->XMM_S(0) - d->XMM_S(1); - r.XMM_S(1) = d->XMM_S(2) - d->XMM_S(3); - r.XMM_S(2) = s->XMM_S(0) - s->XMM_S(1); - r.XMM_S(3) = s->XMM_S(2) - s->XMM_S(3); + r.XMM_S(0) = float32_sub(d->XMM_S(0), d->XMM_S(1), &env->sse_status); + r.XMM_S(1) = float32_sub(d->XMM_S(2), d->XMM_S(3), &env->sse_status); + r.XMM_S(2) = float32_sub(s->XMM_S(0), s->XMM_S(1), &env->sse_status); + r.XMM_S(3) = float32_sub(s->XMM_S(2), s->XMM_S(3), &env->sse_status); *d = r; } void helper_hsubpd(XMMReg *d, XMMReg *s) { XMMReg r; - r.XMM_D(0) = d->XMM_D(0) - d->XMM_D(1); - r.XMM_D(1) = s->XMM_D(0) - s->XMM_D(1); + r.XMM_D(0) = float64_sub(d->XMM_D(0), d->XMM_D(1), &env->sse_status); + r.XMM_D(1) = float64_sub(s->XMM_D(0), s->XMM_D(1), &env->sse_status); *d = r; } void helper_addsubps(XMMReg *d, XMMReg *s) { - d->XMM_S(0) = d->XMM_S(0) - s->XMM_S(0); - d->XMM_S(1) = d->XMM_S(1) + s->XMM_S(1); - d->XMM_S(2) = d->XMM_S(2) - s->XMM_S(2); - d->XMM_S(3) = d->XMM_S(3) + s->XMM_S(3); + d->XMM_S(0) = float32_sub(d->XMM_S(0), s->XMM_S(0), &env->sse_status); + d->XMM_S(1) = float32_add(d->XMM_S(1), s->XMM_S(1), &env->sse_status); + d->XMM_S(2) = float32_sub(d->XMM_S(2), s->XMM_S(2), &env->sse_status); + d->XMM_S(3) = float32_add(d->XMM_S(3), s->XMM_S(3), &env->sse_status); } void helper_addsubpd(XMMReg *d, XMMReg *s) { - d->XMM_D(0) = d->XMM_D(0) - s->XMM_D(0); - d->XMM_D(1) = d->XMM_D(1) + s->XMM_D(1); + d->XMM_D(0) = float64_sub(d->XMM_D(0), s->XMM_D(0), &env->sse_status); + d->XMM_D(1) = float64_add(d->XMM_D(1), s->XMM_D(1), &env->sse_status); } /* XXX: unordered */ |