From: David Hildenbrand <david@redhat.com>
To: qemu-devel@nongnu.org
Cc: qemu-s390x@nongnu.org, Cornelia Huck <cohuck@redhat.com>,
Richard Henderson <richard.henderson@linaro.org>,
Thomas Huth <thuth@redhat.com>,
David Hildenbrand <david@redhat.com>
Subject: [PATCH v1 13/20] s390x/tcg: Implement 32/128 bit for VECTOR FP PERFORM SIGN OPERATION
Date: Wed, 30 Sep 2020 16:55:16 +0200 [thread overview]
Message-ID: <20200930145523.71087-14-david@redhat.com> (raw)
In-Reply-To: <20200930145523.71087-1-david@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
target/s390x/translate_vx.c.inc | 100 +++++++++++++++++++++-----------
1 file changed, 67 insertions(+), 33 deletions(-)
diff --git a/target/s390x/translate_vx.c.inc b/target/s390x/translate_vx.c.inc
index 0b21e8789f..ee79d97e19 100644
--- a/target/s390x/translate_vx.c.inc
+++ b/target/s390x/translate_vx.c.inc
@@ -2872,48 +2872,82 @@ static DisasJumpType op_vfpso(DisasContext *s, DisasOps *o)
const uint8_t fpf = get_field(s, m3);
const uint8_t m4 = get_field(s, m4);
const uint8_t m5 = get_field(s, m5);
+ const bool se = extract32(m4, 3, 1);
TCGv_i64 tmp;
- if (fpf != FPF_LONG || extract32(m4, 0, 3) || m5 > 2) {
+ if ((fpf != FPF_LONG && !s390_has_feat(S390_FEAT_VECTOR_ENH)) ||
+ extract32(m4, 0, 3) || m5 > 2) {
gen_program_exception(s, PGM_SPECIFICATION);
return DISAS_NORETURN;
}
- if (extract32(m4, 3, 1)) {
- tmp = tcg_temp_new_i64();
- read_vec_element_i64(tmp, v2, 0, ES_64);
- switch (m5) {
- case 0:
- /* sign bit is inverted (complement) */
- tcg_gen_xori_i64(tmp, tmp, 1ull << 63);
- break;
- case 1:
- /* sign bit is set to one (negative) */
- tcg_gen_ori_i64(tmp, tmp, 1ull << 63);
- break;
- case 2:
- /* sign bit is set to zero (positive) */
- tcg_gen_andi_i64(tmp, tmp, (1ull << 63) - 1);
- break;
+ switch (fpf) {
+ case FPF_SHORT:
+ if (!se) {
+ switch (m5) {
+ case 0:
+ /* sign bit is inverted (complement) */
+ gen_gvec_fn_2i(xori, ES_32, v1, v2, 1ull << 31);
+ break;
+ case 1:
+ /* sign bit is set to one (negative) */
+ gen_gvec_fn_2i(ori, ES_32, v1, v2, 1ull << 31);
+ break;
+ case 2:
+ /* sign bit is set to zero (positive) */
+ gen_gvec_fn_2i(andi, ES_32, v1, v2, (1ull << 31) - 1);
+ break;
+ }
+ return DISAS_NEXT;
}
- write_vec_element_i64(tmp, v1, 0, ES_64);
- tcg_temp_free_i64(tmp);
- } else {
- switch (m5) {
- case 0:
- /* sign bit is inverted (complement) */
- gen_gvec_fn_2i(xori, ES_64, v1, v2, 1ull << 63);
- break;
- case 1:
- /* sign bit is set to one (negative) */
- gen_gvec_fn_2i(ori, ES_64, v1, v2, 1ull << 63);
- break;
- case 2:
- /* sign bit is set to zero (positive) */
- gen_gvec_fn_2i(andi, ES_64, v1, v2, (1ull << 63) - 1);
- break;
+ break;
+ case FPF_LONG:
+ if (!se) {
+ switch (m5) {
+ case 0:
+ /* sign bit is inverted (complement) */
+ gen_gvec_fn_2i(xori, ES_64, v1, v2, 1ull << 63);
+ break;
+ case 1:
+ /* sign bit is set to one (negative) */
+ gen_gvec_fn_2i(ori, ES_64, v1, v2, 1ull << 63);
+ break;
+ case 2:
+ /* sign bit is set to zero (positive) */
+ gen_gvec_fn_2i(andi, ES_64, v1, v2, (1ull << 63) - 1);
+ break;
+ }
+ return DISAS_NEXT;
}
+ break;
+ case FPF_EXT:
+ /* Only a single element. */
+ break;
+ default:
+ gen_program_exception(s, PGM_SPECIFICATION);
+ return DISAS_NORETURN;
+ }
+
+ /* With a single element, we are only interested in bit 0. */
+ tmp = tcg_temp_new_i64();
+ read_vec_element_i64(tmp, v2, 0, ES_64);
+ switch (m5) {
+ case 0:
+ /* sign bit is inverted (complement) */
+ tcg_gen_xori_i64(tmp, tmp, 1ull << 63);
+ break;
+ case 1:
+ /* sign bit is set to one (negative) */
+ tcg_gen_ori_i64(tmp, tmp, 1ull << 63);
+ break;
+ case 2:
+ /* sign bit is set to zero (positive) */
+ tcg_gen_andi_i64(tmp, tmp, (1ull << 63) - 1);
+ break;
}
+ write_vec_element_i64(tmp, v1, 0, ES_64);
+ tcg_temp_free_i64(tmp);
+
return DISAS_NEXT;
}
--
2.26.2
next prev parent reply other threads:[~2020-09-30 15:03 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-30 14:55 [PATCH v1 00/20] s390x/tcg: Implement Vector enhancements facility and switch to z14 David Hildenbrand
2020-09-30 14:55 ` [PATCH v1 01/20] softfloat: Implement float128_(min|minnum|minnummag|max|maxnum|maxnummag) David Hildenbrand
2020-09-30 16:10 ` Alex Bennée
2020-10-01 12:40 ` David Hildenbrand
2020-10-01 13:15 ` Alex Bennée
2021-05-05 14:54 ` David Hildenbrand
2021-05-10 9:57 ` Alex Bennée
2021-05-10 10:00 ` David Hildenbrand
2020-09-30 14:55 ` [PATCH v1 02/20] s390x/tcg: Implement VECTOR BIT PERMUTE David Hildenbrand
2020-10-01 15:17 ` Richard Henderson
2020-10-01 17:28 ` David Hildenbrand
2020-09-30 14:55 ` [PATCH v1 03/20] s390x/tcg: Implement VECTOR MULTIPLY SUM LOGICAL David Hildenbrand
2020-10-01 15:26 ` Richard Henderson
2020-10-01 17:30 ` David Hildenbrand
2020-09-30 14:55 ` [PATCH v1 04/20] s390x/tcg: Implement 32/128 bit for VECTOR FP ADD David Hildenbrand
2020-10-01 15:45 ` Richard Henderson
2020-10-01 16:08 ` Richard Henderson
2020-10-01 17:08 ` David Hildenbrand
2020-09-30 14:55 ` [PATCH v1 05/20] s390x/tcg: Implement 32/128 bit for VECTOR FP DIVIDE David Hildenbrand
2020-09-30 14:55 ` [PATCH v1 06/20] s390x/tcg: Implement 32/128 bit for VECTOR FP MULTIPLY David Hildenbrand
2020-09-30 14:55 ` [PATCH v1 07/20] s390x/tcg: Implement 32/128 bit for VECTOR FP SUBTRACT David Hildenbrand
2020-09-30 14:55 ` [PATCH v1 08/20] s390x/tcg: Implement 32/128 bit for VECTOR FP COMPARE (AND SIGNAL) SCALAR David Hildenbrand
2020-10-01 15:52 ` Richard Henderson
2020-09-30 14:55 ` [PATCH v1 09/20] s390x/tcg: Implement 32/128 bit for VECTOR FP COMPARE * David Hildenbrand
2020-10-01 16:12 ` Richard Henderson
2020-09-30 14:55 ` [PATCH v1 10/20] s390x/tcg: Implement 32/128 bit for VECTOR LOAD FP INTEGER David Hildenbrand
2020-09-30 14:55 ` [PATCH v1 11/20] s390x/tcg: Implement 64 bit for VECTOR FP LOAD LENGTHENED David Hildenbrand
2020-10-01 16:19 ` Richard Henderson
2020-09-30 14:55 ` [PATCH v1 12/20] s390x/tcg: Implement 128 bit for VECTOR FP LOAD ROUNDED David Hildenbrand
2020-10-01 16:21 ` Richard Henderson
2020-09-30 14:55 ` David Hildenbrand [this message]
2020-10-01 16:24 ` [PATCH v1 13/20] s390x/tcg: Implement 32/128 bit for VECTOR FP PERFORM SIGN OPERATION Richard Henderson
2020-09-30 14:55 ` [PATCH v1 14/20] s390x/tcg: Implement 32/128 bit for VECTOR FP SQUARE ROOT David Hildenbrand
2020-09-30 14:55 ` [PATCH v1 15/20] s390x/tcg: Implement 32/128 bit for VECTOR FP TEST DATA CLASS IMMEDIATE David Hildenbrand
2020-10-01 16:30 ` Richard Henderson
2020-09-30 14:55 ` [PATCH v1 16/20] s390x/tcg: Implement 32/128bit for VECTOR FP MULTIPLY AND (ADD|SUBTRACT) David Hildenbrand
2020-09-30 14:55 ` [PATCH v1 17/20] s390x/tcg: Implement VECTOR FP NEGATIVE " David Hildenbrand
2020-09-30 14:55 ` [PATCH v1 18/20] s390x/tcg: Implement VECTOR FP (MAXIMUM|MINIMUM) David Hildenbrand
2020-10-01 16:49 ` Richard Henderson
2020-09-30 14:55 ` [PATCH v1 19/20] s390x/tcg: We support Vector enhancements facility David Hildenbrand
2020-10-01 16:50 ` Richard Henderson
2020-09-30 14:55 ` [PATCH v1 20/20] s390x/cpumodel: Bump up QEMU model to a stripped-down IBM z14 GA2 David Hildenbrand
2020-10-01 16:52 ` Richard Henderson
2020-09-30 15:35 ` [PATCH v1 00/20] s390x/tcg: Implement Vector enhancements facility and switch to z14 no-reply
2020-10-01 15:07 ` Richard Henderson
2020-10-07 13:09 ` David Hildenbrand
2021-05-05 10:55 ` David Hildenbrand
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200930145523.71087-14-david@redhat.com \
--to=david@redhat.com \
--cc=cohuck@redhat.com \
--cc=qemu-devel@nongnu.org \
--cc=qemu-s390x@nongnu.org \
--cc=richard.henderson@linaro.org \
--cc=thuth@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).