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[PATCH v1 12/20] s390x/tcg: Implement 128 bit for VECTOR FP LOAD ROUNDED
From: |
David Hildenbrand |
Subject: |
[PATCH v1 12/20] s390x/tcg: Implement 128 bit for VECTOR FP LOAD ROUNDED |
Date: |
Wed, 30 Sep 2020 16:55:15 +0200 |
128 bit -> 64 bit, there is only a single element to process.
Signed-off-by: David Hildenbrand <david@redhat.com>
---
target/s390x/helper.h | 1 +
target/s390x/translate_vx.c.inc | 11 ++++++++++-
target/s390x/vec_fpu_helper.c | 19 +++++++++++++++++++
3 files changed, 30 insertions(+), 1 deletion(-)
diff --git a/target/s390x/helper.h b/target/s390x/helper.h
index e643672ec4..79e3fa14f8 100644
--- a/target/s390x/helper.h
+++ b/target/s390x/helper.h
@@ -311,6 +311,7 @@ DEF_HELPER_FLAGS_4(gvec_vfll32s, TCG_CALL_NO_WG, void, ptr,
cptr, env, i32)
DEF_HELPER_FLAGS_4(gvec_vfll64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
DEF_HELPER_FLAGS_4(gvec_vflr64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
DEF_HELPER_FLAGS_4(gvec_vflr64s, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
+DEF_HELPER_FLAGS_4(gvec_vflr128, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
DEF_HELPER_FLAGS_5(gvec_vfm32, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32)
DEF_HELPER_FLAGS_5(gvec_vfm32s, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env,
i32)
DEF_HELPER_FLAGS_5(gvec_vfm64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32)
diff --git a/target/s390x/translate_vx.c.inc b/target/s390x/translate_vx.c.inc
index ff697f3470..0b21e8789f 100644
--- a/target/s390x/translate_vx.c.inc
+++ b/target/s390x/translate_vx.c.inc
@@ -2785,8 +2785,17 @@ static DisasJumpType op_vcdg(DisasContext *s, DisasOps
*o)
}
break;
case 0xc5:
- if (fpf == FPF_LONG) {
+ switch (fpf) {
+ case FPF_LONG:
fn = se ? gen_helper_gvec_vflr64s : gen_helper_gvec_vflr64;
+ break;
+ case FPF_EXT:
+ if (s390_has_feat(S390_FEAT_VECTOR_ENH)) {
+ fn = gen_helper_gvec_vflr128;
+ }
+ break;
+ default:
+ break;
}
break;
default:
diff --git a/target/s390x/vec_fpu_helper.c b/target/s390x/vec_fpu_helper.c
index 5ded2ccbcd..f8ebd04516 100644
--- a/target/s390x/vec_fpu_helper.c
+++ b/target/s390x/vec_fpu_helper.c
@@ -658,6 +658,25 @@ void HELPER(gvec_vflr64s)(void *v1, const void *v2,
CPUS390XState *env,
vflr64(v1, v2, env, true, XxC, erm, GETPC());
}
+void HELPER(gvec_vflr128)(void *v1, const void *v2, CPUS390XState *env,
+ uint32_t desc)
+{
+ const uint8_t erm = extract32(simd_data(desc), 4, 4);
+ const bool XxC = extract32(simd_data(desc), 2, 1);
+ uint8_t vxc, vec_exc = 0;
+ int old_mode;
+ float64 ret;
+
+ old_mode = s390_swap_bfp_rounding_mode(env, erm);
+ ret = float128_to_float64(s390_vec_read_float128(v2, 0), &env->fpu_status);
+ vxc = check_ieee_exc(env, 0, XxC, &vec_exc);
+ s390_restore_bfp_rounding_mode(env, old_mode);
+ handle_ieee_exc(env, vxc, vec_exc, GETPC());
+
+ /* place at even element, odd element is unpredictable */
+ s390_vec_write_float64(v1, 0, ret);
+}
+
#define DEF_GVEC_FVM(BITS)
\
void HELPER(gvec_vfm##BITS)(void *v1, const void *v2, const void *v3,
\
CPUS390XState *env, uint32_t desc)
\
--
2.26.2
- [PATCH v1 00/20] s390x/tcg: Implement Vector enhancements facility and switch to z14, David Hildenbrand, 2020/09/30
- [PATCH v1 01/20] softfloat: Implement float128_(min|minnum|minnummag|max|maxnum|maxnummag), David Hildenbrand, 2020/09/30
- [PATCH v1 02/20] s390x/tcg: Implement VECTOR BIT PERMUTE, David Hildenbrand, 2020/09/30
- [PATCH v1 03/20] s390x/tcg: Implement VECTOR MULTIPLY SUM LOGICAL, David Hildenbrand, 2020/09/30
- [PATCH v1 05/20] s390x/tcg: Implement 32/128 bit for VECTOR FP DIVIDE, David Hildenbrand, 2020/09/30
- [PATCH v1 04/20] s390x/tcg: Implement 32/128 bit for VECTOR FP ADD, David Hildenbrand, 2020/09/30
- [PATCH v1 06/20] s390x/tcg: Implement 32/128 bit for VECTOR FP MULTIPLY, David Hildenbrand, 2020/09/30
- [PATCH v1 07/20] s390x/tcg: Implement 32/128 bit for VECTOR FP SUBTRACT, David Hildenbrand, 2020/09/30
- [PATCH v1 09/20] s390x/tcg: Implement 32/128 bit for VECTOR FP COMPARE *, David Hildenbrand, 2020/09/30
- [PATCH v1 08/20] s390x/tcg: Implement 32/128 bit for VECTOR FP COMPARE (AND SIGNAL) SCALAR, David Hildenbrand, 2020/09/30
- [PATCH v1 12/20] s390x/tcg: Implement 128 bit for VECTOR FP LOAD ROUNDED,
David Hildenbrand <=
- [PATCH v1 10/20] s390x/tcg: Implement 32/128 bit for VECTOR LOAD FP INTEGER, David Hildenbrand, 2020/09/30
- [PATCH v1 13/20] s390x/tcg: Implement 32/128 bit for VECTOR FP PERFORM SIGN OPERATION, David Hildenbrand, 2020/09/30
- [PATCH v1 11/20] s390x/tcg: Implement 64 bit for VECTOR FP LOAD LENGTHENED, David Hildenbrand, 2020/09/30
- [PATCH v1 15/20] s390x/tcg: Implement 32/128 bit for VECTOR FP TEST DATA CLASS IMMEDIATE, David Hildenbrand, 2020/09/30
- [PATCH v1 17/20] s390x/tcg: Implement VECTOR FP NEGATIVE MULTIPLY AND (ADD|SUBTRACT), David Hildenbrand, 2020/09/30
- [PATCH v1 16/20] s390x/tcg: Implement 32/128bit for VECTOR FP MULTIPLY AND (ADD|SUBTRACT), David Hildenbrand, 2020/09/30
- [PATCH v1 14/20] s390x/tcg: Implement 32/128 bit for VECTOR FP SQUARE ROOT, David Hildenbrand, 2020/09/30
- [PATCH v1 18/20] s390x/tcg: Implement VECTOR FP (MAXIMUM|MINIMUM), David Hildenbrand, 2020/09/30
- [PATCH v1 19/20] s390x/tcg: We support Vector enhancements facility, David Hildenbrand, 2020/09/30
- [PATCH v1 20/20] s390x/cpumodel: Bump up QEMU model to a stripped-down IBM z14 GA2, David Hildenbrand, 2020/09/30