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[Qemu-arm] [PATCH v2 10/32] arm/translate-a64: add FP16 FADD/FABD/FSUB/F
From: |
Alex Bennée |
Subject: |
[Qemu-arm] [PATCH v2 10/32] arm/translate-a64: add FP16 FADD/FABD/FSUB/FMUL/FDIV to simd_three_reg_same_fp16 |
Date: |
Thu, 8 Feb 2018 17:31:35 +0000 |
The fprintf is only there for debugging as the skeleton is added to,
it will be removed once the skeleton is complete.
Signed-off-by: Alex Bennée <address@hidden>
---
v2
- add absh helper
- fix checkpatch violation
---
target/arm/helper-a64.c | 9 +++++++++
target/arm/helper-a64.h | 5 +++++
target/arm/translate-a64.c | 28 ++++++++++++++++++++++++++++
3 files changed, 42 insertions(+)
diff --git a/target/arm/helper-a64.c b/target/arm/helper-a64.c
index fddd5d242b..25e45121af 100644
--- a/target/arm/helper-a64.c
+++ b/target/arm/helper-a64.c
@@ -579,6 +579,11 @@ uint64_t HELPER(paired_cmpxchg64_be_parallel)(CPUARMState
*env, uint64_t addr,
#define ADVSIMD_HELPER(name, suffix) HELPER(glue(glue(advsimd_, name), suffix))
+float16 ADVSIMD_HELPER(abs, h) (float16 a)
+{
+ return float16_abs(a);
+}
+
#define ADVSIMD_HALFOP(name) \
float16 ADVSIMD_HELPER(name, h)(float16 a, float16 b, void *fpstp) \
{ \
@@ -586,6 +591,10 @@ float16 ADVSIMD_HELPER(name, h)(float16 a, float16 b, void
*fpstp) \
return float16_ ## name(a, b, fpst); \
}
+ADVSIMD_HALFOP(add)
+ADVSIMD_HALFOP(sub)
+ADVSIMD_HALFOP(mul)
+ADVSIMD_HALFOP(div)
ADVSIMD_HALFOP(min)
ADVSIMD_HALFOP(max)
ADVSIMD_HALFOP(minnum)
diff --git a/target/arm/helper-a64.h b/target/arm/helper-a64.h
index b69a557241..5cbabcc27a 100644
--- a/target/arm/helper-a64.h
+++ b/target/arm/helper-a64.h
@@ -48,6 +48,11 @@ DEF_HELPER_FLAGS_4(paired_cmpxchg64_le_parallel,
TCG_CALL_NO_WG,
DEF_HELPER_FLAGS_4(paired_cmpxchg64_be, TCG_CALL_NO_WG, i64, env, i64, i64,
i64)
DEF_HELPER_FLAGS_4(paired_cmpxchg64_be_parallel, TCG_CALL_NO_WG,
i64, env, i64, i64, i64)
+DEF_HELPER_1(advsimd_absh, f16, f16)
+DEF_HELPER_3(advsimd_addh, f16, f16, f16, ptr)
+DEF_HELPER_3(advsimd_subh, f16, f16, f16, ptr)
+DEF_HELPER_3(advsimd_mulh, f16, f16, f16, ptr)
+DEF_HELPER_3(advsimd_divh, f16, f16, f16, ptr)
DEF_HELPER_3(advsimd_maxh, f16, f16, f16, ptr)
DEF_HELPER_3(advsimd_minh, f16, f16, f16, ptr)
DEF_HELPER_3(advsimd_maxnumh, f16, f16, f16, ptr)
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 5392f83794..93d71d8b2c 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -9849,6 +9849,34 @@ static void disas_simd_three_reg_same_fp16(DisasContext
*s, uint32_t insn)
read_vec_element_i32(s, tcg_op2, rm, pass, MO_16);
switch (fpopcode) {
+ case 0x0: /* FMAXNM */
+ gen_helper_advsimd_maxnumh(tcg_res, tcg_op1, tcg_op2, fpst);
+ break;
+ case 0x2: /* FADD */
+ gen_helper_advsimd_addh(tcg_res, tcg_op1, tcg_op2, fpst);
+ break;
+ case 0x6: /* FMAX */
+ gen_helper_advsimd_maxh(tcg_res, tcg_op1, tcg_op2, fpst);
+ break;
+ case 0x8: /* FMINNM */
+ gen_helper_advsimd_minnumh(tcg_res, tcg_op1, tcg_op2, fpst);
+ break;
+ case 0xa: /* FSUB */
+ gen_helper_advsimd_subh(tcg_res, tcg_op1, tcg_op2, fpst);
+ break;
+ case 0xe: /* FMIN */
+ gen_helper_advsimd_minh(tcg_res, tcg_op1, tcg_op2, fpst);
+ break;
+ case 0x13: /* FMUL */
+ gen_helper_advsimd_mulh(tcg_res, tcg_op1, tcg_op2, fpst);
+ break;
+ case 0x17: /* FDIV */
+ gen_helper_advsimd_divh(tcg_res, tcg_op1, tcg_op2, fpst);
+ break;
+ case 0x1a: /* FABD */
+ gen_helper_advsimd_subh(tcg_res, tcg_op1, tcg_op2, fpst);
+ gen_helper_advsimd_absh(tcg_res, tcg_res);
+ break;
default:
fprintf(stderr, "%s: insn %#04x, fpop %#2x @ %#" PRIx64 "\n",
__func__, insn, fpopcode, s->pc);
--
2.15.1
- Re: [Qemu-arm] [Qemu-devel] [PATCH v2 03/32] target/arm/cpu64: allow fp16 to be disabled, (continued)
- [Qemu-arm] [PATCH v2 01/32] include/exec/helper-head.h: support f16 in helper calls, Alex Bennée, 2018/02/08
- [Qemu-arm] [PATCH v2 04/32] target/arm/cpu.h: update comment for half-precision values, Alex Bennée, 2018/02/08
- [Qemu-arm] [PATCH v2 02/32] target/arm/cpu64: introduce ARM_V8_FP16 feature bit, Alex Bennée, 2018/02/08
- [Qemu-arm] [PATCH v2 06/32] target/arm/helper: pass explicit fpst to set_rmode, Alex Bennée, 2018/02/08
- [Qemu-arm] [PATCH v2 08/32] arm/translate-a64: handle_3same_64 comment fix, Alex Bennée, 2018/02/08
- [Qemu-arm] [PATCH v2 05/32] target/arm/cpu.h: add additional float_status flags, Alex Bennée, 2018/02/08
- [Qemu-arm] [PATCH v2 10/32] arm/translate-a64: add FP16 FADD/FABD/FSUB/FMUL/FDIV to simd_three_reg_same_fp16,
Alex Bennée <=
- [Qemu-arm] [PATCH v2 11/32] arm/translate-a64: add FP16 F[A]C[EQ/GE/GT] to simd_three_reg_same_fp16, Alex Bennée, 2018/02/08
- [Qemu-arm] [PATCH v2 09/32] arm/translate-a64: initial decode for simd_three_reg_same_fp16, Alex Bennée, 2018/02/08
- [Qemu-arm] [PATCH v2 07/32] arm/translate-a64: implement half-precision F(MIN|MAX)(V|NMV), Alex Bennée, 2018/02/08