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[Qemu-devel] [PATCH 17/19] target/hppa: Convert fp fused multiply-add in
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH 17/19] target/hppa: Convert fp fused multiply-add insns |
Date: |
Sat, 17 Feb 2018 12:31:30 -0800 |
Signed-off-by: Richard Henderson <address@hidden>
---
target/hppa/translate.c | 79 ++++++++++++++++--------------------------------
target/hppa/insns.decode | 12 ++++++++
2 files changed, 38 insertions(+), 53 deletions(-)
diff --git a/target/hppa/translate.c b/target/hppa/translate.c
index 5abe4cd610..1d2134ac06 100644
--- a/target/hppa/translate.c
+++ b/target/hppa/translate.c
@@ -882,14 +882,6 @@ static unsigned assemble_rb64(uint32_t insn)
return r1 * 32 + r0;
}
-static unsigned assemble_rc64(uint32_t insn)
-{
- unsigned r2 = extract32(insn, 8, 1);
- unsigned r1 = extract32(insn, 13, 3);
- unsigned r0 = extract32(insn, 9, 2);
- return r2 * 32 + r1 * 4 + r0;
-}
-
static inline unsigned assemble_sr3(uint32_t insn)
{
unsigned s2 = extract32(insn, 13, 1);
@@ -4033,67 +4025,52 @@ static void trans_fmpysub_d(DisasContext *ctx,
arg_mpyadd *a, uint32_t insn)
do_fmpyadd_d(ctx, a, true);
}
-static void trans_fmpyfadd_s(DisasContext *ctx, uint32_t insn,
- const DisasInsn *di)
+static void trans_fmpyfadd_f(DisasContext *ctx, arg_fmpyfadd_f *a,
+ uint32_t insn)
{
- unsigned rt = assemble_rt64(insn);
- unsigned neg = extract32(insn, 5, 1);
- unsigned rm1 = assemble_ra64(insn);
- unsigned rm2 = assemble_rb64(insn);
- unsigned ra3 = assemble_rc64(insn);
- TCGv_i32 a, b, c;
+ TCGv_i32 x, y, z;
nullify_over(ctx);
- a = load_frw0_i32(rm1);
- b = load_frw0_i32(rm2);
- c = load_frw0_i32(ra3);
+ x = load_frw0_i32(a->rm1);
+ y = load_frw0_i32(a->rm2);
+ z = load_frw0_i32(a->ra3);
- if (neg) {
- gen_helper_fmpynfadd_s(a, cpu_env, a, b, c);
+ if (a->neg) {
+ gen_helper_fmpynfadd_s(x, cpu_env, x, y, z);
} else {
- gen_helper_fmpyfadd_s(a, cpu_env, a, b, c);
+ gen_helper_fmpyfadd_s(x, cpu_env, x, y, z);
}
- tcg_temp_free_i32(b);
- tcg_temp_free_i32(c);
- save_frw_i32(rt, a);
- tcg_temp_free_i32(a);
+ tcg_temp_free_i32(y);
+ tcg_temp_free_i32(z);
+ save_frw_i32(a->t, x);
+ tcg_temp_free_i32(x);
nullify_end(ctx);
}
-static void trans_fmpyfadd_d(DisasContext *ctx, uint32_t insn,
- const DisasInsn *di)
+static void trans_fmpyfadd_d(DisasContext *ctx, arg_fmpyfadd_d *a,
+ uint32_t insn)
{
- unsigned rt = extract32(insn, 0, 5);
- unsigned neg = extract32(insn, 5, 1);
- unsigned rm1 = extract32(insn, 21, 5);
- unsigned rm2 = extract32(insn, 16, 5);
- unsigned ra3 = assemble_rc64(insn);
- TCGv_i64 a, b, c;
+ TCGv_i64 x, y, z;
nullify_over(ctx);
- a = load_frd0(rm1);
- b = load_frd0(rm2);
- c = load_frd0(ra3);
+ x = load_frd0(a->rm1);
+ y = load_frd0(a->rm2);
+ z = load_frd0(a->ra3);
- if (neg) {
- gen_helper_fmpynfadd_d(a, cpu_env, a, b, c);
+ if (a->neg) {
+ gen_helper_fmpynfadd_d(x, cpu_env, x, y, z);
} else {
- gen_helper_fmpyfadd_d(a, cpu_env, a, b, c);
+ gen_helper_fmpyfadd_d(x, cpu_env, x, y, z);
}
- tcg_temp_free_i64(b);
- tcg_temp_free_i64(c);
- save_frd(rt, a);
- tcg_temp_free_i64(a);
+ tcg_temp_free_i64(y);
+ tcg_temp_free_i64(z);
+ save_frd(a->t, x);
+ tcg_temp_free_i64(x);
nullify_end(ctx);
}
-static const DisasInsn table_fp_fused[] = {
- { 0xb8000000u, 0xfc000800u, trans_fmpyfadd_s },
- { 0xb8000800u, 0xfc0019c0u, trans_fmpyfadd_d }
-};
-
static void translate_table_int(DisasContext *ctx, uint32_t insn,
const DisasInsn table[], size_t n)
{
@@ -4129,10 +4106,6 @@ static void translate_one(DisasContext *ctx, uint32_t
insn)
case 0x0E:
translate_table(ctx, insn, table_float_0e);
return;
-
- case 0x2E:
- translate_table(ctx, insn, table_fp_fused);
- return;
}
gen_illegal(ctx);
}
diff --git a/target/hppa/insns.decode b/target/hppa/insns.decode
index ddbbaefd83..83612c562e 100644
--- a/target/hppa/insns.decode
+++ b/target/hppa/insns.decode
@@ -39,6 +39,10 @@
%rm64 1:1 16:5
%rt64 6:1 0:5
+%ra64 7:1 21:5
+%rb64 12:1 16:5
+%rc64 8:1 13:3 9:2
+%rc32 13:3 9:2
%im5_0 0:s1 1:4
%im5_16 16:s1 17:4
@@ -336,3 +340,11 @@ blr 111010 l:5 x:5 010 00000000000 n:1 0
bv 111010 b:5 x:5 110 00000000000 n:1 0
bve 111010 b:5 00000 110 10000000000 n:1 - l=0
bve 111010 b:5 00000 111 10000000000 n:1 - l=2
+
+####
+# FP Fused Multiple-Add
+####
+
+fmpyfadd_f 101110 ..... ..... ... . 0 ... . . neg:1 ..... \
+ rm1=%ra64 rm2=%rb64 ra3=%rc64 t=%rt64
+fmpyfadd_d 101110 rm1:5 rm2:5 ... 0 1 ..0 0 0 neg:1 t:5 ra3=%rc32
--
2.14.3
- [Qemu-devel] [PATCH 07/19] target/hppa: Convert arithmetic/logical insns, (continued)
- [Qemu-devel] [PATCH 07/19] target/hppa: Convert arithmetic/logical insns, Richard Henderson, 2018/02/17
- [Qemu-devel] [PATCH 08/19] target/hppa: Convert indexed memory insns, Richard Henderson, 2018/02/17
- [Qemu-devel] [PATCH 09/19] target/hppa: Convert fp multiply-add, Richard Henderson, 2018/02/17
- [Qemu-devel] [PATCH 01/19] target/hppa: Use DisasContextBase.is_jmp, Richard Henderson, 2018/02/17
- [Qemu-devel] [PATCH 10/19] target/hppa: Convert conditional branches, Richard Henderson, 2018/02/17
- [Qemu-devel] [PATCH 12/19] target/hppa: Convert direct and indirect branches, Richard Henderson, 2018/02/17
- [Qemu-devel] [PATCH 11/19] target/hppa: Convert shift, extract, deposit insns, Richard Henderson, 2018/02/17
- [Qemu-devel] [PATCH 13/19] target/hppa: Convert arithmetic immediate insns, Richard Henderson, 2018/02/17
- [Qemu-devel] [PATCH 14/19] target/hppa: Convert offset memory insns, Richard Henderson, 2018/02/17
- [Qemu-devel] [PATCH 16/19] target/hppa: Convert halt/reset insns, Richard Henderson, 2018/02/17
- [Qemu-devel] [PATCH 17/19] target/hppa: Convert fp fused multiply-add insns,
Richard Henderson <=
- [Qemu-devel] [PATCH 15/19] target/hppa: Convert fp indexed memory insns, Richard Henderson, 2018/02/17
- [Qemu-devel] [PATCH 19/19] target/hppa: Merge translate_one into hppa_tr_translate_insn, Richard Henderson, 2018/02/17
- [Qemu-devel] [PATCH 18/19] target/hppa: Convert fp operate insns, Richard Henderson, 2018/02/17
- Re: [Qemu-devel] [PATCH 00/19] target/hppa: Convert to decodetree.py, no-reply, 2018/02/23
- Re: [Qemu-devel] [PATCH 00/19] target/hppa: Convert to decodetree.py, no-reply, 2018/02/24
- Re: [Qemu-devel] [PATCH 00/19] target/hppa: Convert to decodetree.py, no-reply, 2018/02/25