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[PATCH 42/77] target/microblaze: Convert dec_div to decodetree
From: |
Richard Henderson |
Subject: |
[PATCH 42/77] target/microblaze: Convert dec_div to decodetree |
Date: |
Tue, 25 Aug 2020 13:59:15 -0700 |
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/microblaze/insns.decode | 3 +++
target/microblaze/translate.c | 35 +++++++++++++---------------------
2 files changed, 16 insertions(+), 22 deletions(-)
diff --git a/target/microblaze/insns.decode b/target/microblaze/insns.decode
index 65a8a53b54..18619e923e 100644
--- a/target/microblaze/insns.decode
+++ b/target/microblaze/insns.decode
@@ -47,6 +47,9 @@ andni 101011 ..... ..... ................ @typeb
cmp 000101 ..... ..... ..... 000 0000 0001 @typea
cmpu 000101 ..... ..... ..... 000 0000 0011 @typea
+idiv 010010 ..... ..... ..... 000 0000 0000 @typea
+idivu 010010 ..... ..... ..... 000 0000 0010 @typea
+
mul 010000 ..... ..... ..... 000 0000 0000 @typea
mulh 010000 ..... ..... ..... 000 0000 0001 @typea
mulhu 010000 ..... ..... ..... 000 0000 0011 @typea
diff --git a/target/microblaze/translate.c b/target/microblaze/translate.c
index dc6ea523b5..1d54ea02f0 100644
--- a/target/microblaze/translate.c
+++ b/target/microblaze/translate.c
@@ -368,6 +368,19 @@ static void gen_cmpu(TCGv_i32 out, TCGv_i32 ina, TCGv_i32
inb)
DO_TYPEA(cmp, false, gen_cmp)
DO_TYPEA(cmpu, false, gen_cmpu)
+static void gen_idiv(TCGv_i32 out, TCGv_i32 ina, TCGv_i32 inb)
+{
+ gen_helper_divs(out, cpu_env, inb, ina);
+}
+
+static void gen_idivu(TCGv_i32 out, TCGv_i32 ina, TCGv_i32 inb)
+{
+ gen_helper_divu(out, cpu_env, inb, ina);
+}
+
+DO_TYPEA_CFG(idiv, use_div, true, gen_idiv)
+DO_TYPEA_CFG(idivu, use_div, true, gen_idivu)
+
static void gen_mulh(TCGv_i32 out, TCGv_i32 ina, TCGv_i32 inb)
{
TCGv_i32 tmp = tcg_temp_new_i32();
@@ -669,27 +682,6 @@ static void dec_msr(DisasContext *dc)
}
}
-/* Div unit. */
-static void dec_div(DisasContext *dc)
-{
- unsigned int u;
-
- u = dc->imm & 2;
-
- if (trap_illegal(dc, !dc->cpu->cfg.use_div)) {
- return;
- }
-
- if (u)
- gen_helper_divu(cpu_R[dc->rd], cpu_env, *(dec_alu_op_b(dc)),
- cpu_R[dc->ra]);
- else
- gen_helper_divs(cpu_R[dc->rd], cpu_env, *(dec_alu_op_b(dc)),
- cpu_R[dc->ra]);
- if (!dc->rd)
- tcg_gen_movi_i32(cpu_R[dc->rd], 0);
-}
-
static void dec_barrel(DisasContext *dc)
{
TCGv_i32 t0;
@@ -1551,7 +1543,6 @@ static struct decoder_info {
{DEC_BCC, dec_bcc},
{DEC_RTS, dec_rts},
{DEC_FPU, dec_fpu},
- {DEC_DIV, dec_div},
{DEC_MSR, dec_msr},
{DEC_STREAM, dec_stream},
{{0, 0}, dec_null}
--
2.25.1
- [PATCH 25/77] target/microblaze: Split out MSR[C] to its own variable, (continued)
- [PATCH 25/77] target/microblaze: Split out MSR[C] to its own variable, Richard Henderson, 2020/08/25
- [PATCH 33/77] target/microblaze: Remove LOG_DIS, Richard Henderson, 2020/08/25
- [PATCH 36/77] target/microblaze: Convert dec_add to decodetree, Richard Henderson, 2020/08/25
- [PATCH 37/77] target/microblaze: Convert dec_sub to decodetree, Richard Henderson, 2020/08/25
- [PATCH 28/77] target/microblaze: Convert to DisasContextBase, Richard Henderson, 2020/08/25
- [PATCH 31/77] target/microblaze: Remove DISAS_GNU, Richard Henderson, 2020/08/25
- [PATCH 34/77] target/microblaze: Ensure imm constant is always available, Richard Henderson, 2020/08/25
- [PATCH 35/77] target/microblaze: Add decodetree infrastructure, Richard Henderson, 2020/08/25
- [PATCH 38/77] target/microblaze: Implement cmp and cmpu inline, Richard Henderson, 2020/08/25
- [PATCH 39/77] target/microblaze: Convert dec_pattern to decodetree, Richard Henderson, 2020/08/25
- [PATCH 42/77] target/microblaze: Convert dec_div to decodetree,
Richard Henderson <=
- [PATCH 40/77] target/microblaze: Convert dec_and, dec_or, dec_xor to decodetree, Richard Henderson, 2020/08/25
- [PATCH 43/77] target/microblaze: Unwind properly when raising divide-by-zero, Richard Henderson, 2020/08/25
- [PATCH 41/77] target/microblaze: Convert dec_mul to decodetree, Richard Henderson, 2020/08/25
- [PATCH 44/77] target/microblaze: Convert dec_bit to decodetree, Richard Henderson, 2020/08/25
- [PATCH 45/77] target/microblaze: Convert dec_barrel to decodetree, Richard Henderson, 2020/08/25
- [PATCH 47/77] target/microblaze: Convert dec_fpu to decodetree, Richard Henderson, 2020/08/25
- [PATCH 46/77] target/microblaze: Convert dec_imm to decodetree, Richard Henderson, 2020/08/25
- [PATCH 48/77] target/microblaze: Fix cpu unwind for fpu exceptions, Richard Henderson, 2020/08/25
- [PATCH 49/77] target/microblaze: Mark fpu helpers TCG_CALL_NO_WG, Richard Henderson, 2020/08/25
- [PATCH 50/77] target/microblaze: Replace MSR_EE_FLAG with MSR_EE, Richard Henderson, 2020/08/25