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[PATCH 73/77] target/microblaze: Convert dec_stream to decodetree
From: |
Richard Henderson |
Subject: |
[PATCH 73/77] target/microblaze: Convert dec_stream to decodetree |
Date: |
Tue, 25 Aug 2020 13:59:46 -0700 |
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/microblaze/insns.decode | 6 ++++
target/microblaze/translate.c | 64 ++++++++++++++++++++++++++--------
2 files changed, 55 insertions(+), 15 deletions(-)
diff --git a/target/microblaze/insns.decode b/target/microblaze/insns.decode
index 48c60082e0..79d32c826c 100644
--- a/target/microblaze/insns.decode
+++ b/target/microblaze/insns.decode
@@ -156,6 +156,9 @@ flt 010110 ..... ..... ----- 0101 000 0000
@typea0
fint 010110 ..... ..... ----- 0110 000 0000 @typea0
fsqrt 010110 ..... ..... 00000 0111 000 0000 @typea0
+get 011011 rd:5 00000 0 ctrl:5 000000 imm:4
+getd 010011 rd:5 00000 rb:5 0 ctrl:5 00000
+
idiv 010010 ..... ..... ..... 000 0000 0000 @typea
idivu 010010 ..... ..... ..... 000 0000 0010 @typea
@@ -198,6 +201,9 @@ pcmpbf 100000 ..... ..... ..... 100 0000 0000
@typea
pcmpeq 100010 ..... ..... ..... 100 0000 0000 @typea
pcmpne 100011 ..... ..... ..... 100 0000 0000 @typea
+put 011011 00000 ra:5 1 ctrl:5 000000 imm:4
+putd 010011 00000 ra:5 rb:5 1 ctrl:5 00000
+
rsub 000001 ..... ..... ..... 000 0000 0000 @typea
rsubc 000011 ..... ..... ..... 000 0000 0000 @typea
rsubk 000101 ..... ..... ..... 000 0000 0000 @typea
diff --git a/target/microblaze/translate.c b/target/microblaze/translate.c
index e9e4a0e1db..0a05b49f8e 100644
--- a/target/microblaze/translate.c
+++ b/target/microblaze/translate.c
@@ -1587,33 +1587,68 @@ static void dec_null(DisasContext *dc)
}
/* Insns connected to FSL or AXI stream attached devices. */
-static void dec_stream(DisasContext *dc)
+static bool do_get(DisasContext *dc, int rd, int rb, int imm, int ctrl)
{
TCGv_i32 t_id, t_ctrl;
- int ctrl;
if (trap_userspace(dc, true)) {
- return;
+ return true;
}
t_id = tcg_temp_new_i32();
- if (dc->type_b) {
- tcg_gen_movi_i32(t_id, dc->imm & 0xf);
- ctrl = dc->imm >> 10;
+ if (rb) {
+ tcg_gen_andi_i32(t_id, cpu_R[rb], 0xf);
} else {
- tcg_gen_andi_i32(t_id, cpu_R[dc->rb], 0xf);
- ctrl = dc->imm >> 5;
+ tcg_gen_movi_i32(t_id, imm);
}
t_ctrl = tcg_const_i32(ctrl);
-
- if (dc->rd == 0) {
- gen_helper_put(t_id, t_ctrl, cpu_R[dc->ra]);
- } else {
- gen_helper_get(cpu_R[dc->rd], t_id, t_ctrl);
- }
+ gen_helper_get(reg_for_write(dc, rd), t_id, t_ctrl);
tcg_temp_free_i32(t_id);
tcg_temp_free_i32(t_ctrl);
+ return true;
+}
+
+static bool trans_get(DisasContext *dc, arg_get *arg)
+{
+ return do_get(dc, arg->rd, 0, arg->imm, arg->ctrl);
+}
+
+static bool trans_getd(DisasContext *dc, arg_getd *arg)
+{
+ return do_get(dc, arg->rd, arg->rb, 0, arg->ctrl);
+}
+
+static bool do_put(DisasContext *dc, int ra, int rb, int imm, int ctrl)
+{
+ TCGv_i32 t_id, t_ctrl;
+
+ if (trap_userspace(dc, true)) {
+ return true;
+ }
+
+ t_id = tcg_temp_new_i32();
+ if (rb) {
+ tcg_gen_andi_i32(t_id, cpu_R[rb], 0xf);
+ } else {
+ tcg_gen_movi_i32(t_id, imm);
+ }
+
+ t_ctrl = tcg_const_i32(ctrl);
+ gen_helper_get(t_id, t_ctrl, reg_for_read(dc, ra));
+ tcg_temp_free_i32(t_id);
+ tcg_temp_free_i32(t_ctrl);
+ return true;
+}
+
+static bool trans_put(DisasContext *dc, arg_put *arg)
+{
+ return do_put(dc, arg->ra, 0, arg->imm, arg->ctrl);
+}
+
+static bool trans_putd(DisasContext *dc, arg_putd *arg)
+{
+ return do_put(dc, arg->ra, arg->rb, 0, arg->ctrl);
}
static struct decoder_info {
@@ -1623,7 +1658,6 @@ static struct decoder_info {
};
void (*dec)(DisasContext *dc);
} decinfo[] = {
- {DEC_STREAM, dec_stream},
{{0, 0}, dec_null}
};
--
2.25.1
- [PATCH 64/77] target/microblaze: Convert mbar to decodetree, (continued)
[PATCH 65/77] target/microblaze: Reorganize branching, Richard Henderson, 2020/08/25
[PATCH 66/77] target/microblaze: Use tcg_gen_lookup_and_goto_ptr, Richard Henderson, 2020/08/25
[PATCH 67/77] target/microblaze: Convert dec_br to decodetree, Richard Henderson, 2020/08/25
[PATCH 69/77] target/microblaze: Convert dec_rts to decodetree, Richard Henderson, 2020/08/25
[PATCH 68/77] target/microblaze: Convert dec_bcc to decodetree, Richard Henderson, 2020/08/25
[PATCH 73/77] target/microblaze: Convert dec_stream to decodetree,
Richard Henderson <=
[PATCH 72/77] target/microblaze: Convert dec_msr to decodetree, Richard Henderson, 2020/08/25
[PATCH 76/77] target/microblaze: Add flags markup to some helpers, Richard Henderson, 2020/08/25
[PATCH 70/77] target/microblaze: Tidy do_rti, do_rtb, do_rte, Richard Henderson, 2020/08/25
[PATCH 75/77] target/microblaze: Remove cpu_R[0], Richard Henderson, 2020/08/25
[PATCH 71/77] target/microblaze: Convert msrclr, msrset to decodetree, Richard Henderson, 2020/08/25
[PATCH 74/77] target/microblaze: Remove last of old decoder, Richard Henderson, 2020/08/25
[PATCH 77/77] target/microblaze: Reduce linux-user address space to 32-bit, Richard Henderson, 2020/08/25
Re: [PATCH 00/77] target/microblaze improvements, Edgar E. Iglesias, 2020/08/26