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target/riscv: Reassign instructions to the Zba-extension 

The following instructions are part of Zba:
 - add.uw (RV64 only)
 - sh[123]add (RV32 and RV64)
 - sh[123]add.uw (RV64-only)
 - slli.uw (RV64-only)

Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Acked-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 20210911140016.834071-6-philipp.tomsich@vrull.eu
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
master
Philipp Tomsich 2021-09-11 16:00:05 +02:00 committed by Alistair Francis
parent 878dd0e9ac
commit bb4dc158e0
2 changed files with 23 additions and 13 deletions
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20
target/riscv/insn32.decode
View File

@ -660,6 +660,18 @@ vamomaxd_v 10100 . . ..... ..... 111 ..... 0101111 @r_wdvm
vamominud_v 11000 . . ..... ..... 111 ..... 0101111 @r_wdvm
vamomaxud_v 11100 . . ..... ..... 111 ..... 0101111 @r_wdvm
# *** RV32 Zba Standard Extension ***
sh1add 0010000 .......... 010 ..... 0110011 @r
sh2add 0010000 .......... 100 ..... 0110011 @r
sh3add 0010000 .......... 110 ..... 0110011 @r
# *** RV64 Zba Standard Extension (in addition to RV32 Zba) ***
add_uw 0000100 .......... 000 ..... 0111011 @r
sh1add_uw 0010000 .......... 010 ..... 0111011 @r
sh2add_uw 0010000 .......... 100 ..... 0111011 @r
sh3add_uw 0010000 .......... 110 ..... 0111011 @r
slli_uw 00001 ............ 001 ..... 0011011 @sh
# *** RV32B Standard Extension ***
clz 011000 000000 ..... 001 ..... 0010011 @r2
ctz 011000 000001 ..... 001 ..... 0010011 @r2
@ -687,9 +699,6 @@ ror 0110000 .......... 101 ..... 0110011 @r
rol 0110000 .......... 001 ..... 0110011 @r
grev 0110100 .......... 101 ..... 0110011 @r
gorc 0010100 .......... 101 ..... 0110011 @r
sh1add 0010000 .......... 010 ..... 0110011 @r
sh2add 0010000 .......... 100 ..... 0110011 @r
sh3add 0010000 .......... 110 ..... 0110011 @r
bseti 00101. ........... 001 ..... 0010011 @sh
bclri 01001. ........... 001 ..... 0010011 @sh
@ -718,10 +727,6 @@ rorw 0110000 .......... 101 ..... 0111011 @r
rolw 0110000 .......... 001 ..... 0111011 @r
grevw 0110100 .......... 101 ..... 0111011 @r
gorcw 0010100 .......... 101 ..... 0111011 @r
sh1add_uw 0010000 .......... 010 ..... 0111011 @r
sh2add_uw 0010000 .......... 100 ..... 0111011 @r
sh3add_uw 0010000 .......... 110 ..... 0111011 @r
add_uw 0000100 .......... 000 ..... 0111011 @r
bsetiw 0010100 .......... 001 ..... 0011011 @sh5
bclriw 0100100 .......... 001 ..... 0011011 @sh5
@ -732,4 +737,3 @@ roriw 0110000 .......... 101 ..... 0011011 @sh5
greviw 0110100 .......... 101 ..... 0011011 @sh5
gorciw 0010100 .......... 101 ..... 0011011 @sh5
slli_uw 00001. ........... 001 ..... 0011011 @sh

16
target/riscv/insn_trans/trans_rvb.c.inc
View File

@ -1,8 +1,9 @@
/*
* RISC-V translation routines for the RVB Standard Extension.
* RISC-V translation routines for the RVB draft and Zba Standard Extension.
*
* Copyright (c) 2020 Kito Cheng, kito.cheng@sifive.com
* Copyright (c) 2020 Frank Chang, frank.chang@sifive.com
* Copyright (c) 2021 Philipp Tomsich, philipp.tomsich@vrull.eu
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@ -17,6 +18,11 @@
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define REQUIRE_ZBA(ctx) do { \
if (!RISCV_CPU(ctx->cs)->cfg.ext_zba) { \
return false; \
} \
} while (0)
static void gen_clz(TCGv ret, TCGv arg1)
{
@ -339,7 +345,7 @@ GEN_SHADD(3)
#define GEN_TRANS_SHADD(SHAMT) \
static bool trans_sh##SHAMT##add(DisasContext *ctx, arg_sh##SHAMT##add *a) \
{ \
REQUIRE_EXT(ctx, RVB); \
REQUIRE_ZBA(ctx); \
return gen_arith(ctx, a, EXT_NONE, gen_sh##SHAMT##add); \
}
@ -616,7 +622,7 @@ static bool trans_sh##SHAMT##add_uw(DisasContext *ctx, \
arg_sh##SHAMT##add_uw *a) \
{ \
REQUIRE_64BIT(ctx); \
REQUIRE_EXT(ctx, RVB); \
REQUIRE_ZBA(ctx); \
return gen_arith(ctx, a, EXT_NONE, gen_sh##SHAMT##add_uw); \
}
@ -635,7 +641,7 @@ static void gen_add_uw(TCGv ret, TCGv arg1, TCGv arg2)
static bool trans_add_uw(DisasContext *ctx, arg_add_uw *a)
{
REQUIRE_64BIT(ctx);
REQUIRE_EXT(ctx, RVB);
REQUIRE_ZBA(ctx);
return gen_arith(ctx, a, EXT_NONE, gen_add_uw);
}
@ -647,6 +653,6 @@ static void gen_slli_uw(TCGv dest, TCGv src, target_long shamt)
static bool trans_slli_uw(DisasContext *ctx, arg_slli_uw *a)
{
REQUIRE_64BIT(ctx);
REQUIRE_EXT(ctx, RVB);
REQUIRE_ZBA(ctx);
return gen_shift_imm_fn(ctx, a, EXT_NONE, gen_slli_uw);
}