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authorWeiwei Li <liweiwei@iscas.ac.cn>2023-03-07 16:13:59 +0800
committerAlistair Francis <alistair.francis@wdc.com>2023-05-05 10:49:50 +1000
commit193eb522e4083d8e84c3fae443fd98bc300b95d0 (patch)
tree4ed4a127f94712c691fdf276b75674896839ed96 /target/riscv/insn16.decode
parente0a3054f18e20602768d328b0cb7d5910253a327 (diff)
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target/riscv: add support for Zcmp extension
Add encode, trans* functions for Zcmp instructions. Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn> Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20230307081403.61950-7-liweiwei@iscas.ac.cn> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'target/riscv/insn16.decode')
-rw-r--r--target/riscv/insn16.decode18
1 files changed, 18 insertions, 0 deletions
diff --git a/target/riscv/insn16.decode b/target/riscv/insn16.decode
index ab780fa..55c9574 100644
--- a/target/riscv/insn16.decode
+++ b/target/riscv/insn16.decode
@@ -21,6 +21,8 @@
%rs1_3 7:3 !function=ex_rvc_register
%rs2_3 2:3 !function=ex_rvc_register
%rs2_5 2:5
+%r1s 7:3 !function=ex_sreg_register
+%r2s 2:3 !function=ex_sreg_register
# Immediates:
%imm_ci 12:s1 2:5
@@ -45,6 +47,8 @@
%uimm_cl_b 5:1 6:1
%uimm_cl_h 5:1 !function=ex_shift_1
+%spimm 2:2 !function=ex_shift_4
+%urlist 4:4
# Argument sets imported from insn32.decode:
&empty !extern
@@ -56,7 +60,9 @@
&u imm rd !extern
&shift shamt rs1 rd !extern
&r2 rd rs1 !extern
+&r2_s rs1 rs2 !extern
+&cmpp urlist spimm
# Formats 16:
@cr .... ..... ..... .. &r rs2=%rs2_5 rs1=%rd %rd
@@ -97,6 +103,8 @@
@cl_h ... . .. ... .. ... .. &i imm=%uimm_cl_h rs1=%rs1_3 rd=%rs2_3
@cs_b ... . .. ... .. ... .. &s imm=%uimm_cl_b rs1=%rs1_3 rs2=%rs2_3
@cs_h ... . .. ... .. ... .. &s imm=%uimm_cl_h rs1=%rs1_3 rs2=%rs2_3
+@cm_pp ... ... ........ .. &cmpp %urlist %spimm
+@cm_mv ... ... ... .. ... .. &r2_s rs2=%r2s rs1=%r1s
# *** RV32/64C Standard Extension (Quadrant 0) ***
{
@@ -176,6 +184,16 @@ slli 000 . ..... ..... 10 @c_shift2
{
sq 101 ... ... .. ... 10 @c_sqsp
c_fsd 101 ...... ..... 10 @c_sdsp
+
+ # *** RV64 and RV32 Zcmp Extension ***
+ [
+ cm_push 101 11000 .... .. 10 @cm_pp
+ cm_pop 101 11010 .... .. 10 @cm_pp
+ cm_popret 101 11110 .... .. 10 @cm_pp
+ cm_popretz 101 11100 .... .. 10 @cm_pp
+ cm_mva01s 101 011 ... 11 ... 10 @cm_mv
+ cm_mvsa01 101 011 ... 01 ... 10 @cm_mv
+ ]
}
sw 110 . ..... ..... 10 @c_swsp