Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
---
 riscv64.risu | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/riscv64.risu b/riscv64.risu
index 98141ab..f006dc8 100644
--- a/riscv64.risu
+++ b/riscv64.risu
@@ -139,3 +139,46 @@ SRLW RISCV 0000000 rs2:5 rs1:5 101 rd:5 0011011 \
 
 SRAW RISCV 0100000 rs2:5 rs1:5 101 rd:5 0011011 \
 !constraints { $rd != 2 && $rd != 3 && $rd != 4 && $rs1 != 2 }
+
+@RV64M
+
+MUL RISCV 0000001 rs2:5 rs1:5 000 rd:5 0110011 \
+!constraints { $rd != 2 && $rd != 3 && $rd != 4 && $rs1 != 2 && $rs2 != 2 }
+
+MULH RISCV 0000001 rs2:5 rs1:5 001 rd:5 0110011 \
+!constraints { $rd != 2 && $rd != 3 && $rd != 4 && $rs1 != 2 && $rs2 != 2 }
+
+MULHSU RISCV 0000001 rs2:5 rs1:5 010 rd:5 0110011 \
+!constraints { $rd != 2 && $rd != 3 && $rd != 4 && $rs1 != 2 && $rs2 != 2 }
+
+MULHU RISCV 0000001 rs2:5 rs1:5 011 rd:5 0110011 \
+!constraints { $rd != 2 && $rd != 3 && $rd != 4 && $rs1 != 2 && $rs2 != 2 }
+
+DIV RISCV 0000001 rs2:5 rs1:5 100 rd:5 0110011 \
+!constraints { $rd != 2 && $rd != 3 && $rd != 4 && $rs1 != 2 && $rs2 != 2 }
+
+DIVU RISCV 0000001 rs2:5 rs1:5 101 rd:5 0110011 \
+!constraints { $rd != 2 && $rd != 3 && $rd != 4 && $rs1 != 2 && $rs2 != 2 }
+
+REM RISCV 0000001 rs2:5 rs1:5 110 rd:5 0110011 \
+!constraints { $rd != 2 && $rd != 3 && $rd != 4 && $rs1 != 2 && $rs2 != 2 }
+
+REMU RISCV 0000001 rs2:5 rs1:5 111 rd:5 0110011 \
+!constraints { $rd != 2 && $rd != 3 && $rd != 4 && $rs1 != 2 && $rs2 != 2 }
+
+MULW RISCV 0000001 rs2:5 rs1:5 000 rd:5 0111011 \
+!constraints { $rd != 2 && $rd != 3 && $rd != 4 && $rs1 != 2 && $rs2 != 2 }
+
+DIVW RISCV 0000001 rs2:5 rs1:5 100 rd:5 0111011 \
+!constraints { $rd != 2 && $rd != 3 && $rd != 4 && $rs1 != 2 && $rs2 != 2 }
+
+DIVUW RISCV 0000001 rs2:5 rs1:5 101 rd:5 0111011 \
+!constraints { $rd != 2 && $rd != 3 && $rd != 4 && $rs1 != 2 && $rs2 != 2 }
+
+REMW RISCV 0000001 rs2:5 rs1:5 110 rd:5 0111011 \
+!constraints { $rd != 2 && $rd != 3 && $rd != 4 && $rs1 != 2 && $rs2 != 2 }
+
+REMUW RISCV 0000001 rs2:5 rs1:5 111 rd:5 0111011 \
+!constraints { $rd != 2 && $rd != 3 && $rd != 4 && $rs1 != 2 && $rs2 != 2 }
+
+
-- 
2.23.0

On 4/30/20 12:21 AM, LIU Zhiwei wrote:
> Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
> ---
>  riscv64.risu | 43 +++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 43 insertions(+)
> 
> diff --git a/riscv64.risu b/riscv64.risu
> index 98141ab..f006dc8 100644
> --- a/riscv64.risu
> +++ b/riscv64.risu
> @@ -139,3 +139,46 @@ SRLW RISCV 0000000 rs2:5 rs1:5 101 rd:5 0011011 \
>  
>  SRAW RISCV 0100000 rs2:5 rs1:5 101 rd:5 0011011 \
>  !constraints { $rd != 2 && $rd != 3 && $rd != 4 && $rs1 != 2 }
> +
> +@RV64M
> +
> +MUL RISCV 0000001 rs2:5 rs1:5 000 rd:5 0110011 \
> +!constraints { $rd != 2 && $rd != 3 && $rd != 4 && $rs1 != 2 && $rs2 != 2 }
> +

Modulo the use of a helper function,
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>


r~