diff options
| author | Philipp Tomsich <philipp.tomsich@vrull.eu> | 2022-02-02 01:52:48 +0100 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2022-02-16 12:24:18 +1000 |
| commit | 0d429bd243dd391e844213d97bb14a0f119b33b5 (patch) | |
| tree | ad6a887cc9271fc2a2e6adc897c8ea18b22432ff /target/riscv/XVentanaCondOps.decode | |
| parent | 5e199b6bdc544658ecc9d614779b2cf3fe215ead (diff) | |
target/riscv: Add XVentanaCondOps custom extension
This adds the decoder and translation for the XVentanaCondOps custom
extension (vendor-defined by Ventana Micro Systems), which is
documented at https://github.com/ventanamicro/ventana-custom-extensions/releases/download/v1.0.0/ventana-custom-extensions-v1.0.0.pdf
This commit then also adds a guard-function (has_XVentanaCondOps_p)
and the decoder function to the table of decoders, enabling the
support for the XVentanaCondOps extension.
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>
Message-Id: <20220202005249.3566542-7-philipp.tomsich@vrull.eu>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'target/riscv/XVentanaCondOps.decode')
| -rw-r--r-- | target/riscv/XVentanaCondOps.decode | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/target/riscv/XVentanaCondOps.decode b/target/riscv/XVentanaCondOps.decode new file mode 100644 index 0000000000..5aef7c3d72 --- /dev/null +++ b/target/riscv/XVentanaCondOps.decode @@ -0,0 +1,25 @@ +# +# RISC-V translation routines for the XVentanaCondOps extension +# +# Copyright (c) 2022 Dr. Philipp Tomsich, philipp.tomsich@vrull.eu +# +# SPDX-License-Identifier: LGPL-2.1-or-later +# +# Reference: VTx-family custom instructions +# Custom ISA extensions for Ventana Micro Systems RISC-V cores +# (https://github.com/ventanamicro/ventana-custom-extensions/releases/download/v1.0.0/ventana-custom-extensions-v1.0.0.pdf) + +# Fields +%rs2 20:5 +%rs1 15:5 +%rd 7:5 + +# Argument sets +&r rd rs1 rs2 !extern + +# Formats +@r ....... ..... ..... ... ..... ....... &r %rs2 %rs1 %rd + +# *** RV64 Custom-3 Extension *** +vt_maskc 0000000 ..... ..... 110 ..... 1111011 @r +vt_maskcn 0000000 ..... ..... 111 ..... 1111011 @r |