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2024-01-10disas/riscv: Add amocas.[w,d,q] instructionsRob Bradford1-0/+9
Signed-off-by: Rob Bradford <rbradford@rivosinc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Message-ID: <20231207153842.32401-3-rbradford@rivosinc.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-11-07disas/riscv: Replace TABs with spaceMax Chou1-3/+3
Replaces TABs with spaces, making sure to have a consistent coding style of 4 space indentations. Signed-off-by: Max Chou <max.chou@sifive.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-ID: <20231026151828.754279-15-max.chou@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-11-07disas/riscv: Add support for vector crypto extensionsMax Chou1-0/+137
This patch adds following v1.0.0 ratified vector crypto extensions support to the RISC-V disassembler. - Zvbb - Zvbc - Zvkb - Zvkg - Zvkned - Zvknha - Zvknhb - Zvksed - Zvksh Signed-off-by: Max Chou <max.chou@sifive.com> Message-ID: <20231026151828.754279-14-max.chou@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-11-07disas/riscv: Add rv_codec_vror_vi for vror.viMax Chou1-1/+13
Add rv_codec_vror_vi for the vector crypto instruction - vror.vi. The rotate amount of vror.vi is defined by combining seperated bits. Signed-off-by: Max Chou <max.chou@sifive.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-ID: <20231026151828.754279-13-max.chou@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-10-12disas/riscv: Fix the typo of inverted order of pmpaddr13 and pmpaddr14Alvin Chang1-2/+2
Fix the inverted order of pmpaddr13 and pmpaddr14 in csr_name(). Signed-off-by: Alvin Chang <alvinga@andestech.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-ID: <20230907084500.328-1-alvinga@andestech.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-07-19riscv/disas: Fix disas output of upper immediatesChristoph Müllner1-3/+16
The GNU assembler produces the following output for instructions with upper immediates: 00002597 auipc a1,0x2 000024b7 lui s1,0x2 6409 lui s0,0x2 # c.lui The immediate operands of upper immediates are not shifted. However, the QEMU disassembler prints them shifted: 00002597 auipc a1,8192 000024b7 lui s1,8192 6409 lui s0,8192 # c.lui The current implementation extracts the immediate bits and shifts the by 12, so the internal representation of the immediate is the actual immediate. However, the immediates are later printed using rv_fmt_rd_imm or rv_fmt_rd_offset, which don't undo the shift. Let's fix this by using specific output formats for instructions with upper immediates, that take care of the shift. Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20230711075051.1531007-1-christoph.muellner@vrull.eu> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-07-10riscv: Add support for the Zfa extensionChristoph Müllner1-0/+139
This patch introduces the RISC-V Zfa extension, which introduces additional floating-point instructions: * fli (load-immediate) with pre-defined immediates * fminm/fmaxm (like fmin/fmax but with different NaN behaviour) * fround/froundmx (round to integer) * fcvtmod.w.d (Modular Convert-to-Integer) * fmv* to access high bits of float register bigger than XLEN * Quiet comparison instructions (fleq/fltq) Zfa defines its instructions in combination with the following extensions: * single-precision floating-point (F) * double-precision floating-point (D) * quad-precision floating-point (Q) * half-precision floating-point (Zfh) Since QEMU does not support the RISC-V quad-precision floating-point ISA extension (Q), this patch does not include the instructions that depend on this extension. All other instructions are included in this patch. The Zfa specification can be found here: https://github.com/riscv/riscv-isa-manual/blob/master/src/zfa.tex The Zfa specifciation is frozen and is in public review since May 3, 2023: https://groups.google.com/a/groups.riscv.org/g/isa-dev/c/SED4ntBkabg The patch also includes a TCG test for the fcvtmod.w.d instruction. The test cases test for correct results and flag behaviour. Note, that the Zfa specification requires fcvtmod's flag behaviour to be identical to a fcvt with the same operands (which is also tested). Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu> Message-Id: <20230710071243.282464-1-christoph.muellner@vrull.eu> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-07-10target/riscv: Add disas support for BF16 extensionsWeiwei Li1-0/+44
Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn> Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20230703071759.86775-2-liweiwei@iscas.ac.cn> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-07-10disas/riscv: Add support for XThead* instructionsChristoph Müllner1-0/+69
Support for emulating XThead* instruction has been added recently. This patch adds support for these instructions to the RISC-V disassembler. Co-developed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu> Message-Id: <20230612111034.3955227-9-christoph.muellner@vrull.eu> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-07-10disas/riscv: Add support for XVentanaCondOpsChristoph Müllner1-0/+4
This patch adds XVentanaCondOps support to the RISC-V disassembler. Co-developed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Message-Id: <20230612111034.3955227-8-christoph.muellner@vrull.eu> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-07-10disas/riscv: Provide infrastructure for vendor extensionsChristoph Müllner1-2/+26
A previous patch provides a pointer to the RISCVCPUConfig data. Let's use this to add the necessary code for vendor extensions. This patch does not change the current behaviour, but clearly defines how vendor extension support can be added to the disassembler. Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu> Message-Id: <20230612111034.3955227-7-christoph.muellner@vrull.eu> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-07-10disas/riscv: Encapsulate opcode_data into decodeChristoph Müllner1-1/+8
This patch adds a reference to a struct rv_opcode_data object into struct rv_decode. This further allows to remove all references to the global variable opcode_data (which is renamed to rvi_opcode_data). This patch does not introduce any functional change, but prepares the code for more struct rv_opcode_data objects in the future. This patch is based on previous work from Liu Zhiwei: https://lists.nongnu.org/archive/html/qemu-devel/2022-08/msg03662.html Co-developed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu> Message-Id: <20230612111034.3955227-6-christoph.muellner@vrull.eu> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-07-10disas/riscv: Make rv_op_illegal a shared enum valueChristoph Müllner1-1/+1
The enum value 'rv_op_illegal' does not represent an instruction, but is a catch-all value in case we have no match in the decoder. Let's make the value a shared one, so that other compile units can reuse it. Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu> Message-Id: <20230612111034.3955227-5-christoph.muellner@vrull.eu> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-07-10disas/riscv: Move types/constants to new header fileChristoph Müllner1-269/+1
In order to enable vendor disassembler support, we need to move types and constants into a header file so that other compilation units can use them as well. This patch does not introduce any functional changes. Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu> Message-Id: <20230612111034.3955227-4-christoph.muellner@vrull.eu> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13disas/riscv.c: Remove redundant parenthesesWeiwei Li1-109/+110
Remove redundant parenthese and fix multi-line comments. Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn> Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20230523093539.203909-9-liweiwei@iscas.ac.cn> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13disas/riscv.c: Fix lines with over 80 charactersWeiwei Li1-61/+140
Fix lines with over 80 characters. Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn> Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20230523093539.203909-8-liweiwei@iscas.ac.cn> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13disas/riscv.c: Remove unused decomp_rv32/64 value for vector instructionsWeiwei Li1-370/+370
Currently decomp_rv32 and decomp_rv64 value in opcode_data for vector instructions are the same op index as their own. And they have no functional decomp_data. So they have no functional difference from just leaving them as zero. Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn> Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20230523093539.203909-7-liweiwei@iscas.ac.cn> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13disas/riscv.c: Support disas for Z*inx extensionsWeiwei Li1-4/+12
Support disas for Z*inx instructions only when Zfinx extension is supported. Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn> Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20230523093539.203909-6-liweiwei@iscas.ac.cn> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13disas/riscv.c: Support disas for Zcm* extensionsWeiwei Li1-1/+7
Support disas for Zcmt* instructions only when related extensions are supported. Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn> Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20230523093539.203909-5-liweiwei@iscas.ac.cn> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13target/riscv: Pass RISCVCPUConfig as target_info to disassemble_infoWeiwei Li1-3/+7
Pass RISCVCPUConfig as disassemble_info.target_info to support disas of conflict instructions related to specific extensions. Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn> Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20230523093539.203909-4-liweiwei@iscas.ac.cn> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-05-25disas/riscv: Decode czero.{eqz,nez}Richard Henderson1-0/+6
Acked-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-05-05disas/riscv.c: add disasm support for Zc*Weiwei Li1-1/+227
Zcmp/Zcmt instructions will override disasm for c.fld*/c.fsd* instructions currently. Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn> Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20230307081403.61950-10-liweiwei@iscas.ac.cn> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-03-14Fix incorrect register name in disassembler for fmv,fabs,fneg instructionsMikhail Tyutin1-9/+10
Fix incorrect register name in RISC-V disassembler for fmv,fabs,fneg instructions Signed-off-by: Mikhail Tyutin <m.tyutin@yadro.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <3454991f-7f64-24c3-9a36-f5fa2cc389e1@yadro.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-03-14disas/riscv: Fix slli_uw decodingIvan Klokov1-4/+4
The decoding of the slli_uw currently contains decoding error: shamt part of opcode has six bits, not five. Fixes 3de1fb71("target/riscv: update disas.c for xnor/orn/andn and slli.uw") Signed-off-by: Ivan Klokov <ivan.klokov@syntacore.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20230227090228.17117-1-ivan.klokov@syntacore.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-03-05disas/riscv Fix ctzw disassembleIvan Klokov1-1/+1
Due to typo in opcode list, ctzw is disassembled as clzw instruction. Signed-off-by: Ivan Klokov <ivan.klokov@syntacore.com> Fixes: 02c1b569a15b ("disas/riscv: Add Zb[abcs] instructions") Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Message-ID: <20230217151459.54649-1-ivan.klokov@syntacore.com> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-02-07target/riscv: update disas.c for xnor/orn/andn and slli.uwPhilipp Tomsich1-4/+4
The decoding of the following instructions from Zb[abcs] currently contains decoding/printing errors: * xnor,orn,andn: the rs2 operand is not being printed * slli.uw: decodes and prints the immediate shift-amount as a register (e.g. 'shift-by-2' becomes 'sp') instead of interpreting this as an immediate This commit updates the instruction descriptions to use the appropriate decoding/printing formats. Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20230120151551.1022761-1-philipp.tomsich@vrull.eu> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-10-14disas/riscv.c: rvv: Add disas support for vector instructionsYang Liu1-2/+1430
Tested with https://github.com/ksco/rvv-decoder-tests Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: braces {} are necessary for all arms of this statement Signed-off-by: Yang Liu <liuyang22@iscas.ac.cn> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20220928051842.16207-1-liuyang22@iscas.ac.cn> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-09-27target/riscv: Remove sideleg and sedelegRahul Pathak1-2/+0
sideleg and sedeleg csrs are not part of riscv isa spec anymore, these csrs were part of N extension which is removed from the riscv isa specification. These commits removed all traces of these csrs from riscv spec (https://github.com/riscv/riscv-isa-manual) - commit f8d27f805b65 ("Remove or downgrade more references to N extension (#674)") commit b6cade07034d ("Remove N extension chapter for now") Signed-off-by: Rahul Pathak <rpathak@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20220824145255.400040-1-rpathak@ventanamicro.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-09-07target/riscv: fix shifts shamt value for rv128cFrédéric Pétrot1-6/+21
For rv128c shifts, a shamt of 0 is a shamt of 64, while for rv32c/rv64c it stays 0 and is a hint instruction that does not change processor state. For rv128c right shifts, the 6-bit shamt is in addition sign extended to 7 bits. Signed-off-by: Frédéric Pétrot <frederic.petrot@univ-grenoble-alpes.fr> Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220710110451.245567-1-frederic.petrot@univ-grenoble-alpes.fr> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-04-29disas/riscv.c: rvk: add disas support for Zbk* and Zk* instructionsWeiwei Li1-1/+172
Co-authored-by: Ruibo Lu <luruibo2000@163.com> Co-authored-by: Zewen Ye <lustrew@foxmail.com> Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn> Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20220423023510.30794-14-liweiwei@iscas.ac.cn> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-01-08target/riscv: setup everything for rv64 to support rv128 executionFrédéric Pétrot1-0/+5
This patch adds the support of the '-cpu rv128' option to qemu-system-riscv64 so that we can indicate that we want to run rv128 executables. Still, there is no support for 128-bit insns at that stage so qemu fails miserably (as expected) if launched with this option. Signed-off-by: Frédéric Pétrot <frederic.petrot@univ-grenoble-alpes.fr> Co-authored-by: Fabien Portas <fabien.portas@grenoble-inp.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20220106210108.138226-8-frederic.petrot@univ-grenoble-alpes.fr [ Changed by AF - Rename CPU to "x-rv128" ] Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-10-07disas/riscv: Add Zb[abcs] instructionsPhilipp Tomsich1-3/+154
With the addition of Zb[abcs], we also need to add disassembler support for these new instructions. Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210911140016.834071-17-philipp.tomsich@vrull.eu Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2019-06-27disas/riscv: Fix `rdinstreth` constraintWladimir J. van der Laan1-2/+3
The constraint for `rdinstreth` was comparing the csr number to 0xc80, which is `cycleh` instead. Fix this. Signed-off-by: Wladimir J. van der Laan <laanwj@gmail.com> Signed-off-by: Michael Clark <mjc@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-06-27disas/riscv: Disassemble reserved compressed encodings as illegalMichael Clark1-17/+45
Due to the design of the disassembler, the immediate is not known during decoding of the opcode; so to handle compressed encodings with reserved immediate values (non-zero), we need to add an additional check during decompression to match reserved encodings with zero immediates and translate them into the illegal instruction. The following compressed opcodes have reserved encodings with zero immediates: c.addi4spn, c.addi, c.lui, c.addi16sp, c.srli, c.srai, c.andi and c.slli Signed-off-by: Michael Clark <mjc@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> [Palmer: Broke long lines] Reviewed-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-04-18disas: Rename include/disas/bfd.h back to include/disas/dis-asm.hMarkus Armbruster1-1/+1
Commit dc99065b5f9 (v0.1.0) added dis-asm.h from binutils. Commit 43d4145a986 (v0.1.5) inlined bfd.h into dis-asm.h to remove the dependency on binutils. Commit 76cad71136b (v1.4.0) moved dis-asm.h to include/disas/bfd.h. The new name is confusing when you try to match against (pre GPLv3+) binutils. Rename it back. Keep it in the same directory, of course. Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190417191805.28198-17-armbru@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-03-19RISC-V: Remove unnecessary disassembler constraintsMichael Clark1-138/+0
Remove machine generated constraints that are not referenced by the pseudo-instruction constraints. Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Sagar Karandikar <sagark@eecs.berkeley.edu> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Cc: Alistair Francis <Alistair.Francis@wdc.com> Signed-off-by: Michael Clark <mjc@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-05-06RISC-V: Fix missing break statement in disassemblerMichael Clark1-1/+2
This fixes an issue when disassembling rv128 c.sqsp, where the code erroneously fell through to c.swsp. Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Sagar Karandikar <sagark@eecs.berkeley.edu> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Cc: Alistair Francis <Alistair.Francis@wdc.com> Cc: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-05-06RISC-V: Include instruction hex in disassemblyMichael Clark1-19/+20
This was added to help debug issues using -d in_asm. It is useful to see the instruction bytes, as one can detect if one is trying to execute ASCII or device-tree magic. Cc: Sagar Karandikar <sagark@eecs.berkeley.edu> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Michael Clark <mjc@sifive.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
2018-03-28RISC-V: Fix incorrect disassembly for addiwMichael Clark1-1/+1
This fixes a bug in the disassembler constraints used to lift instructions into pseudo-instructions, whereby addiw instructions are always lifted to sext.w instead of just lifting addiw with a zero immediate. An associated fix has been made to the metadata used to machine generate the disseasembler: https://github.com/michaeljclark/riscv-meta/ commit/4a6b2f3898430768acfe201405224d2ea31e1477 Cc: Sagar Karandikar <sagark@eecs.berkeley.edu> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2018-03-07RISC-V DisassemblerMichael Clark1-0/+3048
The RISC-V disassembler has no dependencies outside of the 'disas' directory so it can be applied independently. The majority of the disassembler is machine-generated from instruction set metadata: - https://github.com/michaeljclark/riscv-meta Expected checkpatch errors for consistency and brevity reasons: ERROR: line over 90 characters ERROR: trailing statements should be on next line ERROR: space prohibited between function name and open parenthesis '(' Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Clark <mjc@sifive.com>
generated by cgit v1.1 at 2024-08-17 11:33:20 +0000