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https://github.com/dolphin-emu/dolphin.git
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bcefc8ba70
- Assemble dialog box instruction automatically filed with the right disassembly instead of .li and the hex since the hex edition is available in "replace instruction"
- Assemble dialog can now deal with absolute addresses computing automatically the offset. For example assembling b ->0x80359370 at the address 0x8035936c will result in the right relative jump. Add -> before any address you want to use as absolute to respect the disassembly syntax
[Disassembler]
- Adjusted disassembly decorations when using assemble dialog.
- Right clicking and assembling "rlwinm r0, r0, 2, 0, 29 (3fffffff)" gets "rlwinm r0, r0, 2, 0, 29" in the dialog box.
- Right clicking and assembling "ps_add p6, p2+p4" gets "ps_add p6, p2, p4" in the dialog box.
- Fixed wrong disassembly of twi / trapi (was missing i before)
- Fixed ps_sel display and variables ordering
- Improved disassembly of ps_ function to support . variants
- Fixed beq+ / beq- disassembly to only support y bit as hint of branch prediction regardless of displacement sign. beq+ -0xC and beq- -0xC are both possible
[Assembler]
1. Added support for pair single p1,...,p31 register for assembly of all ps instructions. "ps_add p6, p2, p4" works instead of "ps_add f6, f2, f4" required before
2. Added support for assembly of Graphics Quantization Registers for assembly. "psq_l p2, 0(r3), 0, qr0" can now be assembled for example
[CICD]
- Added Unit Test for roundtrip between Assembler -> Disassembler -> Assembler
106 lines
4.2 KiB
C++
106 lines
4.2 KiB
C++
// Copyright 2014 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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/* $VER: ppc_disasm.h V1.6 (09.12.2011)
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*
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* Disassembler module for the PowerPC microprocessor family
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* Copyright (c) 1998-2001,2009,2011 Frank Wille
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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// Modified for use with Dolphin
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#pragma once
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#include <string>
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#include <string_view>
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#include "Common/CommonTypes.h"
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namespace Common
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{
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class GekkoDisassembler final
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{
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public:
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static std::string Disassemble(u32 opcode, u32 current_instruction_address, bool for_assemble,
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bool big_endian = true);
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static const char* GetGPRName(u32 index);
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static const char* GetFPRName(u32 index);
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private:
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GekkoDisassembler() = delete;
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static void ill(u32 in);
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static std::string imm(u32 in, int uimm, int type, bool hex);
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static std::string ra_rb(u32 in);
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static std::string rd_ra_rb(u32 in, int mask);
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static std::string fd_ra_rb(u32 in);
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static void trapi(u32 in, unsigned char dmode);
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static void cmpi(u32 in, int uimm);
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static void addi(u32 in, std::string_view ext);
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static size_t branch(u32 in, std::string_view bname, int aform, int bdisp);
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static void bc(u32 in);
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static void bli(u32 in);
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static void mcrf(u32 in, std::string_view suffix);
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static void crop(u32 in, std::string_view n1, std::string_view n2);
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static void nooper(u32 in, std::string_view name);
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static void rlw(u32 in, std::string_view name, int i, bool for_assemble);
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static void ori(u32 in, std::string_view name);
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static void rld(u32 in, std::string_view name, int i);
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static void cmp(u32 in);
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static void trap(u32 in, unsigned char dmode);
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static void dab(u32 in, std::string_view name, int mask, int smode, int chkoe, int chkrc);
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static void rrn(u32 in, std::string_view name, int smode, int chkoe, int chkrc);
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static void mtcr(u32 in);
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static void msr(u32 in, int smode);
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static void mspr(u32 in, int smode);
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static void mtb(u32 in);
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static void sradi(u32 in);
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static void ldst(u32 in, std::string_view name, char reg);
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static void fdabc(u32 in, std::string_view name, int mask);
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static void fmr(u32 in);
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static void fdab(u32 in, std::string_view name);
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static void fcmp(u32 in, char c);
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static void mtfsb(u32 in, int n);
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static void ps(u32 inst, bool for_assemble);
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static void ps_mem(u32 inst);
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static u32* DoDisassembly(bool for_assemble, bool big_endian);
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enum Flags
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{
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PPCF_ILLEGAL = (1 << 0), // Illegal PowerPC instruction
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PPCF_UNSIGNED = (1 << 1), // Unsigned immediate instruction
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PPCF_SUPER = (1 << 2), // Supervisor level instruction
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PPCF_64 = (1 << 3), // 64-bit only instruction
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};
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static u32* m_instr; // Pointer to instruction to disassemble
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static u32* m_iaddr; // Instruction.address., usually the same as instr
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static std::string m_opcode; // Buffer for opcode, min. 10 chars.
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static std::string m_operands; // Operand buffer, min. 24 chars.
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};
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} // namespace Common
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