Merge pull request #8193 from lioncash/disasm
Common/GekkoDisassembler: Minor changes
This commit is contained in:
Léo Lam
GitHub
commit
a88deda307
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@ -34,12 +34,12 @@
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#include "Common/GekkoDisassembler.h"
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#include <array>
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#include <string>
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#include <fmt/format.h>
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#include "Common/CommonTypes.h"
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#include "Common/StringUtil.h"
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namespace Common
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{
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@ -86,37 +86,68 @@ namespace Common
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#define PPCGETIDX2(x) (((x)&PPCIDX2MASK) >> PPCIDX2SH)
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#define PPCGETSTRM(x) (((x)&PPCSTRM) >> PPCDSH)
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static const char* trap_condition[32] = {
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constexpr std::array<const char*, 32> trap_condition{
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nullptr, "lgt", "llt", nullptr, "eq", "lge", "lle", nullptr,
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"gt", nullptr, nullptr, nullptr, "ge", nullptr, nullptr, nullptr,
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"lt", nullptr, nullptr, nullptr, "le", nullptr, nullptr, nullptr,
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"ne", nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr};
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"ne", nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr,
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};
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static const char* cmpname[4] = {"cmpw", "cmpd", "cmplw", "cmpld"};
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constexpr std::array<const char*, 4> cmpname{
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"cmpw",
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"cmpd",
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"cmplw",
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"cmpld",
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};
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static const char* ps_cmpname[4] = {"ps_cmpu0", "ps_cmpo0", "ps_cmpu1", "ps_cmpo1"};
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constexpr std::array<const char*, 4> ps_cmpname{
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"ps_cmpu0",
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"ps_cmpo0",
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"ps_cmpu1",
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"ps_cmpo1",
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};
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static const char* b_ext[4] = {"", "l", "a", "la"};
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constexpr std::array<const char*, 4> b_ext{
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"",
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"l",
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"a",
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"la",
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};
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static const char* b_condition[8] = {"ge", "le", "ne", "ns", "lt", "gt", "eq", "so"};
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constexpr std::array<const char*, 8> b_condition{
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"ge", "le", "ne", "ns", "lt", "gt", "eq", "so",
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};
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static const char* b_decr[16] = {"nzf", "zf", nullptr, nullptr, "nzt", "zt", nullptr, nullptr,
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"nz", "z", nullptr, nullptr, "nz", "z", nullptr, nullptr};
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constexpr std::array<const char*, 16> b_decr{
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"nzf", "zf", nullptr, nullptr, "nzt", "zt", nullptr, nullptr,
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"nz", "z", nullptr, nullptr, "nz", "z", nullptr, nullptr,
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};
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static const char* regsel[2] = {"", "r"};
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constexpr std::array<const char*, 2> regsel{
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"",
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"r",
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};
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static const char* oesel[2] = {"", "o"};
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constexpr std::array<const char*, 2> oesel{
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"",
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"o",
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};
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static const char* rcsel[2] = {"", "."};
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constexpr std::array<const char*, 2> rcsel{
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"",
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".",
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};
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static const char* ldstnames[24] = {"lwz", "lwzu", "lbz", "lbzu", "stw", "stwu", "stb", "stbu",
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"lhz", "lhzu", "lha", "lhau", "sth", "sthu", "lmw", "stmw",
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"lfs", "lfsu", "lfd", "lfdu", "stfs", "stfsu", "stfd", "stfdu"};
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constexpr std::array<const char*, 24> ldstnames{
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"lwz", "lwzu", "lbz", "lbzu", "stw", "stwu", "stb", "stbu", "lhz", "lhzu", "lha", "lhau",
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"sth", "sthu", "lmw", "stmw", "lfs", "lfsu", "lfd", "lfdu", "stfs", "stfsu", "stfd", "stfdu",
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};
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static const char* regnames[32] = {"r0", "sp", "rtoc", "r3", "r4", "r5", "r6", "r7",
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"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
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"r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
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"r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31"};
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constexpr std::array<const char*, 32> regnames{
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"r0", "sp", "rtoc", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10",
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"r11", "r12", "r13", "r14", "r15", "r16", "r17", "r18", "r19", "r20", "r21",
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"r22", "r23", "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
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};
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// Initialize static class variables.
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u32* GekkoDisassembler::m_instr = nullptr;
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@ -473,7 +504,7 @@ void GekkoDisassembler::cmpi(u32 in, int uimm)
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i = (int)PPCGETCRD(in);
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if (i != 0)
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{
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m_operands += fmt::format("cr{}, ", '0' + i);
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m_operands += fmt::format("cr{}, ", i);
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}
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m_operands += imm(in, uimm, 2, false);
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@ -484,7 +515,7 @@ void GekkoDisassembler::cmpi(u32 in, int uimm)
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}
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}
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void GekkoDisassembler::addi(u32 in, const std::string& ext)
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void GekkoDisassembler::addi(u32 in, std::string_view ext)
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{
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if ((in & 0x08000000) && !PPCGETA(in))
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{
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@ -508,7 +539,7 @@ void GekkoDisassembler::addi(u32 in, const std::string& ext)
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}
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// Build a branch instr. and return number of chars written to operand.
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size_t GekkoDisassembler::branch(u32 in, const char* bname, int aform, int bdisp)
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size_t GekkoDisassembler::branch(u32 in, std::string_view bname, int aform, int bdisp)
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{
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int bo = (int)PPCGETD(in);
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int bi = (int)PPCGETA(in);
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@ -608,7 +639,7 @@ void GekkoDisassembler::mcrf(u32 in, char c)
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}
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}
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void GekkoDisassembler::crop(u32 in, const char* n1, const char* n2)
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void GekkoDisassembler::crop(u32 in, std::string_view n1, std::string_view n2)
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{
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int crd = (int)PPCGETD(in);
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int cra = (int)PPCGETA(in);
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@ -616,8 +647,8 @@ void GekkoDisassembler::crop(u32 in, const char* n1, const char* n2)
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if ((in & 1) == 0)
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{
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m_opcode = fmt::format("cr{}", (cra == crb && n2) ? n2 : n1);
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if (cra == crb && n2)
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m_opcode = fmt::format("cr{}", (cra == crb && !n2.empty()) ? n2 : n1);
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if (cra == crb && !n2.empty())
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m_operands = fmt::format("{}, {}", crd, cra);
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else
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m_operands = fmt::format("{}, {}, {}", crd, cra, crb);
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@ -628,7 +659,7 @@ void GekkoDisassembler::crop(u32 in, const char* n1, const char* n2)
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}
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}
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void GekkoDisassembler::nooper(u32 in, const char* name, unsigned char dmode)
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void GekkoDisassembler::nooper(u32 in, std::string_view name, unsigned char dmode)
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{
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if (in & (PPCDMASK | PPCAMASK | PPCBMASK | 1))
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{
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@ -641,7 +672,7 @@ void GekkoDisassembler::nooper(u32 in, const char* name, unsigned char dmode)
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}
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}
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void GekkoDisassembler::rlw(u32 in, const char* name, int i)
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void GekkoDisassembler::rlw(u32 in, std::string_view name, int i)
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{
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int s = (int)PPCGETD(in);
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int a = (int)PPCGETA(in);
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@ -654,13 +685,13 @@ void GekkoDisassembler::rlw(u32 in, const char* name, int i)
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bsh, mb, me, HelperRotateMask(bsh, mb, me));
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}
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void GekkoDisassembler::ori(u32 in, const char* name)
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void GekkoDisassembler::ori(u32 in, std::string_view name)
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{
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m_opcode = name;
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m_operands = imm(in, 1, 1, true);
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}
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void GekkoDisassembler::rld(u32 in, const char* name, int i)
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void GekkoDisassembler::rld(u32 in, std::string_view name, int i)
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{
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int s = (int)PPCGETD(in);
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int a = (int)PPCGETA(in);
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@ -685,7 +716,7 @@ void GekkoDisassembler::cmp(u32 in)
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i = (int)PPCGETCRD(in);
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if (i != 0)
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m_operands += fmt::format("cr{},", static_cast<char>('0' + i));
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m_operands += fmt::format("cr{},", i);
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m_operands += ra_rb(in);
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}
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@ -729,8 +760,8 @@ void GekkoDisassembler::trap(u32 in, unsigned char dmode)
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}
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// Standard instruction: xxxx rD,rA,rB
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void GekkoDisassembler::dab(u32 in, const char* name, int mask, int smode, int chkoe, int chkrc,
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unsigned char dmode)
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void GekkoDisassembler::dab(u32 in, std::string_view name, int mask, int smode, int chkoe,
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int chkrc, unsigned char dmode)
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{
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if (chkrc >= 0 && ((in & 1) != (unsigned int)chkrc))
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{
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@ -751,7 +782,7 @@ void GekkoDisassembler::dab(u32 in, const char* name, int mask, int smode, int c
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}
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// Last operand is no register: xxxx rD,rA,NB
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void GekkoDisassembler::rrn(u32 in, const char* name, int smode, int chkoe, int chkrc,
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void GekkoDisassembler::rrn(u32 in, std::string_view name, int smode, int chkoe, int chkrc,
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unsigned char dmode)
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{
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if (chkrc >= 0 && ((in & 1) != (unsigned int)chkrc))
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@ -912,7 +943,7 @@ void GekkoDisassembler::sradi(u32 in)
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m_operands = fmt::format("{}, {}, {}", regnames[a], regnames[s], bsh);
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}
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void GekkoDisassembler::ldst(u32 in, const char* name, char reg, unsigned char dmode)
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void GekkoDisassembler::ldst(u32 in, std::string_view name, char reg, unsigned char dmode)
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{
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int s = (int)PPCGETD(in);
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int a = (int)PPCGETA(in);
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@ -937,7 +968,7 @@ void GekkoDisassembler::ldst(u32 in, const char* name, char reg, unsigned char d
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}
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// Standard floating point instruction: xxxx fD,fA,fC,fB
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void GekkoDisassembler::fdabc(u32 in, const char* name, int mask, unsigned char dmode)
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void GekkoDisassembler::fdabc(u32 in, std::string_view name, int mask, unsigned char dmode)
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{
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int err = 0;
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@ -974,7 +1005,7 @@ void GekkoDisassembler::fmr(u32 in)
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}
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// Indexed float instruction: xxxx fD,rA,rB
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void GekkoDisassembler::fdab(u32 in, const char* name, int mask)
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void GekkoDisassembler::fdab(u32 in, std::string_view name, int mask)
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{
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m_opcode = name;
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m_operands = fd_ra_rb(in, mask);
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@ -1189,7 +1220,7 @@ void GekkoDisassembler::ps(u32 inst)
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int i = (int)PPCGETCRD(inst);
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if (i != 0)
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m_operands += fmt::format("cr{}, ", '0' + i);
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m_operands += fmt::format("cr{}, ", i);
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m_operands += fmt::format("p{}, p{}", FA, FB);
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return;
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}
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@ -1359,7 +1390,7 @@ u32* GekkoDisassembler::DoDisassembly(bool big_endian)
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break;
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case 129:
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crop(in, "andc", nullptr); // crandc
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crop(in, "andc", {}); // crandc
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break;
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case 150:
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@ -1371,11 +1402,11 @@ u32* GekkoDisassembler::DoDisassembly(bool big_endian)
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break;
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case 225:
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crop(in, "nand", nullptr); // crnand
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crop(in, "nand", {}); // crnand
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break;
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case 257:
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crop(in, "and", nullptr); // crand
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crop(in, "and", {}); // crand
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break;
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case 289:
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@ -1383,7 +1414,7 @@ u32* GekkoDisassembler::DoDisassembly(bool big_endian)
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break;
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case 417:
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crop(in, "orc", nullptr); // crorc
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crop(in, "orc", {}); // crorc
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break;
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case 449:
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@ -2328,28 +2359,30 @@ std::string GekkoDisassembler::Disassemble(u32 opcode, u32 current_instruction_a
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return m_opcode.append("\t").append(m_operands);
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}
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static const char* gprnames[] = {
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constexpr std::array<const char*, 32> gpr_names{
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" r0", " r1 (sp)", " r2 (rtoc)", " r3", " r4", " r5", " r6", " r7", " r8", " r9", "r10",
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"r11", "r12", "r13", "r14", "r15", "r16", "r17", "r18", "r19", "r20", "r21",
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"r22", "r23", "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31"};
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"r22", "r23", "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
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};
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const char* GekkoDisassembler::GetGPRName(u32 index)
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{
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if (index < 32)
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return gprnames[index];
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if (index < gpr_names.size())
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return gpr_names[index];
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return nullptr;
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}
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static const char* fprnames[] = {" f0", " f1", " f2", " f3", " f4", " f5", " f6", " f7",
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" f8", " f9", "f10", "f11", "f12", "f13", "f14", "f15",
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"f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",
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"f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31"};
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constexpr std::array<const char*, 32> fpr_names{
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" f0", " f1", " f2", " f3", " f4", " f5", " f6", " f7", " f8", " f9", "f10",
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"f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", "f19", "f20", "f21",
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"f22", "f23", "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31",
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};
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const char* GekkoDisassembler::GetFPRName(u32 index)
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{
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if (index < 32)
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return fprnames[index];
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if (index < fpr_names.size())
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return fpr_names[index];
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return nullptr;
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}
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@ -34,11 +34,10 @@
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#pragma once
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#include <cstdint>
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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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#include "Common/StringUtil.h"
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namespace Common
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{
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@ -62,30 +61,31 @@ private:
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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, const std::string& ext);
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static size_t branch(u32 in, const char* bname, int aform, int bdisp);
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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, char c);
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static void crop(u32 in, const char* n1, const char* n2);
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static void nooper(u32 in, const char* name, unsigned char dmode);
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static void rlw(u32 in, const char* name, int i);
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static void ori(u32 in, const char* name);
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static void rld(u32 in, const char* name, int i);
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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, unsigned char dmode);
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static void rlw(u32 in, std::string_view name, int i);
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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, const char* name, int mask, int smode, int chkoe, int chkrc,
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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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unsigned char dmode);
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static void rrn(u32 in, std::string_view name, int smode, int chkoe, int chkrc,
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unsigned char dmode);
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static void rrn(u32 in, const char* name, int smode, int chkoe, int chkrc, unsigned char dmode);
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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, const char* name, char reg, unsigned char dmode);
|
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static void fdabc(u32 in, const char* name, int mask, unsigned char dmode);
|
||||
static void ldst(u32 in, std::string_view name, char reg, unsigned char dmode);
|
||||
static void fdabc(u32 in, std::string_view name, int mask, unsigned char dmode);
|
||||
static void fmr(u32 in);
|
||||
static void fdab(u32 in, const char* name, int mask);
|
||||
static void fdab(u32 in, std::string_view name, int mask);
|
||||
static void fcmp(u32 in, char c);
|
||||
static void mtfsb(u32 in, int n);
|
||||
static void ps(u32 inst);
|
||||
|
|
|
|||
Loading…
Reference in New Issue