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LibX86: FPU instructions never have a lock prefix

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Nico Weber 2020-07-28 22:02:07 -04:00 committed by Andreas Kling
parent 8593bdb711
commit 8e8cbe6a12
Notes: sideshowbarker 2024-07-19 04:28:12 +09:00 
Author: https://github.com/nico
Commit: https://github.com/SerenityOS/serenity/commit/8e8cbe6a128
Pull-request: https://github.com/SerenityOS/serenity/pull/2918
Reviewed-by: https://github.com/awesomekling
1 changed files with 7 additions and 7 deletions
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14
Libraries/LibX86/Instruction.cpp
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@ -204,7 +204,7 @@ static void build_slash(InstructionDescriptor* table, u8 op, u8 slash, const cha
build(d.slashes, slash, mnemonic, format, handler, lock_prefix_allowed); build(d.slashes, slash, mnemonic, format, handler, lock_prefix_allowed);
} }
static void build_slash_rm(InstructionDescriptor* table, u8 op, u8 slash, u8 rm, const char* mnemonic, InstructionFormat format, InstructionHandler handler, IsLockPrefixAllowed lock_prefix_allowed = LockPrefixNotAllowed) static void build_slash_rm(InstructionDescriptor* table, u8 op, u8 slash, u8 rm, const char* mnemonic, InstructionFormat format, InstructionHandler handler)
{ {
ASSERT((rm & 0xc0) == 0xc0); ASSERT((rm & 0xc0) == 0xc0);
ASSERT(((rm >> 3) & 7) == slash); ASSERT(((rm >> 3) & 7) == slash);
@ -222,7 +222,7 @@ static void build_slash_rm(InstructionDescriptor* table, u8 op, u8 slash, u8 rm,
} }
} }
build(d.slashes, rm & 7, mnemonic, format, handler, lock_prefix_allowed); build(d.slashes, rm & 7, mnemonic, format, handler, LockPrefixNotAllowed);
} }
static void build_0f(u8 op, const char* mnemonic, InstructionFormat format, InstructionHandler impl, IsLockPrefixAllowed lock_prefix_allowed = LockPrefixNotAllowed) static void build_0f(u8 op, const char* mnemonic, InstructionFormat format, InstructionHandler impl, IsLockPrefixAllowed lock_prefix_allowed = LockPrefixNotAllowed)
@ -285,16 +285,16 @@ static void build_0f_slash(u8 op, u8 slash, const char* mnemonic, InstructionFor
build_slash(s_0f_table32, op, slash, mnemonic, format, impl, lock_prefix_allowed); build_slash(s_0f_table32, op, slash, mnemonic, format, impl, lock_prefix_allowed);
} }
static void build_slash_rm(u8 op, u8 slash, u8 rm, const char* mnemonic, InstructionFormat format, InstructionHandler impl, IsLockPrefixAllowed lock_prefix_allowed = LockPrefixNotAllowed) static void build_slash_rm(u8 op, u8 slash, u8 rm, const char* mnemonic, InstructionFormat format, InstructionHandler impl)
{ {
build_slash_rm(s_table16, op, slash, rm, mnemonic, format, impl, lock_prefix_allowed); build_slash_rm(s_table16, op, slash, rm, mnemonic, format, impl);
build_slash_rm(s_table32, op, slash, rm, mnemonic, format, impl, lock_prefix_allowed); build_slash_rm(s_table32, op, slash, rm, mnemonic, format, impl);
} }
static void build_slash_reg(u8 op, u8 slash, const char* mnemonic, InstructionFormat format, InstructionHandler impl, IsLockPrefixAllowed lock_prefix_allowed = LockPrefixNotAllowed) static void build_slash_reg(u8 op, u8 slash, const char* mnemonic, InstructionFormat format, InstructionHandler impl)
{ {
for (int i = 0; i < 8; ++i) for (int i = 0; i < 8; ++i)
build_slash_rm(op, slash, 0xc0 | (slash << 3) | i, mnemonic, format, impl, lock_prefix_allowed); build_slash_rm(op, slash, 0xc0 | (slash << 3) | i, mnemonic, format, impl);
} }
[[gnu::constructor]] static void build_opcode_tables() [[gnu::constructor]] static void build_opcode_tables()