2025-04-15 22:20:46 +03:00
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# FNSTSW instruction tests
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# Format: RawBytes;Instructions
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RawBytes;Instructions
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# FNSTSW AX - Store FPU status word in AX without checking for pending unmasked exceptions
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DFE0;[{ "Type": "Fnstsw", "Operands": ["ax"] }]
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# FSTSW AX - Store FPU status word in AX
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9BDFE0;[{ "Type": "Fstsw", "Operands": ["ax"] }]
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# FSTSW m2byte - Store FPU status word to memory
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9BDD3C25;[{ "Type": "Fstsw", "Operands": ["word ptr [eax]"] }]
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2025-04-15 22:35:14 +03:00
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9BDD3C24;[{ "Type": "Fstsw", "Operands": ["word ptr [esp]"] }]
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9BDD3C2C;[{ "Type": "Fstsw", "Operands": ["word ptr [esp]"] }]
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9BDD3C23;[{ "Type": "Fstsw", "Operands": ["word ptr [ebx]"] }]
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9BDD3C21;[{ "Type": "Fstsw", "Operands": ["word ptr [ecx]"] }]
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9BDD3C22;[{ "Type": "Fstsw", "Operands": ["word ptr [edx]"] }]
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9BDD3C26;[{ "Type": "Fstsw", "Operands": ["word ptr [esi]"] }]
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9BDD3C27;[{ "Type": "Fstsw", "Operands": ["word ptr [edi]"] }]
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2025-04-15 22:20:46 +03:00
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# FNSTSW m2byte - Store FPU status word to memory without checking for pending unmasked exceptions
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DD3C25;[{ "Type": "Fnstsw", "Operands": ["word ptr [eax]"] }]
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2025-04-15 22:35:14 +03:00
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DD3C24;[{ "Type": "Fnstsw", "Operands": ["word ptr [esp]"] }]
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DD3C2C;[{ "Type": "Fnstsw", "Operands": ["word ptr [esp]"] }]
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DD3C23;[{ "Type": "Fnstsw", "Operands": ["word ptr [ebx]"] }]
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DD3C21;[{ "Type": "Fnstsw", "Operands": ["word ptr [ecx]"] }]
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DD3C22;[{ "Type": "Fnstsw", "Operands": ["word ptr [edx]"] }]
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DD3C26;[{ "Type": "Fnstsw", "Operands": ["word ptr [esi]"] }]
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DD3C27;[{ "Type": "Fnstsw", "Operands": ["word ptr [edi]"] }]
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# FSTSW/FNSTSW with displacement
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9BDD7C2510000000;[{ "Type": "Fstsw", "Operands": ["word ptr [eax+0x10]"] }]
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9BDD7C2520000000;[{ "Type": "Fstsw", "Operands": ["word ptr [eax+0x20]"] }]
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DD7C2510000000;[{ "Type": "Fnstsw", "Operands": ["word ptr [eax+0x10]"] }]
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DD7C2520000000;[{ "Type": "Fnstsw", "Operands": ["word ptr [eax+0x20]"] }]
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# FSTSW/FNSTSW with SIB addressing
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9BDD3C04;[{ "Type": "Fstsw", "Operands": ["word ptr [esp+eax*1]"] }]
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9BDD3C4C;[{ "Type": "Fstsw", "Operands": ["word ptr [esp+ecx*2]"] }]
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9BDD3C94;[{ "Type": "Fstsw", "Operands": ["word ptr [esp+edx*4]"] }]
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9BDD3CDC;[{ "Type": "Fstsw", "Operands": ["word ptr [esp+ebx*8]"] }]
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DD3C04;[{ "Type": "Fnstsw", "Operands": ["word ptr [esp+eax*1]"] }]
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DD3C4C;[{ "Type": "Fnstsw", "Operands": ["word ptr [esp+ecx*2]"] }]
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DD3C94;[{ "Type": "Fnstsw", "Operands": ["word ptr [esp+edx*4]"] }]
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DD3CDC;[{ "Type": "Fnstsw", "Operands": ["word ptr [esp+ebx*8]"] }]
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# FSTSW/FNSTSW with segment override prefixes
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269BDD3C25;[{ "Type": "Fstsw", "Operands": ["word ptr es:[eax]"] }]
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2E9BDD3C25;[{ "Type": "Fstsw", "Operands": ["word ptr cs:[eax]"] }]
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369BDD3C25;[{ "Type": "Fstsw", "Operands": ["word ptr ss:[eax]"] }]
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3E9BDD3C25;[{ "Type": "Fstsw", "Operands": ["word ptr ds:[eax]"] }]
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649BDD3C25;[{ "Type": "Fstsw", "Operands": ["word ptr fs:[eax]"] }]
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659BDD3C25;[{ "Type": "Fstsw", "Operands": ["word ptr gs:[eax]"] }]
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26DD3C25;[{ "Type": "Fnstsw", "Operands": ["word ptr es:[eax]"] }]
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2EDD3C25;[{ "Type": "Fnstsw", "Operands": ["word ptr cs:[eax]"] }]
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36DD3C25;[{ "Type": "Fnstsw", "Operands": ["word ptr ss:[eax]"] }]
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3EDD3C25;[{ "Type": "Fnstsw", "Operands": ["word ptr ds:[eax]"] }]
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64DD3C25;[{ "Type": "Fnstsw", "Operands": ["word ptr fs:[eax]"] }]
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65DD3C25;[{ "Type": "Fnstsw", "Operands": ["word ptr gs:[eax]"] }]
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