AMD x86-64 Architecture Programmer's Manual, Volume 4, 128-Bit ...

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AMD64 Technology 26568—Rev. 3.05—September 2003 MXCSR Flags Affected FZ RC PM UM OM ZM DM IM DAZ PE UE OE ZE DE IE Exceptions 200 MULSS M M M M M 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Note: A flag that may be set to one or cleared to zero is M (modified). Unaffected flags are blank. Exception Real Invalid opcode, #UD X X X Virtual 8086 Protected Cause of Exception X X X X X X The SSE instructions are not supported, as indicated by bit 25 of CPUID standard function 1. The emulate bit (EM) of CR0 was set to 1. The operating-system FXSAVE/FXRSTOR support bit (OSFXSR) of CR4 was cleared to 0. X X X There was an unmasked SIMD floating-point exception while CR4.OSXMMEXCPT = 0. See SIMD Floating-Point Exceptions, below, for details. Device not available, #NM X X X The task-switch bit (TS) of CR0 was set to 1. Stack, #SS X X X A memory address exceeded the stack segment limit or was non-canonical. General protection, #GP X X X A memory address exceeded a data segment limit or was non-canonical. X A null data segment was used to reference memory. Page fault, #PF X X A page fault resulted from the execution of the instruction. Alignment check, #AC X X An unaligned memory reference was performed while alignment checking was enabled. SIMD Floating-Point X X X There was an unmasked SIMD floating-point exception Exception, #XF while CR4.OSXMMEXCPT = 1. See SIMD Floating-Point Exceptions, below, for details. SIMD Floating-Point Exceptions Invalid-operation exception (IE) X X X A source operand was an SNaN value. X X X ±Zero was multipled by ±infinity. Overflow exception (OE) X X X A rounded result was too large to fit into the format of the destination operand.
26568—Rev. 3.05—September 2003 AMD64 Technology Exception Real Virtual 8086 Protected Cause of Exception Underflow exception (UE) X X X A rounded result was too small to fit into the format of the destination operand. Denormalized-operand exception (DE) X X X A source operand was a denormal value. Precision exception (PE) X X X A result could not be represented exactly in the destination format. MULSS 201
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