Intel® Extended Memory 64 Technology Software Developer's Guide

FBLD—Load Binary Coded DecimalOpcode Instruction 64-Bit Mode Compat/Leg DescriptionModeDF /4 FBLD m80 dec Valid Valid Convert BCD value to floating-point and pushonto the FPU stack.IA-32e Mode OperationSame as legacy mode.FPU Flags AffectedC1 Set to 1 if stack overflow occurred; otherwise, cleared to 0.C0, C2, C3 Undefined.Floating-Point Exceptions#ISStack overflow occurred.Protected Mode Exceptions#GP(0)#SS(0)#NM#MF#PF(fault-code)#AC(0)If a memory operand effective address is outside the CS, DS, ES, FS, or GS segment limit.If the DS, ES, FS, or GS register contains a null segment selector.If a memory operand effective address is outside the SS segment limit.EM or TS in CR0 is set.If there is a pending x87 FPU exception.If a page fault occurs.If alignment checking is enabled and an unaligned memory reference is made while thecurrent privilege level is 3.Real-Address Mode Exceptions#GP#SS#NM#MFIf a memory operand effective address is outside the CS, DS, ES, FS, or GS segment limit.If a memory operand effective address is outside the SS segment limit.EM or TS in CR0 is set.If there is a pending x87 FPU exception.Virtual-8086 Mode Exceptions#GP(0)#SS(0)#NM#MF#PF(fault-code)#AC(0)If a memory operand effective address is outside the CS, DS, ES, FS, or GS segment limit.If a memory operand effective address is outside the SS segment limit.EM or TS in CR0 is set.If there is a pending x87 FPU exception.If a page fault occurs.If alignment checking is enabled and an unaligned memory reference is made.Compatibility Mode ExceptionsSame as for protected mode exceptions.2-164 Vol. 1