User Guide

xiv Tables

AMD64 Technology 24592—Rev. 3.15—November 2009

Table 6-2. Types of Rounding ..........................................................245

Table 6-3. Mapping Between Internal and Software-Visible Tag Bits ...........................246

Table 6-4. Instructions that Access the x87 Environment .....................................248

Table 6-5. Range of Finite Floating-Point Values ...........................................252

Table 6-6. Example of Denormalization ..................................................255

Table 6-7. NaN Results from NaN Source Operands.........................................256

Table 6-8. Supported Floating-Point Encodings ............................................257

Table 6-9. Unsupported Floating-Point Encodings ..........................................259

Table 6-10. Indefinite-Value Encodings ...................................................259

Table 6-11. Precision Control Field (PC) Values and Bit Precision ..............................260

Table 6-12. Types of Rounding ..........................................................260

Table 6-13. rFLAGS Conditions for FCMOVcc .............................................265

Table 6-14. rFLAGS Values for FCOMI Instruction ..........................................271

Table 6-15. Condition-Code Settings for FXAM.............................................272

Table 6-16. Instruction Effects on rFLAGS .................................................277

Table 6-17. x87 Floating-Point (#MF) Exception Flags .......................................280

Table 6-18. Invalid-Operation Exception (IE) Causes .........................................281

Table 6-19. Priority of x87 Floating-Point Exceptions ........................................283

Table 6-20. x87 Floating-Point (#MF) Exception Masks ......................................284

Table 6-21. Masked Responses to x87 Floating-Point Exceptions ...............................285

Table 6-22. Unmasked Responses to x87 Floating-Point Exceptions .............................288