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Vol. 2A 3-425
INSTRUCTION SET REFERENCE, A-M
FXSAVE—Save x87 FPU, MMX Technology, SSE, and SSE2 State
Operation
IF 64-Bit Mode
THEN
IF REX.W = 1
Reserved ST4/MM4 96
Reserved ST5/MM5 112
Reserved ST6/MM6 128
Reserved ST7/MM7 144
XMM0 160
XMM1 176
XMM2 192
XMM3 208
XMM4 224
XMM5 240
XMM6 256
XMM7 272
XMM8 288
XMM9 304
XMM10 320
XMM11 336
XMM12 352
XMM13 368
XMM14 384
XMM15 400
Reserved 416
Reserved 432
Reserved 448
Reserved 464
Reserved 480
Reserved 496
Table 3-52. Layout of the 64-bit-mode FXSAVE Map with
Default OperandSize (Contd.)
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0