106 AMD Geode™ LX Processors Data Book
CPU Core Register Descriptions
33234H
00001A03h R/W FPU Reserved MSR (FPU_RSVD_MSR) 00000000_00000000h Page202
00001A10h R/W FPU x87 Control Word MSR (FPU_CW_MSR) 00000000_00000040h Page203
00001A11h R/W FPU x87 Status Word MSR (FPU_SW_MSR) 00000000_00000000h Page203
00001A12h R/W FPU x87 Tag Word MSR (FPU_TW_MSR) 00000000_00000000h Page203
00001A13h RO FPU Busy MSR (FPU_BUSY_MSR) 00000000_00000000h Page204
00001A14h RO FPU Register Map MSR (FPU_MAP_MSR) 00000000_76543210h Page 204
00001A40h R/W Mantissa of R0 MSR (FPU_MR0_MSR) xxxxxxxx_xxxxxxxxh Page205
00001A41h R/W Exponent of R0 MSR (FPU_ER0_MSR) 00000000_0000xxxxh Page 206
00001A42h R/W Mantissa of R1 MSR (FPU_MR1_MSR) xxxxxxxx_xxxxxxxxh Page205
00001A43h R/W Exponent of R1 MSR (FPU_ER1_MSR) 00000000_0000xxxxh Page 206
00001A44h R/W Mantissa of R2 MSR (FPU_MR2_MSR) xxxxxxxx_xxxxxxxxh Page205
00001A45h R/W Exponent of R2 MSR (FPU_ER2_MSR) 00000000_0000xxxxh Page 206
00001A46h R/W Mantissa of R3 MSR (FPU_MR3_MSR) xxxxxxxx_xxxxxxxxh Page205
00001A47h R/W Exponent of R3 MSR (FPU_ER3_MSR) 00000000_0000xxxxh Page 206
00001A48h R/W Mantissa of R4 MSR (FPU_MR4_MSR) xxxxxxxx_xxxxxxxxh Page205
00001A49h R/W Exponent of R4 MSR (FPU_ER4_MSR) 00000000_0000xxxxh Page 206
00001A4Ah R/W Mantissa of R5 MSR (FPU_MR5_MSR) xxxxxxxx_xxxxxxxxh Page205
00001A4Bh R/W Exponent of R5 MSR (FPU_ER5_MSR) 00000000_0000xxxxh Page 206
00001A4Ch R/W Mantissa of R6 MSR (FPU_MR6_MSR) xxxxxxxx_xxxxxxxxh Page205
00001A4Dh R/W Exponent of R6 MSR (FPU_ER6_MSR) 00000000_0000xxxxh Page206
00001A4Eh R/W Mantissa of R7 MSR (FPU_MR7_MSR) xxxxxxxx_xxxxxxxxh Page205
00001A4Fh R/W Exponent of R7 MSR (FPU_ER7_MSR) 00000000_0000xxxxh Page 206
00001A50h R/W Mantissa of R8 MSR (FPU_MR8_MSR) xxxxxxxx_xxxxxxxxh Page205
00001A51h R/W Exponent of R8 MSR (FPU_ER8_MSR) 00000000_0000xxxxh Page 206
00001A52h R/W Mantissa of R9 MSR (FPU_MR9_MSR) xxxxxxxx_xxxxxxxxh Page205
00001A53h R/W Exponent of R9 MSR (FPU_ER9_MSR) 00000000_0000xxxxh Page 206
00001A54h R/W Mantissa of R10 MSR (FPU_MR10_MSR) xxxxxxxx_xxxxxxxxh Page 205
00001A55h R/W Exponent of R10 MSR (FPU_ER10_MSR) 00000000 _0000xxxxh Page 206
00001A56h R/W Mantissa of R11 MSR (FPU_MR11_MSR) xxxxxxxx_xxxxxxxxh Page 205
00001A57h R/W Exponent of R11 MSR (FPU_ER11_MSR) 00000000 _0000xxxxh Page 206
00001A58h R/W Mantissa of R12 MSR (FPU_MR12_MSR) xxxxxxxx_xxxxxxxxh Page 205
00001A59h R/W Exponent of R12 MSR (FPU_ER12_MSR) 00000000 _0000xxxxh Page 206
00001A5Ah R/W Mantissa of R13 MSR (FPU_MR13_MSR) xxxxxxxx_xxxxxxxxh Page 205
00001A5Bh R/W Exponent of R13 MSR (FPU_ER13_MSR) 00000000_0000xxxxh Page206
00001A5Ch R/W Mantissa of R14 MSR (FPU_MR14_MSR) xxxxxxxx_xxxxxxxxh Page 205
00001A5Dh R/W Exponent of R14 MSR (FPU_ER14_MSR) 00000000_0000xxxxh Page206
00001A5Eh R/W Mantissa of R15 MSR (FPU_MR15_MSR) xxxxxxxx_xxxxxxxxh Page 205
00001A5Fh R/W Exponent of R15 MSR (FPU_ER15_MSR) 00000000_0000xxxxh Page206
00001A60h-
00001A6Fh
R/W FPU Reserved MSRs (FPU_RSVD_MSR) xxxxxxxx_xxxxxxxxh Page207
Table 5-13. CPU Core Specific MSRs Summar y (Continued)
MSR
Address Type Register Name Reset Value Reference