AMD Geode LX 600@0.7W Data Book page 140

33234H
5.5.2.34 Extended Debug Registers 9 and 8 MSR (XDR9_XDR8_MSR)
MSR Address 00001354h
Type R/W
Reset Value FFFFFFFF_00000000h
XDR9_XDR8_MSR provides access to Extended Debug Register 9 (XDR9) and Extended Debug Register 8 (XDR8).
XDR8 contains an opcode match value. XDR9 contains an opcode match mask.
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
PREFIX_MASK5
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
PREFIX_VALUE5
PN PR PL PC PS PO PA PF
Bit Name
63:56 PREFIX_MASK5
55:32 OPCODE_MASK5
31 PN
30 PR
29 PL
28 PC
27 PS
26 PO
25 PA
24 PF
23:0 OPCODE_VALUE5
140
XDR9_XDR8_MSR Register Map
XDR9_XDR8_MSR Bit Descriptions
Description
Prefix Mask Value for Extended Breakpoint 5.
Opcode Mask Value for Extended Breakpoint 5.
REPNE/REPNZ Prefix Value for Extended Breakpoint 5.
REP/REPE/REPZ Prefix Value for Extended Breakpoint 5.
LOCK Prefix Value for Extended Breakpoint 5.
CS Segment Override Prefix Value for Extended Breakpoint 5.
SS/DS/ES/FS/GS Segment Override Prefix Value for Extended Breakpoint 5.
Operand Size Prefix Value for Extended Breakpoint 5.
Address Size Prefix Value for Extended Breakpoint 5.
0F or 0F 0F Prefix Value for Extended Breakpoint 5.
Opcode Match Value for Extended Breakpoint 5.
CPU Core Register Descriptions
OPCODE_MASK5
9 8 7
OPCODE_VALUE5
AMD Geode™ LX Processors Data Book
6 5 4 3 2 1 0