00001352h, Ffffffff_00000000h – AMD Geode LX [email protected] User Manual
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138
AMD Geode™ LX Processors Data Book
CPU Core Register Descriptions
33234H
5.5.2.32 Extended Debug Registers 5 and 4 MSR (XDR5_XDR4_MSR)
XDR5/XDR4_MSR provides access to Extended Debug Register 5 (XDR5) and Extended Debug Register 4 (XDR4). XDR4
contains an opcode match value. XDR5 contains an opcode match mask.
5.5.2.33 Extended Debug Registers 7 and 6 MSR (XDR7_XDR6_MSR)
XDR7_XDR6_MSR provides access to the extended breakpoint enables, types, lengths, and status.
MSR Address
00001352h
Type
R/W
Reset Value
FFFFFFFF_00000000h
XDR5_XDR4_MSR Register Map
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_MASK4
OPCODE_MASK4
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
PREFIX_VALUE4
OPCODE_VALUE4
PN PR PL PC PS PO PA PF
XDR5_XDR4_MSR Bit Descriptions
Bit
Name
Description
63:56
PREFIX_MASK4
Prefix Mask Value for Extended Breakpoint 4.
55:32
OPCODE_MASK4
Opcode Mask Value for Extended Breakpoint 4.
31
PN
REPNE/REPNZ Prefix Value for Extended Breakpoint 4.
30
PR
REP/REPE/REPZ Prefix Value for Extended Breakpoint 4.
29
PL
LOCK Prefix Value for Extended Breakpoint 4.
28
PC
CS Segment Override Prefix Value for Extended Breakpoint 4.
27
PS
SS/DS/ES/FS/GS Segment Override Prefix Value for Extended Breakpoint 4.
26
PO
Operand Size Prefix Value for Extended Breakpoint 4.
25
PA
Address Size Prefix Value for Extended Breakpoint 4.
24
PF
0F or 0F 0F Prefix Value for Extended Breakpoint 4.
23:0
OPCODE_VALUE4
Opcode Match Value for Extended Breakpoint 4.
MSR Address
00001353h
Type
R/W
Reset Value
xxxxxxxx_xxxxxxxxh
XDR7_XDR6_MSR Register Map
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
LEN3
TYPE3
LEN2
TYPE2
LEN1
TYPE1
LEN0
TYPE0
RSVD
E6 E5 E4 E3 E2 E1 E0
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
RSVD (1FFFFh)
BS
RSVD (1
)
BI
RSVD (1Fh)
B6 B5 B5 B3 B2 B1 B0