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640 AMD Geode™ LX Processors Data Book
Instruction Set
33234H
OUT Output to Port --------- m
Fixed Port E [011w] # 8 8/23
Variable Port E [111w] 8 8/23
OUTS Output String 6 [111w] 12 12/26 --------- b h,m
PAUSE 7
POP Pop Value off Stack --------- b h,i,j
Register 8F [mod 000 r/m] 1 1
Memory 8F [mod 000 r/m] 3 3
Register (short form) 5 [1 reg] 1 1
DS 1F 1 6/13
ES 07 1 6/13
SS 17 1 7/13
FS 0F A1 1 6/13
GS 0F 9A 1 6/13
POPA Pop All General Registers 61 8 8 --------- b h
POPF Pop Stack into FLAGS 9D 2 2 xxxxxxxxx b h,n
PREFIX BYTES --------- m
Assert Hardware LOCK Prefix F0
Address Size Prefix 67
Operand Size Prefix 66
Segment Override Prefix
-CS
-DS
-ES
-FS
-GS
-SS
2E
3E
26
64
65
36
PUSH Push Value onto Stack --------- b h
Register/Memory FF [mod 110 r/m] 1/2 1/2
Register (short form) 5 [0 reg] 1 1
CS 0E 1 1
SS 16 1 1
DS 1E 1 1
ES 06 1 1
FS 0F A0 1 1
GS 0F A8 1 1
Immediate 6 [10s0] ### 1 1
PUSHA Push All General Registers 60 8 8 --------- b h
PUSHF Push FLAGS Register 9C 2 2 --------- b h
RCL Rotate Through Carry Left
Register/Memory by 1 D [000w] [mod 010 r/m] 2 2 x -------x b h
Register/Memory by CL D [001w] [mod 010 r/m] 4-6 4-6 u -------x
Register/Memory by Immediate C [000w] [mod 010 r/m] # 4-6 4-6 u -------x
RCR Rotate Through Carry Right
Register/Memory by 1
Register/Memory by CL
Register/Memory by Immediate
bh
D [000w] [mod 011 r/m] 3-5 3-4 x -------x
D [001w] [mod 011 r/m] 4-7 4-7 u -------x
C [000w] [mod 011 r/m] # 4-7 4-7 u -------x
RDM Leave Debug Management Mode 0F 3A 36+ 36+ xxxxxxxxx s, u s, u
RDMSR Read Tmodel Specific Register (Note 1) 0F 32 5 5 ---------
RDPMC (Note 1) 77
RDTSC Read Time Stamp Counter (Note 1) 0F 31 5 5 ---------
Table 8-26. Processor Core Instruction Set (Continued)
Instruction Opcode
Clock Count
(Reg/Cache Hit) Flags
Notes
Real
Mode
Prot’d
Mode
ODI TSZ APC
FFFFFFFFF
Real
Mode
Prot’d
Mode