638 AMD Geode™ LX Processors Data Book
Instruction Set
33234H
JNBE/JA Jump on Not Below or Equal/Above -------- r
8-bit Displacement 77 + 1 1
Full Displacement 0F 87 +++ 1 1
JNE/JNZ Jump on Not Equal/Not Zero -------- r
8-bit Displacement 75 + 1 1
Full Displacement 0F 85 +++ 1 1
JNL/JGE Jump on Not Less/Greater or Equal -------- r
8-bit Displacement 7D + 1 1
Full Displacement 0F 8D +++ 1 1
JNLE/JG Jump on Not Less or Equal/Greater -------- r
8-bit Displacement 7F + 1 1
Full Displacement 0F 8F +++ 1 1
JNO Jump on Not Overflow -------- r
8-bit Displacement 71 + 1 1
Full Displacement 0F 81 +++ 1 1
JNP/JPO Jump on Not Parity/Parity Odd -------- r
8-bit Displacement 7B + 1 1
Full Displacement 0F 8B +++ 1 1
JNS Jump on Not Sign -------- r
8-bit Displacement 79 + 1 1
Full Displacement 0F 89 +++ 1 1
JO Jump on Overflow -------- r
8-bit Displacement 70 + 1 1
Full Displacement 0F 80 +++ 1 1
JP/JPE Jump on Parity/Parity Even -------- r
8-bit Displacement 7A + 1 1
Full Displacement 0F 8A +++ 1 1
JS Jump on Sign -------- r
8-bit Displacement 78 + 1 1
Full Displacement 0F 88 +++ 1 1
LAHF Load AH with Flags 9F 2 2 ---------
LAR Load Access Rights 0F 02 [mod reg r/m] -----x--- a g,h,j,p
From Register/Memory 9
LDS Load Pointer to DS C5 [mod reg r/m] 4 9/15 --------- b h,i,j
LEA Load Effective Address ---------
No Index Register 8D [mod reg r/m] 1 1
With Index Register 1 1
LEAVE 22
LES Load Pointer to ES C4 [mod reg r/m] 4 9/15 --------- b h,i,j
LFENCE 11
LFS Load Pointer to FS 0F B4 [mod reg r/m] 4 9/15 --------- b h,i,j
LGDT Load GDT Register 0F 01 [mod 010 r/m] 8-9 8-9 --------- b,c h,l
LGS Load Pointer to GS 0F B5 [mod reg r/m] 4 9/15 --------- b h,i,j
LIDT Load IDT Register 0F 01 [mod 011 r/m] 8-9 8-9 --------- b,c h,l
LLDT Load LDT Register 0F 00 [mod 010 r/m] --------- a g,h,j,l
From Register/Memory 8
LMSW Load Machine Status Word ---------
From Register/Memory 0F 01 [mod 110 r/m] 8 8 b,c h,l
LODS Load String A [110 w] 2 2 --------- b h
LOOP Offset Loop/No Loop E2 + 2 2 --------- r
Table 8-26. Processor Core Instruction Set (Continued)
Instruction Opcode
Clock Count
(Reg/Cache Hit) Flags Notes
Real
Mode
Prot’d
Mode ODI TSZA PC
FFFFFFFFF
Real
Mode
Prot’d
Mode