G1-266B-85-1.8
| Model | G1-266B-85-1.8 |
| Description | Processor Series Low Power Integrated x86 Solution |
| PDF file | Total 247 pages (File size: 4M) |
| Chip Manufacturer | NSC |
Geode™ GX1 Processor Series
Instruction Set
(Continued)
Table 8-27. Processor Core Instruction Set Summary (Continued)
Flags
Instruction
REPE CMPS
Compare String
Find non-match
REPE SCAS
Scan String
Find non-AL/AX/EAX
REPNE CMPS
Compare String
Find match
REPNE SCAS
Scan String
Find AL/AX/EAX
RET
Return from Subroutine
Within Segment
Within Segment Adding Immediate to SP
Intersegment
Intersegment Adding Immediate to SP
Protected Mode: Different Privilege Level
-Intersegment
-Intersegment Adding Immediate to SP
ROL
Rotate Left
Register/Memory by 1
Register/Memory by CL
Register/Memory by Immediate
ROR
Rotate Right
Register/Memory by 1
Register/Memory by CL
Register/Memory by Immediate
RSDC
Restore Segment Register and Descriptor
RSLDT
Restore LDTR and Descriptor
RSTS
Restore TSR and Descriptor
RSM
Resume from SMM Mode
SAHF
Store AH in FLAGS
SAL
Shift Left Arithmetic
Register/Memory by 1
Register/Memory by CL
Register/Memory by Immediate
SAR
Shift Right Arithmetic
Register/Memory by 1
Register/Memory by CL
Register/Memory by Immediate
SBB
Integer Subtract with Borrow
Register to Register
Register to Memory
Memory to Register
Immediate to Register/Memory
Immediate to Accumulator (short form)
SCAS
Scan String
To Register/Memory
To Register/Memory
SETE/SETZ
Set Byte on Equal/Zero
To Register/Memory
To Register/Memory
To Register/Memory
0F 94 [mod 000 r/m]
0F 9C [mod 000 r/m]
0F 9E [mod 000 r/m]
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1
1
1
1
1
1
h
h
h
SETL/SETNGE
Set Byte on Less/Not Greater or Equal
SETLE/SETNG
Set Byte on Less or Equal/Not Greater
1[10dw] [11 reg r/m]
1[100w] [mod reg r/m]
1[101w] [mod reg r/m]
8[00sw] [mod 011 r/m] ###
1[110w] ###
A [111w]
0F 92 [mod 000 r/m]
0F 96 [mod 000 r/m]
x
-
-
-
-
-
-
-
-
-
-
-
x
-
-
x
-
-
x
-
-
x
-
-
x
-
-
x
-
-
-
x
x
x
x
x
1
1
1
1
1
2
1
1
1
1
1
1
1
2
1
1
b
h
h
h
b
h
D[000w] [mod 111 r/m]
D[001w] [mod 111 r/m]
C[000w] [mod 111 r/m] #
x
-
-
-
-
-
-
-
x
x
x
x
x
x
u x
u x
u x
x
x
x
2
2
2
2
2
2
b
h
u -
u -
D[000w] [mod 100 r/m]
D[001w] [mod 100 r/m]
C[000w] [mod 100 r/m] #
x
-
-
-
-
-
-
-
x
x
x
x
x
x
u x
u x
u x
x
x
x
1
2
1
1
2
1
b
h
u -
u -
D[000w] [mod 001 r/m]
D[001w] [mod 001 r/m]
C[000w] [mod 001 r/m] #
0F 79 [mod sreg3 r/m]
0F 7B [mod 000 r/m]
0F 7D [mod 000 r/m]
0F AA
9E
x
-
-
-
-
-
-
-
x
-
-
-
-
-
-
-
x
-
-
-
-
-
-
-
x
x
-
-
-
-
-
-
x
x
-
-
-
-
-
-
x
x
-
-
-
-
-
-
x
x
x
x
x
-
-
-
x
x
2
2
2
11
11
11
57
1
2
2
2
11
11
11
57
1
s
s
s
s
s
s
s
s
b
h
u -
u -
-
-
-
x
-
-
-
-
x
-
D[000w] [mod 000 r/m]
D[001w] [mod 000 r/m]
C[000w] [mod 000 r/m] #
x
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
x
x
x
2
2
2
2
2
2
b
h
u -
u -
C3
C2 ##
CB
CA ##
-
-
-
-
-
-
-
-
-
3
3
10
10
3
3
13
13
35
35
b
g,h,j,k,r
F2 A[111w]
x
-
-
-
x
x
x
x
x
9+3n
9+3n
b
h
F2 A[011w]
x
-
-
-
x
x
x
x
x
11+4n
11+4n
b
h
F3 A[111w]
x
-
-
-
x
x
x
x
x
9+3n
9+3n
b
h
F3 A[011w]
x
-
-
-
x
x
x
x
x
11+4n
11+4n
b
h
Opcode
O D I T S Z A P C
F F F F F F F F F
Real
Mode
Prot’d
Mode
Real
Mode
Prot’d
Mode
Clock Count
(Reg/Cache Hit)
Issues
SETB/SETNAE/SETC
Set Byte on Below/Not Above or Equal/Carry
SETBE/SETNA
Set Byte on Below or Equal/Not Above
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