Instruction Set (Continued)
Table 9-27. Processor Core Instruction Set Summary (Continued)
Real
Mode
Prot’d Real Prot’d
Mode Mode Mode
Flags
O
F
D
F
I
F
T
F
S
F
Z
F
A
F
P
F
C
F
Clock Count
(Reg/Cache Hit)
Instruction
CALL Subroutine Call
Opcode
Notes
Direct Within Segment
E8 +++
-
-
-
-
-
-
-
-
-
3
3/4
9
3
b
h,j,k,r
Register/Memory Indirect Within Segment
FF [mod 010 r/m]
3/4
Direct Intersegment
9A [unsigned full offset,
selector]
14
24
45
51+2m
183
189
123
186
192
126
-Call Gate to Same Privilege
-Call Gate to Different Privilege No Par’s
-Call Gate to Different Privilege m Par’s
-16-bit Task to 16-bit TSS
-16-bit Task to 32-bit TSS
-16-bit Task to V86 Task
-32-bit Task to 16-bit TSS
-32-bit Task to 32-bit TSS
-32-bit Task to V86 Task
Indirect Intersegment
FF [mod 011 r/m]
11
15
25
46
52+2m
184
190
124
187
193
127
-Call Gate to Same Privilege
-Call Gate to Different Privilege No Par’s
-Call Gate to Different Privilege m Par’s
-16-bit Task to 16-bit TSS
-16-bit Task to 32-bit TSS
-16-bit Task to V86 Task
-32-bit Task to 16-bit TSS
-32-bit Task to 32-bit TSS
-32-bit Task to V86 Task
CBW Convert Byte to Word
CDQ Convert Doubleword to Quadword
CLC Clear Carry Flag
98
-
-
-
-
-
-
-
-
-
-
0
-
-
-
-
-
-
-
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
3
2
1
4
6
7
3
3
2
1
4
6
7
3
99
-
F8
0
-
CLD Clear Direction Flag
FC
FA
CLI Clear Interrupt Flag
-
m
l
CLTS Clear Task Switched Flag
CMC Complement the Carry Flag
0F 06
F5
-
c
x
CMOVA/CMOVNBE Move if Above/Not Below or Equal
Register, Register/Memory
0F 47 [mod reg r/m]
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
r
r
r
r
r
r
r
r
r
r
r
r
r
r
CMOVBE/CMOVNA Move if Below or Equal/Not Above
Register, Register/Memory
0F 46 [mod reg r/m]
CMOVAE/CMOVNB/CMOVNC Move if Above or Equal/Not Below/Not Carry
Register, Register/Memory
0F 43 [mod reg r/m]
CMOVB/CMOVC/CMOVNAE Move if Below/Carry/Not Above or Equal
Register, Register/Memory
0F 42 [mod reg r/m]
0F 44 [mod reg r/m]
0F 45 [mod reg r/m]
CMOVE/CMOVZ Move if Equal/Zero
Register, Register/Memory
CMOVNE/CMOVNZ Move if Not Equal/Not Zero
Register, Register/Memory
CMOVG/CMOVNLE Move if Greater/Not Less or Equal
Register, Register/Memory
0F 4F [mod reg r/m]
CMOVLE/CMOVNG Move if Less or Equal/Not Greater
Register, Register/Memory
0F 4E [mod reg r/m]
CMOVL/CMOVNGE Move if Less/Not Greater or Equal
Register, Register/Memory
0F 4C [mod reg r/m]
CMOVGE/CMOVNL Move if Greater or Equal/Not Less
Register, Register/Memory
CMOVO Move if Overflow
0F 4D [mod reg r/m]
Register, Register/Memory
0F 40 [mod reg r/m]
0F 41 [mod reg r/m]
0F 4A [mod reg r/m]
0F 4B [mod reg r/m]
CMOVNO Move if No Overflow
Register, Register/Memory
CMOVP/CMOVPE Move if Parity/Parity Even
Register, Register/Memory
CMOVNP/CMOVPO Move if Not Parity/Parity Odd
Register, Register/Memory
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