intJ
80386

T bl a e 8-1. 8 o 61

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CLOCK COUNT NOTES
Real Real
INSTRUCTION FORMAT
Address
Protected
Address
Protected
Mode
or
Virtual
Mode
or
Virtual
Virtual
Address Virtual Addresa
8086
Mode
8086
Mode
Mode
Mode
INTERRUPT INSTRUCTIONS (Continued)
BOUND:
Via Interrupt or Trap Gate to Same Privilege Level 59
g,i,
k,
r
Via
Interrupt or Trap Gate
to Different Privilege Level 99
g,i,
k,
r
From 286 Task to 286 TSS via Task Gate 254
g,i,k,r
From 286 Task to 386 TSS via Task Gate 284
g,i,k,r
From 268 Task to virt 8086 Mode via Task Gate
231
g,i,k,r
From 386 Task to 286 TSS via Task Gate 264
g,i,
k,
r
From 386 Task to 386 TSS
via
Task Gate 294
g,i,
k,
r
From 368 Task to virt 8086 Mode via Task Gate 243
g,i,
k,
r,
From virt 8086 Mode
to
286 TSS via Task Gate 264
g,i,
k,
r
From virt 8086 Mode
to
386 TSS via Task Gate 294
g,i,
k,
r
From virt 8086 md to priv level 0 via Trap Gate or Interrupt Gate 119
INTERRUPT RETURN
IRET =
Interrupt
Return I
11001111
I 22
g,
h,i,k,r
Protected Mode Only (IRET)
To the Same Privilege Level (within task) 38
g,
h,i,k,r
To DiHerent Privilege Level (within task) 82
g,
h,i,k,r
From 286 Task
to
286 TSS 232
h,i,
k,
r
From 286 Task
to
386 TSS 265
h,i,
k,
r
From 286 Task to Virtual 8086 Task 214
h,i,
k,
r
From 286
Task
to
Virtual 8086
Mode
(within task) 60
From 386 Task to 286 TSS
271
h,i,
k,
r
From 386 Task to 386 TSS 275
h,i,
k,
r
From 386 Task to Virtual 8086 Task 224
h,i,
k,
r
From 386 Task to Virtual 8086 Mode (within task) 60
PROCESSOR CONTROL
HLT
=
HALT
I
11110100
I 5 5 I
MOV =
Move
to
and
From
Control/DebuglTest
Registers
CRO/CR2/CR3 from register I
00001111
00100010
11 eee reg
10/4/5 10/4/5
I
Register From CRO-3 I
00001111
00100000
11
eee reg 6 6 I
DRO-3 From Register I
00001111
00100011
11
eee reg 22 22 I
DR6-7
From Register I
00001111
00100011
11
eee reg 16
16
I
Register from
DR6-7
I
00001111
00100001
11
eeereg 14 14 I
Register from DRO-3 I
00001111
00100001
11
eeereg 22 22 I
TR6-7
from Register I
00001111
00100110
11 eeereg
12 12 I
Register from
TR6-7
I
00001111
00100100
11
eee reg
12 12 I
NOP =
No
Operation
I
10010000
3 3
WAIT =
Wail
until
BUSY#
pin
Is
negated I
10011011
6 6
122