3-18
Software Environment and Extensions
AMD-K5 Processor Technical Reference Manual
18524C/0—Nov1996
Table 3-5C.
Instructions that Modify the IF or VIF Flags—Virtual-8086 Mode
TYPE
PE
VM
VME
PVI
IOPL
GP(0)
IF
VIF
CLI
1
1
0
—
3
No
IF
←
0
No Change
CLI
1
1
0
—
<
3
Yes
—
—
STI
1
1
0
—
3
No
IF
←
1
No Change
STI
1
1
0
—
<
3
Yes
—
—
PUSHF
1
1
0
—
3
No
Pushed
—
PUSHF
1
1
0
—
<
3
Yes
—
—
PUSHFD
1
1
0
—
3
No
Pushed
Pushed
PUSHFD
1
1
0
—
<
3
Yes
—
—
POPF
1
1
0
—
3
No
Popped
—
POPF
1
1
0
—
<
3
Yes
—
—
POPFD
1
1
0
—
3
No
Popped
Not Popped
POPFD
1
1
0
—
<
3
Yes
—
—
IRETD
2
1
1
0
—
—
No
Popped
Popped
Notes:
1. All Virtual-8086 mode tasks run at CPL = 3.
2. All protected virtual interrupt handlers run at CPL = 0.
— Not applicable.
Summary of Contents for AMD-K5
Page 1: ...AMD K5 Processor Technical Reference Manual TM...
Page 10: ...x AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...
Page 24: ...1 4 Overview AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...
Page 54: ...2 30 Internal Architecture AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...
Page 116: ...4 26 Performance AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...
Page 356: ...6 44 System Design AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...
Page 380: ...7 24 Test and Debug AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...
Page 396: ...A 16 AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...
Page 406: ...I 10 Index AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...