參數(shù)資料
型號: AMDK86
英文描述: AMD K86 - AMD K86 Family BIOS and Software Tools Developers Guide
中文描述: AMD的K86 - AMD的K86系列BIOS和軟件工具開發(fā)人員指南
文件頁數(shù): 86/144頁
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代理商: AMDK86
74
AMD-K5 Processor
AMD K86 Family BIOS and Software Tools Developers Guide
21062E/0—June 1997
Preliminary Information
Table 26.
Instructions that Modify the IF or VIF Flags—Virtual-8086 Mode Interrupt
Extensions (VME)
1
TYPE
PE
1
1
1
1
1
1
1
1
1
1
1
1
VM
1
1
1
1
1
1
1
1
1
1
1
1
VME
1
1
1
1
1
1
1
1
1
1
1
1
PVI
IOPL
3
<
3
3
<
3
3
<
3
3
<
3
3
<
3
3
<
3
GP(0)
No
No
No
No
3
No
No
No
Yes
No
No
No
Yes
IF
VIF
CLI
CLI
STI
STI
PUSHF
PUSHF
PUSHFD
PUSHFD
POPF
POPF
POPFD
POPFD
IRET from
V86 Mode
IRET from
V86 Mode
IRETD from
V86 Mode
IRETD from
V86 Mode
IRETD from
Protected Mode
2
Notes:
1.
All Virtual-8086 mode tasks run at CPL = 3.
2.
All protected virtual interrupt handlers run at CPL = 0.
3.
GP(0) if an attempt is made to set VIF when VIP = 1.
“—” Not applicable.
IF
0
No Change
IF
1
No Change
Pushed
Not Pushed
Pushed
Popped
Not Popped Popped from IF
Popped
No Change
VIF
0
No Change
VIF
1
Not Pushed
Pushed into IF
Pushed
Not Popped
Not Popped
1
1
1
3
No
Popped
Not Popped
1
1
1
<
3
No
3
Not Popped Popped from IF
1
1
1
3
No
Popped
Not Popped
1
1
1
<
3
Yes
1
1
1
No
3
Popped
Popped
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