Ci-dessous, les différences entre deux révisions de la page.
Prochaine révision | Révision précédente | ||
back2root:ibm-pc-ms-dos:instr:out [2023/02/25 22:02] – créée frater | back2root:ibm-pc-ms-dos:instr:out [2023/03/03 23:55] (Version actuelle) – modification externe 127.0.0.1 | ||
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Ligne 19: | Ligne 19: | ||
</ | </ | ||
{{tablelayout? | {{tablelayout? | ||
- | ^ ^ Clocks | + | ^ ^ Clocks |
- | ^ Operands | + | ^ Operands |
- | | accum,immed8 | + | | immed8, |
- | | accum, | + | | immed8,accum (pm) | - |
- | | accum,DX | + | | DX, |
- | | accum,DX (PM) | - | + | | DX, |
<WRAP round box> | <WRAP round box> | ||
* 386+ protected mode timings depend on privilege levels. | * 386+ protected mode timings depend on privilege levels. | ||
+ | |||
{{tablelayout? | {{tablelayout? | ||
| first number is the timing if: | CPL ¾ IOPL | | | first number is the timing if: | CPL ¾ IOPL | | ||
- | | second number is the timing if: | CPL > IOPL or in VM 86 mode (386) | | + | | second number is the timing if: | CPL > IOPL |
- | | ::: | CPL ‗ IOPL (486) | + | |
| third number is the timing when: | virtual mode on 486 processor | | third number is the timing when: | virtual mode on 486 processor | ||
- | * 486 virtual mode always requires 27 cycles | ||
</ | </ | ||
- | {{page>: | + | {{page>: |