Ci-dessous, les différences entre deux révisions de la page.
Les deux révisions précédentesRévision précédenteProchaine révision | Révision précédente | ||
back2root:ibm-pc-ms-dos:interrupts:int_13:start [2023/01/19 21:38] – [and return with:] frater | back2root:ibm-pc-ms-dos:interrupts:int_13:start [2023/01/19 21:49] (Version actuelle) – [Interruption 13h - Disks - WIP] frater | ||
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Ligne 8: | Ligne 8: | ||
{{anchor: | {{anchor: | ||
- | The 1983 version of the "IBM XT BIOS Technical Reference" | + | [1] : The 1983 version of the "IBM XT BIOS Technical Reference" |
This is probably due to misunderstanding the design of the disk BIOS. Upon bootup the hard disk BIOS replaces the default INT 13h diskette handler with the hard disk INT 13h handler. | This is probably due to misunderstanding the design of the disk BIOS. Upon bootup the hard disk BIOS replaces the default INT 13h diskette handler with the hard disk INT 13h handler. | ||
Ligne 30: | Ligne 30: | ||
| AH | status of operation | | AH | status of operation | ||
+ | <WRAP round box> | ||
* INT 13 diskette read functions should be retried at least 3 times to assure the disk motor has time to spin up to speed | * INT 13 diskette read functions should be retried at least 3 times to assure the disk motor has time to spin up to speed | ||
* physical sector numbers can be converted to and from DOS sector numbers with the following formulas: | * physical sector numbers can be converted to and from DOS sector numbers with the following formulas: | ||
- | <WRAP round box> | + | < |
<m 15> | <m 15> | ||
+ | </ | ||
+ | <WRAP center round tip 75%> | ||
<m 15> | <m 15> | ||
+ | </ | ||
+ | <WRAP center round tip 75%> | ||
<m 15> | <m 15> | ||
+ | </ | ||
+ | <WRAP center round tip 75%> | ||
<m 15> | <m 15> | ||
</ | </ |