back2root:ibm-pc-ms-dos:interrupts:int_21:int_21_51
Différences
Ci-dessous, les différences entre deux révisions de la page.
Les deux révisions précédentesRévision précédenteProchaine révision | Révision précédenteDernière révisionLes deux révisions suivantes |
back2root:ibm-pc-ms-dos:interrupts:int_21:int_21_51 [2023/01/10 15:39] – modification externe 127.0.0.1 | back2root:ibm-pc-ms-dos:interrupts:int_21:int_21_51 [2023/01/16 17:54] – modification externe 127.0.0.1 |
---|
| |
<WRAP round box> | <WRAP round box> |
* The process ID number is actually the segment address of program's PSP. This in conjunction with [[back2root:ibm-pc-ms-dos:interrupts:int_21:int_21_50|INT 21,50]] is useful for TSR's to access their own file handle table in their respective [[back2root:ibm-pc-ms-dos:program_segment_prefix|PSP]]. | * The process ID number is actually the segment address of program's PSP. This in conjunction with [[back2root:ibm-pc-ms-dos:interrupts:int_21:int_21_50|INT 21,50]] is useful for TSR's to access their own file handle table in their respective [[back2root:ibm-pc-ms-dos:hardware:informations:program_segment_prefix|PSP]]. |
* this function cannot be called while in an [[back2root:ibm-pc-ms-dos:interrupts:int_28|INT 28]] handler in DOS 2.x unless the critical error flag is set or stack corruption will occur | * this function cannot be called while in an [[back2root:ibm-pc-ms-dos:interrupts:int_28|INT 28]] handler in DOS 2.x unless the critical error flag is set or stack corruption will occur |
* [[back2root:ibm-pc-ms-dos:interrupts:int_21:int_21_62|INT 21,62]] is highly recommended for DOS 3.x due to a possible bug when activated from a TSR. DOS may switch to the wrong internal stack which may cause a problems with TSR's if called during an INT 28. | * [[back2root:ibm-pc-ms-dos:interrupts:int_21:int_21_62|INT 21,62]] is highly recommended for DOS 3.x due to a possible bug when activated from a TSR. DOS may switch to the wrong internal stack which may cause a problems with TSR's if called during an INT 28. |
back2root/ibm-pc-ms-dos/interrupts/int_21/int_21_51.txt · Dernière modification : 2024/04/08 01:03 de 185.191.171.14