Table of Contents
Note: This API call is for DOS and Win16 personality only. Use Family API for portability.
Int 21H, AH=5BH
Version
3 and higher
Brief
CREATE NEW FILE
Family API
Input
AH = 5Bh CX = file attribute (see #01420 at AX=4301h) DS:DX -> ASCIZ filename
Return
CF clear if successful
AX = file handle opened for read/write in compatibility mode
CF set on error
AX = error code (03h,04h,05h,50h) (see #01680)
Notes
unlike AH=3Ch, this function will fail if the specified file exists rather than truncating it; this permits its use in creating semaphore files because it is an atomic “test and set” operation
under the FlashTek X-32 DOS extender, the filename pointer is in DS:EDX
See also
Note
Text based on Ralf Brown Interrupt List Release 61
| osFree Macro Library | |
|---|---|
| Video I/O | @SetMode @SetCurSz @SetCurPos @GetCur @SetPage @ScrollUp @ScrollDn @Scroll @GetChAtr @PutChAtr @PutCh @SetPalet @SetColor @SetDot @GetDot @WrtTTY @VideoState @GetMode @GetDisplay @GetVideoState @GetEGAInfo @Cls |
| Hardware info | @Equipment @MemSize |
| Serial I/O | @AuxInit @AuxSendChar @AuxRecieveChar @AuxStatus |
| Tape I/O | @TapeOn @TapeOff @TapeRead @TapeWrite |
| Keyboard I/O | @KbdStatus @CharIn @CharPeek |
| Printer I/O | @PrnPrint @PrnInit @PrnStatus |
| Disk I/O | @DskReset @DskStatus @DskRead @DskWrite @DskVerify @DskFormat |
| Date and Time | @SetTime @GetTime |
| Mouse | @MouInit @MouShowPointer @MouStatus @MouSetPos @MouSetMickey @MouRegion |
| Memory manager | @ModBlok SET_BLOCK |