if ((regs.x.cflag & 0x01) == 0) return(regs.x.ax); else return(-1);

 

}

 

41

Delete file

 

 

Entry Parameters:

AH = 41

 

 

DS:DX = segment:offset of ASCIIZ file name

 

Returned Values:

if successful : Carry = clear,

 

 

if fail : Carry = set, AX = 2

int TS_delete_file(char *fn)

{

segregs.ds = FP_SEG(fn); regs.x.dx = FP_OFF(fn); regs.h.ah=0x41; int86x(0x21,®s,®s,&segregs);

if ((regs.x.cflag & 0x01) == 0) return(1); else return(-1);

}

42Move file pointer

Entry Parameters: AH = 42

 

AL =

0 offset from beginning

 

 

1 offset from current

 

 

2 offset from end

 

BX = file handle

 

CX = most significant half of offset

 

DX = least significant half of offset

Returned Values:

if successful: Carry = clear,

 

AX = least significant half of new current

 

DX = most significant half of new current

 

if fail:

Carry = set, AX = 6

struct LONG_INT { long ll;

};

struct LONG_INT1 { unsigned int ii1, ii2; };

union LONG_III { struct LONG_INT l; struct LONG_INT1 i; };

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Unitech MR350MKII manual Delete file, Move file pointer