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JSEEK.C
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C/C++ Source or Header
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1990-02-26
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391b
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21 lines
#include "aai86.h"
#include "aados.h"
/* Reposition file pointer */
long dos_seek (Jfile f, long offset, int mode)
{
union i86_regs reg;
reg.b.ah = 0x42;
reg.b.al = mode;
reg.w.bx = f;
reg.w.cx = i86_ptr_seg((void *)offset);
reg.w.dx = i86_ptr_offset((void *)offset);
if (i86_sysint(0x21,®,®)&1)
return(-1);
else
return(i86_make_long(reg.w.ax, reg.w.dx));
}