MFSH_SEGALLOC - Allocate a segment

Purpose   

Allocate memory. 

Calling Sequence   

int far pascal MFSH_SEGALLOC(usFlag, cbSeg, pusSel)

unsigned short usFlag;
unsigned long cbSeg;
unsigned short far * pusSel;

Where   

usFlag is set to 1 if the memory must be below the 1-meg boundary or 0 if 
its location does not matter. 

cbSeg contains the length of the segment. 

pusSel is a pointer to a word in which the helper returns the selector of 
the segment. 
  

Returns   

If no error is detected, a zero error code is returned. If an error is 
detected, one of the following error codes is returned: 

oERROR_NOT_ENOUGH_MEMORY 

too much memory is allocated. 

oERROR_PROTECTION_VIOLATION 

the supplied address is invalid. 

oERROR_INVALID_PARAMETER 

either the supplied flag or length is invalid. 
  

Remarks   

This function allocates memory with the following attributes: 

oAllocated from the GDT 

oNon-swappable 
  

Memory not allocated specifically below the 1-Meg boundary may be given to 
the FSD by passing the selectors through pMiniFSD (see MFS_INIT and 
FS_INIT).