PM_allocRealSeg
Allocate a block of real mode memory
Declaration
void * PMAPI PM_allocRealSeg(
uint size,
uint *r_seg,
uint *r_off)
Prototype In
pmapi.h
Parameters
size |
Size of memory block to allocate |
r_seg |
Place to store real mode segment address of memory block |
r_off |
Place to store real mode segment offset of memory block |
Return Value
Linear pointer to the real mode memory block, NULL on failure.
Description
This function is used to allocate a block of real mode memory for communicating with the real mode BIOS. If this function succeeds, the r_seg and r_off parameters will be filled in with the real mode address of the memory block, and the function will return a regular C style linear pointer to the memory block. This is only supported for operating systems that support BIOS access (ie: the PM_haveBIOSAccess function returns true).
See Also
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