@node _bios_memsize, bios
@findex _bios_memsize
@subheading Syntax

@example
#include <bios.h>

unsigned _bios_memsize(void);
@end example

@subheading Description

This function returns the amount of system memory in 1K blocks (up to
640K).

@subheading Return Value

Size of memory (in K).

@subheading Portability

@portability !ansi, !posix

@subheading Example

@example
printf("This system has %d bytes of memory\n", _bios_memsize() * 1024);
@end example