The GNO Kernel is accessed through system
calls. The actual procedure is very simple from C: simply
#include the appropriate header file as noted in the synopsis of
the call's manual page, and call it as you would any other C
function. From
assembly language the procedure is no more
difficult, using the advanced macros provided for the APW and
ORCA assemblers. Make sure, however, that you have defined a word
variable errno. Lowercase is important, use the 'case on'
and 'case off' directives to ensure that the definition of errno is case-sensitive. The system call interface libraries store any
error codes returned by the kernel in this variable.
If you are going to be accessing the kernel
from a language other than those for which interfaces are
provided, then the following information is for you.
Subsections
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