iAPX 286 Operating System Writers Guide 1983

INTRODUCTION TO PROTECTED MULTITASKING ON THE iAPX 286Figure 1-9 illustrates the process of constructing a dynamic system. The Builder creates a load ablemodule containing those operating-system functions that permanently reside in the running operatingsystem, and it also creates a file that contains information about linking to operating-system primitives.Either a static linker (such as Intel's Binder) or a dynamically linking loader can use this informationto help dynamically loaded tasks use operating-system functions.KERNELMODULEAMODULEBPLAN FORPROTECTED MULTITASKING SYSTEMOPERATINGSYSTEMANDAPPLICATIONMODULES(FROMASM286,PLlM'286,PASCAL 286,FORTRAN 286,BND286)•BUILDSPECIFI·CATIONSMEMORYIMAGEAPPLICATION•DEVICEDRIVERO.S.APPLICATIONMODULEAMODULEBBOOT·LOADERKERNELlOTGOT121960·4Figure 1-8. Building a Static System1-10121960·001