arch/archdoc.h File Reference

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Detailed Description

Documentation Definitions for the Acess 2 Architecture Interface.

Author:

John Hodge (thePowersGang)

Acess 2 allows different architecture builds to be made off almost the same source tree. The difference between the trees is the inclusion of a different directory from the "Kernel/arch/" directory that contains the architecture specific intialisation and management code. Each achitecture tree must provide all the definitions from this document in some form or another (usually in the most efficient way avaliable) The values and types used in this documentation are a guide only and will most probably be incorrect for most architectures.

Go to the source code of this file.

Data Structures
struct	tSyscallRegs
	Register state passed to the syscall handler. More...
Defines
#define	MAX_CPUS   1
	Maximum number of CPUs supported by this architecture driver (in the current build).
#define	BITS   32
	Number of bits in a machine word (Uint).
#define	PHYS_BITS   32
	Number of valid bits in a tPAddr.
Typedefs
typedef Uint	size_t
	Counter/Byte count type.
typedef Uint32	tVAddr
	Virtual address type.
typedef Uint32	tPAddr
	Physical Address type.
typedef struct sMemoryState	tMemoryState
	Opaque structure definining the MMU state for a task.
typedef struct sTaskState	tTaskState
	Opque structure defining the CPU state for a task.
Atomic Types
typedef unsigned int	Uint
	Unsigned machine native integer.
typedef unsigned char	Uint8
	Unsigned 8-bit integer.
typedef unsigned short	Uint16
	Unsigned 16-bit integer.
typedef unsigned long	Uint32
	Unsigned 32-bit integer.
typedef unsigned long long	Uint64
	Unsigned 64-bit integer.
typedef signed int	Sint
	Signed Machine Native integer.
typedef signed char	Sint8
	Signed 8-bit integer.
typedef signed short	Sint16
	Signed 16-bit integer.
typedef signed long	Sint32
	Signed 32-bit integer.
typedef signed long long	Sint64
	Signed 16-bit integer.
Syncronisation Primitives
#define	LOCK(lockptr)   do{while(*(tSpinlock*)lockptr)Threads_Yield();*(tSpinlock*)lockptr=1;}while(0)
	Acquire a spinlock.
#define	RELEASE(lockptr)   do{*(tSpinlock*)lockptr=0;}while(0)
	Release a held spinlock.
typedef volatile int	tSpinlock
	Spinlock type.