cpu.c File Reference

Motorola MC68xxx Dependent Source. More...

#include <rtems/score/cpuimpl.h>
#include <rtems/score/isr.h>
#include <rtems/score/percpu.h>
#include <rtems/score/tls.h>
#include <rtems/config.h>

Data Structures
struct	_CPU_ISR_handler_entry

Macros
#define	M68K_MOVE_A7   0x3F3C
#define	M68K_JMP   0x4EF9

Functions
void	_CPU_Initialize (void)
	CPU initialization.
uint32_t	_CPU_ISR_Get_level (void)
	Returns the interrupt level of the executing thread.
void	_CPU_ISR_install_raw_handler (uint32_t vector, CPU_ISR_raw_handler new_handler, CPU_ISR_raw_handler *old_handler)
	SPARC specific raw ISR installer.
void	_CPU_ISR_install_vector (uint32_t vector, CPU_ISR_handler new_handler, CPU_ISR_handler *old_handler)
	SPARC specific RTEMS ISR installer.
void	_CPU_Context_save_fp (Context_Control_fp **fp_context_ptr)
void	_CPU_Context_restore_fp (Context_Control_fp **fp_context_ptr)
void	_CPU_Context_Initialize (Context_Control *the_context, void *stack_area_begin, size_t stack_area_size, uint32_t new_level, void(*entry_point)(void), bool is_fp, void *tls_area)
	Initializes the CPU context.

Variables
const unsigned char	_CPU_m68k_BFFFO_table [256]
Context_Control_fp	_fpCCR

Detailed Description

Motorola MC68xxx Dependent Source.

Function Documentation

_CPU_ISR_install_raw_handler()

void _CPU_ISR_install_raw_handler	(	uint32_t	vector,
		CPU_ISR_raw_handler	new_handler,
		CPU_ISR_raw_handler *	old_handler
	)

SPARC specific raw ISR installer.

This routine installs new_handler to be directly called from the trap table.

Parameters

[in]	vector	is the vector number
[in]	new_handler	is the new ISR handler
[in]	old_handler	will contain the old ISR handler

Variable Documentation

_CPU_m68k_BFFFO_table

const unsigned char _CPU_m68k_BFFFO_table[256]

Initial value:

= {
    8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4,
    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
}