Motorola M68K CPU Dependent Source. More...
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Data Structures | |
| struct | Context_Control |
| This defines the minimal set of integer and processor state registers that must be saved during a voluntary context switch from one thread to another. More... | |
| struct | Context_Control_fp |
| This defines the complete set of floating point registers that must be saved during any context switch from one thread to another. More... | |
| struct | Context_Control_fp |
| This defines the complete set of floating point registers that must be saved during any context switch from one thread to another. More... | |
| struct | CPU_Interrupt_frame |
| This defines the set of integer and processor state registers that must be saved during an interrupt. More... | |
| struct | CPU_Exception_frame |
| The set of registers that specifies the complete processor state. More... | |
| struct | _CPU_ISR_handler_entry |
Macros | |
| #define | CPU_INLINE_ENABLE_DISPATCH TRUE |
| #define | CPU_SIMPLE_VECTORED_INTERRUPTS TRUE |
| #define | CPU_HAS_SOFTWARE_INTERRUPT_STACK 1 |
| #define | CPU_HAS_HARDWARE_INTERRUPT_STACK 0 |
| #define | CPU_ALLOCATE_INTERRUPT_STACK 1 |
| #define | CPU_ISR_PASSES_FRAME_POINTER 0 |
| #define | CPU_HARDWARE_FP FALSE |
| #define | CPU_SOFTWARE_FP FALSE |
| #define | CPU_ALL_TASKS_ARE_FP FALSE |
| #define | CPU_IDLE_TASK_IS_FP FALSE |
| #define | CPU_USE_DEFERRED_FP_SWITCH TRUE |
| #define | CPU_PROVIDES_IDLE_THREAD_BODY TRUE |
| #define | CPU_STACK_GROWS_UP FALSE |
| #define | CPU_STRUCTURE_ALIGNMENT __attribute__ ((aligned (4))) |
| #define | CPU_TIMESTAMP_USE_STRUCT_TIMESPEC TRUE |
| #define | CPU_BIG_ENDIAN TRUE |
| #define | CPU_LITTLE_ENDIAN FALSE |
| #define | CPU_PER_CPU_CONTROL_SIZE 0 |
| #define | M68K_FP_STATE_SIZE 216 |
| #define | _CPU_Context_Get_SP(_context) (_context)->a7_msp |
| #define | _CPU_Context_Fp_start(_base, _offset) ((void *) _Addresses_Add_offset( (_base), (_offset) ) ) |
| #define | _CPU_Context_Initialize_fp(_fp_area) |
| #define | _CPU_Context_Fp_start(_base, _offset) |
| #define | _CPU_Context_Initialize_fp(_fp_area) |
| #define | M68K_MOVE_A7 0x3F3C |
| #define | M68K_JMP 0x4EF9 |
| #define | CPU_MODES_INTERRUPT_LEVEL 0x00000007 /* interrupt level in mode */ |
| #define | CPU_MODES_INTERRUPT_MASK 0x00000007 /* interrupt level in mode */ |
| #define | CPU_CONTEXT_FP_SIZE sizeof( Context_Control_fp ) |
| #define | CPU_MPCI_RECEIVE_SERVER_EXTRA_STACK 1024 |
| #define | CPU_INTERRUPT_NUMBER_OF_VECTORS 256 |
| #define | CPU_INTERRUPT_MAXIMUM_VECTOR_NUMBER (CPU_INTERRUPT_NUMBER_OF_VECTORS - 1) |
| #define | CPU_PROVIDES_ISR_IS_IN_PROGRESS FALSE |
| #define | CPU_STACK_MINIMUM_SIZE M68K_CPU_STACK_MINIMUM_SIZE |
| #define | CPU_PRIORITY_MAXIMUM M68K_CPU_PRIORITY_MAXIMUM |
| #define | CPU_SIZEOF_POINTER 4 |
| #define | CPU_ALIGNMENT 4 |
| #define | CPU_HEAP_ALIGNMENT CPU_ALIGNMENT |
| #define | CPU_PARTITION_ALIGNMENT CPU_ALIGNMENT |
| #define | CPU_STACK_ALIGNMENT 0 |
| #define | _CPU_Initialize_vectors() |
| #define | _CPU_ISR_Disable(_level) m68k_disable_interrupts( _level ) |
| #define | _CPU_ISR_Enable(_level) m68k_enable_interrupts( _level ) |
| #define | _CPU_ISR_Flash(_level) m68k_flash_interrupts( _level ) |
| #define | _CPU_ISR_Set_level(_newlevel) m68k_set_interrupt_level( _newlevel ) |
| #define | _CPU_Fatal_halt(_source, _error) |
| #define | CPU_USE_GENERIC_BITFIELD_CODE FALSE |
| #define | CPU_USE_GENERIC_BITFIELD_DATA FALSE |
| #define | _CPU_Bitfield_Find_first_bit(_value, _output) |
| #define | _CPU_Priority_Mask(_bit_number) ( 0x8000 >> (_bit_number) ) |
| #define | _CPU_Priority_bits_index(_priority) (_priority) |
Typedefs | |
| typedef uint32_t | CPU_Counter_ticks |
Functions | |
| uint32_t | _CPU_ISR_Get_level (void) |
| Return the current interrupt disable level for this task in the format used by the interrupt level portion of the task mode. More... | |
| 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. More... | |
| void * | _CPU_Thread_Idle_body (uintptr_t ignored) |
| This routine is the CPU dependent IDLE thread body. More... | |
| void | _CPU_Initialize (void) |
| CPU initialization. More... | |
| void | _CPU_ISR_install_raw_handler (uint32_t vector, proc_ptr new_handler, proc_ptr *old_handler) |
| This routine installs a "raw" interrupt handler directly into the processor's vector table. More... | |
| void | _CPU_ISR_install_vector (uint32_t vector, proc_ptr new_handler, proc_ptr *old_handler) |
| This routine installs an interrupt vector. More... | |
| void | _CPU_Install_interrupt_stack (void) |
| This routine installs the hardware interrupt stack pointer. More... | |
| void | _CPU_Context_switch (Context_Control *run, Context_Control *heir) |
| CPU switch context. More... | |
| void | _CPU_Context_Restart_self (Context_Control *the_context) |
| void | _CPU_Context_save_fp (Context_Control_fp **fp_context_ptr) |
| This routine saves the floating point context passed to it. More... | |
| void | _CPU_Context_restore_fp (Context_Control_fp **fp_context_ptr) |
| This routine restores the floating point context passed to it. More... | |
| void | _CPU_Exception_frame_print (const CPU_Exception_frame *frame) |
| This method prints the CPU exception frame. More... | |
| CPU_Counter_ticks | _CPU_Counter_read (void) |
Variables | |
| void * | _VBR |
| SCORE_EXTERN _CPU_ISR_handler_entry | _CPU_ISR_jump_table [256] |
| const unsigned char | _CPU_m68k_BFFFO_table [256] |
Detailed Description
Motorola M68K CPU Dependent Source.
This include file contains information pertaining to the Motorola m68xxx processor family.
Macro Definition Documentation
◆ _CPU_Bitfield_Find_first_bit
| #define _CPU_Bitfield_Find_first_bit | ( | _value, | |
| _output | |||
| ) |
Value:
{ \
register int dumby; \
\
__asm__ volatile ( " move.w %2,%1\n" \
" lsr.w #8,%1\n" \
" beq.s 1f\n" \
" move.b (%3,%1.w),%0\n" \
" and.l #0x000000ff,%0\n"\
" bra.s 0f\n" \
"1: moveq.l #8,%0\n" \
" add.b (%3,%2.w),%0\n" \
"0:\n" \
: "=&d" ((_output)), "=&d" ((dumby)) \
: "d" ((_value)), "ao" ((_CPU_m68k_BFFFO_table)) \
: "cc" ) ; \
}
◆ _CPU_Context_Fp_start
| #define _CPU_Context_Fp_start | ( | _base, | |
| _offset | |||
| ) |
Value:
( \
(void *) _Addresses_Add_offset( \
(_base), \
(_offset) + CPU_CONTEXT_FP_SIZE - 4 \
) \
)
RTEMS_INLINE_ROUTINE void * _Addresses_Add_offset(const void *base, uintptr_t offset)
Add offset to an address.
Definition: address.h:50
#define CPU_CONTEXT_FP_SIZE
The size of the floating point context area.
Definition: cpu.h:539
◆ _CPU_Context_Initialize_fp [1/2]
| #define _CPU_Context_Initialize_fp | ( | _fp_area | ) |
Value:
{ \
Context_Control_fp *_fp; \
_fp = *(Context_Control_fp **)_fp_area; \
_fp->_exception_bits = 0; \
_fp->_trap_enable_bits = 0; \
_fp->_sticky_bits = 0; \
_fp->_rounding_mode = 0; /* ROUND_TO_NEAREST */ \
_fp->_format = 0; /* NIL */ \
_fp->_last_operation = 0; /* NOOP */ \
_fp->_operand1.df = 0; \
_fp->_operand2.df = 0; \
}
This defines the complete set of floating point registers that must be saved during any context switc...
Definition: cpu.h:294
◆ _CPU_Context_Initialize_fp [2/2]
| #define _CPU_Context_Initialize_fp | ( | _fp_area | ) |
Value:
{ \
uint32_t *_fp_context = (uint32_t *)*(_fp_area); \
*(--(_fp_context)) = 0; \
*(_fp_area) = (void *)(_fp_context); \
}
◆ _CPU_Fatal_halt
| #define _CPU_Fatal_halt | ( | _source, | |
| _error | |||
| ) |
