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Add_Aligned_Word_Interlocked
The _ADAWI function adds its source operand to the destination.
This operation is interlocked against similar operations by other
processors or devices in the system.
Syntax:
typedef enum {_adawi_sum_neg=-1, _adawi_sum_zero,
_adawi_sum_pos} _ADAWI_STATUS;
_ADAWI_STATUS _ADAWI(short __src, short *__dest);
__ALLOCA
Allocates n bytes from the stack and returns a pointer to the
allocated memory.
Syntax:
void *__ALLOCA (unsigned int n);
Branch_on_Bit_Clear-Clear_Interlocked
The _BBCCI function performs the following functions in interlocked
fashion:
o Returns the complement of the bit specified by the two
arguments
o Clears the bit specified by the two arguments
Syntax:
typedef enum {_bbcci_oldval_1, _bbcci_oldval_0} _BBCCI_STATUS;
_BBCCI_STATUS _BBCCI(int __position, void *__address);
Branch_on_Bit_Set-Set_Interlocked
The _BBSSI function performs the following functions in interlocked
fashion:
o Returns the status of the bit specified by the two arguments
o Sets the bit specified by the two arguments
Syntax:
typedef enum {_bbssi_oldval_0, _bbcci_oldval_1} _BBSSI_STATUS;
_BBSSI_STATUS _BBSSI(int __position, void *__address);
Find_First_Clear_Bit
The _FFC function finds the position of the first clear bit in a
field. The bits are tested for clear status starting at bit 0 and
extending to the highest bit in the field.
Syntax:
typedef enum {_ff_bit_not_found, _ff_bit_found} _FF_STATUS;
_FF_STATUS _FFC(int __start, char __size, const void * __base,
int *__position);
Find_First_Set_Bit
The _FFS function finds the position of the first set bit in a
field. The bits are tested for set status starting at bit 0 and
extending to the highest bit in the field.
Syntax:
typedef enum {_ff_bit_not_found, _ff_bit_found} _FF_STATUS;
_FF_STATUS _FFS(int __start, char __size, const void *__base,
int *__position);
Halt
The _HALT function halts the processor when executed by a process
running in kernel mode. This is a privileged function.
Syntax:
void _HALT(void);
Insert_Entry_into_Queue_at_Head_Interlocked
The _INSQHI function inserts an entry into the front of a queue in
an indivisible manner. This operation is interlocked against
similar operations by other processors or devices in the system.
Syntax:
typedef enum {_insqi_inserted_many, _insqi_not_inserted,
_insqi_inserted_only} _INSQI_STATUS;
_INSQI_STATUS _INSQHI(void *__new_entry, void *__head);
Insert_Entry_into_Queue_at_Tail_Interlocked
The _INSQTI function inserts an entry at the end of a queue in an
indivisible manner. This operation is interlocked against similar
operations by other processors or devices in the system.
Syntax:
typedef enum {_insqi_inserted_many, _insqi_not_inserted,
_insqi_inserted_only} _INSQI_STATUS;
_INSQI_STATUS _INSQTI(void *__new_entry, void *__head);
Insert_Entry_in_Queue
The _INSQUE function inserts a new entry into a queue following an
existing entry.
Syntax:
typedef enum {_insque_inserted_only, _insque_inserted_many}
_INSQUE_STATUS;
_INSQUE_STATUS _INSQUE(void *__new_entry, void
*__predecessor);
Locate_Character
The _LOCC function locates the first character in a string matching
the target character.
Syntax:
unsigned short _LOCC(char __target, unsigned short __length,
const char *__string, ...);
where the optional argument (...) is char **position.
Move_from_Processor_Register
The _MFPR function returns the contents of a processor register.
This is a privileged function.
Syntax:
void _MFPR(int register_num, int *destination);
void _MFPR(int register_num, unsigned int *destination);
Move_Character_3_Operand
The _MOVC3 function copies a block of memory. It is the preferred
way to copy a block of memory to a new location.
Syntax:
void _MOVC3(unsigned short __length, const char *__src, char
*__dest, ...);
where the ... is one or two optional arguments:
o char **endscr
o char **enddest
Move_Character_5_Operand
The _MOVC5 function allows the source string specified by the
pointer and length pair to be moved to the destination string
specified by the other pointer and length pair. If the source
string is smaller than the destination string, the destination
string is padded with the specified character.
Syntax:
void _MOVC5(unsigned short __srclen, const char *__src, char
__fill, unsigned short __destlen, char *__dest,
...);
where the ... is one to three optional arguments:
o unsigned short *unmoved_src
o char ** endscr
o char **enddest
Move_from_Processor_Status_Longword
The _MOVPSL function stores the value of the Processor Status
Longword (PSL).
Syntax:
void _MOVPSL(void *__psl);
Move_to_Processor_Register
The _MTPR function loads a value into one of the special processor
registers. It is a privileged function.
Syntax:
int _MTPR(int src, int register_num);
Probe_Read_Accessibility
The _PROBER function checks to see if you can read the first and
last byte of the given address and length pair.
Syntax:
typedef enum {_probe_not_accessible, _probe_accessible}
_PROBE_STATUS;
_PROBE_STATUS _PROBER(char __mode, unsigned short __length,
const void *__address);
Probe_Write_Accessibility
The _PROBEW function checks the write accessibility of the first
and last byte of the given address and length pair.
Syntax:
typedef enum {_probe_not_accessible, _probe_accessible}
_PROBE_STATUS;
_PROBE_STATUS _PROBEW(char __mode, unsigned short __length,
const void *__address);
Read_General-Purpose_Register
The _READ_GPR function returns the value of a general-purpose
register.
Syntax:
int _READ_GPR(int register_number);
Remove_Entry_from_Queue_at_Head_Interlocked
The _REMQHI function removes the first entry from the queue in an
indivisible manner. This operation is interlocked against similar
operations by other processors or devices in the system.
Syntax:
typedef enum {_remqi_removed_more, _remqi_not_removed,
_remqi_removed_empty, _remqi_empty}
_REMQI_STATUS;
_REMQI_STATUS _REMQHI(void *__head), void *__removed_entry);
Remove_Entry_from_Queue_at_Tail_Interlocked
The _REMQTI function removes the last entry from the queue in an
indivisible manner. This operation is interlocked against similar
operations by other processors or devices in the system.
Syntax:
typedef enum {_remqi_removed_more, _remqi_not_removed,
_remqi_removed_empty, _remqi_empty}
_REMQI_STATUS;
_REMQI_STATUS _REMQTI(void *__head, void *__removed_entry);
Remove_Entry_from_Queue
The _REMQUE function removes an entry from a queue.
Syntax:
typedef enum {_remque_removed_more, _remque_removed_empty,
_remque_empty} _REMQUE_STATUS;
_REMQUE_STATUS _REMQUE(void *__entry, void *__removed_entry);
Scan_Characters
The _SCANC function locates the first character in a string with
the desired attributes. The attributes are specified through a
table and a mask.
Syntax:
unsigned short _SCANC(unsigned short __length, const char
*__string, const char *__table, char
__mask, ...);
where the optional argument (...) is char **match.
Skip_Character
The _SKPC function locates the first character in a string that
does not match the target character.
Syntax:
unsigned short _SKPC(char __target, unsigned short __length,
const char *__string, ... );
where the optional argument (...) is char **position.
Span_Characters
The _SPANC function locates the first character in a string without
certain attributes. The attributes are specified through a table
and a mask.
Syntax:
unsigned short _SPANC(unsigned short __length, const char
*__string, const char *__table, char
__mask, ...);
where the optional argument (...) is char **mask.
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