User Defined Primitives

User defined primitive types. More...

Data Structures
struct	ast_udp_body
	Describes a single UDP body sequentially or combinatorially. More...
struct	ast_udp_combinatorial_entry
	Describes a single combinatorial entry in the UDP ast tree. More...
struct	ast_udp_declaration
	Describes the declaration of a user defined primitive (UDP) More...
struct	ast_udp_initial_statement
	Describes the initial statement of a sequential udp body. More...
struct	ast_udp_instance
	Describes a single instance of a UDP. More...
struct	ast_udp_instantiation
	Describes an a list of instances of a particular kind of UDP. More...
struct	ast_udp_port
	Describes a single port for a user defined primitive. More...
struct	ast_udp_sequential_entry
	describes a sequential entry in a udp body. More...

Enumerations
enum	ast_level_symbol {   LEVEL_0, LEVEL_1, LEVEL_B, LEVEL_X,   LEVEL_Q }
	Describes a single logic level symbol. More...
enum	ast_udp_body_type { UDP_BODY_SEQUENTIAL, UDP_BODY_COMBINATORIAL }
	Is the body of the UDP specified combinatorially or sequentially.
enum	ast_udp_init_val { UDP_INIT_1, UDP_INIT_0, UDP_INIT_X }
	Describes the initial value of a UDP output.
enum	ast_udp_next_state {   UDP_NEXT_STATE_X, UDP_NEXT_STATE_0, UDP_NEXT_STATE_1, UDP_NEXT_STATE_DC,   UDP_NEXT_STATE_QM }
	Describes the possible output values for a UDP element. More...
enum	ast_udp_seqential_entry_prefix { PREFIX_EDGES, PREFIX_LEVELS }
	Whether a sequential body entry starts with level or edge symbols.

Functions
ast_udp_body *	ast_new_udp_combinatoral_body (ast_list *combinatorial_entries)
	Creates and returns a new combinatorial UDP body representation.
ast_udp_combinatorial_entry *	ast_new_udp_combinatoral_entry (ast_list *input_levels, ast_udp_next_state output_symbol)
	Creates a new combinatorial entry for a UDP node.
ast_udp_declaration *	ast_new_udp_declaration (ast_node_attributes *attributes, ast_identifier identifier, ast_list *ports, ast_udp_body *body)
	Creates a new UDP declaration node. More...
ast_udp_initial_statement *	ast_new_udp_initial_statement (ast_identifier output_port, ast_number *initial_value)
	Creates a new initial statement node.
ast_udp_port *	ast_new_udp_input_port (ast_list *identifiers, ast_node_attributes *attributes)
	Creates a new UDP input port AST node. More...
ast_udp_instance *	ast_new_udp_instance (ast_identifier identifier, ast_range *range, ast_lvalue *output, ast_list *inputs)
	Creates a new instance of a UDP. More...
ast_udp_instantiation *	ast_new_udp_instantiation (ast_list *instances, ast_identifier identifier, ast_drive_strength *drive_strength, ast_delay2 *delay)
	Creates a new list of UDP instances with shared properties. More...
ast_udp_port *	ast_new_udp_port (ast_port_direction direction, ast_identifier identifier, ast_node_attributes *attributes, ast_boolean reg, ast_expression *default_value)
	Creates a new UDP port AST node. More...
ast_udp_body *	ast_new_udp_sequential_body (ast_udp_initial_statement *initial_statement, ast_list *sequential_entries)
	Creates and returns a new sequential UDP body representation.
ast_udp_sequential_entry *	ast_new_udp_sequential_entry (ast_udp_seqential_entry_prefix prefix_type, ast_list *levels_or_edges, ast_level_symbol current_state, ast_udp_next_state output)
	Creates a new sequntial body entry for a UDP node.

Detailed Description

User defined primitive types.

Needs to describe the outer declaration, port lists, body statements and instantiations

Enumeration Type Documentation

enum ast_level_symbol

Describes a single logic level symbol.

Enumerator
LEVEL_Q	Refers to '?'.

enum ast_udp_next_state

Describes the possible output values for a UDP element.

Enumerator
UDP_NEXT_STATE_DC	Don't care.
UDP_NEXT_STATE_QM	Question mark.

Function Documentation

ast_udp_declaration* ast_new_udp_declaration	(	ast_node_attributes *	attributes,
		ast_identifier	identifier,
		ast_list *	ports,
		ast_udp_body *	body
	)

Creates a new UDP declaration node.

Note

the first element of the ports list should be the output terminal.

Returns

A pointer to the new node.

A pointer to the new node.

ast_udp_port* ast_new_udp_input_port	(	ast_list *	identifiers,
		ast_node_attributes *	attributes
	)

Creates a new UDP input port AST node.

Returns

A pointer to the new port

Creates a new UDP input port AST node.

Returns

A pointer to the new port

ast_udp_instance* ast_new_udp_instance	(	ast_identifier	identifier,
		ast_range *	range,
		ast_lvalue *	output,
		ast_list *	inputs
	)

Creates a new instance of a UDP.

Returns

A pointer to the new instance.

ast_udp_instantiation* ast_new_udp_instantiation	(	ast_list *	instances,
		ast_identifier	identifier,
		ast_drive_strength *	drive_strength,
		ast_delay2 *	delay
	)

Creates a new list of UDP instances with shared properties.

Returns

A pointer to the new list.

Parameters

identifier

The UDP being instanced

ast_udp_port* ast_new_udp_port	(	ast_port_direction	direction,
		ast_identifier	identifier,
		ast_node_attributes *	attributes,
		ast_boolean	reg,
		ast_expression *	default_value
	)

Creates a new UDP port AST node.

Returns

A pointer to the new port

Parameters

identifier

The udp being instanced.