ArchC Parser
[ArchC simulator generator]

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ac_stg_list *	stage_list = NULL *pstage *stage_list_tail = NULL
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ac_sto_list *	storage_list
ac_sto_list *	pstorage
ac_sto_list *	storage_list_tail
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ac_cache_parms *	parms_list
ac_cache_parms *	pparms
ac_cache_parms *	parms_list_tail
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int	HaveFormattedRegs = 0 HaveMultiCycleIns = 0 HaveMemHier=0 HaveCycleRange=0
Defines
#define	YYDEBUG   1
#define	YYERROR_VERBOSE
#define	ADD_DEBUG   1
Typedefs
typedef enum _commalist	commalist
typedef enum _descr	description
typedef enum _sto_unit	sto_unit
Enumerations
enum	_commalist {   INSTR_L, STAGE_L, REG_L, PIPE_L,   REGBANK_L, CACHE_L, MEM_L }
enum	_descr { ISA_D, ARCH_D }
enum	_sto_unit { BYTE = 1, KBYTE = 1024, MBYTE = 1048576, GBYTE = 1073741824 }
Functions
void	yyerror (char *s)
void	print_comment (FILE *output, char *description)
int	parse_format (char **fieldstr, int sum_size, int size_limit, ac_dec_field **field_list_head, ac_dec_field **field_list_tail)
void	add_format (ac_dec_format **head, ac_dec_format **tail, char *name, char *str)
void	add_instr (char *name)
void	add_storage (char *name, unsigned size, ac_sto_types type)
Variables
FILE *	output = NULL
	The output file being written.
char *	current_type
	The name of the type/format associated to the object currently being parsed.
char *	current_instr
	The name of the instruction currently being parsed.
char *	project_name
	Name of the ArchC project being processed.
char *	isa_filename
	Name for the isa class file.
char *	aux
ac_dec_format *	format_ins_list
ac_dec_format *	format_ins_list_tail
	Format List for instructions.
ac_dec_format *	format_reg_list
	Format List for registers.
ac_dec_format *	format_reg_list_tail
ac_dec_instr *	instr_list
	Instruction List.
ac_dec_instr *	instr_list_tail
ac_dec_instr *	pinstr
ac_dec_field *	field_list = NULL
	Field List.
ac_dec_list *	pdec_list
	Decodification List.
ac_pipe_list *	pipe_list = NULL *ppipe *current_pipe=NULL *pipe_list_tail = NULL
commalist	list_type
	Indicates what type of list of declarations is being parsed.
description	descrp
	Indicates what type of description is being parsed.
sto_unit	current_unit
	Indicates what storage unit is being used.
ac_sto_types	cache_type
	Indicates the type of cache being declared.
ac_sto_list *	fetch_device
	Indicates the device used for fetching instructions.
int	instr_num
	Number of Instructions.
int	declist_num
	Number of Decodification lists.
int	format_num
	Number of Formats.
int	const_count
	Number of Constants.
int	stage_num
	Number of Stages.
int	pipe_num
	Number of Pipelines.
int	wordsize
	Size of the word type in bits for the current project.
int	reg_width
	Bit width of registers in a regbank.
int	fetchsize
	Size of the fetch word type in bits for the current project.
int	line_num
	Input file line counter.
int	ac_tgt_endian
	Indicates the endianess of the host machine.
int	first_format = 1 largest_format_size=0

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Detailed Description

The ArchC parser is generated using GNU tools Bison and Flex. The ArchC grammar for the parser and the regular expressions for the lexical analyser are stored into archc.bison and archc.lex files respectively

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Typedef Documentation

typedef enum _commalist commalist

type used to identify the kind of list being declared Definition at line 178 of file archc.parser.c.

typedef enum _descr description

type used to identify which description is being parsed Definition at line 183 of file archc.parser.c. Referenced by print_comment().

typedef enum _sto_unit sto_unit

type used to identify which unit is being used for storage devices Definition at line 188 of file archc.parser.c.

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Enumeration Type Documentation

enum _commalist

type used to identify the kind of list being declared Definition at line 176 of file archc.parser.c.

enum _descr

type used to identify which description is being parsed Definition at line 181 of file archc.parser.c.

enum _sto_unit

type used to identify which unit is being used for storage devices Definition at line 186 of file archc.parser.c.

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Function Documentation

void add_format (  ac_dec_format **  head, ac_dec_format **  tail, char *  name, char *  str )

Add format to instr/reg format lists. Parameters: head  Head of the format list. tail  Tail of the format list. name  The name of the instruction to be added. str  String containg field declarations Definition at line 429 of file archc.parser.c. References ac_dec_field, ac_dec_format, descrp, field_list, _ac_dec_format::fields, format_num, _ac_dec_format::name, _ac_dec_field::next, _ac_dec_format::next, parse_format(), and _ac_dec_format::size.

Here is the call graph for this function:

void add_instr (  char *  name  )

Add instruction to instruction list. Parameters: name  The name of the instruction to be added. Definition at line 468 of file archc.parser.c. References ac_dec_instr, AC_ERROR, current_type, _ac_dec_instr::cycles, _ac_dec_instr::dec_list, _ac_dec_instr::format, _ac_dec_instr::id, instr_list, instr_num, line_num, _ac_dec_instr::max_latency, _ac_dec_instr::min_latency, _ac_dec_instr::mnemonic, _ac_dec_instr::name, and _ac_dec_instr::next.

void add_storage (  char *  name, unsigned  size, ac_sto_types  type )

Add a new device to the storage list. Parameters: name  The name of the device to be added. size  The size of the device to be added. type  The type of the device to be added. Definition at line 568 of file archc.parser.c. References AC_ERROR, ac_sto_list, current_type, current_unit, fetch_device, _ac_sto_list::format, _ac_sto_list::higher, _ac_sto_list::level, line_num, _ac_sto_list::name, _ac_sto_list::next, _ac_sto_list::parms, parms_list, parms_list_tail, pstorage, reg_width, _ac_sto_list::size, storage_list, storage_list_tail, _ac_sto_list::type, and _ac_sto_list::width.

int parse_format (  char **  fieldstr, int  sum_size, int  size_limit, ac_dec_field **  field_list_head, ac_dec_field **  field_list_tail )

Parse format string generating field list. Parameters: fieldstr  Reference to string containing field declarations. sum_size  Sum of bits of previous fields. size_limit  Limit of size for this field group field_list_head  Head of the field list. field_list_tail  Tail of the field list. Definition at line 311 of file archc.parser.c. References ac_dec_field, AC_ERROR, const_count, _ac_dec_field::first_bit, _ac_dec_field::id, _ac_dec_field::name, _ac_stg_list::next, _ac_dec_field::next, _ac_dec_field::sign, _ac_dec_field::size, and _ac_dec_field::val. Referenced by add_format().

void print_comment (  FILE *  output, char *  description )

Writes a standard comment at the begining of each file generated by ArchC. OBS: Description must have 50 characteres at most!! Parameters: output  The output file pointer. description  A brief description of the file being emited. Definition at line 284 of file archc.parser.c. References description, and output.

void yyerror (  char *  s  )

Error reporting function Parameters: s  A string to be used as error message. Definition at line 270 of file archc.parser.c. References line_num.

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Variable Documentation

int HaveFormattedRegs = 0 HaveMultiCycleIns = 0 HaveMemHier=0 HaveCycleRange=0

Boolean flag passed to the SystemC generator Definition at line 238 of file archc.parser.c.

ac_cache_parms* parms_list

Cache parameter list management. Definition at line 233 of file archc.parser.c. Referenced by add_storage().

ac_cache_parms * parms_list_tail

Cache parameter list management. Definition at line 233 of file archc.parser.c. Referenced by add_storage().

ac_pipe_list* pipe_list = NULL *ppipe *current_pipe=NULL *pipe_list_tail = NULL

Pipe List management variables. Definition at line 213 of file archc.parser.c. Referenced by add_pipe().

ac_cache_parms * pparms

Cache parameter list management. Definition at line 233 of file archc.parser.c.

ac_sto_list * pstorage

Storage List management. Definition at line 228 of file archc.parser.c. Referenced by add_storage().

ac_stg_list* stage_list = NULL *pstage *stage_list_tail = NULL

Stage List management variables. Definition at line 223 of file archc.parser.c.

ac_sto_list* storage_list

Storage List management. Definition at line 228 of file archc.parser.c. Referenced by add_storage().

ac_sto_list * storage_list_tail

Storage List management. Definition at line 228 of file archc.parser.c. Referenced by add_storage().

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