defines.h

#ifndef DEFINES_H
#define DEFINES_H

/*This file contains enumerations and defines of constants*/

/*boolean enum*/
enum boolean {FALSE, TRUE};

/*Maximum line buffer size*/
#define MAX_LINE_LEN 80

/*Maximum label buffer length*/
#define MAX_LABEL_LENGTH 31

/* maximum length of a tag is 31 */
#define MAX_TAG_LEN 31

/*Maximum filename size*/
#define MAX_FILENAME 50

/*Number of registers*/
#define NUM_OF_REGISTERS 32


/*Directive string constants, to be compared with input*/

#define MAX_DIRECTIVE_LEN 6
/* kind :
 0 - db
 1 - dh
 2 - dw
 3 - asciz
*/

enum DIRECTIVE_KIND{DB, DH, DW, ASCIZ};

#define STR_DIRECTIVE_DB "db"
#define STR_DIRECTIVE_DH "dh"
#define STR_DIRECTIVE_DW "dw"

#define STR_DIRECTIVE_ASCIZ "asciz"
#define STR_DIRECTIVE_ENTRY "entry"
#define STR_DIRECTIVE_EXTERN "extern"

/*Maximum and minimum values that can be stored in 16 bits*/
#define MAX_NUM_IMMEDIATE 32767
#define MIN_NUMBER_IMMEDIATE -32768

/*Maximum and minimum values that can be stored in data*/
/* 1 byte = 8 bits */
/*1 byte*/
#define MAX_NUMBER_DATA_DB 128
#define MIN_NUMBER_DATA_DB -127
/*2 bytes*/
#define MAX_NUMBER_DATA_DH 32767
#define MIN_NUMBER_DATA_DH -32768
/*4 bytes*/
#define MAX_NUMBER_DATA_DW 2147483647
#define MIN_NUMBER_DATA_DW -2147483648

/* these define the ascii codes 'a' and 'A' */
#define FIRST_CAPITAL_LETTER_ASCII 65
#define FIRST_LOWER_LETTER_ASCII 97

/*Extrnsions for file i/o*/
#define AS_EXTENSION ".as"
#define TXT_EXTENSION ".txt"
#define OB_EXTENSION ".ob"
#define ENT_EXTENSION ".ent"
#define EXT_EXTENSION ".ext"


/*Amoount of opcodes*/
#define OPCODES_AMOUNT 27
#define NUM_OF_COMMANDS 27

/*Opcodes*/
#define OPCODE_MOVE 1
#define OPCODE_MVHI 1
#define OPCODE_MVLO 12
#define OPCODE_ADDI 10
#define OPCODE_SUBI 11
#define OPCODE_ANDI 12
#define OPCODE_ORI 13
#define OPCODE_NORI 14
#define OPCODE_BNE 15
#define OPCODE_BEQ 16
#define OPCODE_BTL 17
#define OPCODE_BGT 18
#define OPCODE_LB 19
#define OPCODE_SB 20
#define OPCODE_LW 21
#define OPCODE_SW 22
#define OPCODE_LH 23
#define OPCODE_SH 24
#define OPCODE_JMP 30
#define OPCODE_LA 31
#define OPCODE_CALL 32
#define OPCODE_STOP 63

/*Funct*/
#define FUNCT_ADD 1
#define FUNCT_SUB 2
#define FUNCT_AND 3
#define FUNCT_OR 4
#define FUNCT_NOR 5
#define FUNCT_MOVE 1
#define FUNCT_MVHI 2
#define FUNCT_MVLO 3




#endif