int isdef; /* 1 if defined, 0 if no value yet */
int line_def; /* line in which is was defined */
int isbit; /* 1 if a bit address, 0 otherwise */
+ int issfr;
int isreg; /* 1 if a register, 0 otehrwise */
+ int global ; /* is defined as global */
+ char mode; /* Absolute, Relative, Tmplabel, eXternal */
+ short lk_index; /* symbol index for the linker */
+ int area; /* the area that this symbol is in */
struct symbol *next; };
/* a list of all the symbols that are branch targets */
struct target *next; };
struct area_struct {
+ int start;
int alloc_position;
+ int defsEmitted;
+ int size;
};
extern int current_area;
#define MEM_POS (area[current_area].alloc_position)
-#define AREA_CSEG 0
-#define AREA_DSEG 1
-#define AREA_OSEG 2
-#define AREA_ISEG 3
-#define AREA_BSEG 4
-#define AREA_XSEG 5
-#define AREA_XISEG 6
-#define AREA_XINIT 7
-#define AREA_GSINIT 8
-#define AREA_GSFINAL 9
-#define AREA_HOME 10
-#define NUM_AREAS 11
+enum {
+ AREA_CSEG=1,
+ AREA_DSEG,
+ // AREA_OSEG,
+ // AREA_ISEG,
+ AREA_BSEG,
+ AREA_XSEG,
+ AREA_XISEG,
+ AREA_XINIT,
+ AREA_GSINIT,
+ AREA_GSFINAL,
+ AREA_HOME,
+ AREA_SSEG,
+ NUM_AREAS=AREA_SSEG
+};
extern struct area_struct area[NUM_AREAS];
extern int p1, p2, p3, mem, m_len;
extern struct symbol * build_sym_list(char *thename);
-extern int assign_value(char *thename, int thevalue);
-extern int mk_bit(char *thename);
+extern int assign_value(char *thename, int thevalue, char mode);
+extern int mk_bit(char *thename, int current_area);
extern int mk_reg(char *thename);
extern void out(int *byte_list, int num);
extern int is_target(char *thename);
extern void pad_with_nop();
extern int binary2int(char *str);
-extern int is_def(char *thename);
+extern int is_bit(char *thename);
+extern int is_reg(char *thename);
+extern struct symbol * is_def(char *thename);
+extern struct symbol * is_ref(char *thename);
extern int get_value(char *thename);
-
+extern struct symbol *findSymbol (char *thename);
+extern char rel_line[2][132];
+extern char operand[2][MAX_SYMBOL];
+extern void error(char*);
+int mk_bit(char*, int);
+int mk_sfr(char*);
+int mk_global(char*);
+struct target * build_target_list(char *thename);
+struct symbol * build_sym_list(char *);
+int find_size_reg(int op1spec);
+int find_size0(int isize);
+int find_size1(int isize, int op1spec);
+int find_size2(int isize, int op1spec, int op2spec);
+int yyerror(char *s);
+int imm_data4_signed(int value);
+int imm_data4_unsigned(int value);
+int imm_data5_unsigned(int value);
+int imm_data8(int value);
+int imm_data16(int value);
+int reg(int reg_spec);
+int reg_indirect(int reg_spec);
+int lsb(int value);
+int msb(int value);
+int direct_addr(int value);
+int bit_addr(int value);
+int rel16(int pos, int dest);
+int rel8(int pos, int dest);
+char *areaToString (int area);
+
+FILE *frel, *fmem, *list_fp, *sym_fp;
+
+extern void relout();