1 /*-----------------------------------------------------------------*/
2 /* SDCCmem.h - header file for memory management */
3 /*-----------------------------------------------------------------*/
10 typedef struct memmap{
11 unsigned char pageno; /* page no for this variable */
12 const char *sname; /* character prefix for map */
13 char dbName ; /* debugger address space name */
14 int ptrType; /* pointer Type for this space */
15 int slbl ; /* label counter for space */
16 unsigned sloc ; /* starting location */
17 unsigned fmap : 1; /* 1 = 16bit addressing reqd */
18 unsigned paged : 1; /* this is a paged mem space */
19 unsigned direct: 1; /* 1= indirect access only */
20 unsigned bitsp: 1; /* 1 = bit addressable space */
21 unsigned codesp:1; /* 1 = code space */
22 unsigned regsp: 1; /* 1= sfr space */
23 FILE *oFile ; /* object file associated */
24 struct set *syms; /* symbols defined in this segment */
27 extern FILE *junkFile ;
29 /* memory map prefixes MOF added the DATA,CODE,XDATA,BIT */
30 #define XSTACK_NAME port->mem.xstack_name
31 #define ISTACK_NAME port->mem.istack_name
32 #define CODE_NAME port->mem.code_name
33 #define DATA_NAME port->mem.data_name
34 #define IDATA_NAME port->mem.idata_name
35 #define XDATA_NAME port->mem.xdata_name
36 #define BIT_NAME port->mem.bit_name
37 #define REG_NAME port->mem.reg_name
38 #define STATIC_NAME port->mem.static_name
40 /* forward definition for variables */
41 extern memmap *xstack; /* xternal stack data */
42 extern memmap *istack; /* internal stack */
43 extern memmap *code ; /* code segment */
44 extern memmap *data ; /* internal data upto 128 */
45 extern memmap *xdata ; /* external data */
46 extern memmap *idata ; /* internal data upto 256 */
47 extern memmap *bit ; /* bit addressable space */
48 extern memmap *statsg; /* static code segment */
49 extern memmap *sfr ; /* register space */
50 extern memmap *sfrbit; /* sfr bit space */
51 extern memmap *reg ; /* register space */
52 extern memmap *_const; /* constant segment */
53 extern memmap *generic; /* unknown */
54 extern memmap *overlay; /* the overlay segment */
55 extern memmap *eeprom; /* eepromp space */
57 extern struct set *ovrSetSets;
59 /* easy access macros */
60 #define IN_BITSPACE(map) (map && map->bitsp)
61 #define IN_STACK(x) (IS_SPEC(x) && (SPEC_OCLS(x) == xstack || SPEC_OCLS(x) == istack ))
62 #define IN_FARSPACE(map) (map && map->fmap)
63 #define IN_DIRSPACE(map) (map && map->direct)
64 #define IN_PAGEDSPACE(map) (map && map->paged )
65 #define IN_CODESPACE(map) (map && map->codesp)
66 #define PTR_TYPE(map) (map ? (map->ptrType ? map->ptrType : POINTER)\
69 /* forward decls for functions */
70 memmap *allocMap (char,char,char,char,char,char,unsigned, const char *,char,int );
72 void allocGlobal (struct symbol * );
73 void allocLocal (struct symbol * );
74 void allocParms (struct value * );
75 void deallocParms (struct value * );
76 void deallocLocal (struct symbol * );
77 int allocVariables (struct symbol * );
79 void overlay2data ( );
80 void redoStackOffsets( );