2 Definitions for what a port must provide.
3 All ports are referenced in SDCCmain.c.
10 #include "SDCCpeeph.h"
11 #include "mcs51/peep.h"
13 #define TARGET_ID_MCS51 1
14 #define TARGET_ID_GBZ80 2
15 #define TARGET_ID_Z80 3
16 #define TARGET_ID_AVR 4
17 #define TARGET_ID_DS390 5
18 #define TARGET_ID_PIC 6
19 #define TARGET_ID_PIC16 7
20 #define TARGET_ID_XA51 9
21 #define TARGET_ID_DS400 10
22 #define TARGET_ID_HC08 11
24 /* Macro to test the target we are compiling for.
25 Can only be used after SDCCmain has defined the port
27 #define TARGET_IS_MCS51 (port->id==TARGET_ID_MCS51)
28 #define TARGET_IS_GBZ80 (port->id==TARGET_ID_GBZ80)
29 #define TARGET_IS_Z80 (port->id==TARGET_ID_Z80)
30 #define TARGET_Z80_LIKE ((port->id==TARGET_ID_Z80) || (port->id==TARGET_ID_GBZ80))
31 #define TARGET_IS_AVR (port->id==TARGET_ID_AVR)
32 #define TARGET_IS_DS390 (port->id==TARGET_ID_DS390)
33 #define TARGET_IS_DS400 (port->id==TARGET_ID_DS400)
34 #define TARGET_IS_PIC (port->id==TARGET_ID_PIC)
35 #define TARGET_IS_PIC16 (port->id==TARGET_ID_PIC16)
36 #define TARGET_IS_XA51 (port->id==TARGET_ID_XA51)
37 #define TARGET_IS_HC08 (port->id==TARGET_ID_HC08)
39 #define MAX_BUILTIN_ARGS 16
40 /* definition of builtin functions */
41 typedef struct builtins
43 char *name; /* name of builtin function */
44 char *rtype; /* return type as string : see typefromStr */
45 int nParms; /* number of parms : max 8 */
46 char *parm_types[MAX_BUILTIN_ARGS]; /* each parm type as string : see typeFromStr */
51 /* pragma structure */
57 int (*func)(int id, const char *name, const char *cp);
60 /* defined in SDCClex.lex */
61 int process_pragma_tbl(const struct pragma_s *pragma_tbl, const char *s);
63 /* Processor specific names */
66 /** Unique id for this target */
68 /** Target name used for -m */
71 /** Target name string, used for --help */
72 const char *target_name;
74 /** Specific processor for the given target family. specified by -p */
79 /** Pointer to glue function */
80 void (*do_glue)(void);
81 /** TRUE if all types of glue functions should be inserted into
82 the file that also defines main.
83 We dont want this in cases like the z80 where the startup
84 code is provided by a seperate module.
93 /* assembler related information */
96 /** Command to run and arguments (eg as-z80) */
98 /** Alternate macro based form. */
100 /** Arguments for debug mode. */
101 const char *debug_opts;
102 /** Arguments for normal assembly mode. */
103 const char *plain_opts;
104 /* print externs as global */
106 /* assembler file extension */
107 const char *file_ext;
108 /** If non-null will be used to execute the assembler. */
109 void (*do_assemble) (set *);
113 /* linker related info */
116 /** Command to run (eg link-z80) */
118 /** Alternate macro based form. */
120 /** If non-null will be used to execute the link. */
121 void (*do_link) (void);
122 /** Extension for object files (.rel, .obj, ...) */
124 /** 1 if port needs the .lnk file, 0 otherwise */
125 const int needLinkerScript;
131 /** Default peephole rules */
133 int (*getSize)(lineNode *line);
134 bitVect * (*getRegsRead)(lineNode *line);
135 bitVect * (*getRegsWritten)(lineNode *line);
136 bool (*deadMove) (const char *reg, lineNode *currPl, lineNode *head);
140 /** Basic type sizes */
145 unsigned int int_size;
149 int gptr_size; //generic
156 /** tags for far, near, xstack, code generic pointers */
166 /** memory regions related stuff */
169 const char *xstack_name;
170 const char *istack_name;
171 const char *code_name;
172 const char *data_name;
173 const char *idata_name;
174 const char *pdata_name;
175 const char *xdata_name;
176 const char *bit_name;
177 const char *reg_name;
178 const char *static_name;
179 const char *overlay_name;
180 const char *post_static_name;
181 const char *home_name;
182 const char *xidata_name; // initialized xdata
183 const char *xinit_name; // a code copy of xidata
184 const char *const_name; // const data (code or not)
185 const char *cabs_name; // const absolute data (code or not)
186 const char *xabs_name; // absolute xdata/pdata
187 const char *iabs_name; // absolute idata/data
188 struct memmap *default_local_map; // default location for auto vars
189 struct memmap *default_globl_map; // default location for globl vars
190 int code_ro; /* code space read-only 1=yes */
196 void (*genExtraAreaDeclaration)(FILE *, bool);
197 void (*genExtraAreaLinkOptions)(FILE *);
201 /* stack related information */
204 /** -1 for grows down (z80), +1 for grows up (mcs51) */
206 /** Extra overhead when calling between banks */
208 /** Extra overhead when the function is an ISR */
210 /** Standard overhead for a function call */
212 /** Re-enterant space */
214 /** 'banked' call overhead.
215 Mild overlap with bank_overhead */
222 /** One more than the smallest
223 mul/div operation the processor can do natively
224 Eg if the processor has an 8 bit mul, native below is 2 */
232 void (*emitDebuggerSymbol) (char *);
235 int (*regNum) (struct regs *);
252 int sizeofMatchJump[3];
253 int sizeofRangeCompare[3];
259 /** Prefix to add to a C function (eg "_") */
260 const char *fun_prefix;
262 /** Called once the processor target has been selected.
263 First chance to initalise and set any port specific variables.
264 'port' is set before calling this. May be NULL.
267 /** Parses one option + its arguments */
268 bool (*parseOption) (int *pargc, char **argv, int *i);
269 /** Optional list of automatically parsed options. Should be
270 implemented to at least show the help text correctly. */
272 /** Initialise port spectific paths */
273 void (*initPaths)(void);
274 /** Called after all the options have been parsed. */
275 void (*finaliseOptions) (void);
276 /** Called after the port has been selected but before any
277 options are parsed. */
278 void (*setDefaultOptions) (void);
279 /** Does the dirty work. */
280 void (*assignRegisters) (struct ebbIndex *);
282 /** Returns the register name of a symbol.
283 Used so that 'regs' can be an incomplete type. */
284 const char *(*getRegName) (struct regs * reg);
286 /* list of keywords that are used by this
287 target (used by lexer) */
290 /* Write any port specific assembler output. */
291 void (*genAssemblerPreamble) (FILE * of);
292 /* invoked at end assembler file */
293 void (*genAssemblerEnd) (FILE * of);
295 /* Write the port specific IVT. If genIVT is NULL or if
296 * it returns zero, default (8051) IVT generation code
299 int (*genIVT) (FILE * of, symbol ** intTable, int intCount);
301 void (*genXINIT) (FILE * of);
303 /* Write port specific startup code */
304 void (*genInitStartup) (FILE * of);
306 /* parameter passing in register related functions */
307 void (*reset_regparms) (void); /* reset the register count */
308 int (*reg_parm) (struct sym_link *, bool reentrant); /* will return 1 if can be passed in register */
310 /** Process the pragma string 'sz'. Returns 0 if recognised and
311 processed, 1 otherwise. May be NULL.
313 int (*process_pragma) (const char *sz);
315 /** Mangles a support function name to reflect the calling model.
317 char *(*getMangledFunctionName) (char *szOrginial);
319 /** Returns true if the port can multiply the two types nativly
320 without using support functions.
322 bool (*hasNativeMulFor) (iCode *ic, sym_link *left, sym_link *right);
324 /** Returns true if the port has implemented certain bit
325 manipulation iCodes (RRC, RLC, SWAP, GETHBIT, GETABIT, GETBYTE, GETWORD)
327 bool (*hasExtBitOp) (int op, int size);
329 /** Returns the relative expense of accessing a particular output
330 storage class. Larger values indicate higher expense.
332 int (*oclsExpense) (struct memmap *oclass);
334 /** If TRUE, then tprintf and !dw will be used for some initalisers
336 bool use_dw_for_init;
338 /** TRUE for targets with little endian byte ordering, FALSE for
339 targets with big endian byte ordering.
343 /* condition transformations */
344 bool lt_nge; /* transform (a < b) to !(a >= b) */
345 bool gt_nle; /* transform (a > b) to !(a <= b) */
346 bool le_ngt; /* transform (a <= b) to !(a > b) */
347 bool ge_nlt; /* transform (a >= b) to !(a < b) */
348 bool ne_neq; /* transform a != b --> ! (a == b) */
349 bool eq_nne; /* transform a == b --> ! (a != b) */
351 bool arrayInitializerSuppported;
352 bool (*cseOk) (iCode *ic, iCode *pdic);
353 builtins *builtintable; /* table of builtin functions */
354 int unqualified_pointer; /* unqualified pointers type is */
355 int reset_labelKey ; /* reset Label no 1 at the start of a function */
356 int globals_allowed ; /* global & static locals not allowed ? 0 ONLY TININative*/
357 #define PORT_MAGIC 0xAC32
358 /** Used at runtime to detect if this structure has been completly filled in. */
365 #if !OPT_DISABLE_MCS51
366 extern PORT mcs51_port;
368 #if !OPT_DISABLE_GBZ80
369 extern PORT gbz80_port;
372 extern PORT z80_port;
375 extern PORT avr_port;
377 #if !OPT_DISABLE_DS390
378 extern PORT ds390_port;
381 extern PORT pic_port;
383 #if !OPT_DISABLE_PIC16
384 extern PORT pic16_port;
386 #if !OPT_DISABLE_TININative
387 extern PORT tininative_port;
389 #if !OPT_DISABLE_XA51
390 extern PORT xa51_port;
392 #if !OPT_DISABLE_DS400
393 extern PORT ds400_port;
395 #if !OPT_DISABLE_HC08
396 extern PORT hc08_port;
399 #endif /* PORT_INCLUDE*/