2 Definitions for what a port must provide.
3 All ports are referenced in SDCCmain.c.
11 #define TARGET_ID_MCS51 1
12 #define TARGET_ID_GBZ80 2
13 #define TARGET_ID_Z80 3
14 #define TARGET_ID_AVR 4
15 #define TARGET_ID_DS390 5
16 #define TARGET_ID_PIC 6
17 #define TARGET_ID_XA51 9
18 #define TARGET_ID_DS400 10
20 /* Macro to test the target we are compiling for.
21 Can only be used after SDCCmain has defined the port
23 #define TARGET_IS_MCS51 (port->id==TARGET_ID_MCS51)
24 #define TARGET_IS_GBZ80 (port->id==TARGET_ID_GBZ80)
25 #define TARGET_IS_Z80 (port->id==TARGET_ID_Z80)
26 #define TARGET_IS_AVR (port->id==TARGET_ID_AVR)
27 #define TARGET_IS_DS390 (port->id==TARGET_ID_DS390)
28 #define TARGET_IS_DS400 (port->id==TARGET_ID_DS400)
29 #define TARGET_IS_PIC (port->id==TARGET_ID_PIC)
30 #define TARGET_IS_XA51 (port->id==TARGET_ID_XA51)
32 #define MAX_BUILTIN_ARGS 16
33 /* definition of builtin functions */
34 typedef struct builtins
36 char *name ; /* name of builtin function */
37 char *rtype; /* return type as string : see typefromStr */
38 int nParms; /* number of parms : max 8 */
39 char *parm_types[MAX_BUILTIN_ARGS]; /* each parm type as string : see typeFromStr */
42 /* Processor specific names */
45 /** Unique id for this target */
47 /** Target name used for -m */
50 /** Target name string, used for --help */
51 const char *target_name;
53 /** Specific processor for the given target family. specified by -p */
58 /** TRUE if all types of glue functions should be inserted into
59 the file that also defines main.
60 We dont want this in cases like the z80 where the startup
61 code is provided by a seperate module.
70 /* assembler related information */
73 /** Command to run and arguments (eg as-z80) */
75 /** Alternate macro based form. */
77 /** Arguments for debug mode. */
78 const char *debug_opts;
79 /** Arguments for normal assembly mode. */
80 const char *plain_opts;
81 /* print externs as global */
83 /* assembler file extension */
85 /** If non-null will be used to execute the assembler. */
86 void (*do_assemble) (set *);
90 /* linker related info */
93 /** Command to run (eg link-z80) */
95 /** Alternate macro based form. */
97 /** If non-null will be used to execute the link. */
98 void (*do_link) (void);
99 /** Extension for object files (.rel, .obj, ...) */
106 /** Default peephole rules */
111 /** Basic type sizes */
127 /** memory regions related stuff */
130 const char *xstack_name;
131 const char *istack_name;
132 const char *code_name;
133 const char *data_name;
134 const char *idata_name;
135 const char *xdata_name;
136 const char *bit_name;
137 const char *reg_name;
138 const char *static_name;
139 const char *overlay_name;
140 const char *post_static_name;
141 const char *home_name;
142 const char *xidata_name; // initialized xdata
143 const char *xinit_name; // a code copy of xidata
144 struct memmap *default_local_map; // default location for auto vars
145 struct memmap *default_globl_map; // default location for globl vars
146 int code_ro; /* code space read-only 1=yes */
150 /* stack related information */
153 /** -1 for grows down (z80), +1 for grows up (mcs51) */
155 /** Extra overhead when calling between banks */
157 /** Extra overhead when the function is an ISR */
159 /** Standard overhead for a function call */
161 /** Re-enterant space */
163 /** 'banked' call overhead.
164 Mild overlap with bank_overhead */
171 /** One more than the smallest
172 mul/div operation the processor can do nativley
173 Eg if the processor has an 8 bit mul, nativebelow is 2 */
179 /** Prefix to add to a C function (eg "_") */
180 const char *fun_prefix;
182 /** Called once the processor target has been selected.
183 First chance to initalise and set any port specific variables.
184 'port' is set before calling this. May be NULL.
187 /** Parses one option + its arguments */
188 bool (*parseOption) (int *pargc, char **argv, int *i);
189 /** Optional list of automatically parsed options. Should be
190 implemented to at least show the help text correctly. */
192 /** Called after all the options have been parsed. */
193 void (*finaliseOptions) (void);
194 /** Called after the port has been selected but before any
195 options are parsed. */
196 void (*setDefaultOptions) (void);
197 /** Does the dirty work. */
198 void (*assignRegisters) (struct eBBlock **, int);
200 /** Returns the register name of a symbol.
201 Used so that 'regs' can be an incomplete type. */
202 const char *(*getRegName) (struct regs * reg);
204 /* list of keywords that are used by this
205 target (used by lexer) */
208 /* Write any port specific assembler output. */
209 void (*genAssemblerPreamble) (FILE * of);
210 /* invoked at end assembler file */
211 void (*genAssemblerEnd) (FILE * of);
213 /* Write the port specific IVT. If genIVT is NULL or if
214 * it returns zero, default (8051) IVT generation code
217 int (*genIVT) (FILE * of, symbol ** intTable, int intCount);
219 void (*genXINIT) (FILE * of);
221 /* parameter passing in register related functions */
222 void (*reset_regparms) (); /* reset the register count */
223 int (*reg_parm) (struct sym_link *); /* will return 1 if can be passed in register */
225 /** Process the pragma string 'sz'. Returns 0 if recognised and
226 processed, 1 otherwise. May be NULL.
228 int (*process_pragma) (const char *sz);
230 /** Mangles a support function name to reflect the calling model.
232 char *(*getMangledFunctionName) (char *szOrginial);
234 /** Returns true if the port can multiply the two types nativly
235 without using support functions.
237 bool (*hasNativeMulFor) (iCode *ic, sym_link *left, sym_link *right);
239 /** If TRUE, then tprintf and !dw will be used for some initalisers
241 bool use_dw_for_init;
243 /* condition transformations */
244 bool lt_nge; /* transform (a < b) to !(a >= b) */
245 bool gt_nle; /* transform (a > b) to !(a <= b) */
246 bool le_ngt; /* transform (a <= b) to !(a > b) */
247 bool ge_nlt; /* transform (a >= b) to !(a < b) */
248 bool ne_neq; /* transform a != b --> ! (a == b) */
249 bool eq_nne; /* transform a == b --> ! (a != b) */
251 bool arrayInitializerSuppported;
252 bool (*cseOk) (iCode *ic, iCode *pdic);
253 builtins *builtintable; /* table of builtin functions */
254 int unqualified_pointer; /* unqualified pointers type is */
255 int reset_labelKey ; /* reset Label no 1 at the start of a function */
256 int globals_allowed ; /* global & static locals not allowed ? 0 ONLY TININative*/
257 #define PORT_MAGIC 0xAC32
258 /** Used at runtime to detect if this structure has been completly filled in. */
265 #if !OPT_DISABLE_MCS51
266 extern PORT mcs51_port;
268 #if !OPT_DISABLE_GBZ80
269 extern PORT gbz80_port;
272 extern PORT z80_port;
275 extern PORT avr_port;
277 #if !OPT_DISABLE_DS390
278 extern PORT ds390_port;
281 extern PORT pic_port;
283 #if !OPT_DISABLE_TININative
284 extern PORT tininative_port;
286 #if !OPT_DISABLE_XA51
287 extern PORT xa51_port;
289 #if !OPT_DISABLE_DS400
290 extern PORT ds400_port;
293 #endif /* PORT_INCLUDE*/