Allow optimizer to replace params/locals in far space with registers for DS390 port

[fw/sdcc] / src / port.h

diff --git a/src/port.h b/src/port.h
index b8639fb1fe3298abc80df1c4917830f1aa4c3d47..f59c124a14b8666e31ad7d46509bc2307e023534 100644 (file)
--- a/src/port.h
+++ b/src/port.h
@@ -20,6 +20,9 @@ typedef struct {
            code is provided by a seperate module.
        */
        bool glue_up_main;
+       /* OR of MODEL_* */
+       int supported_models;
+       int default_model;
     } general;
 
     /* assembler related information */
@@ -30,12 +33,18 @@ typedef struct {
        const char *debug_opts;
        /** Arguments for normal assembly mode.  PENDING: ignored */
        const char *plain_opts;
+       /* print externs as global */
+       int externGlobal;
     } assembler;
 
     /* linker related info */
     struct {
        /** Command to run (eg link-z80) */
        const char **cmd;
+       /** If non-null will be used to execute the link. */
+       void (*do_link)(void);
+       /** Extention for object files (.rel, .obj, ...) */
+       const char *rel_ext;
     } linker;
 
     struct {
@@ -57,7 +66,7 @@ typedef struct {
        int max_base_size;
     } s;
 
-    /** Names for all the memory regions */
+    /** memory regions related stuff */
     struct {
        const char *xstack_name;
        const char *istack_name;
@@ -69,6 +78,11 @@ typedef struct {
        const char *reg_name;
        const char *static_name;
        const char *overlay_name;
+       const char *post_static_name;
+       const char *home_name;
+       struct memmap *default_local_map ; /* default location for auto vars */
+       struct memmap *default_globl_map ; /* default location for globl vars*/
+       int         code_ro;               /* code space read-only 1=yes */
     } mem;
     
     /* stack related information */
@@ -83,15 +97,25 @@ typedef struct {
        int call_overhead;
        /** Re-enterant space */
        int reent_overhead;
-       
+       /** 'banked' call overhead.
+           Mild overlap with bank_overhead */
+       int banked_overhead;
     } stack;
+
     struct {
        /** One more than the smallest 
            mul/div operation the processor can do nativley 
            Eg if the processor has an 8 bit mul, nativebelow is 2 */
        int native_below;
+       /** The mul/div/mod functions will be made to use regparams
+           for sizeof(param) < log2(force_reg)
+           i.e. Use 2 for WORD and BYTE, 0 for none. */
+       int force_reg_param_below;
     } muldiv;
 
+    /** Prefix to add to a C function (eg "_") */
+    const char *fun_prefix;
+
     /** Called once the processor target has been selected.
        First chance to initalise and set any port specific varibles.
        'port' is set before calling this.  May be NULL.
@@ -123,8 +147,26 @@ typedef struct {
      * will be used. 
      */
     int (*genIVT)(FILE *of, symbol **intTable, int intCount); 
+
+
+    /* parameter passing in register related functions */
+    void (*reset_regparms)();          /* reset the register count */
+    int  (*reg_parm)(struct link *);   /* will return 1 if can be passed in register */
+
+    /** Process the pragma string 'sz'.  Returns 0 if recognised and
+       processed, 1 otherwise.  May be NULL.
+    */
+    int (*process_pragma)(const char *sz);
+
+    /** If TRUE, then tprintf and !dw will be used for some initalisers
+     */
+    bool use_dw_for_init;
 } PORT;
 
 extern PORT *port;
 
+/* Ugly test to see if we are current compiling in DS390 mode. */
+extern PORT ds390_port;
+#define IS_DS390_PORT (port == &ds390_port)
+
 #endif