X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fport.h;h=57aebe82f72072eeff1e8f9465f7d8a586c29f77;hb=5f40ac914972df25fd3b4d9b582330933bceb964;hp=30c1e9e5c6a9a3a9958757b14c15c05107ca84ad;hpb=01ad33a1bb9aec417dab3e45e57cac53b38fdb66;p=fw%2Fsdcc diff --git a/src/port.h b/src/port.h index 30c1e9e5..57aebe82 100644 --- a/src/port.h +++ b/src/port.h @@ -6,36 +6,64 @@ #define PORT_INCLUDE /* Processor specific names */ -typedef struct { - /** Target name used for -m */ +typedef struct + { +/** Target name used for -m */ const char *target; - /** Target name string, used for --help */ +/** Target name string, used for --help */ const char *target_name; + struct + { + /** TRUE if all types of glue functions should be inseted into + the file that also defines main. + We dont want this in cases like the z80 where the startup + code is provided by a seperate module. + */ + bool glue_up_main; + /* OR of MODEL_* */ + int supported_models; + int default_model; + } + general; + /* assembler related information */ - struct { - /** Command to run and arguments (eg as-z80) */ + struct + { +/** Command to run and arguments (eg as-z80) */ const char **cmd; - /** Arguments for debug mode. PENDING: ignored */ +/** Arguments for debug mode. PENDING: ignored */ const char *debug_opts; - /** Arguments for normal assembly mode. PENDING: ignored */ +/** Arguments for normal assembly mode. PENDING: ignored */ const char *plain_opts; - } assembler; + /* print externs as global */ + int externGlobal; + } + assembler; /* linker related info */ - struct { - /** Command to run (eg link-z80) */ + struct + { +/** Command to run (eg link-z80) */ const char **cmd; - } linker; +/** 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 { - /** Default peephole rules */ + struct + { +/** Default peephole rules */ char *default_rules; - } peep; + } + peep; - /** Basic type sizes */ - struct { +/** Basic type sizes */ + struct + { int char_size; int short_size; int int_size; @@ -46,10 +74,12 @@ typedef struct { int bit_size; int float_size; int max_base_size; - } s; + } + s; - /** Names for all the memory regions */ - struct { +/** memory regions related stuff */ + struct + { const char *xstack_name; const char *istack_name; const char *code_name; @@ -60,58 +90,144 @@ typedef struct { const char *reg_name; const char *static_name; const char *overlay_name; - } mem; - + 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 */ - struct { - /** -1 for grows down (z80), +1 for grows up (mcs51) */ + struct + { +/** -1 for grows down (z80), +1 for grows up (mcs51) */ int direction; - /** Extra overhead when calling between banks */ +/** Extra overhead when calling between banks */ int bank_overhead; - /** Extra overhead when the function is an ISR */ +/** Extra overhead when the function is an ISR */ int isr_overhead; - /** Standard overhead for a function call */ +/** Standard overhead for a function call */ int call_overhead; - /** Re-enterant space */ +/** Re-enterant space */ int reent_overhead; - - } stack; - struct { + /** '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 nativebelow; - } muldiv; + 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; - /** Parses one option + its arguments */ - bool (*parseOption)(int *pargc, char **argv, int *i); - /** Called after all the options have been parsed. */ - void (*finaliseOptions)(void); +/** 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. + */ + void (*init) (void); +/** Parses one option + its arguments */ + bool (*parseOption) (int *pargc, char **argv, int *i); +/** Called after all the options have been parsed. */ + void (*finaliseOptions) (void); /** Called after the port has been selected but before any options are parsed. */ - void (*setDefaultOptions)(void); - /** Does the dirty work. */ - void (*assignRegisters)(eBBlock **, int); - + void (*setDefaultOptions) (void); +/** Does the dirty work. */ + void (*assignRegisters) (struct eBBlock **, int); + /** Returns the register name of a symbol. Used so that 'regs' can be an incomplete type. */ - const char *(*getRegName)(struct regs *reg); + const char *(*getRegName) (struct regs * reg); /* list of keywords that are used by this target (used by lexer) */ - char **keywords; - + char **keywords; + /* Write any port specific assembler output. */ - void (*genAssemblerPreamble)(FILE *of); - + void (*genAssemblerPreamble) (FILE * of); + /* Write the port specific IVT. If genIVT is NULL or if * it returns zero, default (8051) IVT generation code * will be used. */ - int (*genIVT)(FILE *of, symbol **intTable, int intCount); -} PORT; + 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 sym_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; + + /* condition transformations */ + bool lt_nge; /* transform (a < b) to !(a >= b) */ + bool gt_nle; /* transform (a > b) to !(a <= b) */ + bool le_ngt; /* transform (a <= b) to !(a > b) */ + bool ge_nlt; /* transform (a >= b) to !(a < b) */ + bool ne_neq; /* transform a != b --> ! (a == b) */ + bool eq_nne; /* transform a == b --> ! (a != b) */ + +#define PORT_MAGIC 0xAC32 +/** Used at runtime to detect if this structure has been completly filled in. */ + int magic; + } +PORT; extern PORT *port; +#if !OPT_DISABLE_MCS51 +extern PORT mcs51_port; +#endif +#if !OPT_DISABLE_GBZ80 +extern PORT gbz80_port; +#endif +#if !OPT_DISABLE_Z80 +extern PORT z80_port; +#endif +#if !OPT_DISABLE_AVR +extern PORT avr_port; +#endif +#if !OPT_DISABLE_DS390 +extern PORT ds390_port; +#else +PORT ds390_port; +#endif +#if !OPT_DISABLE_PIC +extern PORT pic14_port; +#endif +#if !OPT_DISABLE_I186 +extern PORT i186_port; +#endif +#if !OPT_DISABLE_TLCS900H +extern PORT tlcs900h_port; #endif +/* Test to see if we are current compiling in DS390 mode. */ +#define IS_MCS51_PORT (port == &mcs51_port) +#define IS_GBZ80_PORT (port == &gbz80_port) +#define IS_Z80_PORT (port == &z80_port) +#define IS_AVR_PORT (port == &avr_port) +#define IS_DS390_PORT (port == &ds390_port) +#define IS_PIC_PORT (port == &pic14_port) + +#endif