X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fruntime%2Fruntime.h;h=69560b8e2ada8f09c8c51d98dea22556abc17cef;hb=78fa16bf55be44cc16845be84d98023e83fb14bc;hp=105dbbbdfc9224772e41cd8d7c26c666b2fae32e;hpb=43b4fa80d2db2af986feafc08797917ab591806c;p=sbcl.git diff --git a/src/runtime/runtime.h b/src/runtime/runtime.h index 105dbbb..69560b8 100644 --- a/src/runtime/runtime.h +++ b/src/runtime/runtime.h @@ -37,33 +37,32 @@ * problem.. */ #define QSHOW_SIGNALS 0 -#define N_LOWTAG_BITS 3 -#define LOWTAG_MASK ((1<> N_WIDETAG_BITS)) - -#define CONS(obj) ((struct cons *)((obj)-LIST_POINTER_LOWTAG)) -#define SYMBOL(obj) ((struct symbol *)((obj)-OTHER_POINTER_LOWTAG)) -#define FDEFN(obj) ((struct fdefn *)((obj)-OTHER_POINTER_LOWTAG)) - /* KLUDGE: These are in theory machine-dependent and OS-dependent, but * in practice the "foo int" definitions work for all the machines * that SBCL runs on as of 0.6.7. If we port to the Alpha or some * other non-32-bit machine we'll probably need real machine-dependent * and OS-dependent definitions again. */ /* even on alpha, int happens to be 4 bytes. long is longer. */ +/* FIXME: these names really shouldn't reflect their length and this + is not quite right for some of the FFI stuff */ +typedef unsigned long u64; +typedef signed long s64; typedef unsigned int u32; typedef signed int s32; -#define LOW_WORD(c) ((long)(c) & 0xFFFFFFFFL) + /* this is an integral type the same length as a machine pointer */ typedef unsigned long pointer_sized_uint_t ; -typedef u32 lispobj; +/* FIXME: we do things this way because of the alpha32 port. once + alpha64 has arrived, all this nastiness can go away */ +#if 64 == N_WORD_BITS +#define LOW_WORD(c) ((pointer_sized_uint_t)c) +typedef unsigned long lispobj; +#else +#define LOW_WORD(c) ((long)(c) & 0xFFFFFFFFL) +/* fake it on alpha32 */ +typedef unsigned int lispobj; +#endif static inline int lowtag_of(lispobj obj) { @@ -75,6 +74,30 @@ widetag_of(lispobj obj) { return obj & WIDETAG_MASK; } +static inline unsigned long +HeaderValue(lispobj obj) +{ + return obj >> N_WIDETAG_BITS; +} + +static inline struct cons * +CONS(lispobj obj) +{ + return (struct cons *)(obj - LIST_POINTER_LOWTAG); +} + +static inline struct symbol * +SYMBOL(lispobj obj) +{ + return (struct symbol *)(obj - OTHER_POINTER_LOWTAG); +} + +static inline struct fdefn * +FDEFN(lispobj obj) +{ + return (struct fdefn *)(obj - OTHER_POINTER_LOWTAG); +} + /* Is the Lisp object obj something with pointer nature (as opposed to * e.g. a fixnum or character or unbound marker)? */ static inline int @@ -97,17 +120,12 @@ native_pointer(lispobj obj) /* FIXME: There seems to be no reason that make_fixnum and fixnum_value * can't be implemented as (possibly inline) functions. */ -#define make_fixnum(n) ((lispobj)((n)<<2)) -#define fixnum_value(n) (((long)n)>>2) +#define make_fixnum(n) ((lispobj)((n)<>N_FIXNUM_TAG_BITS) /* Too bad ANSI C doesn't define "bool" as C++ does.. */ typedef int boolean; -/* FIXME: There seems to be no reason that SymbolFunction can't be - * defined as (possibly inline) functions instead of macros. */ - -static inline lispobj SymbolValue(u32 sym, void *thread); -static inline void SetSymbolValue(u32 sym, lispobj val, void *thread); /* This only works for static symbols. */ /* FIXME: should be called StaticSymbolFunction, right? */ #define SymbolFunction(sym) \