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Annotation of gcc/va-m88k.h, revision 1.1

1.1     ! root        1: /* This file contains changes made by Data General, December 1989.  */
        !             2: /* GNU C varargs support for the Motorola 88100  */
        !             3: 
        !             4: #ifndef __INT_VARARGS_H                /* Prevent multiple inclusions of this file */
        !             5: #define __INT_VARARGS_H                /* and _int_varargs.h under DG/UX */
        !             6: 
        !             7: typedef struct
        !             8: {
        !             9:   int  __va_arg;               /* argument number */
        !            10:   int *__va_stk;               /* start of args passed on stack */
        !            11:   int *__va_reg;               /* start of args passed in regs */
        !            12: } va_list;
        !            13: 
        !            14: #else
        !            15: #undef __va_size
        !            16: #undef __va_reg_p
        !            17: #endif /* __INT_VARARGS_H */
        !            18: 
        !            19: #ifdef _STDARG_H /* stdarg.h support */
        !            20: 
        !            21: #if __GNUC__ > 1 /* GCC 2.0 and beyond */
        !            22: #define va_start(AP,LASTARG) ((AP) = *(va_list *)__builtin_saveregs())
        !            23: #else
        !            24: #define va_start(AP,LASTARG) \
        !            25:   ( (AP).__va_reg = (int *) __builtin_saveregs2(0), \
        !            26:     (AP).__va_stk = (int *) __builtin_argptr(), \
        !            27:     (AP).__va_arg = (int) (__builtin_argsize() + 3) / 4 )
        !            28: #endif
        !            29: 
        !            30: #else /* varargs.h support */
        !            31: 
        !            32: #if __GNUC__ > 1 /* GCC 2.0 and beyond */
        !            33: #define va_start(AP) ((AP) = *(va_list *)__builtin_saveregs())
        !            34: #else
        !            35: #define va_start(AP) \
        !            36:   ( (AP).__va_reg = (int *) __builtin_saveregs2(1), \
        !            37:     (AP).__va_stk = (int *) __builtin_argptr(), \
        !            38:     (AP).__va_arg = (int) (__builtin_argsize() - 4 + 3) / 4 )
        !            39: #endif
        !            40: #define va_alist __va_1st_arg
        !            41: #define va_dcl register int va_alist;
        !            42: 
        !            43: #endif /* _STDARG_H */
        !            44: 
        !            45: #define __va_reg_p(TYPE) \
        !            46:   (__builtin_classify_type(*(TYPE *)0) < 12 \
        !            47:    ? sizeof(TYPE) <= 8 : sizeof(TYPE) == 4 && __alignof__(TYPE) == 4)
        !            48: 
        !            49: #define        __va_size(TYPE) ((sizeof(TYPE) + 3) >> 2)
        !            50: 
        !            51: #define va_arg(AP,TYPE) \
        !            52:   ( (AP).__va_arg = (((AP).__va_arg + (1 << (__alignof__(TYPE) >> 3)) - 1) \
        !            53:                     & ~((1 << (__alignof__(TYPE) >> 3)) - 1)) \
        !            54:     + __va_size(TYPE), \
        !            55:     *((TYPE *) ((__va_reg_p(TYPE) && (AP).__va_arg < 8 + __va_size(TYPE) \
        !            56:                 ? (AP).__va_reg : (AP).__va_stk) \
        !            57:                + ((AP).__va_arg - __va_size(TYPE)))))
        !            58: 
        !            59: #define va_end(AP)

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