71 lines
1.5 KiB
C
71 lines
1.5 KiB
C
/* stdarg.h - PowerPC */
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#ifndef __STDARG_H
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#define __STDARG_H 1
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typedef struct {
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int gpr;
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int fpr;
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char *regbase;
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char *membase;
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} va_list;
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char *__va_start(void);
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char *__va_regbase(void);
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int __va_fixedgpr(void);
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int __va_fixedfpr(void);
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#define va_start(vl,dummy) \
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( \
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vl.gpr=__va_fixedgpr(), \
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vl.fpr=__va_fixedfpr(), \
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vl.regbase=__va_regbase(), \
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vl.membase=__va_start() \
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)
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#define va_end(vl) ((vl).regbase=(vl).membase=0)
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#if __STDC_VERSION__ >= 199901L
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#define va_copy(new,old) ((new)=(old))
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#endif
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#define __va_align(type) (__alignof(type)>=4?__alignof(type):4)
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#define __va_do_align(vl,type) ((vl).membase=(char *)((((unsigned int)((vl).membase))+__va_align(type)-1)/__va_align(type)*__va_align(type)))
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#define __va_mem(vl,type) (__va_do_align((vl),type),(vl).membase+=sizeof(type),((type*)((vl).membase))[-1])
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#define va_arg(vl,type) \
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( \
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(__typeof(type)&127)>10? \
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__va_mem((vl),type) \
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: \
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( \
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(((__typeof(type)&127)>=6&&(__typeof(type)&127)<=8)) ? \
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( \
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++(vl).fpr<=8 ? \
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((type*)((vl).regbase+32))[(vl).fpr-1] \
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: \
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__va_mem((vl),type) \
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) \
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: \
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( \
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(__typeof(type)&127)==5? \
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( \
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(vl).gpr<=6 ? \
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((vl).gpr=(((vl).gpr+3)&~1),((type*)((vl).regbase+0))[((vl).gpr>>1)-1]) \
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: \
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__va_mem((vl),type) \
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) \
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: \
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( \
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++(vl).gpr<=8 ? \
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((type*)((vl).regbase+0))[(vl).gpr-1] \
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: \
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__va_mem((vl),type) \
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) \
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) \
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) \
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)
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#endif
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