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#include <types.h>
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#include <types.h>
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#include <stdarg.h>
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#include <stdarg.h>
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#define EOF (-1)
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#define EOF (-1)
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#include <string.h>
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#include <io/stream.h>
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#include <io/stream.h>
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#define DEBUG(fmt, ...) \
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{ \
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    char buf[256]; \
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    int n; \
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    n = snprintf(buf, sizeof(buf), fmt, ##__VA_ARGS__); \
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    if (n > 0) \
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        (void) __SYSCALL3(SYS_IO, 1, (sysarg_t) buf, strlen(buf)); \
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}
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extern int getchar(void);
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extern int getchar(void);
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extern int puts(const char * str);
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extern int puts(const char * str);
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extern int putchar(int c);
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extern int putchar(int c);
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