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Rev 1566 Rev 1568
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void bzero(void *ptr, size_t len) {
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void bzero(void *ptr, size_t len) {
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  while (len > 0) ((char *)ptr)[--len] = 0;
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  while (len > 0) ((char *)ptr)[--len] = 0;
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}
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}
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/* TODO this function does not handle overlapping strings well! */
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/* TODO this function does not handle overlapping strings well! */
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void far *_fmemmove(void far *dst, const void far *src, size_t len) {
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void fmemmove(void far *dst, const void far *src, size_t len) {
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  while (len-- > 0) {
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  while (len-- > 0) {
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    ((char far *)dst)[len] = ((char far *)src)[len];
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    *(char far *)dst = *(char far *)src;
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    dst = (char far *)dst + 1;
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    src = (char far *)src + 1;
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  }
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  }
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  return(dst);
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}
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}
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unsigned short mdr_dos_fclose(unsigned short handle) {
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unsigned short mdr_dos_fclose(unsigned short handle) {
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  unsigned short res = 0;
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  unsigned short res = 0;
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  _asm {
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  _asm {