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author | PikalaxALT <pikalaxalt@gmail.com> | 2017-12-15 09:38:53 -0500 |
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committer | PikalaxALT <pikalaxalt@gmail.com> | 2017-12-15 09:39:34 -0500 |
commit | f95a4a932476be2ba99e2fd081e8d2bc6ea12813 (patch) | |
tree | 75f67192cb2d7b7b575c94edda318e475239b63c /newlib/libc/stdlib/__ten_mu.c | |
parent | f60aca96985e68c7d8a52eb7bc955fb80e132f73 (diff) |
Import newlib and create makefile
Diffstat (limited to 'newlib/libc/stdlib/__ten_mu.c')
-rw-r--r-- | newlib/libc/stdlib/__ten_mu.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/newlib/libc/stdlib/__ten_mu.c b/newlib/libc/stdlib/__ten_mu.c new file mode 100644 index 0000000..439c226 --- /dev/null +++ b/newlib/libc/stdlib/__ten_mu.c @@ -0,0 +1,23 @@ +/* + * [atw] multiply 64 bit accumulator by 10 and add digit. + * The KA/CA way to do this should be to use + * a 64-bit integer internally and use "adjust" to + * convert it to float at the end of processing. + */ + +#include <_ansi.h> + +int +_DEFUN (__ten_mul, (acc, digit), + double *acc _AND + int digit) +{ + /* + * [atw] Crude, but effective (at least on a KB)... + */ + + *acc *= 10; + *acc += digit; + + return 0; /* no overflow */ +} |