diff options
Diffstat (limited to 'newlib/libc/machine/w65/mulsi3.c')
-rw-r--r-- | newlib/libc/machine/w65/mulsi3.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/newlib/libc/machine/w65/mulsi3.c b/newlib/libc/machine/w65/mulsi3.c new file mode 100644 index 000000000..b48fe97ac --- /dev/null +++ b/newlib/libc/machine/w65/mulsi3.c @@ -0,0 +1,17 @@ + + +long +__mulsi3(unsigned long a, unsigned long b) +{ + long res = 0; + while (a) + { + if (a & 1) + { + res += b; + } + b <<= 1; + a >>=1; + } + return res; +} |