diff options
Diffstat (limited to 'newlib/libc/machine/h8500/mulsi3.c')
-rw-r--r-- | newlib/libc/machine/h8500/mulsi3.c | 72 |
1 files changed, 0 insertions, 72 deletions
diff --git a/newlib/libc/machine/h8500/mulsi3.c b/newlib/libc/machine/h8500/mulsi3.c deleted file mode 100644 index a923e8d..0000000 --- a/newlib/libc/machine/h8500/mulsi3.c +++ /dev/null @@ -1,72 +0,0 @@ - -typedef union { - struct { - unsigned int msw; - unsigned int lsw; -} s; - long v; -} u; - -long __mulsi3(u a, u b) -{ - int s; - long pp1; - long pp2; - long r; - - if (a.s.msw == 0 && - b.s.msw == 0) - { - return (long)a.s.lsw * b.s.lsw; - } - - s = 0; - if (a.v < 0) - { - s = 1; - a.v = - a.v; - } - if (b.v < 0) - { - s = 1-s; - b.v = - b.v; - } - - pp1 = (long)a.s.lsw * b.s.lsw ; - pp2 = (long)a.s.lsw * b.s.msw + (long)a.s.msw * b.s.lsw; - - pp1 += pp2 << 16; - - if (s) - { - pp1 = -pp1; - } - return pp1; -} -long __mulpsi3(long a, long b) -{ - return a*b; -} - - -short -__mulhi3(short a, short b) -{ - int r; - - r = 0; - while (a) - { - if (a & 1) - { - r += b; - - } - b<<=1; - a>>=1; - - } - return r; -} - - |