tsiry-sandratraina.com
A modern Music Player Daemon based on Rockbox open source high quality audio player
libadwaita
audio
rust
zig
deno
mpris
rockbox
mpd
pdbox: Reverted premature commit of Coldfire optimization.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26560 a1c6a512-1295-4272-9138-f99709370657
-17
-17
apps/plugins/pdbox/PDa/src/m_fixed.h
-17
apps/plugins/pdbox/PDa/src/m_fixed.h
···
31
31
lo; \
32
32
})
33
33
#define idiv(a,b) ((((long long) (a) )<<fix1)/(long long) (b) )
34
-
#elif defined(CPU_COLDFIRE)
35
-
#define mult(a,b) mult_cf((a),(b))
36
-
static inline t_fixed mult_cf(t_fixed x, t_fixed y)
37
-
{
38
-
t_fixed t1, t2;
39
-
asm volatile (
40
-
"mac.l %[x],%[y],%%acc0 \n" /* multiply */
41
-
"mulu.l %[y],%[x] \n" /* get low half, avoid emac stall */
42
-
"movclr.l %%acc0,%[t1] \n" /* get higher half */
43
-
"asl.l %[shl],%[t1] \n" /* hi <<= 13, plus one free */
44
-
"lsr.l %[shr],%[x] \n" /* (unsigned)lo >>= 18 */
45
-
"or.l %[x],%[t1] \n" /* combine result */
46
-
: [t1]"=&d"(t1), [t2]"=&d"(t2), [x]"+d"(x)
47
-
: [y]"d"(y), [shl]"d"(31-fix1), [shr]"d"(fix1));
48
-
return t1;
49
-
}
50
-
#define idiv(a,b) ((((long long) (a) )<<fix1)/(long long) (b) )
51
34
#else /* CPU_... */
52
35
#define mult(a,b) (long long)(((long long) (a) * (long long) (b))>>fix1)
53
36
#define idiv(a,b) ((((long long) (a) )<<fix1)/(long long) (b) )