mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 17:07:38 +00:00
26 lines
421 B
C
26 lines
421 B
C
|
#include "libgcc.h"
|
||
|
|
|
||
|
|
long long __ashldi3(long long u, word_type b)
|
||
|
|
{
|
||
|
|
DWunion uu, w;
|
||
|
|
word_type bm;
|
||
|
|
|
||
|
|
if (b == 0)
|
||
|
|
return u;
|
||
|
|
|
||
|
|
uu.ll = u;
|
||
|
|
bm = 32 - b;
|
||
|
|
|
||
|
|
if (bm <= 0) {
|
||
|
|
w.s.low = 0;
|
||
|
|
w.s.high = (unsigned int) uu.s.low << -bm;
|
||
|
|
} else {
|
||
|
|
const unsigned int carries = (unsigned int) uu.s.low >> bm;
|
||
|
|
|
||
|
|
w.s.low = (unsigned int) uu.s.low << b;
|
||
|
|
w.s.high = ((unsigned int) uu.s.high << b) | carries;
|
||
|
|
}
|
||
|
|
|
||
|
|
return w.ll;
|
||
|
|
}
|