mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
eeb84df6e4
SH2A toolchains often only provide an fdpic version of libgcc. This can't be used with bare-metal software like U-Boot, so this patch provides the necessary functions extracted from libgcc. Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
26 lines
423 B
C
26 lines
423 B
C
#include "libgcc.h"
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long long __lshrdi3(long long u, word_type b)
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{
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DWunion uu, w;
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word_type bm;
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if (b == 0)
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return u;
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uu.ll = u;
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bm = 32 - b;
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if (bm <= 0) {
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w.s.high = 0;
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w.s.low = (unsigned int) uu.s.high >> -bm;
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} else {
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const unsigned int carries = (unsigned int) uu.s.high << bm;
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w.s.high = (unsigned int) uu.s.high >> b;
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w.s.low = ((unsigned int) uu.s.low >> b) | carries;
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}
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return w.ll;
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}
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