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| author | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2013-12-03 13:57:02 +0200 |
|---|---|---|
| committer | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2013-12-03 13:57:02 +0200 |
| commit | 80896bc8f5e6ed9a627374e34f040ad5f3617584 (patch) | |
| tree | 4025da8b0b8be08e1c479c6f39696805e83353ba /mpi/longlong.h | |
| parent | d4ce0cfe0d35d7ec69c115456848b5b735c928ea (diff) | |
| download | libgcrypt-80896bc8f5e6ed9a627374e34f040ad5f3617584.tar.gz | |
Add aarch64 (arm64) mpi assembly
* mpi/aarch64/mpi-asm-defs.h: New.
* mpi/aarch64/mpih-add1.S: New.
* mpi/aarch64/mpih-mul1.S: New.
* mpi/aarch64/mpih-mul2.S: New.
* mpi/aarch64/mpih-mul3.S: New.
* mpi/aarch64/mpih-sub1.S: New.
* mpi/config.links [host=aarch64-*-*]: Add configguration for aarch64
assembly.
* mpi/longlong.h [__aarch64__] (add_ssaaaa, sub_ddmmss, umul_ppmm)
(count_leading_zeros): New.
--
Add preliminary aarch64 assembly implementations for mpi.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Diffstat (limited to 'mpi/longlong.h')
| -rw-r--r-- | mpi/longlong.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/mpi/longlong.h b/mpi/longlong.h index 146830b0..8dd8fe8d 100644 --- a/mpi/longlong.h +++ b/mpi/longlong.h @@ -268,6 +268,44 @@ extern UDItype __udiv_qrnnd (); #endif /* __arm__ */ /*************************************** + ********** ARM64 / Aarch64 ********** + ***************************************/ +#if defined(__aarch64__) && W_TYPE_SIZE == 64 +#define add_ssaaaa(sh, sl, ah, al, bh, bl) \ + __asm__ ("adds %1, %4, %5\n" \ + "adc %0, %2, %3\n" \ + : "=r" ((sh)), \ + "=&r" ((sl)) \ + : "r" ((UDItype)(ah)), \ + "r" ((UDItype)(bh)), \ + "r" ((UDItype)(al)), \ + "r" ((UDItype)(bl)) __CLOBBER_CC) +#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ + __asm__ ("subs %1, %4, %5\n" \ + "sbc %0, %2, %3\n" \ + : "=r" ((sh)), \ + "=&r" ((sl)) \ + : "r" ((UDItype)(ah)), \ + "r" ((UDItype)(bh)), \ + "r" ((UDItype)(al)), \ + "r" ((UDItype)(bl)) __CLOBBER_CC) +#define umul_ppmm(ph, pl, m0, m1) \ + do { \ + UDItype __m0 = (m0), __m1 = (m1), __ph; \ + (pl) = __m0 * __m1; \ + __asm__ ("umulh %0,%1,%2" \ + : "=r" (__ph) \ + : "r" (__m0), \ + "r" (__m1)); \ + (ph) = __ph; \ + } while (0) +#define count_leading_zeros(count, x) \ + __asm__ ("clz %0, %1\n" \ + : "=r" ((count)) \ + : "r" ((UDItype)(x))) +#endif /* __aarch64__ */ + +/*************************************** ************** CLIPPER ************** ***************************************/ #if defined (__clipper__) && W_TYPE_SIZE == 32 |