mirror of
https://github.com/trezor/trezor-firmware.git
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93 lines
3.5 KiB
C
93 lines
3.5 KiB
C
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#include "curve25519-donna-portable-identify.h"
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#define mul32x32_64(a,b) (((uint64_t)(a))*(b))
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/* platform */
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#if defined(COMPILER_MSVC)
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#include <intrin.h>
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#if !defined(_DEBUG)
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#undef mul32x32_64
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#define mul32x32_64(a,b) __emulu(a,b)
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#endif
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#undef inline
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#define inline __forceinline
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#define DONNA_INLINE __forceinline
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#define DONNA_NOINLINE __declspec(noinline)
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#define ALIGN(x) __declspec(align(x))
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#define ROTL32(a,b) _rotl(a,b)
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#define ROTR32(a,b) _rotr(a,b)
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#else
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#include <sys/param.h>
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#define DONNA_INLINE inline __attribute__((always_inline))
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#define DONNA_NOINLINE __attribute__((noinline))
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#define ALIGN(x) __attribute__((aligned(x)))
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#define ROTL32(a,b) (((a) << (b)) | ((a) >> (32 - b)))
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#define ROTR32(a,b) (((a) >> (b)) | ((a) << (32 - b)))
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#endif
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/* uint128_t */
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#if defined(CPU_64BITS) && !defined(ED25519_FORCE_32BIT)
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#if defined(COMPILER_CLANG) && (COMPILER_CLANG >= 30100)
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#define HAVE_NATIVE_UINT128
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typedef unsigned __int128 uint128_t;
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#elif defined(COMPILER_MSVC)
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#define HAVE_UINT128
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typedef struct uint128_t {
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uint64_t lo, hi;
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} uint128_t;
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#define mul64x64_128(out,a,b) out.lo = _umul128(a,b,&out.hi);
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#define shr128_pair(out,hi,lo,shift) out = __shiftright128(lo, hi, shift);
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#define shl128_pair(out,hi,lo,shift) out = __shiftleft128(lo, hi, shift);
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#define shr128(out,in,shift) shr128_pair(out, in.hi, in.lo, shift)
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#define shl128(out,in,shift) shl128_pair(out, in.hi, in.lo, shift)
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#define add128(a,b) { uint64_t p = a.lo; a.lo += b.lo; a.hi += b.hi + (a.lo < p); }
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#define add128_64(a,b) { uint64_t p = a.lo; a.lo += b; a.hi += (a.lo < p); }
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#define lo128(a) (a.lo)
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#define hi128(a) (a.hi)
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#elif defined(COMPILER_GCC) && !defined(HAVE_NATIVE_UINT128)
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#if defined(__SIZEOF_INT128__)
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#define HAVE_NATIVE_UINT128
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typedef unsigned __int128 uint128_t;
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#elif (COMPILER_GCC >= 40400)
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#define HAVE_NATIVE_UINT128
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typedef unsigned uint128_t __attribute__((mode(TI)));
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#elif defined(CPU_X86_64)
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#define HAVE_UINT128
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typedef struct uint128_t {
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uint64_t lo, hi;
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} uint128_t;
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#define mul64x64_128(out,a,b) __asm__ ("mulq %3" : "=a" (out.lo), "=d" (out.hi) : "a" (a), "rm" (b));
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#define shr128_pair(out,hi,lo,shift) __asm__ ("shrdq %2,%1,%0" : "+r" (lo) : "r" (hi), "J" (shift)); out = lo;
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#define shl128_pair(out,hi,lo,shift) __asm__ ("shldq %2,%1,%0" : "+r" (hi) : "r" (lo), "J" (shift)); out = hi;
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#define shr128(out,in,shift) shr128_pair(out,in.hi, in.lo, shift)
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#define shl128(out,in,shift) shl128_pair(out,in.hi, in.lo, shift)
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#define add128(a,b) __asm__ ("addq %4,%2; adcq %5,%3" : "=r" (a.hi), "=r" (a.lo) : "1" (a.lo), "0" (a.hi), "rm" (b.lo), "rm" (b.hi) : "cc");
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#define add128_64(a,b) __asm__ ("addq %4,%2; adcq $0,%3" : "=r" (a.hi), "=r" (a.lo) : "1" (a.lo), "0" (a.hi), "rm" (b) : "cc");
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#define lo128(a) (a.lo)
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#define hi128(a) (a.hi)
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#endif
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#endif
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#if defined(HAVE_NATIVE_UINT128)
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#define HAVE_UINT128
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#define mul64x64_128(out,a,b) out = (uint128_t)a * b;
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#define shr128_pair(out,hi,lo,shift) out = (uint64_t)((((uint128_t)hi << 64) | lo) >> (shift));
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#define shl128_pair(out,hi,lo,shift) out = (uint64_t)(((((uint128_t)hi << 64) | lo) << (shift)) >> 64);
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#define shr128(out,in,shift) out = (uint64_t)(in >> (shift));
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#define shl128(out,in,shift) out = (uint64_t)((in << shift) >> 64);
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#define add128(a,b) a += b;
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#define add128_64(a,b) a += (uint64_t)b;
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#define lo128(a) ((uint64_t)a)
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#define hi128(a) ((uint64_t)(a >> 64))
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#endif
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#if !defined(HAVE_UINT128)
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#error Need a uint128_t implementation!
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#endif
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#endif
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#include <stdlib.h>
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#include <string.h>
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