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SP: support aarch64 big endian

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This commit is contained in:
Sean Parkinson
2022-12-13 09:33:16 +10:00
parent c959d22b98
commit bc3b723609
1 changed files with 264 additions and 14 deletions
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278
wolfcrypt/src/sp_arm64.c
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@ -75,7 +75,7 @@
static void sp_2048_from_bin(sp_digit* r, int size, const byte* a, int n)
{
sp_int64 nl = n;
sp_int64 size8 = size * 8;
sp_int64 bytes = size * 8;
__asm__ __volatile__ (
"add x4, %[a], %[n]\n\t"
@ -88,7 +88,9 @@ static void sp_2048_from_bin(sp_digit* r, int size, const byte* a, int n)
"1:\n\t"
"ldr x8, [x4], -8\n\t"
"subs x6, x6, 8\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"rev x8, x8\n\t"
#endif
"str x8, [x5], 8\n\t"
"add x7, x7, 8\n\t"
"b.ge 1b\n\t"
@ -96,7 +98,11 @@ static void sp_2048_from_bin(sp_digit* r, int size, const byte* a, int n)
"cmp x6, -7\n\t"
"b.lt 20f\n\t"
/* Put in less than 8 bytes. */
#ifdef LITTLE_ENDIAN_ORDER
"str xzr, [x5]\n\t"
#else
"str xzr, [x5], 7\n\t"
#endif
"add x7, x7, 8\n\t"
"add x4, x4, 7\n\t"
"b.eq 17f\n\t"
@ -109,25 +115,53 @@ static void sp_2048_from_bin(sp_digit* r, int size, const byte* a, int n)
"cmp x6, -2\n\t"
"b.eq 12f\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"12:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"13:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"14:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"15:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"16:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"17:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"20:\n\t"
"add x5, %[r], x7\n\t"
"subs x7, %[size], x7\n\t"
@ -139,7 +173,7 @@ static void sp_2048_from_bin(sp_digit* r, int size, const byte* a, int n)
"b.gt 21b\n\t"
"30:\n\t"
:
: [r] "r" (r), [size] "r" (size8), [a] "r" (a), [n] "r" (nl)
: [r] "r" (r), [size] "r" (bytes), [a] "r" (a), [n] "r" (nl)
: "memory", "x4", "x5", "x6", "x7", "x8"
);
}
@ -246,7 +280,9 @@ static void sp_2048_to_bin_32(sp_digit* r, byte* a)
for (i = 31; i >= 0; i--, j += 8) {
__asm__ __volatile__ (
"ldr x4, [%[r]]\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"rev x4, x4\n\t"
#endif
"str x4, [%[a]]\n\t"
:
: [r] "r" (r + i), [a] "r" (a + j)
@ -6932,7 +6968,7 @@ int sp_ModExp_1024(const mp_int* base, const mp_int* exp, const mp_int* mod,
static void sp_3072_from_bin(sp_digit* r, int size, const byte* a, int n)
{
sp_int64 nl = n;
sp_int64 size8 = size * 8;
sp_int64 bytes = size * 8;
__asm__ __volatile__ (
"add x4, %[a], %[n]\n\t"
@ -6945,7 +6981,9 @@ static void sp_3072_from_bin(sp_digit* r, int size, const byte* a, int n)
"1:\n\t"
"ldr x8, [x4], -8\n\t"
"subs x6, x6, 8\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"rev x8, x8\n\t"
#endif
"str x8, [x5], 8\n\t"
"add x7, x7, 8\n\t"
"b.ge 1b\n\t"
@ -6953,7 +6991,11 @@ static void sp_3072_from_bin(sp_digit* r, int size, const byte* a, int n)
"cmp x6, -7\n\t"
"b.lt 20f\n\t"
/* Put in less than 8 bytes. */
#ifdef LITTLE_ENDIAN_ORDER
"str xzr, [x5]\n\t"
#else
"str xzr, [x5], 7\n\t"
#endif
"add x7, x7, 8\n\t"
"add x4, x4, 7\n\t"
"b.eq 17f\n\t"
@ -6966,25 +7008,53 @@ static void sp_3072_from_bin(sp_digit* r, int size, const byte* a, int n)
"cmp x6, -2\n\t"
"b.eq 12f\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"12:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"13:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"14:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"15:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"16:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"17:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"20:\n\t"
"add x5, %[r], x7\n\t"
"subs x7, %[size], x7\n\t"
@ -6996,7 +7066,7 @@ static void sp_3072_from_bin(sp_digit* r, int size, const byte* a, int n)
"b.gt 21b\n\t"
"30:\n\t"
:
: [r] "r" (r), [size] "r" (size8), [a] "r" (a), [n] "r" (nl)
: [r] "r" (r), [size] "r" (bytes), [a] "r" (a), [n] "r" (nl)
: "memory", "x4", "x5", "x6", "x7", "x8"
);
}
@ -7103,7 +7173,9 @@ static void sp_3072_to_bin_48(sp_digit* r, byte* a)
for (i = 47; i >= 0; i--, j += 8) {
__asm__ __volatile__ (
"ldr x4, [%[r]]\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"rev x4, x4\n\t"
#endif
"str x4, [%[a]]\n\t"
:
: [r] "r" (r + i), [a] "r" (a + j)
@ -16499,7 +16571,7 @@ int sp_ModExp_1536(const mp_int* base, const mp_int* exp, const mp_int* mod,
static void sp_4096_from_bin(sp_digit* r, int size, const byte* a, int n)
{
sp_int64 nl = n;
sp_int64 size8 = size * 8;
sp_int64 bytes = size * 8;
__asm__ __volatile__ (
"add x4, %[a], %[n]\n\t"
@ -16512,7 +16584,9 @@ static void sp_4096_from_bin(sp_digit* r, int size, const byte* a, int n)
"1:\n\t"
"ldr x8, [x4], -8\n\t"
"subs x6, x6, 8\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"rev x8, x8\n\t"
#endif
"str x8, [x5], 8\n\t"
"add x7, x7, 8\n\t"
"b.ge 1b\n\t"
@ -16520,7 +16594,11 @@ static void sp_4096_from_bin(sp_digit* r, int size, const byte* a, int n)
"cmp x6, -7\n\t"
"b.lt 20f\n\t"
/* Put in less than 8 bytes. */
#ifdef LITTLE_ENDIAN_ORDER
"str xzr, [x5]\n\t"
#else
"str xzr, [x5], 7\n\t"
#endif
"add x7, x7, 8\n\t"
"add x4, x4, 7\n\t"
"b.eq 17f\n\t"
@ -16533,25 +16611,53 @@ static void sp_4096_from_bin(sp_digit* r, int size, const byte* a, int n)
"cmp x6, -2\n\t"
"b.eq 12f\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"12:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"13:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"14:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"15:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"16:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"17:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"20:\n\t"
"add x5, %[r], x7\n\t"
"subs x7, %[size], x7\n\t"
@ -16563,7 +16669,7 @@ static void sp_4096_from_bin(sp_digit* r, int size, const byte* a, int n)
"b.gt 21b\n\t"
"30:\n\t"
:
: [r] "r" (r), [size] "r" (size8), [a] "r" (a), [n] "r" (nl)
: [r] "r" (r), [size] "r" (bytes), [a] "r" (a), [n] "r" (nl)
: "memory", "x4", "x5", "x6", "x7", "x8"
);
}
@ -16670,7 +16776,9 @@ static void sp_4096_to_bin_64(sp_digit* r, byte* a)
for (i = 63; i >= 0; i--, j += 8) {
__asm__ __volatile__ (
"ldr x4, [%[r]]\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"rev x4, x4\n\t"
#endif
"str x4, [%[a]]\n\t"
:
: [r] "r" (r + i), [a] "r" (a + j)
@ -39497,7 +39605,7 @@ static void sp_256_add_one_4(sp_digit* a)
static void sp_256_from_bin(sp_digit* r, int size, const byte* a, int n)
{
sp_int64 nl = n;
sp_int64 size8 = size * 8;
sp_int64 bytes = size * 8;
__asm__ __volatile__ (
"add x4, %[a], %[n]\n\t"
@ -39510,7 +39618,9 @@ static void sp_256_from_bin(sp_digit* r, int size, const byte* a, int n)
"1:\n\t"
"ldr x8, [x4], -8\n\t"
"subs x6, x6, 8\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"rev x8, x8\n\t"
#endif
"str x8, [x5], 8\n\t"
"add x7, x7, 8\n\t"
"b.ge 1b\n\t"
@ -39518,7 +39628,11 @@ static void sp_256_from_bin(sp_digit* r, int size, const byte* a, int n)
"cmp x6, -7\n\t"
"b.lt 20f\n\t"
/* Put in less than 8 bytes. */
#ifdef LITTLE_ENDIAN_ORDER
"str xzr, [x5]\n\t"
#else
"str xzr, [x5], 7\n\t"
#endif
"add x7, x7, 8\n\t"
"add x4, x4, 7\n\t"
"b.eq 17f\n\t"
@ -39531,25 +39645,53 @@ static void sp_256_from_bin(sp_digit* r, int size, const byte* a, int n)
"cmp x6, -2\n\t"
"b.eq 12f\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"12:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"13:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"14:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"15:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"16:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"17:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"20:\n\t"
"add x5, %[r], x7\n\t"
"subs x7, %[size], x7\n\t"
@ -39561,7 +39703,7 @@ static void sp_256_from_bin(sp_digit* r, int size, const byte* a, int n)
"b.gt 21b\n\t"
"30:\n\t"
:
: [r] "r" (r), [size] "r" (size8), [a] "r" (a), [n] "r" (nl)
: [r] "r" (r), [size] "r" (bytes), [a] "r" (a), [n] "r" (nl)
: "memory", "x4", "x5", "x6", "x7", "x8"
);
}
@ -39773,7 +39915,9 @@ static void sp_256_to_bin_4(sp_digit* r, byte* a)
for (i = 3; i >= 0; i--, j += 8) {
__asm__ __volatile__ (
"ldr x4, [%[r]]\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"rev x4, x4\n\t"
#endif
"str x4, [%[a]]\n\t"
:
: [r] "r" (r + i), [a] "r" (a + j)
@ -65545,7 +65689,7 @@ static void sp_384_add_one_6(sp_digit* a)
static void sp_384_from_bin(sp_digit* r, int size, const byte* a, int n)
{
sp_int64 nl = n;
sp_int64 size8 = size * 8;
sp_int64 bytes = size * 8;
__asm__ __volatile__ (
"add x4, %[a], %[n]\n\t"
@ -65558,7 +65702,9 @@ static void sp_384_from_bin(sp_digit* r, int size, const byte* a, int n)
"1:\n\t"
"ldr x8, [x4], -8\n\t"
"subs x6, x6, 8\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"rev x8, x8\n\t"
#endif
"str x8, [x5], 8\n\t"
"add x7, x7, 8\n\t"
"b.ge 1b\n\t"
@ -65566,7 +65712,11 @@ static void sp_384_from_bin(sp_digit* r, int size, const byte* a, int n)
"cmp x6, -7\n\t"
"b.lt 20f\n\t"
/* Put in less than 8 bytes. */
#ifdef LITTLE_ENDIAN_ORDER
"str xzr, [x5]\n\t"
#else
"str xzr, [x5], 7\n\t"
#endif
"add x7, x7, 8\n\t"
"add x4, x4, 7\n\t"
"b.eq 17f\n\t"
@ -65579,25 +65729,53 @@ static void sp_384_from_bin(sp_digit* r, int size, const byte* a, int n)
"cmp x6, -2\n\t"
"b.eq 12f\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"12:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"13:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"14:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"15:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"16:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"17:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"20:\n\t"
"add x5, %[r], x7\n\t"
"subs x7, %[size], x7\n\t"
@ -65609,7 +65787,7 @@ static void sp_384_from_bin(sp_digit* r, int size, const byte* a, int n)
"b.gt 21b\n\t"
"30:\n\t"
:
: [r] "r" (r), [size] "r" (size8), [a] "r" (a), [n] "r" (nl)
: [r] "r" (r), [size] "r" (bytes), [a] "r" (a), [n] "r" (nl)
: "memory", "x4", "x5", "x6", "x7", "x8"
);
}
@ -65821,7 +65999,9 @@ static void sp_384_to_bin_6(sp_digit* r, byte* a)
for (i = 5; i >= 0; i--, j += 8) {
__asm__ __volatile__ (
"ldr x4, [%[r]]\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"rev x4, x4\n\t"
#endif
"str x4, [%[a]]\n\t"
:
: [r] "r" (r + i), [a] "r" (a + j)
@ -110580,7 +110760,7 @@ static void sp_521_add_one_9(sp_digit* a)
static void sp_521_from_bin(sp_digit* r, int size, const byte* a, int n)
{
sp_int64 nl = n;
sp_int64 size8 = size * 8;
sp_int64 bytes = size * 8;
__asm__ __volatile__ (
"add x4, %[a], %[n]\n\t"
@ -110593,7 +110773,9 @@ static void sp_521_from_bin(sp_digit* r, int size, const byte* a, int n)
"1:\n\t"
"ldr x8, [x4], -8\n\t"
"subs x6, x6, 8\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"rev x8, x8\n\t"
#endif
"str x8, [x5], 8\n\t"
"add x7, x7, 8\n\t"
"b.ge 1b\n\t"
@ -110601,7 +110783,11 @@ static void sp_521_from_bin(sp_digit* r, int size, const byte* a, int n)
"cmp x6, -7\n\t"
"b.lt 20f\n\t"
/* Put in less than 8 bytes. */
#ifdef LITTLE_ENDIAN_ORDER
"str xzr, [x5]\n\t"
#else
"str xzr, [x5], 7\n\t"
#endif
"add x7, x7, 8\n\t"
"add x4, x4, 7\n\t"
"b.eq 17f\n\t"
@ -110614,25 +110800,53 @@ static void sp_521_from_bin(sp_digit* r, int size, const byte* a, int n)
"cmp x6, -2\n\t"
"b.eq 12f\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"12:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"13:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"14:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"15:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"16:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"17:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"20:\n\t"
"add x5, %[r], x7\n\t"
"subs x7, %[size], x7\n\t"
@ -110644,7 +110858,7 @@ static void sp_521_from_bin(sp_digit* r, int size, const byte* a, int n)
"b.gt 21b\n\t"
"30:\n\t"
:
: [r] "r" (r), [size] "r" (size8), [a] "r" (a), [n] "r" (nl)
: [r] "r" (r), [size] "r" (bytes), [a] "r" (a), [n] "r" (nl)
: "memory", "x4", "x5", "x6", "x7", "x8"
);
}
@ -110859,7 +111073,9 @@ static void sp_521_to_bin_9(sp_digit* r, byte* a)
for (i = 7; i >= 0; i--, j += 8) {
__asm__ __volatile__ (
"ldr x4, [%[r]]\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"rev x4, x4\n\t"
#endif
"str x4, [%[a]]\n\t"
:
: [r] "r" (r + i), [a] "r" (a + j)
@ -124262,7 +124478,7 @@ int sp_Pairing_precomp_1024(const ecc_point* pm, const ecc_point* qm,
static void sp_1024_from_bin(sp_digit* r, int size, const byte* a, int n)
{
sp_int64 nl = n;
sp_int64 size8 = size * 8;
sp_int64 bytes = size * 8;
__asm__ __volatile__ (
"add x4, %[a], %[n]\n\t"
@ -124275,7 +124491,9 @@ static void sp_1024_from_bin(sp_digit* r, int size, const byte* a, int n)
"1:\n\t"
"ldr x8, [x4], -8\n\t"
"subs x6, x6, 8\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"rev x8, x8\n\t"
#endif
"str x8, [x5], 8\n\t"
"add x7, x7, 8\n\t"
"b.ge 1b\n\t"
@ -124283,7 +124501,11 @@ static void sp_1024_from_bin(sp_digit* r, int size, const byte* a, int n)
"cmp x6, -7\n\t"
"b.lt 20f\n\t"
/* Put in less than 8 bytes. */
#ifdef LITTLE_ENDIAN_ORDER
"str xzr, [x5]\n\t"
#else
"str xzr, [x5], 7\n\t"
#endif
"add x7, x7, 8\n\t"
"add x4, x4, 7\n\t"
"b.eq 17f\n\t"
@ -124296,25 +124518,53 @@ static void sp_1024_from_bin(sp_digit* r, int size, const byte* a, int n)
"cmp x6, -2\n\t"
"b.eq 12f\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"12:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"13:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"14:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"15:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"16:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"17:\n\t"
"ldrb w8, [x4], -1\n\t"
#ifdef LITTLE_ENDIAN_ORDER
"strb w8, [x5], 1\n\t"
#else
"strb w8, [x5], -1\n\t"
#endif
"20:\n\t"
"add x5, %[r], x7\n\t"
"subs x7, %[size], x7\n\t"
@ -124326,7 +124576,7 @@ static void sp_1024_from_bin(sp_digit* r, int size, const byte* a, int n)
"b.gt 21b\n\t"
"30:\n\t"
:
: [r] "r" (r), [size] "r" (size8), [a] "r" (a), [n] "r" (nl)
: [r] "r" (r), [size] "r" (bytes), [a] "r" (a), [n] "r" (nl)
: "memory", "x4", "x5", "x6", "x7", "x8"
);
}