diff options
Diffstat (limited to 'src/ext/ed25519/donna/ed25519-donna-64bit-x86.h')
| -rw-r--r-- | src/ext/ed25519/donna/ed25519-donna-64bit-x86.h | 351 |
1 files changed, 351 insertions, 0 deletions
diff --git a/src/ext/ed25519/donna/ed25519-donna-64bit-x86.h b/src/ext/ed25519/donna/ed25519-donna-64bit-x86.h new file mode 100644 index 0000000000..30bd472762 --- /dev/null +++ b/src/ext/ed25519/donna/ed25519-donna-64bit-x86.h @@ -0,0 +1,351 @@ +#if defined(ED25519_GCC_64BIT_X86_CHOOSE) + +#define HAVE_GE25519_SCALARMULT_BASE_CHOOSE_NIELS + +DONNA_NOINLINE static void +ge25519_scalarmult_base_choose_niels(ge25519_niels *t, const uint8_t table[256][96], uint32_t pos, signed char b) { + int64_t breg = (int64_t)b; + uint64_t sign = (uint64_t)breg >> 63; + uint64_t mask = ~(sign - 1); + uint64_t u = (breg + mask) ^ mask; + + __asm__ __volatile__ ( + /* ysubx+xaddy+t2d */ + "movq %0, %%rax ;\n" + "movd %%rax, %%xmm14 ;\n" + "pshufd $0x00, %%xmm14, %%xmm14 ;\n" + "pxor %%xmm0, %%xmm0 ;\n" + "pxor %%xmm1, %%xmm1 ;\n" + "pxor %%xmm2, %%xmm2 ;\n" + "pxor %%xmm3, %%xmm3 ;\n" + "pxor %%xmm4, %%xmm4 ;\n" + "pxor %%xmm5, %%xmm5 ;\n" + + /* 0 */ + "movq $0, %%rax ;\n" + "movd %%rax, %%xmm15 ;\n" + "pshufd $0x00, %%xmm15, %%xmm15 ;\n" + "pcmpeqd %%xmm14, %%xmm15 ;\n" + "movq $1, %%rax ;\n" + "movd %%rax, %%xmm6 ;\n" + "pxor %%xmm7, %%xmm7 ;\n" + "pand %%xmm15, %%xmm6 ;\n" + "pand %%xmm15, %%xmm7 ;\n" + "por %%xmm6, %%xmm0 ;\n" + "por %%xmm7, %%xmm1 ;\n" + "por %%xmm6, %%xmm2 ;\n" + "por %%xmm7, %%xmm3 ;\n" + + /* 1 */ + "movq $1, %%rax ;\n" + "movd %%rax, %%xmm15 ;\n" + "pshufd $0x00, %%xmm15, %%xmm15 ;\n" + "pcmpeqd %%xmm14, %%xmm15 ;\n" + "movdqa 0(%1), %%xmm6 ;\n" + "movdqa 16(%1), %%xmm7 ;\n" + "movdqa 32(%1), %%xmm8 ;\n" + "movdqa 48(%1), %%xmm9 ;\n" + "movdqa 64(%1), %%xmm10 ;\n" + "movdqa 80(%1), %%xmm11 ;\n" + "pand %%xmm15, %%xmm6 ;\n" + "pand %%xmm15, %%xmm7 ;\n" + "pand %%xmm15, %%xmm8 ;\n" + "pand %%xmm15, %%xmm9 ;\n" + "pand %%xmm15, %%xmm10 ;\n" + "pand %%xmm15, %%xmm11 ;\n" + "por %%xmm6, %%xmm0 ;\n" + "por %%xmm7, %%xmm1 ;\n" + "por %%xmm8, %%xmm2 ;\n" + "por %%xmm9, %%xmm3 ;\n" + "por %%xmm10, %%xmm4 ;\n" + "por %%xmm11, %%xmm5 ;\n" + + /* 2 */ + "movq $2, %%rax ;\n" + "movd %%rax, %%xmm15 ;\n" + "pshufd $0x00, %%xmm15, %%xmm15 ;\n" + "pcmpeqd %%xmm14, %%xmm15 ;\n" + "movdqa 96(%1), %%xmm6 ;\n" + "movdqa 112(%1), %%xmm7 ;\n" + "movdqa 128(%1), %%xmm8 ;\n" + "movdqa 144(%1), %%xmm9 ;\n" + "movdqa 160(%1), %%xmm10 ;\n" + "movdqa 176(%1), %%xmm11 ;\n" + "pand %%xmm15, %%xmm6 ;\n" + "pand %%xmm15, %%xmm7 ;\n" + "pand %%xmm15, %%xmm8 ;\n" + "pand %%xmm15, %%xmm9 ;\n" + "pand %%xmm15, %%xmm10 ;\n" + "pand %%xmm15, %%xmm11 ;\n" + "por %%xmm6, %%xmm0 ;\n" + "por %%xmm7, %%xmm1 ;\n" + "por %%xmm8, %%xmm2 ;\n" + "por %%xmm9, %%xmm3 ;\n" + "por %%xmm10, %%xmm4 ;\n" + "por %%xmm11, %%xmm5 ;\n" + + /* 3 */ + "movq $3, %%rax ;\n" + "movd %%rax, %%xmm15 ;\n" + "pshufd $0x00, %%xmm15, %%xmm15 ;\n" + "pcmpeqd %%xmm14, %%xmm15 ;\n" + "movdqa 192(%1), %%xmm6 ;\n" + "movdqa 208(%1), %%xmm7 ;\n" + "movdqa 224(%1), %%xmm8 ;\n" + "movdqa 240(%1), %%xmm9 ;\n" + "movdqa 256(%1), %%xmm10 ;\n" + "movdqa 272(%1), %%xmm11 ;\n" + "pand %%xmm15, %%xmm6 ;\n" + "pand %%xmm15, %%xmm7 ;\n" + "pand %%xmm15, %%xmm8 ;\n" + "pand %%xmm15, %%xmm9 ;\n" + "pand %%xmm15, %%xmm10 ;\n" + "pand %%xmm15, %%xmm11 ;\n" + "por %%xmm6, %%xmm0 ;\n" + "por %%xmm7, %%xmm1 ;\n" + "por %%xmm8, %%xmm2 ;\n" + "por %%xmm9, %%xmm3 ;\n" + "por %%xmm10, %%xmm4 ;\n" + "por %%xmm11, %%xmm5 ;\n" + + /* 4 */ + "movq $4, %%rax ;\n" + "movd %%rax, %%xmm15 ;\n" + "pshufd $0x00, %%xmm15, %%xmm15 ;\n" + "pcmpeqd %%xmm14, %%xmm15 ;\n" + "movdqa 288(%1), %%xmm6 ;\n" + "movdqa 304(%1), %%xmm7 ;\n" + "movdqa 320(%1), %%xmm8 ;\n" + "movdqa 336(%1), %%xmm9 ;\n" + "movdqa 352(%1), %%xmm10 ;\n" + "movdqa 368(%1), %%xmm11 ;\n" + "pand %%xmm15, %%xmm6 ;\n" + "pand %%xmm15, %%xmm7 ;\n" + "pand %%xmm15, %%xmm8 ;\n" + "pand %%xmm15, %%xmm9 ;\n" + "pand %%xmm15, %%xmm10 ;\n" + "pand %%xmm15, %%xmm11 ;\n" + "por %%xmm6, %%xmm0 ;\n" + "por %%xmm7, %%xmm1 ;\n" + "por %%xmm8, %%xmm2 ;\n" + "por %%xmm9, %%xmm3 ;\n" + "por %%xmm10, %%xmm4 ;\n" + "por %%xmm11, %%xmm5 ;\n" + + /* 5 */ + "movq $5, %%rax ;\n" + "movd %%rax, %%xmm15 ;\n" + "pshufd $0x00, %%xmm15, %%xmm15 ;\n" + "pcmpeqd %%xmm14, %%xmm15 ;\n" + "movdqa 384(%1), %%xmm6 ;\n" + "movdqa 400(%1), %%xmm7 ;\n" + "movdqa 416(%1), %%xmm8 ;\n" + "movdqa 432(%1), %%xmm9 ;\n" + "movdqa 448(%1), %%xmm10 ;\n" + "movdqa 464(%1), %%xmm11 ;\n" + "pand %%xmm15, %%xmm6 ;\n" + "pand %%xmm15, %%xmm7 ;\n" + "pand %%xmm15, %%xmm8 ;\n" + "pand %%xmm15, %%xmm9 ;\n" + "pand %%xmm15, %%xmm10 ;\n" + "pand %%xmm15, %%xmm11 ;\n" + "por %%xmm6, %%xmm0 ;\n" + "por %%xmm7, %%xmm1 ;\n" + "por %%xmm8, %%xmm2 ;\n" + "por %%xmm9, %%xmm3 ;\n" + "por %%xmm10, %%xmm4 ;\n" + "por %%xmm11, %%xmm5 ;\n" + + /* 6 */ + "movq $6, %%rax ;\n" + "movd %%rax, %%xmm15 ;\n" + "pshufd $0x00, %%xmm15, %%xmm15 ;\n" + "pcmpeqd %%xmm14, %%xmm15 ;\n" + "movdqa 480(%1), %%xmm6 ;\n" + "movdqa 496(%1), %%xmm7 ;\n" + "movdqa 512(%1), %%xmm8 ;\n" + "movdqa 528(%1), %%xmm9 ;\n" + "movdqa 544(%1), %%xmm10 ;\n" + "movdqa 560(%1), %%xmm11 ;\n" + "pand %%xmm15, %%xmm6 ;\n" + "pand %%xmm15, %%xmm7 ;\n" + "pand %%xmm15, %%xmm8 ;\n" + "pand %%xmm15, %%xmm9 ;\n" + "pand %%xmm15, %%xmm10 ;\n" + "pand %%xmm15, %%xmm11 ;\n" + "por %%xmm6, %%xmm0 ;\n" + "por %%xmm7, %%xmm1 ;\n" + "por %%xmm8, %%xmm2 ;\n" + "por %%xmm9, %%xmm3 ;\n" + "por %%xmm10, %%xmm4 ;\n" + "por %%xmm11, %%xmm5 ;\n" + + /* 7 */ + "movq $7, %%rax ;\n" + "movd %%rax, %%xmm15 ;\n" + "pshufd $0x00, %%xmm15, %%xmm15 ;\n" + "pcmpeqd %%xmm14, %%xmm15 ;\n" + "movdqa 576(%1), %%xmm6 ;\n" + "movdqa 592(%1), %%xmm7 ;\n" + "movdqa 608(%1), %%xmm8 ;\n" + "movdqa 624(%1), %%xmm9 ;\n" + "movdqa 640(%1), %%xmm10 ;\n" + "movdqa 656(%1), %%xmm11 ;\n" + "pand %%xmm15, %%xmm6 ;\n" + "pand %%xmm15, %%xmm7 ;\n" + "pand %%xmm15, %%xmm8 ;\n" + "pand %%xmm15, %%xmm9 ;\n" + "pand %%xmm15, %%xmm10 ;\n" + "pand %%xmm15, %%xmm11 ;\n" + "por %%xmm6, %%xmm0 ;\n" + "por %%xmm7, %%xmm1 ;\n" + "por %%xmm8, %%xmm2 ;\n" + "por %%xmm9, %%xmm3 ;\n" + "por %%xmm10, %%xmm4 ;\n" + "por %%xmm11, %%xmm5 ;\n" + + /* 8 */ + "movq $8, %%rax ;\n" + "movd %%rax, %%xmm15 ;\n" + "pshufd $0x00, %%xmm15, %%xmm15 ;\n" + "pcmpeqd %%xmm14, %%xmm15 ;\n" + "movdqa 672(%1), %%xmm6 ;\n" + "movdqa 688(%1), %%xmm7 ;\n" + "movdqa 704(%1), %%xmm8 ;\n" + "movdqa 720(%1), %%xmm9 ;\n" + "movdqa 736(%1), %%xmm10 ;\n" + "movdqa 752(%1), %%xmm11 ;\n" + "pand %%xmm15, %%xmm6 ;\n" + "pand %%xmm15, %%xmm7 ;\n" + "pand %%xmm15, %%xmm8 ;\n" + "pand %%xmm15, %%xmm9 ;\n" + "pand %%xmm15, %%xmm10 ;\n" + "pand %%xmm15, %%xmm11 ;\n" + "por %%xmm6, %%xmm0 ;\n" + "por %%xmm7, %%xmm1 ;\n" + "por %%xmm8, %%xmm2 ;\n" + "por %%xmm9, %%xmm3 ;\n" + "por %%xmm10, %%xmm4 ;\n" + "por %%xmm11, %%xmm5 ;\n" + + /* conditionally swap ysubx and xaddy */ + "movq %3, %%rax ;\n" + "xorq $1, %%rax ;\n" + "movd %%rax, %%xmm14 ;\n" + "pxor %%xmm15, %%xmm15 ;\n" + "pshufd $0x00, %%xmm14, %%xmm14 ;\n" + "pxor %%xmm0, %%xmm2 ;\n" + "pxor %%xmm1, %%xmm3 ;\n" + "pcmpeqd %%xmm14, %%xmm15 ;\n" + "movdqa %%xmm2, %%xmm6 ;\n" + "movdqa %%xmm3, %%xmm7 ;\n" + "pand %%xmm15, %%xmm6 ;\n" + "pand %%xmm15, %%xmm7 ;\n" + "pxor %%xmm6, %%xmm0 ;\n" + "pxor %%xmm7, %%xmm1 ;\n" + "pxor %%xmm0, %%xmm2 ;\n" + "pxor %%xmm1, %%xmm3 ;\n" + + /* store ysubx */ + "movq $0x7ffffffffffff, %%rax ;\n" + "movd %%xmm0, %%rcx ;\n" + "movd %%xmm0, %%r8 ;\n" + "movd %%xmm1, %%rsi ;\n" + "pshufd $0xee, %%xmm0, %%xmm0 ;\n" + "pshufd $0xee, %%xmm1, %%xmm1 ;\n" + "movd %%xmm0, %%rdx ;\n" + "movd %%xmm1, %%rdi ;\n" + "shrdq $51, %%rdx, %%r8 ;\n" + "shrdq $38, %%rsi, %%rdx ;\n" + "shrdq $25, %%rdi, %%rsi ;\n" + "shrq $12, %%rdi ;\n" + "andq %%rax, %%rcx ;\n" + "andq %%rax, %%r8 ;\n" + "andq %%rax, %%rdx ;\n" + "andq %%rax, %%rsi ;\n" + "andq %%rax, %%rdi ;\n" + "movq %%rcx, 0(%2) ;\n" + "movq %%r8, 8(%2) ;\n" + "movq %%rdx, 16(%2) ;\n" + "movq %%rsi, 24(%2) ;\n" + "movq %%rdi, 32(%2) ;\n" + + /* store xaddy */ + "movq $0x7ffffffffffff, %%rax ;\n" + "movd %%xmm2, %%rcx ;\n" + "movd %%xmm2, %%r8 ;\n" + "movd %%xmm3, %%rsi ;\n" + "pshufd $0xee, %%xmm2, %%xmm2 ;\n" + "pshufd $0xee, %%xmm3, %%xmm3 ;\n" + "movd %%xmm2, %%rdx ;\n" + "movd %%xmm3, %%rdi ;\n" + "shrdq $51, %%rdx, %%r8 ;\n" + "shrdq $38, %%rsi, %%rdx ;\n" + "shrdq $25, %%rdi, %%rsi ;\n" + "shrq $12, %%rdi ;\n" + "andq %%rax, %%rcx ;\n" + "andq %%rax, %%r8 ;\n" + "andq %%rax, %%rdx ;\n" + "andq %%rax, %%rsi ;\n" + "andq %%rax, %%rdi ;\n" + "movq %%rcx, 40(%2) ;\n" + "movq %%r8, 48(%2) ;\n" + "movq %%rdx, 56(%2) ;\n" + "movq %%rsi, 64(%2) ;\n" + "movq %%rdi, 72(%2) ;\n" + + /* extract t2d */ + "movq $0x7ffffffffffff, %%rax ;\n" + "movd %%xmm4, %%rcx ;\n" + "movd %%xmm4, %%r8 ;\n" + "movd %%xmm5, %%rsi ;\n" + "pshufd $0xee, %%xmm4, %%xmm4 ;\n" + "pshufd $0xee, %%xmm5, %%xmm5 ;\n" + "movd %%xmm4, %%rdx ;\n" + "movd %%xmm5, %%rdi ;\n" + "shrdq $51, %%rdx, %%r8 ;\n" + "shrdq $38, %%rsi, %%rdx ;\n" + "shrdq $25, %%rdi, %%rsi ;\n" + "shrq $12, %%rdi ;\n" + "andq %%rax, %%rcx ;\n" + "andq %%rax, %%r8 ;\n" + "andq %%rax, %%rdx ;\n" + "andq %%rax, %%rsi ;\n" + "andq %%rax, %%rdi ;\n" + + /* conditionally negate t2d */ + "movq %3, %%rax ;\n" + "movq $0xfffffffffffda, %%r9 ;\n" + "movq $0xffffffffffffe, %%r10 ;\n" + "movq %%r10, %%r11 ;\n" + "movq %%r10, %%r12 ;\n" + "movq %%r10, %%r13 ;\n" + "subq %%rcx, %%r9 ;\n" + "subq %%r8, %%r10 ;\n" + "subq %%rdx, %%r11 ;\n" + "subq %%rsi, %%r12 ;\n" + "subq %%rdi, %%r13 ;\n" + "cmpq $1, %%rax ;\n" + "cmove %%r9, %%rcx ;\n" + "cmove %%r10, %%r8 ;\n" + "cmove %%r11, %%rdx ;\n" + "cmove %%r12, %%rsi ;\n" + "cmove %%r13, %%rdi ;\n" + + /* store t2d */ + "movq %%rcx, 80(%2) ;\n" + "movq %%r8, 88(%2) ;\n" + "movq %%rdx, 96(%2) ;\n" + "movq %%rsi, 104(%2) ;\n" + "movq %%rdi, 112(%2) ;\n" + : + : "m"(u), "r"(&table[pos * 8]), "r"(t), "m"(sign) /* %0 = u, %1 = table, %2 = t, %3 = sign */ + : + "%rax", "%rcx", "%rdx", "%rdi", "%rsi", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", + "%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "%xmm6", "%xmm7", "%xmm8", "%xmm9", "%xmm10", "%xmm11", "%xmm14", "%xmm14", + "cc", "memory" + ); +} + +#endif /* defined(ED25519_GCC_64BIT_X86_CHOOSE) */ + |