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#define BORINGSSL_PREFIX CCryptoBoringSSL
#if defined(__aarch64__) && defined(__linux__)
// This file is generated from a similarly-named Perl script in the BoringSSL
// source tree. Do not edit by hand.
#include <CCryptoBoringSSL_asm_base.h>
#if !defined(OPENSSL_NO_ASM) && defined(OPENSSL_AARCH64) && defined(__ELF__)
#include <CCryptoBoringSSL_arm_arch.h>
.text
// BN_ULONG bn_add_words(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
// size_t num);
.type bn_add_words, %function
.globl bn_add_words
.hidden bn_add_words
.align 4
bn_add_words:
AARCH64_VALID_CALL_TARGET
# Clear the carry flag.
cmn xzr, xzr
# aarch64 can load two registers at a time, so we do two loop iterations at
# at a time. Split x3 = 2 * x8 + x3. This allows loop
# operations to use CBNZ without clobbering the carry flag.
lsr x8, x3, #1
and x3, x3, #1
cbz x8, .Ladd_tail
.Ladd_loop:
ldp x4, x5, [x1], #16
ldp x6, x7, [x2], #16
sub x8, x8, #1
adcs x4, x4, x6
adcs x5, x5, x7
stp x4, x5, [x0], #16
cbnz x8, .Ladd_loop
.Ladd_tail:
cbz x3, .Ladd_exit
ldr x4, [x1], #8
ldr x6, [x2], #8
adcs x4, x4, x6
str x4, [x0], #8
.Ladd_exit:
cset x0, cs
ret
.size bn_add_words,.-bn_add_words
// BN_ULONG bn_sub_words(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
// size_t num);
.type bn_sub_words, %function
.globl bn_sub_words
.hidden bn_sub_words
.align 4
bn_sub_words:
AARCH64_VALID_CALL_TARGET
# Set the carry flag. Arm's borrow bit is flipped from the carry flag,
# so we want C = 1 here.
cmp xzr, xzr
# aarch64 can load two registers at a time, so we do two loop iterations at
# at a time. Split x3 = 2 * x8 + x3. This allows loop
# operations to use CBNZ without clobbering the carry flag.
lsr x8, x3, #1
and x3, x3, #1
cbz x8, .Lsub_tail
.Lsub_loop:
ldp x4, x5, [x1], #16
ldp x6, x7, [x2], #16
sub x8, x8, #1
sbcs x4, x4, x6
sbcs x5, x5, x7
stp x4, x5, [x0], #16
cbnz x8, .Lsub_loop
.Lsub_tail:
cbz x3, .Lsub_exit
ldr x4, [x1], #8
ldr x6, [x2], #8
sbcs x4, x4, x6
str x4, [x0], #8
.Lsub_exit:
cset x0, cc
ret
.size bn_sub_words,.-bn_sub_words
#endif // !OPENSSL_NO_ASM && defined(OPENSSL_AARCH64) && defined(__ELF__)
#endif // defined(__aarch64__) && defined(__linux__)
#if defined(__linux__) && defined(__ELF__)
.section .note.GNU-stack,"",%progbits
#endif
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