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| author | Niels Möller <nisse@lysator.liu.se> | 2020-10-30 20:40:36 +0100 |
|---|---|---|
| committer | Niels Möller <nisse@lysator.liu.se> | 2020-10-30 20:40:36 +0100 |
| commit | 82dc13c952067e1d6d0af818bf5cc76f558da73b (patch) | |
| tree | a69209d3c2e31e6c43e2fc98805b163f9291eff9 /x86_64/ecc-secp224r1-modp.asm | |
| parent | f4f5625edb7d899972431b838ac19ced9288f68a (diff) | |
| download | nettle-82dc13c952067e1d6d0af818bf5cc76f558da73b.tar.gz | |
Update x86_64 assembly mod functions
Diffstat (limited to 'x86_64/ecc-secp224r1-modp.asm')
| -rw-r--r-- | x86_64/ecc-secp224r1-modp.asm | 32 |
1 files changed, 18 insertions, 14 deletions
diff --git a/x86_64/ecc-secp224r1-modp.asm b/x86_64/ecc-secp224r1-modp.asm index 34ab52f4..4a667a87 100644 --- a/x86_64/ecc-secp224r1-modp.asm +++ b/x86_64/ecc-secp224r1-modp.asm @@ -35,20 +35,23 @@ ifelse(` GMP_NUMB_BITS(64) define(`RP', `%rsi') -define(`T0', `%rdi') C Overlaps unused modulo input +define(`XP', `%rdx') +define(`T0', `%rdi') C Overlaps unused modulo input define(`T1', `%rcx') define(`H0', `%rax') -define(`H1', `%rdx') -define(`H2', `%r8') -define(`F0', `%r9') +define(`H1', `%r8') +define(`H2', `%r9') +define(`F0', `%rsi') C Overlaps RP define(`F1', `%r10') define(`F2', `%r11') C ecc_secp224r1_modp (const struct ecc_modulo *m, mp_limb_t *rp) PROLOGUE(_nettle_ecc_secp224r1_modp) - W64_ENTRY(2, 0) - mov 48(RP), H0 - mov 56(RP), H1 + W64_ENTRY(3, 0) + push RP + + mov 48(XP), H0 + mov 56(XP), H1 C Set (F2,F1,F0) <-- (H1,H0) << 32 mov H0, F0 mov H0, F1 @@ -61,15 +64,15 @@ PROLOGUE(_nettle_ecc_secp224r1_modp) or T0, F1 xor H2, H2 - mov 16(RP), T0 - mov 24(RP), T1 + mov 16(XP), T0 + mov 24(XP), T1 sub F0, T0 sbb F1, T1 sbb F2, H0 sbb $0, H1 C No further borrow - adc 32(RP), H0 - adc 40(RP), H1 + adc 32(XP), H0 + adc 40(XP), H1 adc $0, H2 C Set (F2,F1,F0) <-- (H2,H1,H0) << 32 @@ -92,8 +95,8 @@ PROLOGUE(_nettle_ecc_secp224r1_modp) or T0, F1 or T1, F2 - mov (RP), T0 - mov 8(RP), T1 + mov (XP), T0 + mov 8(XP), T1 sub F0, T0 sbb F1, T1 sbb F2, H0 @@ -121,11 +124,12 @@ PROLOGUE(_nettle_ecc_secp224r1_modp) adc F2, H0 adc $0, H1 + pop RP mov T0, (RP) mov T1, 8(RP) mov H0, 16(RP) mov H1, 24(RP) - W64_EXIT(2, 0) + W64_EXIT(3, 0) ret EPILOGUE(_nettle_ecc_secp224r1_modp) |