diff options
| author | Niels Möller <nisse@lysator.liu.se> | 2005-10-13 14:31:01 +0200 |
|---|---|---|
| committer | Niels Möller <nisse@lysator.liu.se> | 2005-10-13 14:31:01 +0200 |
| commit | 51a08ad79dcc95e7892537a33c19328ab68e70c0 (patch) | |
| tree | 8d0e9cb9844d39982ae6221b8f6132368a30cc5d /x86 | |
| parent | 9424472aad912b1cc83af151fc40e01aad33be03 (diff) | |
| download | nettle-51a08ad79dcc95e7892537a33c19328ab68e70c0.tar.gz | |
Don't allocate space for a stack copy of the input.
Rev: src/nettle/x86/md5-compress.asm:1.5
Diffstat (limited to 'x86')
| -rw-r--r-- | x86/md5-compress.asm | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/x86/md5-compress.asm b/x86/md5-compress.asm index a56386a3..58d9b979 100644 --- a/x86/md5-compress.asm +++ b/x86/md5-compress.asm @@ -24,7 +24,6 @@ define(<SC>,<%ecx>) define(<SD>,<%edx>) define(<TMP>,<%ebp>) define(<INPUT>,<%esi>) -C define(<DATA>,<%esp>) C %edi is unused @@ -72,24 +71,25 @@ define(<ROUND>,< .align 16 PROLOGUE(_nettle_md5_compress) C save all registers that need to be saved - - pushl %ebx C 76(%esp) - pushl %ebp C 72(%esp) - pushl %esi C 68(%esp) - pushl %edi C 64(%esp) - subl $64, %esp C %esp = W + C 24(%esp) input + C 20(%esp) state + C 16(%esp) Return address + pushl %ebx C 12(%esp) + pushl %ebp C 8(%esp) + pushl %esi C 4(%esp) + pushl %edi C (%esp) C load the state vector - movl 84(%esp),TMP + movl 20(%esp),TMP movl (TMP), SA movl 4(TMP), SB movl 8(TMP), SC movl 12(TMP), SD - C Pointer to source data. We copy it to aligned storage - C at %esp when we first use it. - movl 88(%esp), INPUT + C Pointer to source data. + C Note that if analigned, we suffer unaligned accesses + movl 24(%esp), INPUT ROUND(<F1>, SA, SB, SC, SD, REF( 0), $0xd76aa478, 7) ROUND(<F1>, SD, SA, SB, SC, REF( 1), $0xe8c7b756, 12) @@ -160,13 +160,12 @@ PROLOGUE(_nettle_md5_compress) ROUND(<F4>, SB, SC, SD, SA, REF( 9), $0xeb86d391, 21) C Update the state vector - movl 84(%esp),TMP + movl 20(%esp),TMP addl SA, (TMP) addl SB, 4(TMP) addl SC, 8(TMP) addl SD, 12(TMP) - addl $64, %esp popl %edi popl %esi popl %ebp |