diff options
Diffstat (limited to 'crypto/bn/asm/alpha.s')
| -rw-r--r-- | crypto/bn/asm/alpha.s | 56 |
1 files changed, 45 insertions, 11 deletions
diff --git a/crypto/bn/asm/alpha.s b/crypto/bn/asm/alpha.s index d56f715ecd..1d17b1d619 100644 --- a/crypto/bn/asm/alpha.s +++ b/crypto/bn/asm/alpha.s @@ -3,16 +3,15 @@ # Thanks to tzeruch@ceddec.com for sending me the gcc output for # bn_div64. .file 1 "bn_mulw.c" - .version "01.01" .set noat gcc2_compiled.: __gnu_compiled_c: .text .align 3 - .globl bn_mul_add_word - .ent bn_mul_add_word -bn_mul_add_word: -bn_mul_add_word..ng: + .globl bn_mul_add_words + .ent bn_mul_add_words +bn_mul_add_words: +bn_mul_add_words..ng: .frame $30,0,$26,0 .prologue 0 subq $18,2,$25 # num=-2 @@ -74,12 +73,12 @@ $42: .align 4 $43: ret $31,($26),1 - .end bn_mul_add_word + .end bn_mul_add_words .align 3 - .globl bn_mul_word - .ent bn_mul_word -bn_mul_word: -bn_mul_word..ng: + .globl bn_mul_words + .ent bn_mul_words +bn_mul_words: +bn_mul_words..ng: .frame $30,0,$26,0 .prologue 0 subq $18,2,$25 # num=-2 @@ -125,7 +124,7 @@ $242: stq $1,0($16) $243: ret $31,($26),1 - .end bn_mul_word + .end bn_mul_words .align 3 .globl bn_sqr_words .ent bn_sqr_words @@ -173,6 +172,41 @@ $443: ret $31,($26),1 .end bn_sqr_words + .align 3 + .globl bn_add_words + .ent bn_add_words +bn_add_words: +bn_add_words..ng: + .frame $30,0,$26,0 + .prologue 0 + + bis $31,$31,$8 # carry = 0 + ble $19,$900 +$901: + ldq $0,0($17) # a[0] + ldq $1,0($18) # a[1] + + addq $0,$1,$3 # c=a+b; + addq $17,8,$17 # a++ + + cmpult $3,$1,$7 # did we overflow? + addq $18,8,$18 # b++ + + addq $8,$3,$3 # c+=carry + + cmpult $3,$8,$8 # did we overflow? + stq $3,($16) # r[0]=c + + addq $7,$8,$8 # add into overflow + subq $19,1,$19 # loop-- + + addq $16,8,$16 # r++ + bgt $19,$901 +$900: + bis $8,$8,$0 # return carry + ret $31,($26),1 + .end bn_add_words + # # What follows was taken directly from the C compiler with a few # hacks to redo the lables. |