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More rotate optimizations for SHA-256.

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This commit is contained in:
Stephen Heumann 2017-07-03 15:45:18 -05:00
parent 6891b77fbc
commit 011628d3ce
1 changed files with 12 additions and 3 deletions
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sha256.macros
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@ -362,8 +362,8 @@
sta temp1+2 sta temp1+2
lda &e+1 lda &e+1
sta temp1 sta temp1
ROTL4CONT temp1,2 ROTR4MOVE temp2,temp1,3
ROTR4MOVE temp2,temp1,5 ROTL4 temp1,2
lda &e-1 lda &e-1
and #$FF00 and #$FF00
sta temp3 sta temp3
@ -437,7 +437,16 @@
lda &a+2 lda &a+2
sta temp3 sta temp3
ROTL4CONT temp3,3 ROTL4CONT temp3,3
ROTR4MOVE temp4,&a,22 lda &a+1
sta temp4+2
lda &a-1
and #$FF00
sta temp4
lda &a+3
and #$00FF
ora temp4
sta temp4
ROTL4CONT temp4,2
lda temp2 lda temp2
eor temp3 eor temp3
eor temp4 eor temp4