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lwz $acc10,`2048+64`($Tbl0)
lbzx $acc00,$Tbl2,$acc00
lwz $acc11,`2048+96`($Tbl0)
lbzx $acc01,$Tbl2,$acc01
lwz $acc12,`2048+128`($Tbl0)
rlwinm $acc06,$s1,`32-16`,24,31
lwz $acc13,`2048+160`($Tbl0)
rlwinm $acc07,$s2,`32-16`,24,31
lwz $acc14,`2048+192`($Tbl0)
rlwinm $acc08,$s2,`32-8`,24,31
lwz $acc15,`2048+224`($Tbl0)
rlwinm $acc09,$s3,`32-8`,24,31
lbzx $acc02,$Tbl2,$acc02
rlwinm $acc10,$s0,`32-8`,24,31
lbzx $acc03,$Tbl2,$acc03
rlwinm $acc11,$s1,`32-8`,24,31
lbzx $acc04,$Tbl2,$acc04
rlwinm $acc12,$s1,`0`,24,31
lbzx $acc05,$Tbl2,$acc05
rlwinm $acc13,$s2,`0`,24,31
lbzx $acc06,$Tbl2,$acc06
rlwinm $acc14,$s3,`0`,24,31
lbzx $acc07,$Tbl2,$acc07
rlwinm $acc15,$s0,`0`,24,31
lbzx $acc08,$Tbl2,$acc08
rlwinm $s0,$acc00,24,0,7
lbzx $acc09,$Tbl2,$acc09
rlwinm $s1,$acc01,24,0,7
lbzx $acc10,$Tbl2,$acc10
rlwinm $s2,$acc02,24,0,7
lbzx $acc11,$Tbl2,$acc11
rlwinm $s3,$acc03,24,0,7
lbzx $acc12,$Tbl2,$acc12
rlwimi $s0,$acc04,16,8,15
lbzx $acc13,$Tbl2,$acc13
rlwimi $s1,$acc05,16,8,15
lbzx $acc14,$Tbl2,$acc14
rlwimi $s2,$acc06,16,8,15
lbzx $acc15,$Tbl2,$acc15
rlwimi $s3,$acc07,16,8,15
rlwimi $s0,$acc08,8,16,23
rlwimi $s1,$acc09,8,16,23
rlwimi $s2,$acc10,8,16,23
rlwimi $s3,$acc11,8,16,23
or $s0,$s0,$acc12
or $s1,$s1,$acc13
or $s2,$s2,$acc14
or $s3,$s3,$acc15
xor $s0,$s0,$t0
xor $s1,$s1,$t1
xor $s2,$s2,$t2
xor $s3,$s3,$t3
blr
.long 0
.byte 0,12,0x14,0,0,0,0,0
.align 4
Lppc_AES_decrypt_compact:
lwz $acc00,240($key)
addi $Tbl1,$Tbl0,2048
lwz $t0,0($key)
lis $mask80,0x8080
lwz $t1,4($key)
lis $mask1b,0x1b1b
lwz $t2,8($key)
ori $mask80,$mask80,0x8080
lwz $t3,12($key)
ori $mask1b,$mask1b,0x1b1b
addi $key,$key,16
___
$code.=<<___ if ($SIZE_T==8);
insrdi $mask80,$mask80,32,0
insrdi $mask1b,$mask1b,32,0
___
$code.=<<___;
mtctr $acc00
.align 4
Ldec_compact_loop:
xor $s0,$s0,$t0
xor $s1,$s1,$t1
rlwinm $acc00,$s0,`32-24`,24,31
xor $s2,$s2,$t2
rlwinm $acc01,$s1,`32-24`,24,31
xor $s3,$s3,$t3
rlwinm $acc02,$s2,`32-24`,24,31
rlwinm $acc03,$s3,`32-24`,24,31
rlwinm $acc04,$s3,`32-16`,24,31
rlwinm $acc05,$s0,`32-16`,24,31
rlwinm $acc06,$s1,`32-16`,24,31
rlwinm $acc07,$s2,`32-16`,24,31
lbzx $acc00,$Tbl1,$acc00
rlwinm $acc08,$s2,`32-8`,24,31
lbzx $acc01,$Tbl1,$acc01
rlwinm $acc09,$s3,`32-8`,24,31
lbzx $acc02,$Tbl1,$acc02
rlwinm $acc10,$s0,`32-8`,24,31
lbzx $acc03,$Tbl1,$acc03
rlwinm $acc11,$s1,`32-8`,24,31
lbzx $acc04,$Tbl1,$acc04
rlwinm $acc12,$s1,`0`,24,31
lbzx $acc05,$Tbl1,$acc05
rlwinm $acc13,$s2,`0`,24,31
lbzx $acc06,$Tbl1,$acc06
rlwinm $acc14,$s3,`0`,24,31
lbzx $acc07,$Tbl1,$acc07
rlwinm $acc15,$s0,`0`,24,31
lbzx $acc08,$Tbl1,$acc08
rlwinm $s0,$acc00,24,0,7
lbzx $acc09,$Tbl1,$acc09
rlwinm $s1,$acc01,24,0,7
lbzx $acc10,$Tbl1,$acc10
rlwinm $s2,$acc02,24,0,7
lbzx $acc11,$Tbl1,$acc11
rlwinm $s3,$acc03,24,0,7
lbzx $acc12,$Tbl1,$acc12
rlwimi $s0,$acc04,16,8,15
lbzx $acc13,$Tbl1,$acc13
rlwimi $s1,$acc05,16,8,15
lbzx $acc14,$Tbl1,$acc14
rlwimi $s2,$acc06,16,8,15
lbzx $acc15,$Tbl1,$acc15
rlwimi $s3,$acc07,16,8,15
rlwimi $s0,$acc08,8,16,23
rlwimi $s1,$acc09,8,16,23
rlwimi $s2,$acc10,8,16,23
rlwimi $s3,$acc11,8,16,23
lwz $t0,0($key)
or $s0,$s0,$acc12
lwz $t1,4($key)
or $s1,$s1,$acc13
lwz $t2,8($key)
or $s2,$s2,$acc14
lwz $t3,12($key)
or $s3,$s3,$acc15
addi $key,$key,16
bdz Ldec_compact_done
___
$code.=<<___ if ($SIZE_T==8);
# vectorized permutation improves decrypt performance by 10%
insrdi $s0,$s1,32,0
insrdi $s2,$s3,32,0
and $acc00,$s0,$mask80 # r1=r0&0x80808080
and $acc02,$s2,$mask80
srdi $acc04,$acc00,7 # r1>>7
srdi $acc06,$acc02,7
andc $acc08,$s0,$mask80 # r0&0x7f7f7f7f
andc $acc10,$s2,$mask80
sub $acc00,$acc00,$acc04 # r1-(r1>>7)
sub $acc02,$acc02,$acc06
add $acc08,$acc08,$acc08 # (r0&0x7f7f7f7f)<<1
add $acc10,$acc10,$acc10
and $acc00,$acc00,$mask1b # (r1-(r1>>7))&0x1b1b1b1b
and $acc02,$acc02,$mask1b
xor $acc00,$acc00,$acc08 # r2
xor $acc02,$acc02,$acc10
and $acc04,$acc00,$mask80 # r1=r2&0x80808080
and $acc06,$acc02,$mask80
srdi $acc08,$acc04,7 # r1>>7
srdi $acc10,$acc06,7
andc $acc12,$acc00,$mask80 # r2&0x7f7f7f7f
andc $acc14,$acc02,$mask80
sub $acc04,$acc04,$acc08 # r1-(r1>>7)
sub $acc06,$acc06,$acc10
add $acc12,$acc12,$acc12 # (r2&0x7f7f7f7f)<<1
add $acc14,$acc14,$acc14
and $acc04,$acc04,$mask1b # (r1-(r1>>7))&0x1b1b1b1b
and $acc06,$acc06,$mask1b
xor $acc04,$acc04,$acc12 # r4
xor $acc06,$acc06,$acc14
and $acc08,$acc04,$mask80 # r1=r4&0x80808080
and $acc10,$acc06,$mask80
srdi $acc12,$acc08,7 # r1>>7
srdi $acc14,$acc10,7
sub $acc08,$acc08,$acc12 # r1-(r1>>7)
sub $acc10,$acc10,$acc14
andc $acc12,$acc04,$mask80 # r4&0x7f7f7f7f
andc $acc14,$acc06,$mask80
add $acc12,$acc12,$acc12 # (r4&0x7f7f7f7f)<<1
add $acc14,$acc14,$acc14
and $acc08,$acc08,$mask1b # (r1-(r1>>7))&0x1b1b1b1b
and $acc10,$acc10,$mask1b
xor $acc08,$acc08,$acc12 # r8
xor $acc10,$acc10,$acc14
xor $acc00,$acc00,$s0 # r2^r0
xor $acc02,$acc02,$s2
xor $acc04,$acc04,$s0 # r4^r0
xor $acc06,$acc06,$s2
extrdi $acc01,$acc00,32,0
extrdi $acc03,$acc02,32,0
extrdi $acc05,$acc04,32,0
extrdi $acc07,$acc06,32,0
extrdi $acc09,$acc08,32,0
extrdi $acc11,$acc10,32,0
___
$code.=<<___ if ($SIZE_T==4);
and $acc00,$s0,$mask80 # r1=r0&0x80808080
and $acc01,$s1,$mask80
and $acc02,$s2,$mask80
and $acc03,$s3,$mask80
srwi $acc04,$acc00,7 # r1>>7
andc $acc08,$s0,$mask80 # r0&0x7f7f7f7f
srwi $acc05,$acc01,7
andc $acc09,$s1,$mask80
srwi $acc06,$acc02,7
andc $acc10,$s2,$mask80
srwi $acc07,$acc03,7
andc $acc11,$s3,$mask80
sub $acc00,$acc00,$acc04 # r1-(r1>>7)
sub $acc01,$acc01,$acc05
sub $acc02,$acc02,$acc06
sub $acc03,$acc03,$acc07
add $acc08,$acc08,$acc08 # (r0&0x7f7f7f7f)<<1
add $acc09,$acc09,$acc09
add $acc10,$acc10,$acc10
add $acc11,$acc11,$acc11
and $acc00,$acc00,$mask1b # (r1-(r1>>7))&0x1b1b1b1b
and $acc01,$acc01,$mask1b
and $acc02,$acc02,$mask1b
and $acc03,$acc03,$mask1b
xor $acc00,$acc00,$acc08 # r2
xor $acc01,$acc01,$acc09
xor $acc02,$acc02,$acc10
xor $acc03,$acc03,$acc11
and $acc04,$acc00,$mask80 # r1=r2&0x80808080
and $acc05,$acc01,$mask80
and $acc06,$acc02,$mask80
and $acc07,$acc03,$mask80
srwi $acc08,$acc04,7 # r1>>7
andc $acc12,$acc00,$mask80 # r2&0x7f7f7f7f
srwi $acc09,$acc05,7
andc $acc13,$acc01,$mask80
srwi $acc10,$acc06,7
andc $acc14,$acc02,$mask80
srwi $acc11,$acc07,7
andc $acc15,$acc03,$mask80
sub $acc04,$acc04,$acc08 # r1-(r1>>7)
sub $acc05,$acc05,$acc09
sub $acc06,$acc06,$acc10
sub $acc07,$acc07,$acc11
add $acc12,$acc12,$acc12 # (r2&0x7f7f7f7f)<<1
add $acc13,$acc13,$acc13
add $acc14,$acc14,$acc14
add $acc15,$acc15,$acc15
and $acc04,$acc04,$mask1b # (r1-(r1>>7))&0x1b1b1b1b
and $acc05,$acc05,$mask1b
and $acc06,$acc06,$mask1b
and $acc07,$acc07,$mask1b
xor $acc04,$acc04,$acc12 # r4
xor $acc05,$acc05,$acc13
xor $acc06,$acc06,$acc14
xor $acc07,$acc07,$acc15
and $acc08,$acc04,$mask80 # r1=r4&0x80808080
and $acc09,$acc05,$mask80
srwi $acc12,$acc08,7 # r1>>7
and $acc10,$acc06,$mask80
srwi $acc13,$acc09,7
and $acc11,$acc07,$mask80
srwi $acc14,$acc10,7
sub $acc08,$acc08,$acc12 # r1-(r1>>7)
srwi $acc15,$acc11,7
sub $acc09,$acc09,$acc13
sub $acc10,$acc10,$acc14
sub $acc11,$acc11,$acc15
andc $acc12,$acc04,$mask80 # r4&0x7f7f7f7f
andc $acc13,$acc05,$mask80
andc $acc14,$acc06,$mask80
andc $acc15,$acc07,$mask80
add $acc12,$acc12,$acc12 # (r4&0x7f7f7f7f)<<1
add $acc13,$acc13,$acc13
add $acc14,$acc14,$acc14
add $acc15,$acc15,$acc15
and $acc08,$acc08,$mask1b # (r1-(r1>>7))&0x1b1b1b1b
and $acc09,$acc09,$mask1b
and $acc10,$acc10,$mask1b
and $acc11,$acc11,$mask1b
xor $acc08,$acc08,$acc12 # r8
xor $acc09,$acc09,$acc13
xor $acc10,$acc10,$acc14
xor $acc11,$acc11,$acc15
xor $acc00,$acc00,$s0 # r2^r0
xor $acc01,$acc01,$s1
xor $acc02,$acc02,$s2
xor $acc03,$acc03,$s3
xor $acc04,$acc04,$s0 # r4^r0
xor $acc05,$acc05,$s1
xor $acc06,$acc06,$s2
xor $acc07,$acc07,$s3
___
$code.=<<___;
rotrwi $s0,$s0,8 # = ROTATE(r0,8)
rotrwi $s1,$s1,8
xor $s0,$s0,$acc00 # ^= r2^r0
rotrwi $s2,$s2,8
xor $s1,$s1,$acc01
rotrwi $s3,$s3,8
xor $s2,$s2,$acc02
xor $s3,$s3,$acc03
xor $acc00,$acc00,$acc08
xor $acc01,$acc01,$acc09
xor $acc02,$acc02,$acc10
xor $acc03,$acc03,$acc11
xor $s0,$s0,$acc04 # ^= r4^r0
rotrwi $acc00,$acc00,24
xor $s1,$s1,$acc05
rotrwi $acc01,$acc01,24
xor $s2,$s2,$acc06
rotrwi $acc02,$acc02,24
xor $s3,$s3,$acc07
rotrwi $acc03,$acc03,24
xor $acc04,$acc04,$acc08
xor $acc05,$acc05,$acc09
xor $acc06,$acc06,$acc10
xor $acc07,$acc07,$acc11
xor $s0,$s0,$acc08 # ^= r8 [^((r4^r0)^(r2^r0)=r4^r2)]
rotrwi $acc04,$acc04,16
xor $s1,$s1,$acc09
rotrwi $acc05,$acc05,16
xor $s2,$s2,$acc10
rotrwi $acc06,$acc06,16
xor $s3,$s3,$acc11
rotrwi $acc07,$acc07,16
xor $s0,$s0,$acc00 # ^= ROTATE(r8^r2^r0,24)
rotrwi $acc08,$acc08,8
xor $s1,$s1,$acc01
rotrwi $acc09,$acc09,8
xor $s2,$s2,$acc02
rotrwi $acc10,$acc10,8
xor $s3,$s3,$acc03
rotrwi $acc11,$acc11,8
xor $s0,$s0,$acc04 # ^= ROTATE(r8^r4^r0,16)
xor $s1,$s1,$acc05
xor $s2,$s2,$acc06
xor $s3,$s3,$acc07
xor $s0,$s0,$acc08 # ^= ROTATE(r8,8)
xor $s1,$s1,$acc09
xor $s2,$s2,$acc10
xor $s3,$s3,$acc11
b Ldec_compact_loop
.align 4
Ldec_compact_done:
xor $s0,$s0,$t0
xor $s1,$s1,$t1
xor $s2,$s2,$t2
xor $s3,$s3,$t3
blr
.long 0
.byte 0,12,0x14,0,0,0,0,0
.asciz "AES for PPC, CRYPTOGAMS by <appro\@openssl.org>"
.align 7
___
$code =~ s/\`([^\`]*)\`/eval $1/gem;
print $code;
close STDOUT;