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! des_enc.m4
! des_enc.S (generated from des_enc.m4)
!
! UltraSPARC assembler version of the LibDES/SSLeay/OpenSSL des_enc.c file.
!
! Version 1.0. 32-bit version.
!
! June 8, 2000.
!
! Version 2.0. 32/64-bit, PIC-ification, blended CPU adaptation
! by Andy Polyakov.
!
! January 1, 2003.
!
! Assembler version: Copyright Svend Olaf Mikkelsen.
!
! Original C code: Copyright Eric A. Young.
!
! This code can be freely used by LibDES/SSLeay/OpenSSL users.
!
! The LibDES/SSLeay/OpenSSL copyright notices must be respected.
!
! This version can be redistributed.
!
! To expand the m4 macros: m4 -B 8192 des_enc.m4 > des_enc.S
!
! Global registers 1 to 5 are used. This is the same as done by the
! cc compiler. The UltraSPARC load/store little endian feature is used.
!
! Instruction grouping often refers to one CPU cycle.
!
! Assemble through gcc: gcc -c -mcpu=ultrasparc -o des_enc.o des_enc.S
!
! Assemble through cc: cc -c -xarch=v8plusa -o des_enc.o des_enc.S
!
! Performance improvement according to './apps/openssl speed des'
!
! 32-bit build:
! 23% faster than cc-5.2 -xarch=v8plus -xO5
! 115% faster than gcc-3.2.1 -m32 -mcpu=ultrasparc -O5
! 64-bit build:
! 50% faster than cc-5.2 -xarch=v9 -xO5
! 100% faster than gcc-3.2.1 -m64 -mcpu=ultrasparc -O5
!
.ident "des_enc.m4 2.1"
.file "des_enc-sparc.S"
#if defined(__SUNPRO_C) && defined(__sparcv9)
# define ABI64 /* They've said -xarch=v9 at command line */
#elif defined(__GNUC__) && defined(__arch64__)
# define ABI64 /* They've said -m64 at command line */
#endif
#ifdef ABI64
.register %g2,#scratch
.register %g3,#scratch
# define FRAME -192
# define BIAS 2047
# define LDPTR ldx
# define STPTR stx
# define ARG0 128
# define ARGSZ 8
# ifndef OPENSSL_SYSNAME_ULTRASPARC
# define OPENSSL_SYSNAME_ULTRASPARC
# endif
#else
# define FRAME -96
# define BIAS 0
# define LDPTR ld
# define STPTR st
# define ARG0 68
# define ARGSZ 4
#endif
#define LOOPS 7
#define global0 %g0
#define global1 %g1
#define global2 %g2
#define global3 %g3
#define global4 %g4
#define global5 %g5
#define local0 %l0
#define local1 %l1
#define local2 %l2
#define local3 %l3
#define local4 %l4
#define local5 %l5
#define local7 %l6
#define local6 %l7
#define in0 %i0
#define in1 %i1
#define in2 %i2
#define in3 %i3
#define in4 %i4
#define in5 %i5
#define in6 %i6
#define in7 %i7
#define out0 %o0
#define out1 %o1
#define out2 %o2
#define out3 %o3
#define out4 %o4
#define out5 %o5
#define out6 %o6
#define out7 %o7
#define stub stb
changequote({,})
! Macro definitions:
! {ip_macro}
!
! The logic used in initial and final permutations is the same as in
! the C code. The permutations are done with a clever shift, xor, and
! technique.
!
! The macro also loads address sbox 1 to 5 to global 1 to 5, address
! sbox 6 to local6, and addres sbox 8 to out3.
!
! Rotates the halfs 3 left to bring the sbox bits in convenient positions.
!
! Loads key first round from address in parameter 5 to out0, out1.
!
! After the the original LibDES initial permutation, the resulting left
! is in the variable initially used for right and vice versa. The macro
! implements the possibility to keep the halfs in the original registers.
!
! parameter 1 left
! parameter 2 right
! parameter 3 result left (modify in first round)
! parameter 4 result right (use in first round)
! parameter 5 key address
! parameter 6 1/2 for include encryption/decryption
! parameter 7 1 for move in1 to in3
! parameter 8 1 for move in3 to in4, 2 for move in4 to in3
! parameter 9 1 for load ks3 and ks2 to in4 and in3
define(ip_macro, {
! {ip_macro}
! $1 $2 $4 $3 $5 $6 $7 $8 $9
ld [out2+256], local1
srl $2, 4, local4
xor local4, $1, local4
ifelse($7,1,{mov in1, in3},{nop})
ld [out2+260], local2
and local4, local1, local4
ifelse($8,1,{mov in3, in4},{})
ifelse($8,2,{mov in4, in3},{})
ld [out2+280], out4 ! loop counter
sll local4, 4, local1
xor $1, local4, $1
ld [out2+264], local3
srl $1, 16, local4
xor $2, local1, $2
ifelse($9,1,{LDPTR KS3, in4},{})
xor local4, $2, local4
nop !sethi %hi(DES_SPtrans), global1 ! sbox addr
ifelse($9,1,{LDPTR KS2, in3},{})
and local4, local2, local4
nop !or global1, %lo(DES_SPtrans), global1 ! sbox addr
sll local4, 16, local1
xor $2, local4, $2
srl $2, 2, local4
xor $1, local1, $1
sethi %hi(16711680), local5
xor local4, $1, local4
and local4, local3, local4
or local5, 255, local5
sll local4, 2, local2
xor $1, local4, $1
srl $1, 8, local4
xor $2, local2, $2
xor local4, $2, local4
add global1, 768, global4
and local4, local5, local4
add global1, 1024, global5
ld [out2+272], local7
sll local4, 8, local1
xor $2, local4, $2
srl $2, 1, local4
xor $1, local1, $1
ld [$5], out0 ! key 7531
xor local4, $1, local4
add global1, 256, global2
ld [$5+4], out1 ! key 8642
and local4, local7, local4
add global1, 512, global3
sll local4, 1, local1
xor $1, local4, $1
sll $1, 3, local3
xor $2, local1, $2
sll $2, 3, local2
add global1, 1280, local6 ! address sbox 8
srl $1, 29, local4
add global1, 1792, out3 ! address sbox 8
srl $2, 29, local1
or local4, local3, $4
or local2, local1, $3
ifelse($6, 1, {
ld [out2+284], local5 ! 0x0000FC00 used in the rounds
or local2, local1, $3
xor $4, out0, local1
call .des_enc.1
and local1, 252, local1
},{})
ifelse($6, 2, {
ld [out2+284], local5 ! 0x0000FC00 used in the rounds
or local2, local1, $3
xor $4, out0, local1
call .des_dec.1
and local1, 252, local1
},{})
})
! {rounds_macro}
!
! The logic used in the DES rounds is the same as in the C code,
! except that calculations for sbox 1 and sbox 5 begin before
! the previous round is finished.
!
! In each round one half (work) is modified based on key and the
! other half (use).
!
! In this version we do two rounds in a loop repeated 7 times
! and two rounds seperately.
!
! One half has the bits for the sboxes in the following positions:
!
! 777777xx555555xx333333xx111111xx
!
! 88xx666666xx444444xx222222xx8888
!
! The bits for each sbox are xor-ed with the key bits for that box.
! The above xx bits are cleared, and the result used for lookup in
! the sbox table. Each sbox entry contains the 4 output bits permuted
! into 32 bits according to the P permutation.
!
! In the description of DES, left and right are switched after
! each round, except after last round. In this code the original
! left and right are kept in the same register in all rounds, meaning
! that after the 16 rounds the result for right is in the register
! originally used for left.
!
! parameter 1 first work (left in first round)
! parameter 2 first use (right in first round)
! parameter 3 enc/dec 1/-1
! parameter 4 loop label
! parameter 5 key address register
! parameter 6 optional address for key next encryption/decryption
! parameter 7 not empty for include retl
!
! also compares in2 to 8
define(rounds_macro, {
! {rounds_macro}
! $1 $2 $3 $4 $5 $6 $7 $8 $9
xor $2, out0, local1
ld [out2+284], local5 ! 0x0000FC00
ba $4
and local1, 252, local1
.align 32
$4:
! local6 is address sbox 6
! out3 is address sbox 8
! out4 is loop counter
ld [global1+local1], local1
xor $2, out1, out1 ! 8642
xor $2, out0, out0 ! 7531
! fmovs %f0, %f0 ! fxor used for alignment
srl out1, 4, local0 ! rotate 4 right
and out0, local5, local3 ! 3
! fmovs %f0, %f0
ld [$5+$3*8], local7 ! key 7531 next round
srl local3, 8, local3 ! 3
and local0, 252, local2 ! 2
! fmovs %f0, %f0
ld [global3+local3],local3 ! 3
sll out1, 28, out1 ! rotate
xor $1, local1, $1 ! 1 finished, local1 now sbox 7
ld [global2+local2], local2 ! 2
srl out0, 24, local1 ! 7
or out1, local0, out1 ! rotate
ldub [out2+local1], local1 ! 7 (and 0xFC)
srl out1, 24, local0 ! 8
and out1, local5, local4 ! 4
ldub [out2+local0], local0 ! 8 (and 0xFC)
srl local4, 8, local4 ! 4
xor $1, local2, $1 ! 2 finished local2 now sbox 6
ld [global4+local4],local4 ! 4
srl out1, 16, local2 ! 6
xor $1, local3, $1 ! 3 finished local3 now sbox 5
ld [out3+local0],local0 ! 8
and local2, 252, local2 ! 6
add global1, 1536, local5 ! address sbox 7
ld [local6+local2], local2 ! 6
srl out0, 16, local3 ! 5
xor $1, local4, $1 ! 4 finished
ld [local5+local1],local1 ! 7
and local3, 252, local3 ! 5
xor $1, local0, $1 ! 8 finished
ld [global5+local3],local3 ! 5
xor $1, local2, $1 ! 6 finished
subcc out4, 1, out4
ld [$5+$3*8+4], out0 ! key 8642 next round
xor $1, local7, local2 ! sbox 5 next round
xor $1, local1, $1 ! 7 finished
srl local2, 16, local2 ! sbox 5 next round
xor $1, local3, $1 ! 5 finished
ld [$5+$3*16+4], out1 ! key 8642 next round again
and local2, 252, local2 ! sbox5 next round
! next round
xor $1, local7, local7 ! 7531
ld [global5+local2], local2 ! 5
srl local7, 24, local3 ! 7
xor $1, out0, out0 ! 8642
ldub [out2+local3], local3 ! 7 (and 0xFC)
srl out0, 4, local0 ! rotate 4 right
and local7, 252, local1 ! 1
sll out0, 28, out0 ! rotate
xor $2, local2, $2 ! 5 finished local2 used
srl local0, 8, local4 ! 4
and local0, 252, local2 ! 2
ld [local5+local3], local3 ! 7
srl local0, 16, local5 ! 6
or out0, local0, out0 ! rotate
ld [global2+local2], local2 ! 2
srl out0, 24, local0
ld [$5+$3*16], out0 ! key 7531 next round
and local4, 252, local4 ! 4
and local5, 252, local5 ! 6
ld [global4+local4], local4 ! 4
xor $2, local3, $2 ! 7 finished local3 used
and local0, 252, local0 ! 8
ld [local6+local5], local5 ! 6
xor $2, local2, $2 ! 2 finished local2 now sbox 3
srl local7, 8, local2 ! 3 start
ld [out3+local0], local0 ! 8
xor $2, local4, $2 ! 4 finished
and local2, 252, local2 ! 3
ld [global1+local1], local1 ! 1
xor $2, local5, $2 ! 6 finished local5 used
ld [global3+local2], local2 ! 3
xor $2, local0, $2 ! 8 finished
add $5, $3*16, $5 ! enc add 8, dec add -8 to key pointer
ld [out2+284], local5 ! 0x0000FC00
xor $2, out0, local4 ! sbox 1 next round
xor $2, local1, $2 ! 1 finished
xor $2, local2, $2 ! 3 finished
#ifdef OPENSSL_SYSNAME_ULTRASPARC
bne,pt %icc, $4
#else
bne $4
#endif
and local4, 252, local1 ! sbox 1 next round
! two rounds more:
ld [global1+local1], local1
xor $2, out1, out1
xor $2, out0, out0
srl out1, 4, local0 ! rotate
and out0, local5, local3
ld [$5+$3*8], local7 ! key 7531
srl local3, 8, local3
and local0, 252, local2
ld [global3+local3],local3
sll out1, 28, out1 ! rotate
xor $1, local1, $1 ! 1 finished, local1 now sbox 7
ld [global2+local2], local2
srl out0, 24, local1
or out1, local0, out1 ! rotate
ldub [out2+local1], local1
srl out1, 24, local0
and out1, local5, local4
ldub [out2+local0], local0
srl local4, 8, local4
xor $1, local2, $1 ! 2 finished local2 now sbox 6
ld [global4+local4],local4
srl out1, 16, local2
xor $1, local3, $1 ! 3 finished local3 now sbox 5
ld [out3+local0],local0
and local2, 252, local2
add global1, 1536, local5 ! address sbox 7
ld [local6+local2], local2
srl out0, 16, local3
xor $1, local4, $1 ! 4 finished
ld [local5+local1],local1
and local3, 252, local3
xor $1, local0, $1
ld [global5+local3],local3
xor $1, local2, $1 ! 6 finished
cmp in2, 8
ifelse($6,{}, {}, {ld [out2+280], out4}) ! loop counter
xor $1, local7, local2 ! sbox 5 next round
xor $1, local1, $1 ! 7 finished
ld [$5+$3*8+4], out0
srl local2, 16, local2 ! sbox 5 next round
xor $1, local3, $1 ! 5 finished
and local2, 252, local2
! next round (two rounds more)
xor $1, local7, local7 ! 7531
ld [global5+local2], local2
srl local7, 24, local3
xor $1, out0, out0 ! 8642
ldub [out2+local3], local3
srl out0, 4, local0 ! rotate
and local7, 252, local1
sll out0, 28, out0 ! rotate
xor $2, local2, $2 ! 5 finished local2 used
srl local0, 8, local4
and local0, 252, local2
ld [local5+local3], local3
srl local0, 16, local5
or out0, local0, out0 ! rotate
ld [global2+local2], local2
srl out0, 24, local0
ifelse($6,{}, {}, {ld [$6], out0}) ! key next encryption/decryption
and local4, 252, local4
and local5, 252, local5
ld [global4+local4], local4
xor $2, local3, $2 ! 7 finished local3 used
and local0, 252, local0
ld [local6+local5], local5
xor $2, local2, $2 ! 2 finished local2 now sbox 3
srl local7, 8, local2 ! 3 start
ld [out3+local0], local0
xor $2, local4, $2
and local2, 252, local2
ld [global1+local1], local1
xor $2, local5, $2 ! 6 finished local5 used
ld [global3+local2], local2
srl $1, 3, local3
xor $2, local0, $2
ifelse($6,{}, {}, {ld [$6+4], out1}) ! key next encryption/decryption
sll $1, 29, local4
xor $2, local1, $2
ifelse($7,{}, {}, {retl})
xor $2, local2, $2
})
! {fp_macro}
!
! parameter 1 right (original left)
! parameter 2 left (original right)
! parameter 3 1 for optional store to [in0]
! parameter 4 1 for load input/output address to local5/7
!
! The final permutation logic switches the halfes, meaning that
! left and right ends up the the registers originally used.
define(fp_macro, {
! {fp_macro}
! $1 $2 $3 $4 $5 $6 $7 $8 $9
! initially undo the rotate 3 left done after initial permutation
! original left is received shifted 3 right and 29 left in local3/4
sll $2, 29, local1
or local3, local4, $1
srl $2, 3, $2
sethi %hi(0x55555555), local2
or $2, local1, $2
or local2, %lo(0x55555555), local2
srl $2, 1, local3
sethi %hi(0x00ff00ff), local1
xor local3, $1, local3
or local1, %lo(0x00ff00ff), local1
and local3, local2, local3
sethi %hi(0x33333333), local4
sll local3, 1, local2
xor $1, local3, $1
srl $1, 8, local3
xor $2, local2, $2
xor local3, $2, local3
or local4, %lo(0x33333333), local4
and local3, local1, local3
sethi %hi(0x0000ffff), local1
sll local3, 8, local2
xor $2, local3, $2
srl $2, 2, local3
xor $1, local2, $1
xor local3, $1, local3
or local1, %lo(0x0000ffff), local1
and local3, local4, local3
sethi %hi(0x0f0f0f0f), local4
sll local3, 2, local2
ifelse($4,1, {LDPTR INPUT, local5})
xor $1, local3, $1
ifelse($4,1, {LDPTR OUTPUT, local7})
srl $1, 16, local3
xor $2, local2, $2
xor local3, $2, local3
or local4, %lo(0x0f0f0f0f), local4
and local3, local1, local3
sll local3, 16, local2
xor $2, local3, local1
srl local1, 4, local3
xor $1, local2, $1
xor local3, $1, local3
and local3, local4, local3
sll local3, 4, local2
xor $1, local3, $1
! optional store:
ifelse($3,1, {st $1, [in0]})
xor local1, local2, $2
ifelse($3,1, {st $2, [in0+4]})
})
! {fp_ip_macro}
!
! Does initial permutation for next block mixed with
! final permutation for current block.
!
! parameter 1 original left
! parameter 2 original right
! parameter 3 left ip
! parameter 4 right ip
! parameter 5 1: load ks1/ks2 to in3/in4, add 120 to in4
! 2: mov in4 to in3
!
! also adds -8 to length in2 and loads loop counter to out4
define(fp_ip_macro, {
! {fp_ip_macro}
! $1 $2 $3 $4 $5 $6 $7 $8 $9
define({temp1},{out4})
define({temp2},{local3})
define({ip1},{local1})
define({ip2},{local2})
define({ip4},{local4})
define({ip5},{local5})
! $1 in local3, local4
ld [out2+256], ip1
sll out5, 29, temp1
or local3, local4, $1
srl out5, 3, $2
ifelse($5,2,{mov in4, in3})
ld [out2+272], ip5
srl $4, 4, local0
or $2, temp1, $2
srl $2, 1, temp1
xor temp1, $1, temp1
and temp1, ip5, temp1
xor local0, $3, local0
sll temp1, 1, temp2
xor $1, temp1, $1
and local0, ip1, local0
add in2, -8, in2
sll local0, 4, local7
xor $3, local0, $3
ld [out2+268], ip4
srl $1, 8, temp1
xor $2, temp2, $2
ld [out2+260], ip2
srl $3, 16, local0
xor $4, local7, $4
xor temp1, $2, temp1
xor local0, $4, local0
and temp1, ip4, temp1
and local0, ip2, local0
sll temp1, 8, temp2
xor $2, temp1, $2
sll local0, 16, local7
xor $4, local0, $4
srl $2, 2, temp1
xor $1, temp2, $1
ld [out2+264], temp2 ! ip3
srl $4, 2, local0
xor $3, local7, $3
xor temp1, $1, temp1
xor local0, $3, local0
and temp1, temp2, temp1
and local0, temp2, local0
sll temp1, 2, temp2
xor $1, temp1, $1
sll local0, 2, local7
xor $3, local0, $3
srl $1, 16, temp1
xor $2, temp2, $2
srl $3, 8, local0
xor $4, local7, $4
xor temp1, $2, temp1
xor local0, $4, local0
and temp1, ip2, temp1
and local0, ip4, local0
sll temp1, 16, temp2
xor $2, temp1, local4
sll local0, 8, local7
xor $4, local0, $4
srl $4, 1, local0
xor $3, local7, $3
srl local4, 4, temp1
xor local0, $3, local0
xor $1, temp2, $1
and local0, ip5, local0
sll local0, 1, local7
xor temp1, $1, temp1
xor $3, local0, $3
xor $4, local7, $4
sll $3, 3, local5
and temp1, ip1, temp1
sll temp1, 4, temp2
xor $1, temp1, $1
ifelse($5,1,{LDPTR KS2, in4})
sll $4, 3, local2
xor local4, temp2, $2
! reload since used as temporar:
ld [out2+280], out4 ! loop counter
srl $3, 29, local0
ifelse($5,1,{add in4, 120, in4})
ifelse($5,1,{LDPTR KS1, in3})
srl $4, 29, local7
or local0, local5, $4
or local2, local7, $3
})
! {load_little_endian}
!
! parameter 1 address
! parameter 2 destination left
! parameter 3 destination right
! parameter 4 temporar
! parameter 5 label
define(load_little_endian, {
! {load_little_endian}
! $1 $2 $3 $4 $5 $6 $7 $8 $9
! first in memory to rightmost in register
#ifdef OPENSSL_SYSNAME_ULTRASPARC
andcc $1, 3, global0
bne,pn %icc, $5
nop
lda [$1] 0x88, $2
add $1, 4, $4
ba,pt %icc, $5a
lda [$4] 0x88, $3
#endif
$5:
ldub [$1+3], $2
ldub [$1+2], $4
sll $2, 8, $2
or $2, $4, $2
ldub [$1+1], $4
sll $2, 8, $2
or $2, $4, $2
ldub [$1+0], $4
sll $2, 8, $2
or $2, $4, $2
ldub [$1+3+4], $3
ldub [$1+2+4], $4
sll $3, 8, $3
or $3, $4, $3
ldub [$1+1+4], $4
sll $3, 8, $3
or $3, $4, $3
ldub [$1+0+4], $4
sll $3, 8, $3
or $3, $4, $3
$5a:
})
! {load_little_endian_inc}
!
! parameter 1 address
! parameter 2 destination left
! parameter 3 destination right
! parameter 4 temporar
! parameter 4 label
!
! adds 8 to address
define(load_little_endian_inc, {
! {load_little_endian_inc}
! $1 $2 $3 $4 $5 $6 $7 $8 $9
! first in memory to rightmost in register
#ifdef OPENSSL_SYSNAME_ULTRASPARC
andcc $1, 3, global0
bne,pn %icc, $5
nop
lda [$1] 0x88, $2
add $1, 4, $1
lda [$1] 0x88, $3
ba,pt %icc, $5a
add $1, 4, $1
#endif
$5:
ldub [$1+3], $2
ldub [$1+2], $4
sll $2, 8, $2
or $2, $4, $2
ldub [$1+1], $4
sll $2, 8, $2
or $2, $4, $2
ldub [$1+0], $4
sll $2, 8, $2
or $2, $4, $2
ldub [$1+3+4], $3
add $1, 8, $1
ldub [$1+2+4-8], $4
sll $3, 8, $3
or $3, $4, $3
ldub [$1+1+4-8], $4
sll $3, 8, $3
or $3, $4, $3
ldub [$1+0+4-8], $4
sll $3, 8, $3
or $3, $4, $3
$5a:
})
! {load_n_bytes}
!
! Loads 1 to 7 bytes little endian
! Remaining bytes are zeroed.
!
! parameter 1 address
! parameter 2 length
! parameter 3 destination register left
! parameter 4 destination register right
! parameter 5 temp
! parameter 6 temp2
! parameter 7 label
! parameter 8 return label
define(load_n_bytes, {
! {load_n_bytes}
! $1 $2 $5 $6 $7 $8 $7 $8 $9
$7.0: call .+8
sll $2, 2, $6
add %o7,$7.jmp.table-$7.0,$5
add $5, $6, $5
mov 0, $4
ld [$5], $5
jmp %o7+$5
mov 0, $3
$7.7:
ldub [$1+6], $5
sll $5, 16, $5
or $3, $5, $3
$7.6:
ldub [$1+5], $5
sll $5, 8, $5
or $3, $5, $3
$7.5:
ldub [$1+4], $5
or $3, $5, $3
$7.4:
ldub [$1+3], $5
sll $5, 24, $5
or $4, $5, $4
$7.3:
ldub [$1+2], $5
sll $5, 16, $5
or $4, $5, $4
$7.2:
ldub [$1+1], $5
sll $5, 8, $5
or $4, $5, $4
$7.1:
ldub [$1+0], $5
ba $8
or $4, $5, $4
.align 4
$7.jmp.table:
.word 0
.word $7.1-$7.0
.word $7.2-$7.0
.word $7.3-$7.0
.word $7.4-$7.0
.word $7.5-$7.0
.word $7.6-$7.0
.word $7.7-$7.0
})
! {store_little_endian}
!
! parameter 1 address
! parameter 2 source left
! parameter 3 source right
! parameter 4 temporar
define(store_little_endian, {
! {store_little_endian}
! $1 $2 $3 $4 $5 $6 $7 $8 $9
! rightmost in register to first in memory
#ifdef OPENSSL_SYSNAME_ULTRASPARC
andcc $1, 3, global0
bne,pn %icc, $5
nop
sta $2, [$1] 0x88
add $1, 4, $4
ba,pt %icc, $5a
sta $3, [$4] 0x88
#endif
$5:
and $2, 255, $4
stub $4, [$1+0]