;
; PA-RISC 2.0 implementation of bn_asm code, based on the
; 64-bit version of the code. This code is effectively the
; same as the 64-bit version except the register model is
; slightly different given all values must be 32-bit between
; function calls. Thus the 64-bit return values are returned
; in %ret0 and %ret1 vs just %ret0 as is done in 64-bit
;
;
; This code is approximately 2x faster than the C version
; for RSA/DSA.
;
; See http://devresource.hp.com/ for more details on the PA-RISC
; architecture. Also see the book "PA-RISC 2.0 Architecture"
; by Gerry Kane for information on the instruction set architecture.
;
; Code written by Chris Ruemmler (with some help from the HP C
; compiler).
;
; The code compiles with HP's assembler
;
.level 2.0N
.space $TEXT$
.subspa $CODE$,QUAD=0,ALIGN=8,ACCESS=0x2c,CODE_ONLY
;
; Global Register definitions used for the routines.
;
; Some information about HP's runtime architecture for 32-bits.
;
; "Caller save" means the calling function must save the register
; if it wants the register to be preserved.
; "Callee save" means if a function uses the register, it must save
; the value before using it.
;
; For the floating point registers
;
; "caller save" registers: fr4-fr11, fr22-fr31
; "callee save" registers: fr12-fr21
; "special" registers: fr0-fr3 (status and exception registers)
;
; For the integer registers
; value zero : r0
; "caller save" registers: r1,r19-r26
; "callee save" registers: r3-r18
; return register : r2 (rp)
; return values ; r28,r29 (ret0,ret1)
; Stack pointer ; r30 (sp)
; millicode return ptr ; r31 (also a caller save register)
;
; Arguments to the routines
;
r_ptr .reg %r26
a_ptr .reg %r25
b_ptr .reg %r24
num .reg %r24
n .reg %r23
;
; Note that the "w" argument for bn_mul_add_words and bn_mul_words
; is passed on the stack at a delta of -56 from the top of stack
; as the routine is entered.
;
;
; Globals used in some routines
;
top_overflow .reg %r23
high_mask .reg %r22 ; value 0xffffffff80000000L
;------------------------------------------------------------------------------
;
; bn_mul_add_words
;
;BN_ULONG bn_mul_add_words(BN_ULONG *r_ptr, BN_ULONG *a_ptr,
; int num, BN_ULONG w)
;
; arg0 = r_ptr
; arg1 = a_ptr
; arg3 = num
; -56(sp) = w
;
; Local register definitions
;
fm1 .reg %fr22
fm .reg %fr23
ht_temp .reg %fr24
ht_temp_1 .reg %fr25
lt_temp .reg %fr26
lt_temp_1 .reg %fr27
fm1_1 .reg %fr28
fm_1 .reg %fr29
fw_h .reg %fr7L
fw_l .reg %fr7R
fw .reg %fr7
fht_0 .reg %fr8L
flt_0 .reg %fr8R
t_float_0 .reg %fr8
fht_1 .reg %fr9L
flt_1 .reg %fr9R
t_float_1 .reg %fr9
tmp_0 .reg %r31
tmp_1 .reg %r21
m_0 .reg %r20
m_1 .reg %r19
ht_0 .reg %r1
ht_1 .reg %r3
lt_0 .reg %r4
lt_1 .reg %r5
m1_0 .reg %r6
m1_1 .reg %r7
rp_val .reg %r8
rp_val_1 .reg %r9
bn_mul_add_words
.export bn_mul_add_words,entry,NO_RELOCATION,LONG_RETURN
.proc
.callinfo frame=128
.entry
.align 64
STD %r3,0(%sp) ; save r3
STD %r4,8(%sp) ; save r4
NOP ; Needed to make the loop 16-byte aligned
NOP ; needed to make the loop 16-byte aligned
STD %r5,16(%sp) ; save r5
NOP
STD %r6,24(%sp) ; save r6
STD %r7,32(%sp) ; save r7
STD %r8,40(%sp) ; save r8
STD %r9,48(%sp) ; save r9
COPY %r0,%ret1 ; return 0 by default
DEPDI,Z 1,31,1,top_overflow ; top_overflow = 1 << 32
CMPIB,>= 0,num,bn_mul_add_words_exit ; if (num <= 0) then exit
LDO 128(%sp),%sp ; bump stack
;
; The loop is unrolled twice, so if there is only 1 number
; then go straight to the cleanup code.
;
CMPIB,= 1,num,bn_mul_add_words_single_top
FLDD -184(%sp),fw ; (-56-128) load up w into fw (fw_h/fw_l)
;
; This loop is unrolled 2 times (64-byte aligned as well)
;
; PA-RISC 2.0 chips have two fully pipelined multipliers, thus
; two 32-bit mutiplies can be issued per cycle.
;
bn_mul_add_words_unroll2
FLDD 0(a_ptr),t_float_0 ; load up 64-bit value (fr8L) ht(L)/lt(R)
FLDD 8(a_ptr),t_float_1 ; load up 64-bit value (fr8L) ht(L)/lt(R)
LDD 0(r_ptr),rp_val ; rp[0]
LDD 8(r_ptr),rp_val_1 ; rp[1]
XMPYU fht_0,fw_l,fm1 ; m1[0] = fht_0*fw_l
XMPYU fht_1,fw_l,fm1_1 ; m1[1] = fht_1*fw_l
FSTD fm1,-16(%sp) ; -16(sp) = m1[0]
FSTD fm1_1,-48(%sp) ; -48(sp) = m1[1]
XMPYU flt_0,fw_h,fm ; m[0] = flt_0*fw_h
XMPYU flt_1,fw_h,fm_1 ; m[1] = flt_1*fw_h
FSTD fm,-8(%sp) ; -8(sp) = m[0]
FSTD fm_1,-40(%sp) ; -40(sp) = m[1]
XMPYU fht_0,fw_h,ht_temp ; ht_temp = fht_0*fw_h
XMPYU fht_1,fw_h,ht_temp_1 ; ht_temp_1 = fht_1*fw_h
FSTD ht_temp,-24(%sp) ; -24(sp) = ht_temp
FSTD ht_temp_1,-56(%sp) ; -56(sp) = ht_temp_1
XMPYU flt_0,fw_l,lt_temp ; lt_temp = lt*fw_l
XMPYU flt_1,fw_l,lt_temp_1 ; lt_temp = lt*fw_l
FSTD lt_temp,-32(%sp) ; -32(sp) = lt_temp
FSTD lt_temp_1,-64(%sp) ; -64(sp) = lt_temp_1
LDD -8(%sp),m_0 ; m[0]
LDD -40(%sp),m_1 ; m[1]
LDD -16(%sp),m1_0 ; m1[0]
LDD -48(%sp),m1_1 ; m1[1]
LDD -24(%sp),ht_0 ; ht[0]
LDD -56(%sp),ht_1 ; ht[1]
ADD,L m1_0,m_0,tmp_0 ; tmp_0 = m[0] + m1[0];
ADD,L m1_1,m_1,tmp_1 ; tmp_1 = m[1] + m1[1];
LDD -32(%sp),lt_0
LDD -64(%sp),lt_1
CMPCLR,*>>= tmp_0,m1_0, %r0 ; if (m[0] < m1[0])
ADD,L ht_0,top_overflow,ht_0 ; ht[0] += (1<<32)
CMPCLR,*>>= tmp_1,m1_1,%r0 ; if (m[1] < m1[1])
ADD,L ht_1,top_overflow,ht_1 ; ht[1] += (1<<32)
EXTRD,U tmp_0,31,32,m_0 ; m[0]>>32
DEPD,Z tmp_0,31,32,m1_0 ; m1[0] = m[0]<<32
EXTRD,U tmp_1,31,32,m_1 ; m[1]>>32
DEPD,Z tmp_1,31,32,m1_1 ; m1[1] = m[1]<<32
ADD,L ht_0,m_0,ht_0 ; ht[0]+= (m[0]>>32)
ADD,L ht_1,m_1,ht_1 ; ht[1]+= (m[1]>>32)
ADD lt_0,m1_0,lt_0 ; lt[0] = lt[0]+m1[0];
ADD,DC ht_0,%r0,ht_0 ; ht[0]++
ADD lt_1,m1_1,lt_1 ; lt[1] = lt[1]+m1[1];
ADD,DC ht_1,%r0,ht_1 ; ht[1]++
ADD %ret1,lt_0,lt_0 ; lt[0] = lt[0] + c;
ADD,DC ht_0,%r0,ht_0 ; ht[0]++
ADD lt_0,rp_val,lt_0 ; lt[0] = lt[0]+rp[0]
ADD,DC ht_0,%r0,ht_0 ; ht[0]++
LDO -2(num),num ; num = num - 2;
ADD ht_0,lt_1,lt_1 ; lt[1] = lt[1] + ht_0 (c);
ADD,DC ht_1,%r0,ht_1 ; ht[1]++
STD lt_0,0(r_ptr) ; rp[0] = lt[0]
ADD lt_1,rp_val_1,lt_1 ; lt[1] = lt[1]+rp[1]
ADD,DC ht_1,%r0,%ret1 ; ht[1]++
LDO 16(a_ptr),a_ptr ; a_ptr += 2
STD lt_1,8(r_ptr) ; rp[1] = lt[1]
CMPIB,<= 2,num,bn_mul_add_words_unroll2 ; go again if more to do
LDO 16(r_ptr),r_ptr ; r_ptr += 2
CMPIB,=,N 0,num,bn_mul_add_words_exit ; are we done, or cleanup last one
;
; Top of loop aligned on 64-byte boundary
;
bn_mul_add_words_single_top
FLDD 0(a_ptr),t_float_0 ; load up 64-bit value (fr8L) ht(L)/lt(R)
LDD 0(r_ptr),rp_val ; rp[0]
LDO 8(a_ptr),a_ptr ; a_ptr++
XMPYU fht_0,fw_l,fm1 ; m1 = ht*fw_l
FSTD fm1,-16(%sp) ; -16(sp) = m1
XMPYU flt_0,fw_h,fm ; m = lt*fw_h
FSTD fm,-8(%sp) ; -8(sp) = m
XMPYU fht_0,fw_h,ht_temp ; ht_temp = ht*fw_h
FSTD ht_temp,-24(%sp) ; -24(sp) = ht
XMPYU flt_0,fw_l,lt_temp ; lt_temp = lt*fw_l
FSTD lt_temp,-32(%sp) ; -32(sp) = lt
LDD -8(%sp),m_0
LDD -16(%sp),m1_0 ; m1 = temp1
ADD,L m_0,m1_0,tmp_0 ; tmp_0 = m + m1;
LDD -24(%sp),ht_0
LDD -32(%sp),lt_0
CMPCLR,*>>= tmp_0,m1_0,%r0 ; if (m < m1)
ADD,L ht_0,top_overflow,ht_0 ; ht += (1<<32)
EXTRD,U tmp_0,31,32,m_0 ; m>>32
DEPD,Z tmp_0,31,32,m1_0 ; m1 = m<<32
ADD,L ht_0,m_0,ht_0 ; ht+= (m>>32)
ADD lt_0,m1_0,tmp_0 ; tmp_0 = lt+m1;
ADD,DC ht_0,%r0,ht_0 ; ht++
ADD %ret1,tmp_0,lt_0 ; lt = lt + c;
ADD,DC ht_0,%r0,ht_0 ; ht++
ADD lt_0,rp_val,lt_0 ; lt = lt+rp[0]
ADD,DC ht_0,%r0,%ret1 ; ht++
STD lt_0,0(r_ptr) ; rp[0] = lt
bn_mul_add_words_exit
.EXIT
EXTRD,U %ret1,31,32,%ret0 ; for 32-bit, return in ret0/ret1
LDD -80(%sp),%r9 ; restore r9
LDD -88(%sp),%r8 ; restore r8
LDD -96(%sp),%r7 ; restore r7
LDD -104(%sp),%r6 ; restore r6
LDD -112(%sp),%r5 ; restore r5
LDD -120(%sp),%r4 ; restore r4
BVE (%rp)
LDD,MB -128(%sp),%r3 ; restore r3
.PROCEND ;in=23,24,25,26,29;out=28;
;----------------------------------------------------------------------------
;
;BN_ULONG bn_mul_words(BN_ULONG *rp, BN_ULONG *ap, int num, BN_ULONG w)
;
; arg0 = rp
; arg1 = ap
; arg3 = num
; w on stack at -56(sp)
bn_mul_words
.proc
.callinfo frame=128
.entry
.EXPORT bn_mul_words,ENTRY,PRIV_LEV=3,NO_RELOCATION,LONG_RETURN
.align 64
STD %r3,0(%sp) ; save r3
STD %r4,8(%sp) ; save r4
NOP
STD %r5,16(%sp) ; save r5
STD %r6,24(%sp) ; save r6
STD %r7,32(%sp) ; save r7
COPY %r0,%ret1 ; return 0 by default
DEPDI,Z 1,31,1,top_overflow ; top_overflow = 1 << 32
CMPIB,>= 0,num,bn_mul_words_exit
LDO 128(%sp),%sp ; bump stack
;
; See if only 1 word to do, thus just do cleanup
;
CMPIB,= 1,num,bn_mul_words_single_top
FLDD -184(%sp),fw ; (-56-128) load up w into fw (fw_h/fw_l)
;
; This loop is unrolled 2 times (64-byte aligned as well)
;
; PA-RISC 2.0 chips have two fully pipelined multipliers, thus
; two 32-bit mutiplies can be issued per cycle.
;
bn_mul_words_unroll2
FLDD 0(a_ptr),t_float_0 ; load up 64-bit value (fr8L) ht(L)/lt(R)
FLDD 8(a_ptr),t_float_1 ; load up 64-bit value (fr8L) ht(L)/lt(R)
XMPYU fht_0,fw_l,fm1 ; m1[0] = fht_0*fw_l
XMPYU fht_1,fw_l,fm1_1 ; m1[1] = ht*fw_l
FSTD fm1,-16(%sp) ; -16(sp) = m1
FSTD fm1_1,-48(%sp) ; -48(sp) = m1
XMPYU flt_0,fw_h,fm ; m = lt*fw_h
XMPYU flt_1,fw_h,fm_1 ; m = lt*fw_h
FSTD fm,-8(%sp) ; -8(sp) = m
FSTD fm_1,-40(%sp) ; -40(sp) = m
XMPYU fht_0,fw_h,ht_temp ; ht_temp = fht_0*fw_h
XMPYU fht_1,fw_h,ht_temp_1 ; ht_temp = ht*fw_h
FSTD ht_temp,-24(%sp) ; -24(sp) = ht
FSTD ht_temp_1,-56(%sp) ; -56(sp) = ht
XMPYU flt_0,fw_l,lt_temp ; lt_temp = lt*fw_l
XMPYU flt_1,fw_l,lt_temp_1 ; lt_temp = lt*fw_l
FSTD lt_temp,-32(%sp) ; -32(sp) = lt
FSTD lt_temp_1,-64(%sp) ; -64(sp) = lt
LDD -8(%sp),m_0
LDD -40(%sp),m_1
LDD -16(%sp),m1_0
LDD -48(%sp),m1_1
LDD -24(%sp),ht_0
LDD -56(%sp),ht_1
ADD,L m1_0,m_0,tmp_0 ; tmp_0 = m + m1;
ADD,L m1_1,m_1,tmp_1 ; tmp_1 = m + m1;
LDD -32(%sp),lt_0
LDD -64(%sp),lt_1
CMPCLR,*>>= tmp_0,m1_0, %r0 ; if (m < m1)
ADD,L ht_0,top_overflow,ht_0 ; ht += (1<<32)
CMPCLR,*>>= tmp_1,m1_1,%r0 ; if (m < m1)
ADD,L ht_1,top_overflow,ht_1 ; ht += (1<<32)
EXTRD,U tmp_0,31,32,m_0 ; m>>32
DEPD,Z tmp_0,31,32,m1_0 ; m1 = m<<32
EXTRD,U tmp_1,31,32,m_1 ; m>>32
DEPD,Z tmp_1,31,32,m1_1 ; m1 = m<<32
ADD,L ht_0,m_0,ht_0 ; ht+= (m>>32)
ADD,L ht_1,m_1,ht_1 ; ht+= (m>>32)
ADD lt_0,m1_0,lt_0 ; lt = lt+m1;
ADD,DC ht_0,%r0,ht_0 ; ht++
ADD lt_1,m1_1,lt_1 ; lt = lt+m1;
ADD,DC ht_1,%r0,ht_1 ; ht++
ADD %ret1,lt_0,lt_0 ; lt = lt + c (ret1);
ADD,DC ht_0,%r0,ht_0 ; ht++
ADD ht_0,lt_1,lt_1 ; lt = lt + c (ht_0)
ADD,DC ht_1,%r0,ht_1 ; ht++
STD lt_0,0(r_ptr) ; rp[0] = lt
STD lt_1,8(r_ptr) ; rp[1] = lt
COPY ht_1,%ret1 ; carry = ht
LDO -2(num),num ; num = num - 2;
LDO 16(a_ptr),a_ptr ; ap += 2
CMPIB,<= 2,num,bn_mul_words_unroll2
LDO 16(r_ptr),r_ptr ; rp++
CMPIB,=,N 0,num,bn_mul_words_exit ; are we done?
;
; Top of loop aligned on 64-byte boundary
;
bn_mul_words_single_top
FLDD 0(a_ptr),t_float_0 ; load up 64-bit value (fr8L) ht(L)/lt(R)
XMPYU fht_0,fw_l,fm1 ; m1 = ht*fw_l
FSTD fm1,-16(%sp) ; -16(sp) = m1
XMPYU flt_0,fw_h,fm ; m = lt*fw_h
FSTD fm,-8(%sp) ; -8(sp) = m
XMPYU fht_0,fw_h,ht_temp ; ht_temp = ht*fw_h
FSTD ht_temp,-24(%sp) ; -24(sp) = ht
XMPYU flt_0,fw_l,lt_temp ; lt_temp = lt*fw_l
FSTD lt_temp,-32(%sp) ; -32(sp) = lt
LDD -8(%sp),m_0
LDD -16(%sp),m1_0
ADD,L m_0,m1_0,tmp_0 ; tmp_0 = m + m1;
LDD -24(%sp),ht_0
LDD -32(%sp),lt_0
CMPCLR,*>>= tmp_0,m1_0,%r0 ; if (m < m1)
ADD,L ht_0,top_overflow,ht_0 ; ht += (1<<32)
EXTRD,U tmp_0,31,32,m_0 ; m>>32
DEPD,Z tmp_0,31,32,m1_0 ; m1 = m<<32
ADD,L ht_0,m_0,ht_0 ; ht+= (m>>32)
ADD lt_0,m1_0,lt_0 ; lt= lt+m1;
ADD,DC ht_0,%r0,ht_0 ; ht++
ADD %ret1,lt_0,lt_0 ; lt = lt + c;
ADD,DC ht_0,%r0,ht_0 ; ht++
COPY ht_0,%ret1 ; copy carry
STD lt_0,0(r_ptr) ; rp[0] = lt
bn_mul_words_exit
.EXIT
EXTRD,U %ret1,31,32,%ret0 ; for 32-bit, return in ret0/ret1
LDD -96(%sp),%r7 ; restore r7
LDD -104(%sp),%r6 ; restore r6
LDD -112(%sp),%r5 ; restore r5
LDD -120(%sp),%r4 ; restore r4
BVE (%rp)
LDD,MB -128(%sp),%r3 ; restore r3
.PROCEND
;----------------------------------------------------------------------------
;
;void bn_sqr_words(BN_ULONG *rp, BN_ULONG *ap, int num)
;
; arg0 = rp
; arg1 = ap
; arg2 = num
;
bn_sqr_words
.proc
.callinfo FRAME=128,ENTRY_GR=%r3,ARGS_SAVED,ORDERING_AWARE
.EXPORT bn_sqr_words,ENTRY,PRIV_LEV=3,NO_RELOCATION,LONG_RETURN
.entry
.align 64
STD %r3,0(%sp) ; save r3
STD %r4,8(%sp) ; save r4
NOP
STD %r5,16(%sp) ; save r5
CMPIB,>= 0,num,bn_sqr_words_exit
LDO 128(%sp),%sp ; bump stack
;
; If only 1, the goto straight to cleanup
;
CMPIB,= 1,num,bn_sqr_words_single_top
DEPDI,Z -1,32,33,high_mask ; Create Mask 0xffffffff80000000L
;
; This loop is unrolled 2 times (64-byte aligned as well)
;
bn_sqr_words_unroll2
FLDD 0(a_ptr),t_float_0 ; a[0]
FLDD 8(a_ptr),t_float_1 ; a[1]
XMPYU fht_0,flt_0,fm ; m[0]
XMPYU fht_1,flt_1,fm_1 ; m[1]
FSTD fm,-24(%sp) ; store m[0]
FSTD fm_1,-56(%sp) ; store m[1]
XMPYU flt_0,flt_0,lt_temp ; lt[0]
XMPYU flt_1,flt_1,lt_temp_1 ; lt[1]
FSTD lt_temp,-16(%sp) ; store lt[0]
FSTD lt_temp_1,-48(%sp) ; store lt[1]
XMPYU fht_0,fht_0,ht_temp ; ht[0]
XMPYU fht_1,fht_1,ht_temp_1 ; ht[1]
FSTD ht_temp,-8(%sp) ; store ht[0]
FSTD ht_temp_1,-40(%sp) ; store ht[1]
LDD -24(%sp),m_0
LDD -56(%sp),m_1
AND m_0,high_mask,tmp_0 ; m[0] & Mask
AND m_1,high_mask,tmp_1 ; m[1] & Mask
DEPD,Z m_0,30,31,m_0 ; m[0] << 32+1
DEPD,Z m_1,30,31,m_1 ; m[1] << 32+1
LDD -16(%sp),lt_0
LDD -48(%sp),lt_1
EXTRD,U tmp_0,32,33,tmp_0 ; tmp_0 = m[0]&Mask >> 32-1
EXTRD,U tmp_1,32,33,tmp_1 ; tmp_1 = m[1]&Mask >> 32-1
LDD -8(%sp),ht_0
LDD -40(%sp),ht_1
ADD,L ht_0,tmp_0,ht_0 ; ht[0] += tmp_0
ADD,L ht_1,tmp_1,ht_1 ; ht[1] += tmp_1
ADD lt_0,m_0,lt_0 ; lt = lt+m
ADD,DC ht_0,%r0,ht_0 ; ht[0]++
STD lt_0,0(r_ptr) ; rp[0] = lt[0]
STD ht_0,8(r_ptr) ; rp[1] = ht[1]
ADD lt_1,m_1,lt_1 ; lt = lt+m
ADD,DC ht_1,%r0,ht_1 ; ht[1]++
STD lt_1,16(r_ptr) ; rp[2] = lt[1]
STD ht_1,24(r_ptr) ; rp[3] = ht[1]
LDO -2(num),num ; num = num - 2;
LDO 16(a_ptr),a_ptr ; ap += 2
CMPIB,<= 2,num,bn_sqr_words_unroll2
LDO 32(r_ptr),r_ptr ; rp += 4
CMPIB,=,N 0,num,bn_sqr_words_exit ; are we done?
;
; Top of loop aligned on 64-byte boundary
;
bn_sqr_words_single_top
FLDD 0(a_ptr),t_float_0 ; load up 64-bit value (fr8L) ht(L)/lt(R)
XMPYU fht_0,flt_0,fm ; m
FSTD fm,-24(%sp) ; store m
XMPYU flt_0,flt_0,lt_temp ; lt
FSTD lt_temp,-16(%sp) ; store lt
XMPYU fht_0,fht_0,ht_temp ; ht
FSTD ht_temp,-8(%sp) ; store ht
LDD -24(%sp),m_0 ; load m
AND m_0,high_mask,tmp_0 ; m & Mask
DEPD,Z m_0,30,31,m_0 ; m << 32+1
LDD -16(%sp),lt_0 ; lt
LDD -8(%sp),ht_0 ; ht
EXTRD,U tmp_0,32,33,tmp_0 ; tmp_0 = m&Mask >> 32-1
ADD m_0,lt_0,lt_0 ; lt = lt+m
ADD,L ht_0,tmp_0,ht_0 ; ht += tmp_0
ADD,DC ht_0,%r0,ht_0 ; ht++
STD lt_0,0(r_ptr) ; rp[0] = lt
STD ht_0,8(r_ptr) ; rp[1] = ht
bn_sqr_words_exit
.EXIT
LDD -112(%sp),%r5 ; restore r5
LDD -120(%sp),%r4 ; restore r4
BVE (%rp)
LDD,MB -128(%sp),%r3
.PROCEND ;in=23,24,25,26,29;out=28;
;----------------------------------------------------------------------------
;
;BN_ULONG bn_add_words(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int n)
;
; arg0 = rp
; arg1 = ap
; arg2 = bp
; arg3 = n
t .reg %r22
b .reg %r21
l .reg %r20
bn_add_words
.proc
.entry
.callinfo
.EXPORT bn_add_words,ENTRY,PRIV_LEV=3,NO_RELOCATION,LONG_RETURN
.align 64
CMPIB,>= 0,n,bn_add_words_exit
COPY %r0,%ret1 ; return 0 by default
;
; If 2 or more numbers do the loop
;
CMPIB,= 1,n,bn_add_words_single_top
NOP
;
; This loop is unrolled 2 times (64-byte aligned as well)
;
bn_add_words_unroll2
LDD 0(a_ptr),t
LDD 0(b_ptr),b
ADD t,%ret1,t ; t = t+c;
ADD,DC %r0,%r0,%ret1 ; set c to carry
ADD t,b,l ; l = t + b[0]
ADD,DC %ret1,%r0,%ret1 ; c+= carry
STD l,0(r_ptr)
LDD 8(a_ptr),t
LDD 8(b_ptr),b
ADD t,%ret1,t ; t = t+c;
ADD,DC %r0,%r0,%ret1 ; set c to carry
ADD t,b,l ; l = t + b[0]
ADD,DC %ret1,%r0,%ret1 ; c+= carry
STD l,8(r_ptr)
LDO -2(n),n
LDO 16(a_ptr),a_ptr
LDO 16(b_ptr),b_ptr
CMPIB,<= 2,n,bn_add_words_unroll2
LDO 16(r_ptr),r_ptr
CMPIB,=,N 0,n,bn_add_words_exit ; are we done?
bn_add_words_single_top
LDD 0(a_ptr),t
LDD 0(b_ptr),b
ADD t,%ret1,t ; t = t+c;
ADD,DC %r0,%r0,%ret1 ; set c to carry (could use CMPCLR??)
ADD t,b,l ; l = t + b[0]
ADD,DC %ret1,%r0,%ret1 ; c+= carry
STD l,0(r_ptr)
bn_add_words_exit
.EXIT
BVE (%rp)
EXTRD,U %ret1,31,32,%ret0 ; for 32-bit, return in ret0/ret1
.PROCEND ;in=23,24,25,26,29;out=28;
;----------------------------------------------------------------------------
;
;BN_ULONG bn_sub_words(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int n)
;
; arg0 = rp
; arg1 = ap
; arg2 = bp
; arg3 = n
t1 .reg %r22
t2 .reg %r21
sub_tmp1 .reg %r20
sub_tmp2 .reg %r19
bn_sub_words
.proc
.callinfo
.EXPORT bn_sub_words,ENTRY,PRIV_LEV=3,NO_RELOCATION,LONG_RETURN
.entry
.align 64
CMPIB,>= 0,n,bn_sub_words_exit
COPY %r0,%ret1 ; return 0 by default
;
; If 2 or more numbers do the loop
;
CMPIB,= 1,n,bn_sub_words_single_top
NOP
;
; This loop is unrolled 2 times (64-byte aligned as well)
;
bn_sub_words_unroll2
LDD 0(a_ptr),t1
LDD 0(b_ptr),t2
SUB t1,t2,sub_tmp1 ; t3 = t1-t2;
SUB sub_tmp1,%ret1,sub_tmp1 ; t3 = t3- c;
CMPCLR,*>> t1,t2,sub_tmp2 ; clear if t1 > t2
LDO 1(%r0),sub_tmp2
CMPCLR,*= t1,t2,%r0
COPY sub_tmp2,%ret1
STD sub_tmp1,0(r_ptr)
LDD 8(a_ptr),t1
LDD 8(b_ptr),t2
SUB t1,t2,sub_tmp1 ; t3 = t1-t2;
SUB sub_tmp1,%ret1,sub_tmp1 ; t3 = t3- c;
CMPCLR,*>> t1,t2,sub_tmp2 ; clear if t1 > t2
LDO 1(%r0),sub_tmp2
CMPCLR,*= t1,t2,%r0
COPY sub_tmp2,%ret1
STD sub_tmp1,8(r_ptr)
LDO -2(n),n
LDO 16(a_ptr),a_ptr
LDO 16(b_ptr),b_ptr
CMPIB,<= 2,n,bn_sub_words_unroll2
LDO 16(r_ptr),r_ptr
CMPIB,=,N 0,n,bn_sub_words_exit ; are we done?
bn_sub_words_single_top
LDD 0(a_ptr),t1
LDD 0(b_ptr),t2
SUB t1,t2,sub_tmp1 ; t3 = t1-t2;
SUB sub_tmp1,%ret1,sub_tmp1 ; t3 = t3- c;
CMPCLR,*>> t1,t2,sub_tmp2 ; clear if t1 > t2
LDO 1(%r0),sub_tmp2
CMPCLR,*= t1,t2,%r0
COPY sub_tmp2,%ret1
STD sub_tmp1,0(r_ptr)
bn_sub_words_exit
.EXIT
BVE (%rp)
EXTRD,U %ret1,31,32,%ret0 ; for 32-bit, return in ret0/ret1
.PROCEND ;in=23,24,25,26,29;out=28;
;------------------------------------------------------------------------------
;
; unsigned long bn_div_words(unsigned long h, unsigned long l, unsigned long d)
;
; arg0 = h
; arg1 = l
; arg2 = d
;
; This is mainly just output from the HP C compiler.
;
;------------------------------------------------------------------------------
bn_div_words
.PROC
.EXPORT bn_div_words,ENTRY,PRIV_LEV=3,ARGW0=GR,ARGW1=GR,ARGW2=GR,ARGW3=GR,RTNVAL=GR,LONG_RETURN
.IMPORT BN_num_bits_word,CODE
;--- not PIC .IMPORT __iob,DATA
;--- not PIC .IMPORT fprintf,CODE
.IMPORT abort,CODE
.IMPORT $$div2U,MILLICODE
.CALLINFO CALLER,FRAME=144,ENTRY_GR=%r9,SAVE_RP,ARGS_SAVED,ORDERING_AWARE
.ENTRY
STW %r2,-20(%r30) ;offset 0x8ec
STW,MA %r3,192(%r30) ;offset 0x8f0
STW %r4,-188(%r30) ;offset 0x8f4
DEPD %r5,31,32,%r6 ;offset 0x8f8
STD %r6,-184(%r30) ;offset 0x8fc
DEPD %r7,31,32,%r8 ;offset 0x900
STD %r8,-176(%r30) ;offset 0x904
STW %r9,-168(%r30) ;offset 0x908
LDD -248(%r30),%r3 ;offset 0x90c
COPY %r26,%r4 ;offset 0x910
COPY %r24,%r5 ;offset 0x914
DEPD %r25,31,32,%r4 ;offset 0x918
CMPB,*<> %r3,%r0,$0006000C ;offset 0x91c
DEPD %r23,31,32,%r5 ;offset 0x920
MOVIB,TR -1,%r29,$00060002 ;offset 0x924
EXTRD,U %r29,31,32,%r28 ;offset 0x928
$0006002A
LDO -1(%r29),%r29 ;offset 0x92c
SUB %r23,%r7,%r23 ;offset 0x930
$00060024
SUB %r4,%r31,%r25 ;offset 0x934
AND %r25,%r19,%r26 ;offset 0x938
CMPB,*<>,N %r0,%r26,$00060046 ;offset 0x93c
DEPD,Z %r25,31,32,%r20 ;offset 0x940
OR %r20,%r24,%r21 ;offset 0x944
CMPB,*<<,N %r21,%r23,$0006002A ;offset 0x948
SUB %r31,%r2,%r31 ;offset 0x94c
$00060046
$0006002E
DEPD,Z %r23,31,32,%r25 ;offset 0x950
EXTRD,U %r23,31,32,%r26 ;offset 0x954
AND %r25,%r19,%r24 ;offset 0x958
ADD,L %r31,%r26,%r31 ;offset 0x95c
CMPCLR,*>>= %r5,%r24,%r0 ;offset 0x960
LDO 1(%r31),%r31 ;offset 0x964
$00060032
CMPB,*<<=,N %r31,%r4,$00060036 ;offset 0x968
LDO -1(%r29),%r29 ;offset 0x96c
ADD,L %r4,%r3,%r4 ;offset 0x970
$00060036
ADDIB,=,N -1,%r8,$D0 ;offset 0x974
SUB %r5,%r24,%r28 ;offset 0x978
$0006003A
SUB %r4,%r31,%r24 ;offset 0x97c
SHRPD %r24,%r28,32,%r4 ;offset 0x980
DEPD,Z %r29,31,32,%r9 ;offset 0x984
DEPD,Z %r28,31,32,%r5 ;offset 0x988
$0006001C
EXTRD,U %r4,31,32,%r31 ;offset 0x98c
CMPB,*<>,N %r31,%r2,$00060020 ;offset 0x990
MOVB,TR %r6,%r29,$D1 ;offset 0x994
STD %r29,-152(%r30) ;offset 0x998
$0006000C
EXTRD,U %r3,31,32,%r25 ;offset 0x99c
COPY %r3,%r26 ;offset 0x9a0
EXTRD,U %r3,31,32,%r9 ;offset 0x9a4
EXTRD,U %r4,31,32,%r8 ;offset 0x9a8
.CALL ARGW0=GR,ARGW1=GR,RTNVAL=GR ;in=25,26;out=28;
B,L BN_num_bits_word,%r2 ;offset 0x9ac
EXTRD,U %r5,31,32,%r7 ;offset 0x9b0
LDI 64,%r20 ;offset 0x9b4
DEPD %r7,31,32,%r5 ;offset 0x9b8
DEPD %r8,31,32,%r4 ;offset 0x9bc
DEPD %r9,31,32,%r3 ;offset 0x9c0
CMPB,= %r28,%r20,$00060012 ;offset 0x9c4
COPY %r28,%r24 ;offset 0x9c8
MTSARCM %r24 ;offset 0x9cc
DEPDI,Z -1,%sar,1,%r19 ;offset 0x9d0
CMPB,*>>,N %r4,%r19,$D2 ;offset 0x9d4
$00060012
SUBI 64,%r24,%r31 ;offset 0x9d8
CMPCLR,*<< %r4,%r3,%r0 ;offset 0x9dc
SUB %r4,%r3,%r4 ;offset 0x9e0
$00060016
CMPB,= %r31,%r0,$0006001A ;offset 0x9e4
COPY %r0,%r9 ;offset 0x9e8
MTSARCM %r31 ;offset 0x9ec
DEPD,Z %r3,%sar,64,%r3 ;offset 0x9f0
SUBI 64,%r31,%r26 ;offset 0x9f4
MTSAR %r26 ;offset 0x9f8
SHRPD %r4,%r5,%sar,%r4 ;offset 0x9fc
MTSARCM %r31 ;offset 0xa00
DEPD,Z %r5,%sar,64,%r5 ;offset 0xa04
$0006001A
DEPDI,Z -1,31,32,%r19 ;offset 0xa08
AND %r3,%r19,%r29 ;offset 0xa0c
EXTRD,U %r29,31,32,%r2 ;offset 0xa10
DEPDI,Z -1,63,32,%r6 ;offset 0xa14
MOVIB,TR 2,%r8,$0006001C ;offset 0xa18
EXTRD,U %r3,63,32,%r7 ;offset 0xa1c
$D2
;--- not PIC ADDIL LR'__iob-$global$,%r27,%r1 ;offset 0xa20
;--- not PIC LDIL LR'C$7,%r21 ;offset 0xa24
;--- not PIC LDO RR'__iob-$global$+32(%r1),%r26 ;offset 0xa28
;--- not PIC .CALL ARGW0=GR,ARGW1=GR,ARGW2=GR,RTNVAL=GR ;in=24,25,26;out=28;
;--- not PIC B,L fprintf,%r2 ;offset 0xa2c
;--- not PIC LDO RR'C$7(%r21),%r25 ;offset 0xa30
.CALL ;
B,L abort,%r2 ;offset 0xa34
NOP ;offset 0xa38
B $D3 ;offset 0xa3c
LDW -212(%r30),%r2 ;offset 0xa40
$00060020
COPY %r4,%r26 ;offset 0xa44
EXTRD,U %r4,31,32,%r25 ;offset 0xa48
COPY %r2,%r24 ;offset 0xa4c
.CALL ;in=23,24,25,26;out=20,21,22,28,29; (MILLICALL)
B,L $$div2U,%r31 ;offset 0xa50
EXTRD,U %r2,31,32,%r23 ;offset 0xa54
DEPD %r28,31,32,%r29 ;offset 0xa58
$00060022
STD %r29,-152(%r30) ;offset 0xa5c
$D1
AND %r5,%r19,%r24 ;offset 0xa60
EXTRD,U %r24,31,32,%r24 ;offset 0xa64
STW %r2,-160(%r30) ;offset 0xa68
STW %r7,-128(%r30) ;offset 0xa6c
FLDD -152(%r30),%fr4 ;offset 0xa70
FLDD -152(%r30),%fr7 ;offset 0xa74
FLDW -160(%r30),%fr8L ;offset 0xa78
FLDW -128(%r30),%fr5L ;offset 0xa7c
XMPYU %fr8L,%fr7L,%fr10 ;offset 0xa80
FSTD %fr10,-136(%r30) ;offset 0xa84
XMPYU %fr8L,%fr7R,%fr22 ;offset 0xa88
FSTD %fr22,-144(%r30) ;offset 0xa8c
XMPYU %fr5L,%fr4L,%fr11 ;offset 0xa90
XMPYU %fr5L,%fr4R,%fr23 ;offset 0xa94
FSTD %fr11,-112(%r30) ;offset 0xa98
FSTD %fr23,-120(%r30) ;offset 0xa9c
LDD -136(%r30),%r28 ;offset 0xaa0
DEPD,Z %r28,31,32,%r31 ;offset 0xaa4
LDD -144(%r30),%r20 ;offset 0xaa8
ADD,L %r20,%r31,%r31 ;offset 0xaac
LDD -112(%r30),%r22 ;offset 0xab0
DEPD,Z %r22,31,32,%r22 ;offset 0xab4
LDD -120(%r30),%r21 ;offset 0xab8
B $00060024 ;offset 0xabc
ADD,L %r21,%r22,%r23 ;offset 0xac0
$D0
OR %r9,%r29,%r29 ;offset 0xac4
$00060040
EXTRD,U %r29,31,32,%r28 ;offset 0xac8
$00060002
$L2
LDW -212(%r30),%r2 ;offset 0xacc
$D3
LDW -168(%r30),%r9 ;offset 0xad0
LDD -176(%r30),%r8 ;offset 0xad4
EXTRD,U %r8,31,32,%r7 ;offset 0xad8
LDD -184(%r30),%r6 ;offset 0xadc
EXTRD,U %r6,31,32,%r5 ;offset 0xae0
LDW -188(%r30),%r4 ;offset 0xae4
BVE (%r2) ;offset 0xae8
.EXIT
LDW,MB -192(%r30),%r3 ;offset 0xaec
.PROCEND ;in=23,25;out=28,29;fpin=105,107;
;----------------------------------------------------------------------------
;
; Registers to hold 64-bit values to manipulate. The "L" part
; of the register corresponds to the upper 32-bits, while the "R"
; part corresponds to the lower 32-bits
;
; Note, that when using b6 and b7, the code must save these before
; using them because they are callee save registers
;
;
; Floating point registers to use to save values that
; are manipulated. These don't collide with ftemp1-6 and
; are all caller save registers
;
a0 .reg %fr22
a0L .reg %fr22L
a0R .reg %fr22R
a1 .reg %fr23
a1L .reg %fr23L
a1R .reg %fr23R
a2 .reg %fr24
a2L .reg %fr24L
a2R .reg %fr24R
a3 .reg %fr25
a3L .reg %fr25L
a3R .reg %fr25R
a4 .reg %fr26
a4L .reg %fr26L
a4R .reg %fr26R
a5 .reg %fr27
a5L .reg %fr27L
a5R .reg %fr27R
a6 .reg %fr28
a6L .reg %fr28L
a6R .reg %fr28R
a7 .reg %fr29
a7L .reg %fr29L
a7R .reg %fr29R
b0 .reg %fr30
b0L .reg %fr30L
b0R .reg %fr30R
b1 .reg %fr31
b1L .reg %fr31L
b1R .reg %fr31R
;
; Temporary floating point variables, these are all caller save
; registers
;
ftemp1 .reg %fr4
ftemp2 .reg %fr5
ftemp3 .reg %fr6
ftemp4 .reg %fr7
;
; The B set of registers when used.
;
b2 .reg %fr8
b2L .reg %fr8L
b2R .reg %fr8R
b3 .reg %fr9
b3L .reg %fr9L
b3R .reg %fr9R
b4 .reg %fr10
b4L .reg %fr10L
b4R .reg %fr10R
b5 .reg %fr11
b5L .reg %fr11L
b5R .reg %fr11R
b6 .reg %fr12
b6L .reg %fr12L
b6R .reg %fr12R
b7 .reg %fr13
b7L .reg %fr13L
b7R .reg %fr13R
c1 .reg %r21 ; only reg
temp1 .reg %r20 ; only reg
temp2 .reg %r19 ; only reg
temp3 .reg %r31 ; only reg
m1 .reg %r28
c2 .reg %r23
high_one .reg %r1
ht .reg %r6
lt .reg %r5
m .reg %r4
c3 .reg %r3
SQR_ADD_C .macro A0L,A0R,C1,C2,C3
XMPYU A0L,A0R,ftemp1 ; m
FSTD ftemp1,-24(%sp) ; store m
XMPYU A0R,A0R,ftemp2 ; lt
FSTD ftemp2,-16(%sp) ; store lt
XMPYU A0L,A0L,ftemp3 ; ht
FSTD ftemp3,-8(%sp) ; store ht
LDD -24(%sp),m ; load m
AND m,high_mask,temp2 ; m & Mask
DEPD,Z m,30,31,temp3 ; m << 32+1
LDD -16(%sp),lt ; lt
LDD -8(%sp),ht ; ht
EXTRD,U temp2,32,33,temp1 ; temp1 = m&Mask >> 32-1
ADD temp3,lt,lt ; lt = lt+m
ADD,L ht,temp1,ht ; ht += temp1
ADD,DC ht,%r0,ht ; ht++
ADD C1,lt,C1 ; c1=c1+lt
ADD,DC ht,%r0,ht ; ht++
ADD C2,ht,C2 ; c2=c2+ht
ADD,DC C3,%r0,C3 ; c3++
.endm
SQR_ADD_C2 .macro A0L,A0R,A1L,A1R,C1,C2,C3
XMPYU A0L,A1R,ftemp1 ; m1 = bl*ht
FSTD ftemp1,-16(%sp) ;
XMPYU A0R,A1L,ftemp2 ; m = bh*lt
FSTD ftemp2,-8(%sp) ;
XMPYU A0R,A1R,ftemp3 ; lt = bl*lt
FSTD ftemp3,-32(%sp)
XMPYU A0L,A1L,ftemp4 ; ht = bh*ht
FSTD ftemp4,-24(%sp) ;
LDD -8(%sp),m ; r21 = m
LDD -16(%sp),m1 ; r19 = m1
ADD,L m,m1,m ; m+m1
DEPD,Z m,31,32,temp3 ; (m+m1<<32)
LDD -24(%sp),ht ; r24 = ht
CMPCLR,*>>= m,m1,%r0 ; if (m < m1)
ADD,L ht,high_one,ht ; ht+=high_one
EXTRD,U m,31,32,temp1 ; m >> 32
LDD -32(%sp),lt ; lt
ADD,L ht,temp1,ht ; ht+= m>>32
ADD lt,temp3,lt ; lt = lt+m1
ADD,DC ht,%r0,ht ; ht++
ADD ht,ht,ht ; ht=ht+ht;
ADD,DC C3,%r0,C3 ; add in carry (c3++)
ADD lt,lt,lt ; lt=lt+lt;
ADD,DC ht,%r0,ht ; add in carry (ht++)
ADD C1,lt,C1 ; c1=c1+lt
ADD,DC,*NUV ht,%r0,ht ; add in carry (ht++)
LDO 1(C3),C3 ; bump c3 if overflow,nullify otherwise
ADD C2,ht,C2 ; c2 = c2 + ht
ADD,DC C3,%r0,C3 ; add in carry (c3++)
.endm
;
;void bn_sqr_comba8(BN_ULONG *r, BN_ULONG *a)
; arg0 = r_ptr
; arg1 = a_ptr
;
bn_sqr_comba8
.PROC
.CALLINFO FRAME=128,ENTRY_GR=%r3,ARGS_SAVED,ORDERING_AWARE
.EXPORT bn_sqr_comba8,ENTRY,PRIV_LEV=3,NO_RELOCATION,LONG_RETURN
.ENTRY
.align 64
STD %r3,0(%sp) ; save r3
STD %r4,8(%sp) ; save r4
STD %r5,16(%sp) ; save r5
STD %r6,24(%sp) ; save r6
;
; Zero out carries
;
COPY %r0,c1
COPY %r0,c2
COPY %r0,c3
LDO 128(%sp),%sp ; bump stack
DEPDI,Z -1,32,33,high_mask ; Create Mask 0xffffffff80000000L
DEPDI,Z 1,31,1,high_one ; Create Value 1 << 32
;
; Load up all of the values we are going to use
;
FLDD 0(a_ptr),a0
FLDD 8(a_ptr),a1
FLDD 16(a_ptr),a2
FLDD 24(a_ptr),a3
FLDD 32(a_ptr),a4
FLDD 40(a_ptr),a5
FLDD 48(a_ptr),a6
FLDD 56(a_ptr),a7
SQR_ADD_C a0L,a0R,c1,c2,c3
STD c1,0(r_ptr) ; r[0] = c1;
COPY %r0,c1
SQR_ADD_C2 a1L,a1R,a0L,a0R,c2,c3,c1
STD c2,8(r_ptr) ; r[1] = c2;
COPY %r0,c2
SQR_ADD_C a1L,a1R,c3,c1,c2
SQR_ADD_C2 a2L,a2R,a0L,a0R,c3,c1,c2
STD c3,16(r_ptr) ; r[2] = c3;
COPY %r0,c3
SQR_ADD_C2 a3L,a3R,a0L,a0R,c1,c2,c3
SQR_ADD_C2 a2L,a2R,a1L,a1R,c1,c2,c3
STD c1,24(r_ptr) ; r[3] = c1;
COPY %r0,c1
SQR_ADD_C a2L,a2R,c2,c3,c1
SQR_ADD_C2 a3L,a3R,a1L,a1R,c2,c3,c1
SQR_ADD_C2 a4L,a4R,a0L,a0R,c2,c3,c1
STD c2,32(r_ptr) ; r[4] = c2;
COPY %r0,c2
SQR_ADD_C2 a5L,a5R,a0L,a0R,c3,c1,c2
SQR_ADD_C2 a4L,a4R,a1L,a1R,c3,c1,c2
SQR_ADD_C2 a3L,a3R,a2L,a2R,c3,c1,c2
STD c3,40(r_ptr) ; r[5] = c3;
COPY %r0,c3
SQR_ADD_C a3L,a3R,c1,c2,c3
SQR_ADD_C2 a4L,a4R,a2L,a2R,c1,c2,c3
SQR_ADD_C2 a5L,a5R,a1L,a1R,c1,c2,c3
SQR_ADD_C2 a6L,a6R,a0L,a0R,c1,c2,c3
STD c1,48(r_ptr) ; r[6] = c1;
COPY %r0,c1
SQR_ADD_C2 a7L,a7R,a0L,a0R,c2,c3,c1
SQR_ADD_C2 a6L,a6R,a1L,a1R,c2,c3,c1
SQR_ADD_C2 a5L,a5R,a2L,a2R,c2,c3,c1
SQR_ADD_C2 a4L,a4R,a3L,a3R,c2,c3,c1
STD c2,56(r_ptr) ; r[7] = c2;
COPY %r0,c2
SQR_ADD_C a4L,a4R,c3,c1,c2
SQR_ADD_C2 a5L,a5R,a3L,a3R,c3,c1,c2
SQR_ADD_C2 a6L,a6R,a2L,a2R,c3,c1,c2
SQR_ADD_C2 a7L,a7R,a1L,a1R,c3,c1,c2
STD c3,64(r_ptr) ; r[8] = c3;
COPY %r0,c3
SQR_ADD_C2 a7L,a7R,a2L,a2R,c1,c2,c3
SQR_ADD_C2 a6L,a6R,a3L,a3R,c1,c2,c3
SQR_ADD_C2 a5L,a5R,a4L,a4R,c1,c2,c3
STD c1,72(r_ptr) ; r[9] = c1;
COPY %r0,c1
SQR_ADD_C a5L,a5R,c2,c3,c1
SQR_ADD_C2 a6L,a6R,a4L,a4R,c2,c3,c1
SQR_ADD_C2 a7L,a7R,a3L,a3R,c2,c3,c1
STD c2,80(r_ptr) ; r[10] = c2;
COPY %r0,c2
SQR_ADD_C2 a7L,a7R,a4L,a4R,c3,c1,c2
SQR_ADD_C2 a6L,a6R,a5L,a5R,c3,c1,c2
STD c3,88(r_ptr) ; r[11] = c3;
COPY %r0,c3
SQR_ADD_C a6L,a6R,c1,c2,c3
SQR_ADD_C2 a7L,a7R,a5L,a5R,c1,c2,c3
STD c1,96(r_ptr) ; r[12] = c1;
COPY %r0,c1
SQR_ADD_C2 a7L,a7R,a6L,a6R,c2,c3,c1
STD c2,104(r_ptr) ; r[13] = c2;
COPY %r0,c2
SQR_ADD_C a7L,a7R,c3,c1,c2
STD c3, 112(r_ptr) ; r[14] = c3
STD c1, 120(r_ptr) ; r[15] = c1
.EXIT
LDD -104(%sp),%r6 ; restore r6
LDD -112(%sp),%r5 ; restore r5
LDD -120(%sp),%r4 ; restore r4
BVE (%rp)
LDD,MB -128(%sp),%r3
.PROCEND
;-----------------------------------------------------------------------------
;
;void bn_sqr_comba4(BN_ULONG *r, BN_ULONG *a)
; arg0 = r_ptr
; arg1 = a_ptr
;
bn_sqr_comba4
.proc
.callinfo FRAME=128,ENTRY_GR=%r3,ARGS_SAVED,ORDERING_AWARE
.EXPORT bn_sqr_comba4,ENTRY,PRIV_LEV=3,NO_RELOCATION,LONG_RETURN
.entry
.align 64
STD %r3,0(%sp) ; save r3
STD %r4,8(%sp) ; save r4
STD %r5,16(%sp) ; save r5
STD %r6,24(%sp) ; save r6
;
; Zero out carries
;
COPY %r0,c1
COPY %r0,c2
COPY %r0,c3
LDO 128(%sp),%sp ; bump stack
DEPDI,Z -1,32,33,high_mask ; Create Mask 0xffffffff80000000L
DEPDI,Z 1,31,1,high_one ; Create Value 1 << 32
;
; Load up all of the values we are going to use
;
FLDD 0(a_ptr),a0
FLDD 8(a_ptr),a1
FLDD 16(a_ptr),a2
FLDD 24(a_ptr),a3
FLDD 32(a_ptr),a4
FLDD 40(a_ptr),a5
FLDD 48(a_ptr),a6
FLDD 56(a_ptr),a7
SQR_ADD_C a0L,a0R,c1,c2,c3
STD c1,0(r_ptr) ; r[0] = c1;
COPY %r0,c1
SQR_ADD_C2 a1L,a1R,a0L,a0R,c2,c3,c1
STD c2,8(r_ptr) ; r[1] = c2;
COPY %r0,c2
SQR_ADD_C a1L,a1R,c3,c1,c2
SQR_ADD_C2 a2L,a2R,a0L,a0R,c3,c1,c2
STD c3,16(r_ptr) ; r[2] = c3;
COPY %r0,c3
SQR_ADD_C2 a3L,a3R,a0L,a0R,c1,c2,c3
SQR_ADD_C2 a2L,a2R,a1L,a1R,c1,c2,c3
STD c1,24(r_ptr) ; r[3] = c1;
COPY %r0,c1
SQR_ADD_C a2L,a2R,c2,c3,c1
SQR_ADD_C2 a3L,a3R,a1L,a1R,c2,c3,c1
STD c2,32(r_ptr) ; r[4] = c2;
COPY %r0,c2
SQR_ADD_C2 a3L,a3R,a2L,a2R,c3,c1,c2
STD c3,40(r_ptr) ; r[5] = c3;
COPY %r0,c3
SQR_ADD_C a3L,a3R,c1,c2,c3
STD c1,48(r_ptr) ; r[6] = c1;
STD c2,56(r_ptr) ; r[7] = c2;
.EXIT
LDD -104(%sp),%r6 ; restore r6
LDD -112(%sp),%r5 ; restore r5
LDD -120(%sp),%r4 ; restore r4
BVE (%rp)
LDD,MB -128(%sp),%r3
.PROCEND
;---------------------------------------------------------------------------
MUL_ADD_C .macro A0L,A0R,B0L,B0R,C1,C2,C3
XMPYU A0L,B0R,ftemp1 ; m1 = bl*ht
FSTD ftemp1,-16(%sp) ;
XMPYU A0R,B0L,ftemp2 ; m = bh*lt
FSTD ftemp2,-8(%sp) ;
XMPYU A0R,B0R,ftemp3 ; lt = bl*lt
FSTD ftemp3,-32(%sp)
XMPYU A0L,B0L,ftemp4 ; ht = bh*ht
FSTD ftemp4,-24(%sp) ;
LDD -8(%sp),m ; r21 = m
LDD -16(%sp),m1 ; r19 = m1
ADD,L m,m1,m ; m+m1
DEPD,Z m,31,32,temp3 ; (m+m1<<32)
LDD -24(%sp),ht ; r24 = ht
CMPCLR,*>>= m,m1,%r0 ; if (m < m1)
ADD,L ht,high_one,ht ; ht+=high_one
EXTRD,U m,31,32,temp1 ; m >> 32
LDD -32(%sp),lt ; lt
ADD,L ht,temp1,ht ; ht+= m>>32
ADD lt,temp3,lt ; lt = lt+m1
ADD,DC ht,%r0,ht ; ht++
ADD C1,lt,C1 ; c1=c1+lt
ADD,DC ht,%r0,ht ; bump c3 if overflow,nullify otherwise
ADD C2,ht,C2 ; c2 = c2 + ht
ADD,DC C3,%r0,C3 ; add in carry (c3++)
.endm
;
;void bn_mul_comba8(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b)
; arg0 = r_ptr
; arg1 = a_ptr
; arg2 = b_ptr
;
bn_mul_comba8
.proc
.callinfo FRAME=128,ENTRY_GR=%r3,ARGS_SAVED,ORDERING_AWARE
.EXPORT bn_mul_comba8,ENTRY,PRIV_LEV=3,NO_RELOCATION,LONG_RETURN
.entry
.align 64
STD %r3,0(%sp) ; save r3
STD %r4,8(%sp) ; save r4
STD %r5,16(%sp) ; save r5
STD %r6,24(%sp) ; save r6
FSTD %fr12,32(%sp) ; save r6
FSTD %fr13,40(%sp) ; save r7
;
; Zero out carries
;
COPY %r0,c1
COPY %r0,c2
COPY %r0,c3
LDO 128(%sp),%sp ; bump stack
DEPDI,Z 1,31,1,high_one ; Create Value 1 << 32
;
; Load up all of the values we are going to use
;
FLDD 0(a_ptr),a0
FLDD 8(a_ptr),a1
FLDD 16(a_ptr),a2
FLDD 24(a_ptr),a3
FLDD 32(a_ptr),a4
FLDD 40(a_ptr),a5
FLDD 48(a_ptr),a6
FLDD 56(a_ptr),a7
FLDD 0(b_ptr),b0
FLDD 8(b_ptr),b1
FLDD 16(b_ptr),b2
FLDD 24(b_ptr),b3
FLDD 32(b_ptr),b4
FLDD 40(b_ptr),b5
FLDD 48(b_ptr),b6
FLDD 56(b_ptr),b7
MUL_ADD_C a0L,a0R,b0L,b0R,c1,c2,c3
STD c1,0(r_ptr)
COPY %r0,c1
MUL_ADD_C a0L,a0R,b1L,b1R,c2,c3,c1
MUL_ADD_C a1L,a1R,b0L,b0R,c2,c3,c1
STD c2,8(r_ptr)
COPY %r0,c2
MUL_ADD_C a2L,a2R,b0L,b0R,c3,c1,c2
MUL_ADD_C a1L,a1R,b1L,b1R,c3,c1,c2
MUL_ADD_C a0L,a0R,b2L,b2R,c3,c1,c2
STD c3,16(r_ptr)
COPY %r0,c3
MUL_ADD_C a0L,a0R,b3L,b3R,c1,c2,c3
MUL_ADD_C a1L,a1R,b2L,b2R,c1,c2,c3
MUL_ADD_C a2L,a2R,b1L,b1R,c1,c2,c3
MUL_ADD_C a3L,a3R,b0L,b0R,c1,c2,c3
STD c1,24(r_ptr)
COPY %r0,c1
MUL_ADD_C a4L,a4R,b0L,b0R,c2,c3,c1
MUL_ADD_C a3L,a3R,b1L,b1R,c2,c3,c1
MUL_ADD_C a2L,a2R,b2L,b2R,c2,c3,c1
MUL_ADD_C a1L,a1R,b3L,b3R,c2,c3,c1
MUL_ADD_C a0L,a0R,b4L,b4R,c2,c3,c1
STD c2,32(r_ptr)
COPY %r0,c2
MUL_ADD_C a0L,a0R,b5L,b5R,c3,c1,c2
MUL_ADD_C a1L,a1R,b4L,b4R,c3,c1,c2
MUL_ADD_C a2L,a2R,b3L,b3R,c3,c1,c2
MUL_ADD_C a3L,a3R,b2L,b2R,c3,c1,c2
MUL_ADD_C a4L,a4R,b1L,b1R,c3,c1,c2
MUL_ADD_C a5L,a5R,b0L,b0R,c3,c1,c2
STD c3,40(r_ptr)
COPY %r0,c3
MUL_ADD_C a6L,a6R,b0L,b0R,c1,c2,c3
MUL_ADD_C a5L,a5R,b1L,b1R,c1,c2,c3
MUL_ADD_C a4L,a4R,b2L,b2R,c1,c2,c3
MUL_ADD_C a3L,a3R,b3L,b3R,c1,c2,c3
MUL_ADD_C a2L,a2R,b4L,b4R,c1,c2,c3
MUL_ADD_C a1L,a1R,b5L,b5R,c1,c2,c3
MUL_ADD_C a0L,a0R,b6L,b6R,c1,c2,c3
STD c1,48(r_ptr)
COPY %r0,c1
MUL_ADD_C a0L,a0R,b7L,b7R,c2,c3,c1
MUL_ADD_C a1L,a1R,b6L,b6R,c2,c3,c1
MUL_ADD_C a2L,a2R,b5L,b5R,c2,c3,c1
MUL_ADD_C a3L,a3R,b4L,b4R,c2,c3,c1
MUL_ADD_C a4L,a4R,b3L,b3R,c2,c3,c1
MUL_ADD_C a5L,a5R,b2L,b2R,c2,c3,c1
MUL_ADD_C a6L,a6R,b1L,b1R,c2,c3,c1
MUL_ADD_C a7L,a7R,b0L,b0R,c2,c3,c1
STD c2,56(r_ptr)
COPY %r0,c2
MUL_ADD_C a7L,a7R,b1L,b1R,c3,c1,c2
MUL_ADD_C a6L,a6R,b2L,b2R,c3,c1,c2
MUL_ADD_C a5L,a5R,b3L,b3R,c3,c1,c2
MUL_ADD_C a4L,a4R,b4L,b4R,c3,c1,c2
MUL_ADD_C a3L,a3R,b5L,b5R,c3,c1,c2
MUL_ADD_C a2L,a2R,b6L,b6R,c3,c1,c2
MUL_ADD_C a1L,a1R,b7L,b7R,c3,c1,c2
STD c3,64(r_ptr)
COPY %r0,c3
MUL_ADD_C a2L,a2R,b7L,b7R,c1,c2,c3
MUL_ADD_C a3L,a3R,b6L,b6R,c1,c2,c3
MUL_ADD_C a4L,a4R,b5L,b5R,c1,c2,c3
MUL_ADD_C a5L,a5R,b4L,b4R,c1,c2,c3
MUL_ADD_C a6L,a6R,b3L,b3R,c1,c2,c3
MUL_ADD_C a7L,a7R,b2L,b2R,c1,c2,c3
STD c1,72(r_ptr)
COPY %r0,c1
MUL_ADD_C a7L,a7R,b3L,b3R,c2,c3,c1
MUL_ADD_C a6L,a6R,b4L,b4R,c2,c3,c1
MUL_ADD_C a5L,a5R,b5L,b5R,c2,c3,c1
MUL_ADD_C a4L,a4R,b6L,b6R,c2,c3,c1
MUL_ADD_C a3L,a3R,b7L,b7R,c2,c3,c1
STD c2,80(r_ptr)
COPY %r0,c2
MUL_ADD_C a4L,a4R,b7L,b7R,c3,c1,c2
MUL_ADD_C a5L,a5R,b6L,b6R,c3,c1,c2
MUL_ADD_C a6L,a6R,b5L,b5R,c3,c1,c2
MUL_ADD_C a7L,a7R,b4L,b4R,c3,c1,c2
STD c3,88(r_ptr)
COPY %r0,c3
MUL_ADD_C a7L,a7R,b5L,b5R,c1,c2,c3
MUL_ADD_C a6L,a6R,b6L,b6R,c1,c2,c3
MUL_ADD_C a5L,a5R,b7L,b7R,c1,c2,c3
STD c1,96(r_ptr)
COPY %r0,c1
MUL_ADD_C a6L,a6R,b7L,b7R,c2,c3,c1
MUL_ADD_C a7L,a7R,b6L,b6R,c2,c3,c1
STD c2,104(r_ptr)
COPY %r0,c2
MUL_ADD_C a7L,a7R,b7L,b7R,c3,c1,c2
STD c3,112(r_ptr)
STD c1,120(r_ptr)
.EXIT
FLDD -88(%sp),%fr13
FLDD -96(%sp),%fr12
LDD -104(%sp),%r6 ; restore r6
LDD -112(%sp),%r5 ; restore r5
LDD -120(%sp),%r4 ; restore r4
BVE (%rp)
LDD,MB -128(%sp),%r3
.PROCEND
;-----------------------------------------------------------------------------
;
;void bn_mul_comba4(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b)
; arg0 = r_ptr
; arg1 = a_ptr
; arg2 = b_ptr
;
bn_mul_comba4
.proc
.callinfo FRAME=128,ENTRY_GR=%r3,ARGS_SAVED,ORDERING_AWARE
.EXPORT bn_mul_comba4,ENTRY,PRIV_LEV=3,NO_RELOCATION,LONG_RETURN
.entry
.align 64
STD %r3,0(%sp) ; save r3
STD %r4,8(%sp) ; save r4
STD %r5,16(%sp) ; save r5
STD %r6,24(%sp) ; save r6
FSTD %fr12,32(%sp) ; save r6
FSTD %fr13,40(%sp) ; save r7
;
; Zero out carries
;
COPY %r0,c1
COPY %r0,c2
COPY %r0,c3
LDO 128(%sp),%sp ; bump stack
DEPDI,Z 1,31,1,high_one ; Create Value 1 << 32
;
; Load up all of the values we are going to use
;
FLDD 0(a_ptr),a0
FLDD 8(a_ptr),a1
FLDD 16(a_ptr),a2
FLDD 24(a_ptr),a3
FLDD 0(b_ptr),b0
FLDD 8(b_ptr),b1
FLDD 16(b_ptr),b2
FLDD 24(b_ptr),b3
MUL_ADD_C a0L,a0R,b0L,b0R,c1,c2,c3
STD c1,0(r_ptr)
COPY %r0,c1
MUL_ADD_C a0L,a0R,b1L,b1R,c2,c3,c1
MUL_ADD_C a1L,a1R,b0L,b0R,c2,c3,c1
STD c2,8(r_ptr)
COPY %r0,c2
MUL_ADD_C a2L,a2R,b0L,b0R,c3,c1,c2
MUL_ADD_C a1L,a1R,b1L,b1R,c3,c1,c2
MUL_ADD_C a0L,a0R,b2L,b2R,c3,c1,c2
STD c3,16(r_ptr)
COPY %r0,c3
MUL_ADD_C a0L,a0R,b3L,b3R,c1,c2,c3
MUL_ADD_C a1L,a1R,b2L,b2R,c1,c2,c3
MUL_ADD_C a2L,a2R,b1L,b1R,c1,c2,c3
MUL_ADD_C a3L,a3R,b0L,b0R,c1,c2,c3
STD c1,24(r_ptr)
COPY %r0,c1
MUL_ADD_C a3L,a3R,b1L,b1R,c2,c3,c1
MUL_ADD_C a2L,a2R,b2L,b2R,c2,c3,c1
MUL_ADD_C a1L,a1R,b3L,b3R,c2,c3,c1
STD c2,32(r_ptr)
COPY %r0,c2
MUL_ADD_C a2L,a2R,b3L,b3R,c3,c1,c2
MUL_ADD_C a3L,a3R,b2L,b2R,c3,c1,c2
STD c3,40(r_ptr)
COPY %r0,c3
MUL_ADD_C a3L,a3R,b3L,b3R,c1,c2,c3
STD c1,48(r_ptr)
STD c2,56(r_ptr)
.EXIT
FLDD -88(%sp),%fr13
FLDD -96(%sp),%fr12
LDD -104(%sp),%r6 ; restore r6
LDD -112(%sp),%r5 ; restore r5
LDD -120(%sp),%r4 ; restore r4
BVE (%rp)
LDD,MB -128(%sp),%r3
.PROCEND
;--- not PIC .SPACE $TEXT$
;--- not PIC .SUBSPA $CODE$
;--- not PIC .SPACE $PRIVATE$,SORT=16
;--- not PIC .IMPORT $global$,DATA
;--- not PIC .SPACE $TEXT$
;--- not PIC .SUBSPA $CODE$
;--- not PIC .SUBSPA $LIT$,ACCESS=0x2c
;--- not PIC C$7
;--- not PIC .ALIGN 8
;--- not PIC .STRINGZ "Division would overflow (%d)\n"
.END