diff options
Diffstat (limited to 'crypto')
-rw-r--r-- | crypto/bn/asm/ppc64-mont.pl | 687 |
1 files changed, 334 insertions, 353 deletions
diff --git a/crypto/bn/asm/ppc64-mont.pl b/crypto/bn/asm/ppc64-mont.pl index 56ef0a24ab..405f878622 100644 --- a/crypto/bn/asm/ppc64-mont.pl +++ b/crypto/bn/asm/ppc64-mont.pl @@ -9,12 +9,38 @@ # December 2007 +# The reason for undertaken effort is basically following. Even though +# Power 6 CPU operates at incredible 4.7GHz clock frequency, its PKI +# performance was observed to be less than impressive, essentially as +# fast as 1.8GHz PPC970, or 2.6 times(!) slower than one would hope. +# Well, it's not surprising that IBM had to make some sacrifices to +# boost the clock frequency that much, but no overall improvement? +# Having observed how much difference did switching to FPU make on +# UltraSPARC, playing same stunt on Power 6 appeared appropriate... +# Unfortunately the resulting performance improvement is not as +# impressive, ~30%, and in absolute terms is still very far from what +# one would expect from 4.7GHz CPU. There is a chance that I'm doing +# something wrong, but in the lack of assembler level micro-profiling +# data or at least decent platform guide I can't tell... Or better +# results might be achieved with VMX... Anyway, this module provides +# *worse* performance on other PowerPC implementations, ~40-15% slower +# on PPC970 depending on key length and ~40% slower on Power 5 for all +# key lengths. As it's obviously inappropriate as "best all-round" +# alternative, it has to be complemented with run-time CPU family +# detection. Oh! It should also be noted that unlike other PowerPC +# implementation IALU ppc-mont.pl module performs *suboptimaly* on +# >=1024-bit key lengths on Power 6. It should also be noted that +# *everything* said so far applies to 64-bit builds! As far as 32-bit +# application executed on 64-bit CPU goes, this module is likely to +# become preferred choice, because it's easy to adapt it for such +# case and *is* faster than 32-bit ppc-mont.pl on *all* processors. + $output = shift; if ($output =~ /32\-mont\.s/) { $SIZE_T=4; $RZONE= 224; - $FRAME= $SIZE_T*16+8*12; + $FRAME= $SIZE_T*12+8*12; $fname= "bn_mul_mont_ppc64"; $STUX= "stwux"; # store indexed and update @@ -24,7 +50,7 @@ if ($output =~ /32\-mont\.s/) { } elsif ($output =~ /64\-mont\.s/) { $SIZE_T=8; $RZONE= 288; - $FRAME= $SIZE_T*16+8*12; + $FRAME= $SIZE_T*12+8*12; $fname= "bn_mul_mont"; # same as above, but 64-bit mnemonics... @@ -36,8 +62,10 @@ if ($output =~ /32\-mont\.s/) { ( defined shift || open STDOUT,"| $^X ../perlasm/ppc-xlate.pl $output" ) || die "can't call ../perlasm/ppc-xlate.pl: $!"; -$TRANSFER=8*8; +$FRAME=($FRAME+63)&~63; +$TRANSFER=16*8; +$carry="r0"; $sp="r1"; $toc="r2"; $rp="r3"; $ovf="r3"; @@ -51,20 +79,16 @@ $tp="r10"; $j="r11"; $i="r12"; # non-volatile registers -$ap_l="r14"; -$ap_h="r15"; -$np_l="r16"; -$np_h="r17"; -$carry="r18"; -$a0="r19"; # ap[0] -$t0="r20"; -$t1="r21"; -$t2="r22"; -$t3="r23"; -$t4="r24"; -$t5="r25"; -$t6="r26"; -$t7="r27"; +$nap_d="r14"; # interleaved ap and np in double format +$a0="r15"; # ap[0] +$t0="r16"; # temporary registers +$t1="r17"; +$t2="r18"; +$t3="r19"; +$t4="r20"; +$t5="r21"; +$t6="r22"; +$t7="r23"; # PPC offers enough register bank capacity to unroll inner loops twice # @@ -122,15 +146,18 @@ $T3b="f25"; # +-------------------------------+ # | | # +-------------------------------+ -# | 14 saved gpr, r14-r27 | +# | 10 saved gpr, r14-r23 | # . . # . . -# +16*size_t +-------------------------------+ +# +12*size_t +-------------------------------+ # | 12 saved fpr, f14-f25 | # . . # . . # +12*8 +-------------------------------+ -# | 8 gpr<->fpr transfer zone | +# | padding to 64 byte boundary | +# . . +# +-------------------------------+ +# | 16 gpr<->fpr transfer zone | # . . # . . # +8*8 +-------------------------------+ @@ -141,22 +168,10 @@ $T3b="f25"; # . . # . . # +(num+1)*8 +-------------------------------+ -# | double a_lo[num] | -# . . -# . . -# . . -# +num*8 +-------------------------------+ -# | double a_hi[num] | -# . . -# . . -# . . -# +num*8 +-------------------------------+ -# | double n_lo[num] | -# . . +# | padding to 64 byte boundary | # . . -# . . -# +num*8 +-------------------------------+ -# | double n_hi[num] | +# +-------------------------------+ +# | double nap_d[4*num] | # . . # . . # . . @@ -167,7 +182,7 @@ $code=<<___; .text .globl .$fname -.align 4 +.align 5 .$fname: cmpwi $num,4 mr $rp,r3 ; $rp is reassigned @@ -180,7 +195,7 @@ $code=<<___; li $i,-4096 slwi $tp,$num,2 ; place for {an}p_{lh}[num], i.e. 4*num add $tp,$tp,$num ; place for tp[num+1] - addi $tp,$tp,`$FRAME+$TRANSFER+8+$RZONE` + addi $tp,$tp,`$FRAME+$TRANSFER+8+64+$RZONE` subf $tp,$tp,$sp ; $sp-$tp and $tp,$tp,$i ; minimize TLB usage subf $tp,$sp,$tp ; $tp-$sp @@ -196,41 +211,37 @@ $code=<<___; $PUSH r21,`9*$SIZE_T`($sp) $PUSH r22,`10*$SIZE_T`($sp) $PUSH r23,`11*$SIZE_T`($sp) - $PUSH r24,`12*$SIZE_T`($sp) - $PUSH r25,`13*$SIZE_T`($sp) - $PUSH r26,`14*$SIZE_T`($sp) - $PUSH r27,`15*$SIZE_T`($sp) - stfd f14,`16*$SIZE_T+0`($sp) - stfd f15,`16*$SIZE_T+8`($sp) - stfd f16,`16*$SIZE_T+16`($sp) - stfd f17,`16*$SIZE_T+24`($sp) - stfd f18,`16*$SIZE_T+32`($sp) - stfd f19,`16*$SIZE_T+40`($sp) - stfd f20,`16*$SIZE_T+48`($sp) - stfd f21,`16*$SIZE_T+56`($sp) - stfd f22,`16*$SIZE_T+64`($sp) - stfd f23,`16*$SIZE_T+72`($sp) - stfd f24,`16*$SIZE_T+80`($sp) - stfd f25,`16*$SIZE_T+88`($sp) - std r0,$FRAME($sp) ; r0 is still 0 - lfd $dota,$FRAME($sp) - lfd $dotb,$FRAME($sp) - - addi $tp,$sp,`$FRAME+$TRANSFER` - ; note that {an}p_{lh} are off by 1, this is because they - ; are used with stfdu/lfdu instruction... - add $ap_l,$tp,$num - add $ap_h,$ap_l,$num - add $np_l,$ap_h,$num - add $np_h,$np_l,$num + stfd f14,`12*$SIZE_T+0`($sp) + stfd f15,`12*$SIZE_T+8`($sp) + stfd f16,`12*$SIZE_T+16`($sp) + stfd f17,`12*$SIZE_T+24`($sp) + stfd f18,`12*$SIZE_T+32`($sp) + stfd f19,`12*$SIZE_T+40`($sp) + stfd f20,`12*$SIZE_T+48`($sp) + stfd f21,`12*$SIZE_T+56`($sp) + stfd f22,`12*$SIZE_T+64`($sp) + stfd f23,`12*$SIZE_T+72`($sp) + stfd f24,`12*$SIZE_T+80`($sp) + stfd f25,`12*$SIZE_T+88`($sp) ld $a0,0($ap) ; pull ap[0] value ld $n0,0($n0) ; pull n0[0] value - srwi $j,$num,`3+1` ; counter register, num/2 - ld $t3,0($bp) ; bp[0] + + addi $tp,$sp,`$FRAME+$TRANSFER+8+64` + li $i,-64 + add $nap_d,$tp,$num + and $nap_d,$nap_d,$i ; align to 64 bytes + mulld $t7,$a0,$t3 ; ap[0]*bp[0] + ; nap_d is off by 1, because it's used with stfdu/lfdu + addi $nap_d,$nap_d,-8 + srwi $j,$num,`3+1` ; counter register, num/2 mulld $t7,$t7,$n0 ; tp[0]*n0 + addi $j,$j,-1 + addi $tp,$sp,`$FRAME+$TRANSFER-8` + li $carry,0 + mtctr $j ; transfer bp[0] to FPU as 4x16-bit values extrdi $t0,$t3,16,48 @@ -241,15 +252,6 @@ $code=<<___; std $t1,`$FRAME+8`($sp) std $t2,`$FRAME+16`($sp) std $t3,`$FRAME+24`($sp) - lfd $ba,`$FRAME+0`($sp) - lfd $bb,`$FRAME+8`($sp) - lfd $bc,`$FRAME+16`($sp) - lfd $bd,`$FRAME+24`($sp) - fcfid $ba,$ba - fcfid $bb,$bb - fcfid $bc,$bc - fcfid $bd,$bd - ; transfer (ap[0]*bp[0])*n0 to FPU as 4x16-bit values extrdi $t4,$t7,16,48 extrdi $t5,$t7,16,32 @@ -259,72 +261,74 @@ $code=<<___; std $t5,`$FRAME+40`($sp) std $t6,`$FRAME+48`($sp) std $t7,`$FRAME+56`($sp) + lwz $t0,4($ap) ; load a[j] as 32-bit word pair + lwz $t1,0($ap) + lwz $t2,4($np) ; load n[j] as 32-bit word pair + lwz $t3,0($np) + lwz $t4,12($ap) ; load a[j+1] as 32-bit word pair + lwz $t5,8($ap) + lwz $t6,12($np) ; load n[j+1] as 32-bit word pair + lwz $t7,8($np) + lfd $ba,`$FRAME+0`($sp) + lfd $bb,`$FRAME+8`($sp) + lfd $bc,`$FRAME+16`($sp) + lfd $bd,`$FRAME+24`($sp) lfd $na,`$FRAME+32`($sp) lfd $nb,`$FRAME+40`($sp) lfd $nc,`$FRAME+48`($sp) lfd $nd,`$FRAME+56`($sp) + std $t0,`$FRAME+64`($sp) + std $t1,`$FRAME+72`($sp) + std $t2,`$FRAME+80`($sp) + std $t3,`$FRAME+88`($sp) + std $t4,`$FRAME+96`($sp) + std $t5,`$FRAME+104`($sp) + std $t6,`$FRAME+112`($sp) + std $t7,`$FRAME+120`($sp) + fcfid $ba,$ba + fcfid $bb,$bb + fcfid $bc,$bc + fcfid $bd,$bd fcfid $na,$na fcfid $nb,$nb fcfid $nc,$nc fcfid $nd,$nd - addi $j,$j,-1 - - addi $tp,$sp,`$FRAME+$TRANSFER-8` - li $carry,0 - mtctr $j - lwz $t0,4($ap) ; load a[j] as 32-bit word pair - lwz $t1,0($ap) - lwz $t2,4($np) ; load n[j] as 32-bit word pair - lwz $t3,0($np) - std $t0,`$FRAME+0`($sp) - std $t1,`$FRAME+8`($sp) - std $t2,`$FRAME+16`($sp) - std $t3,`$FRAME+24`($sp) - lfd $A0,`$FRAME+0`($sp) - lfd $A1,`$FRAME+8`($sp) - lfd $N0,`$FRAME+16`($sp) - lfd $N1,`$FRAME+24`($sp) + lfd $A0,`$FRAME+64`($sp) + lfd $A1,`$FRAME+72`($sp) + lfd $N0,`$FRAME+80`($sp) + lfd $N1,`$FRAME+88`($sp) + lfd $A2,`$FRAME+96`($sp) + lfd $A3,`$FRAME+104`($sp) + lfd $N2,`$FRAME+112`($sp) + lfd $N3,`$FRAME+120`($sp) fcfid $A0,$A0 fcfid $A1,$A1 fcfid $N0,$N0 fcfid $N1,$N1 - stfdu $A0,8($ap_l) ; save a[j] in double format - stfdu $A1,8($ap_h) - stfdu $N0,8($np_l) ; save n[j] in double format - stfdu $N1,8($np_h) - - lwz $t4,12($ap) ; load a[j+1] as 32-bit word pair - lwz $t5,8($ap) - lwz $t6,12($np) ; load n[j+1] as 32-bit word pair - lwz $t7,8($np) - std $t4,`$FRAME+32`($sp) - std $t5,`$FRAME+40`($sp) - std $t6,`$FRAME+48`($sp) - std $t7,`$FRAME+56`($sp) - lfd $A2,`$FRAME+32`($sp) - lfd $A3,`$FRAME+40`($sp) - lfd $N2,`$FRAME+48`($sp) - lfd $N3,`$FRAME+56`($sp) fcfid $A2,$A2 fcfid $A3,$A3 fcfid $N2,$N2 fcfid $N3,$N3 - stfdu $A2,8($ap_l) ; save a[j+1] in double format - stfdu $A3,8($ap_h) - stfdu $N2,8($np_l) ; save n[j+1] in double format - stfdu $N3,8($np_h) addi $ap,$ap,16 addi $np,$np,16 - fmadd $T0a,$A0,$ba,$dota - fmadd $T0b,$A0,$bb,$dotb fmul $T1a,$A1,$ba fmul $T1b,$A1,$bb + stfd $A0,8($nap_d) ; save a[j] in double format + stfd $A1,16($nap_d) fmul $T2a,$A2,$ba fmul $T2b,$A2,$bb + stfd $N0,24($nap_d) ; save n[j] in double format + stfd $N1,32($nap_d) fmul $T3a,$A3,$ba fmul $T3b,$A3,$bb + stfd $A2,40($nap_d) ; save a[j+1] in double format + stfd $A3,48($nap_d) + fmul $T0a,$A0,$ba + fmul $T0b,$A0,$bb + stfd $N2,56($nap_d) ; save n[j+1] in double format + stfdu $N3,64($nap_d) fmadd $T1a,$A0,$bc,$T1a fmadd $T1b,$A0,$bd,$T1b @@ -335,14 +339,14 @@ $code=<<___; fmul $dota,$A3,$bc fmul $dotb,$A3,$bd - fmadd $T0a,$N0,$na,$T0a - fmadd $T0b,$N0,$nb,$T0b fmadd $T1a,$N1,$na,$T1a fmadd $T1b,$N1,$nb,$T1b fmadd $T2a,$N2,$na,$T2a fmadd $T2b,$N2,$nb,$T2b fmadd $T3a,$N3,$na,$T3a fmadd $T3b,$N3,$nb,$T3b + fmadd $T0a,$N0,$na,$T0a + fmadd $T0b,$N0,$nb,$T0b fmadd $T1a,$N0,$nc,$T1a fmadd $T1b,$N0,$nd,$T1b @@ -370,8 +374,25 @@ $code=<<___; stfd $T2b,`$FRAME+40`($sp) stfd $T3a,`$FRAME+48`($sp) stfd $T3b,`$FRAME+56`($sp) -.align 4 + +.align 5 L1st: + lwz $t0,4($ap) ; load a[j] as 32-bit word pair + lwz $t1,0($ap) + lwz $t2,4($np) ; load n[j] as 32-bit word pair + lwz $t3,0($np) + lwz $t4,12($ap) ; load a[j+1] as 32-bit word pair + lwz $t5,8($ap) + lwz $t6,12($np) ; load n[j+1] as 32-bit word pair + lwz $t7,8($np) + std $t0,`$FRAME+64`($sp) + std $t1,`$FRAME+72`($sp) + std $t2,`$FRAME+80`($sp) + std $t3,`$FRAME+88`($sp) + std $t4,`$FRAME+96`($sp) + std $t5,`$FRAME+104`($sp) + std $t6,`$FRAME+112`($sp) + std $t7,`$FRAME+120`($sp) ld $t0,`$FRAME+0`($sp) ld $t1,`$FRAME+8`($sp) ld $t2,`$FRAME+16`($sp) @@ -380,122 +401,99 @@ L1st: ld $t5,`$FRAME+40`($sp) ld $t6,`$FRAME+48`($sp) ld $t7,`$FRAME+56`($sp) - - add $t0,$t0,$carry ; can not overflow - srdi $carry,$t0,16 - add $t1,$t1,$carry - srdi $carry,$t1,16 - add $t2,$t2,$carry - srdi $carry,$t2,16 - add $t3,$t3,$carry - srdi $carry,$t3,16 - add $t4,$t4,$carry - srdi $carry,$t4,16 - add $t5,$t5,$carry - srdi $carry,$t5,16 - add $t6,$t6,$carry - srdi $carry,$t6,16 - add $t7,$t7,$carry - - insrdi $t0,$t1,16,32 - insrdi $t0,$t2,16,16 - insrdi $t0,$t3,16,0 ; 0..63 bits - insrdi $t4,$t5,16,32 - insrdi $t4,$t6,16,16 - insrdi $t4,$t7,16,0 ; 64..127 bits - srdi $carry,$t7,16 ; upper 33 bits - - std $t0,8($tp) ; tp[j-1] - stdu $t4,16($tp) ; tp[j] - - lwz $t0,4($ap) ; load a[j] as 32-bit word pair - lwz $t1,0($ap) - lwz $t2,4($np) ; load n[j] as 32-bit word pair - lwz $t3,0($np) - std $t0,`$FRAME+0`($sp) - std $t1,`$FRAME+8`($sp) - std $t2,`$FRAME+16`($sp) - std $t3,`$FRAME+24`($sp) - lfd $A0,`$FRAME+0`($sp) - lfd $A1,`$FRAME+8`($sp) - lfd $N0,`$FRAME+16`($sp) - lfd $N1,`$FRAME+24`($sp) + lfd $A0,`$FRAME+64`($sp) + lfd $A1,`$FRAME+72`($sp) + lfd $N0,`$FRAME+80`($sp) + lfd $N1,`$FRAME+88`($sp) + lfd $A2,`$FRAME+96`($sp) + lfd $A3,`$FRAME+104`($sp) + lfd $N2,`$FRAME+112`($sp) + lfd $N3,`$FRAME+120`($sp) fcfid $A0,$A0 fcfid $A1,$A1 fcfid $N0,$N0 fcfid $N1,$N1 - stfdu $A0,8($ap_l) ; save a[j] in double format - stfdu $A1,8($ap_h) - stfdu $N0,8($np_l) ; save n[j] in double format - stfdu $N1,8($np_h) - - lwz $t4,12($ap) ; load a[j+1] as 32-bit word pair - lwz $t5,8($ap) - lwz $t6,12($np) ; load n[j+1] as 32-bit word pair - lwz $t7,8($np) - std $t4,`$FRAME+32`($sp) - std $t5,`$FRAME+40`($sp) - std $t6,`$FRAME+48`($sp) - std $t7,`$FRAME+56`($sp) - lfd $A2,`$FRAME+32`($sp) - lfd $A3,`$FRAME+40`($sp) - lfd $N2,`$FRAME+48`($sp) - lfd $N3,`$FRAME+56`($sp) fcfid $A2,$A2 fcfid $A3,$A3 fcfid $N2,$N2 fcfid $N3,$N3 - stfdu $A2,8($ap_l) ; save a[j+1] in double format - stfdu $A3,8($ap_h) - stfdu $N2,8($np_l) ; save n[j+1] in double format - stfdu $N3,8($np_h) addi $ap,$ap,16 addi $np,$np,16 - fmadd $T0a,$A0,$ba,$dota - fmadd $T0b,$A0,$bb,$dotb fmul $T1a,$A1,$ba fmul $T1b,$A1,$bb + stfd $A0,8($nap_d) ; save a[j] in double format + stfd $A1,16($nap_d) fmul $T2a,$A2,$ba fmul $T2b,$A2,$bb + stfd $N0,24($nap_d) ; save n[j] in double format + stfd $N1,32($nap_d) + add $t0,$t0,$carry ; can not overflow fmul $T3a,$A3,$ba fmul $T3b,$A3,$bb + stfd $A2,40($nap_d) ; save a[j+1] in double format + stfd $A3,48($nap_d) + fmadd $T0a,$A0,$ba,$dota + fmadd $T0b,$A0,$bb,$dotb + stfd $N2,56($nap_d) ; save n[j+1] in double format + stfdu $N3,64($nap_d) + srdi $carry,$t0,16 + add $t1,$t1,$carry fmadd $T1a,$A0,$bc,$T1a fmadd $T1b,$A0,$bd,$T1b fmadd $T2a,$A1,$bc,$T2a fmadd $T2b,$A1,$bd,$T2b + srdi $carry,$t1,16 + insrdi $t0,$t1,16,32 fmadd $T3a,$A2,$bc,$T3a fmadd $T3b,$A2,$bd,$T3b fmul $dota,$A3,$bc fmul $dotb,$A3,$bd + add $t2,$t2,$carry - fmadd $T0a,$N0,$na,$T0a - fmadd $T0b,$N0,$nb,$T0b + srdi $carry,$t2,16 + insrdi $t0,$t2,16,16 fmadd $T1a,$N1,$na,$T1a fmadd $T1b,$N1,$nb,$T1b fmadd $T2a,$N2,$na,$T2a fmadd $T2b,$N2,$nb,$T2b + add $t3,$t3,$carry fmadd $T3a,$N3,$na,$T3a fmadd $T3b,$N3,$nb,$T3b + fmadd $T0a,$N0,$na,$T0a + fmadd $T0b,$N0,$nb,$T0b + srdi $carry,$t3,16 + insrdi $t0,$t3,16,0 ; 0..63 bits + add $t4,$t4,$carry fmadd $T1a,$N0,$nc,$T1a fmadd $T1b,$N0,$nd,$T1b fmadd $T2a,$N1,$nc,$T2a fmadd $T2b,$N1,$nd,$T2b + srdi $carry,$t4,16 fmadd $T3a,$N2,$nc,$T3a fmadd $T3b,$N2,$nd,$T3b fmadd $dota,$N3,$nc,$dota fmadd $dotb,$N3,$nd,$dotb + add $t5,$t5,$carry + srdi $carry,$t5,16 + insrdi $t4,$t5,16,32 fctid $T0a,$T0a fctid $T0b,$T0b + add $t6,$t6,$carry fctid $T1a,$T1a fctid $T1b,$T1b + srdi $carry,$t6,16 + insrdi $t4,$t6,16,16 fctid $T2a,$T2a fctid $T2b,$T2b + add $t7,$t7,$carry fctid $T3a,$T3a fctid $T3b,$T3b + insrdi $t4,$t7,16,0 ; 64..127 bits + srdi $carry,$t7,16 ; upper 33 bits stfd $T0a,`$FRAME+0`($sp) stfd $T0b,`$FRAME+8`($sp) @@ -505,7 +503,12 @@ L1st: stfd $T2b,`$FRAME+40`($sp) stfd $T3a,`$FRAME+48`($sp) stfd $T3b,`$FRAME+56`($sp) + std $t0,8($tp) ; tp[j-1] + stdu $t4,16($tp) ; tp[j] bdnz- L1st + + fctid $dota,$dota + fctid $dotb,$dotb ld $t0,`$FRAME+0`($sp) ld $t1,`$FRAME+8`($sp) @@ -515,62 +518,61 @@ L1st: ld $t5,`$FRAME+40`($sp) ld $t6,`$FRAME+48`($sp) ld $t7,`$FRAME+56`($sp) + stfd $dota,`$FRAME+64`($sp) + stfd $dotb,`$FRAME+72`($sp) add $t0,$t0,$carry ; can not overflow srdi $carry,$t0,16 add $t1,$t1,$carry srdi $carry,$t1,16 + insrdi $t0,$t1,16,32 add $t2,$t2,$carry srdi $carry,$t2,16 + insrdi $t0,$t2,16,16 add $t3,$t3,$carry srdi $carry,$t3,16 + insrdi $t0,$t3,16,0 ; 0..63 bits add $t4,$t4,$carry srdi $carry,$t4,16 add $t5,$t5,$carry srdi $carry,$t5,16 + insrdi $t4,$t5,16,32 add $t6,$t6,$carry srdi $carry,$t6,16 - add $t7,$t7,$carry - - insrdi $t0,$t1,16,32 - insrdi $t0,$t2,16,16 - insrdi $t0,$t3,16,0 ; 0..63 bits - insrdi $t4,$t5,16,32 insrdi $t4,$t6,16,16 + add $t7,$t7,$carry insrdi $t4,$t7,16,0 ; 64..127 bits srdi $carry,$t7,16 ; upper 33 bits + ld $t6,`$FRAME+64`($sp) + ld $t7,`$FRAME+72`($sp) std $t0,8($tp) ; tp[j-1] stdu $t4,16($tp) ; tp[j] - - fctid $dota,$dota - fctid $dotb,$dotb - stfd $dota,`$FRAME+0`($sp) - stfd $dotb,`$FRAME+8`($sp) - ld $t0,`$FRAME+0`($sp) - ld $t1,`$FRAME+8`($sp) - add $t0,$t0,$carry ; can not overflow - srdi $carry,$t0,16 - add $t1,$t1,$carry - insrdi $t0,$t1,48,0 - srdi $ovf,$t1,48 - std $t0,8($tp) ; tp[num-1] - - subf $ap_l,$num,$ap_l ; rewind pointers - subf $ap_h,$num,$ap_h - subf $np_l,$num,$np_l - subf $np_h,$num,$np_h + + add $t6,$t6,$carry ; can not overflow + srdi $carry,$t6,16 + add $t7,$t7,$carry + insrdi $t6,$t7,48,0 + srdi $ovf,$t7,48 + std $t6,8($tp) ; tp[num-1] + + slwi $t7,$num,2 + subf $nap_d,$t7,$nap_d ; rewind pointer li $i,8 ; i=1 -.align 4 +.align 5 Louter: ldx $t3,$bp,$i ; bp[i] - ld $t0,`$FRAME+$TRANSFER+8`($sp) ; tp[0] + ld $t6,`$FRAME+$TRANSFER+8`($sp) ; tp[0] mulld $t7,$a0,$t3 ; ap[0]*bp[i] - add $t7,$t7,$t0 ; ap[0]*bp[i]+tp[0] + + addi $tp,$sp,`$FRAME+$TRANSFER` + add $t7,$t7,$t6 ; ap[0]*bp[i]+tp[0] + li $carry,0 mulld $t7,$t7,$n0 ; tp[0]*n0 + mtctr $j - ; transfer b[i] to FPU as 4x16-bit values + ; transfer bp[i] to FPU as 4x16-bit values extrdi $t0,$t3,16,48 extrdi $t1,$t3,16,32 extrdi $t2,$t3,16,16 @@ -579,16 +581,7 @@ Louter: std $t1,`$FRAME+8`($sp) std $t2,`$FRAME+16`($sp) std $t3,`$FRAME+24`($sp) - lfd $ba,`$FRAME+0`($sp) - lfd $bb,`$FRAME+8`($sp) - lfd $bc,`$FRAME+16`($sp) - lfd $bd,`$FRAME+24`($sp) - fcfid $ba,$ba - fcfid $bb,$bb - fcfid $bc,$bc - fcfid $bd,$bd - - ; transfer (ap[0]*b[i]+t[0])*n0 to FPU as 4x16-bit values + ; transfer (ap[0]*bp[i]+tp[0])*n0 to FPU as 4x16-bit values extrdi $t4,$t7,16,48 extrdi $t5,$t7,16,32 extrdi $t6,$t7,16,16 @@ -597,38 +590,42 @@ Louter: std $t5,`$FRAME+40`($sp) std $t6,`$FRAME+48`($sp) std $t7,`$FRAME+56`($sp) + + lfd $A0,8($nap_d) ; load a[j] in double format + lfd $A1,16($nap_d) + lfd $N0,24($nap_d) ; load n[j] in double format + lfd $N1,32($nap_d) + lfd $A2,40($nap_d) ; load a[j+1] in double format + lfd $A3,48($nap_d) + lfd $N2,56($nap_d) ; load n[j+1] in double format + lfdu $N3,64($nap_d) + + lfd $ba,`$FRAME+0`($sp) + lfd $bb,`$FRAME+8`($sp) + lfd $bc,`$FRAME+16`($sp) + lfd $bd,`$FRAME+24`($sp) lfd $na,`$FRAME+32`($sp) lfd $nb,`$FRAME+40`($sp) lfd $nc,`$FRAME+48`($sp) lfd $nd,`$FRAME+56`($sp) + + fcfid $ba,$ba + fcfid $bb,$bb + fcfid $bc,$bc + fcfid $bd,$bd fcfid $na,$na fcfid $nb,$nb fcfid $nc,$nc fcfid $nd,$nd - - addi $tp,$sp,`$FRAME+$TRANSFER` - fsub $dota,$dota,$dota - fsub $dotb,$dotb,$dotb - li $carry,0 - mtctr $j - lfdu $A0,8($ap_l) ; load a[j] in double format - lfdu $A1,8($ap_h) - lfdu $N0,8($np_l) ; load n[j] in double format - lfdu $N1,8($np_h) - lfdu $A2,8($ap_l) ; load a[j+1] in double format - lfdu $A3,8($ap_h) - lfdu $N2,8($np_l) ; load n[j+1] in double format - lfdu $N3,8($np_h) - - fmadd $T0a,$A0,$ba,$dota - fmadd $T0b,$A0,$bb,$dotb fmul $T1a,$A1,$ba fmul $T1b,$A1,$bb fmul $T2a,$A2,$ba fmul $T2b,$A2,$bb fmul $T3a,$A3,$ba fmul $T3b,$A3,$bb + fmul $T0a,$A0,$ba + fmul $T0b,$A0,$bb fmadd $T1a,$A0,$bc,$T1a fmadd $T1b,$A0,$bd,$T1b @@ -639,14 +636,14 @@ Louter: fmul $dota,$A3,$bc fmul $dotb,$A3,$bd - fmadd $T0a,$N0,$na,$T0a - fmadd $T0b,$N0,$nb,$T0b fmadd $T1a,$N1,$na,$T1a fmadd $T1b,$N1,$nb,$T1b fmadd $T2a,$N2,$na,$T2a fmadd $T2b,$N2,$nb,$T2b fmadd $T3a,$N3,$na,$T3a fmadd $T3b,$N3,$nb,$T3b + fmadd $T0a,$N0,$na,$T0a + fmadd $T0b,$N0,$nb,$T0b fmadd $T1a,$N0,$nc,$T1a fmadd $T1b,$N0,$nd,$T1b @@ -674,115 +671,109 @@ Louter: stfd $T2b,`$FRAME+40`($sp) stfd $T3a,`$FRAME+48`($sp) stfd $T3b,`$FRAME+56`($sp) -.align 4 + +.align 5 Linner: - ld $t0,`$FRAME+0`($sp) - ld $t1,`$FRAME+8`($sp) - ld $t2,`$FRAME+16`($sp) - ld $t3,`$FRAME+24`($sp) - ld $t4,`$FRAME+32`($sp) - ld $t5,`$FRAME+40`($sp) - ld $t6,`$FRAME+48`($sp) - ld $t7,`$FRAME+56`($sp) + lfd $A0,8($nap_d) ; load a[j] in double format + lfd $A1,16($nap_d) + lfd $N0,24($nap_d) ; load n[j] in double format + lfd $N1,32($nap_d) + lfd $A2,40($nap_d) ; load a[j+1] in double format + lfd $A3,48($nap_d) + lfd $N2,56($nap_d) ; load n[j+1] in double format + lfdu $N3,64($nap_d) + + ld $t0,`$FRAME+0`($sp) + ld $t1,`$FRAME+8`($sp) + ld $t2,`$FRAME+16`($sp) + ld $t3,`$FRAME+24`($sp) - add $t0,$t0,$carry ; can not overflow - srdi $carry,$t0,16 - add $t1,$t1,$carry - srdi $carry,$t1,16 - add $t2,$t2,$carry - srdi $carry,$t2,16 - add $t3,$t3,$carry - srdi $carry,$t3,16 - add $t4,$t4,$carry - srdi $carry,$t4,16 - add $t5,$t5,$carry - srdi $carry,$t5,16 - add $t6,$t6,$carry - srdi $carry,$t6,16 - add $t7,$t7,$carry - - insrdi $t0,$t1,16,32 - insrdi $t0,$t2,16,16 - insrdi $t0,$t3,16,0 ; 0..63 bits - insrdi $t4,$t5,16,32 - insrdi $t4,$t6,16,16 - insrdi $t4,$t7,16,0 ; 64..127 bits - srdi $carry,$t7,16 ; upper 33 bits - - ld $t1,8($tp) ; tp[j] - ldu $t2,16($tp) ; tp[j+1] - - addc $t3,$t0,$t1 - adde $t5,$t4,$t2 - addze $carry,$carry - - std $t3,-16($tp) ; tp[j-1] - std $t5,-8($tp) ; tp[j] - - lfdu $A0,8($ap_l) ; load a[j] in double format - lfdu $A1,8($ap_h) - lfdu $N0,8($np_l) ; load n[j] in double format - lfdu $N1,8($np_h) - lfdu $A2,8($ap_l) ; load a[j+1] in double format - lfdu $A3,8($ap_h) - lfdu $N2,8($np_l) ; load n[j+1] in double format - lfdu $N3,8($np_h) - - fmadd $T0a,$A0,$ba,$dota - fmadd $T0b,$A0,$bb,$dotb fmul $T1a,$A1,$ba fmul $T1b,$A1,$bb + ld $t4,`$FRAME+32`($sp) + ld $t5,`$FRAME+40`($sp) fmul $T2a,$A2,$ba fmul $T2b,$A2,$bb + add $t0,$t0,$carry ; can not overflow fmul $T3a,$A3,$ba fmul $T3b,$A3,$bb - + ld $t6,`$FRAME+48`($sp) + ld $t7,`$FRAME+56`($sp) + fmadd $T0a,$A0,$ba,$dota + fmadd $T0b,$A0,$bb,$dotb + srdi $carry,$t0,16 + add $t1,$t1,$carry fmadd $T1a,$A0,$bc,$T1a fmadd $T1b,$A0,$bd,$T1b fmadd $T2a,$A1,$bc,$T2a fmadd $T2b,$A1,$bd,$T2b + srdi $carry,$t1,16 + insrdi $t0,$t1,16,32 fmadd $T3a,$A2,$bc,$T3a fmadd $T3b,$A2,$bd,$T3b fmul $dota,$A3,$bc fmul $dotb,$A3,$bd - - fmadd $T0a,$N0,$na,$T0a - fmadd $T0b,$N0,$nb,$T0b + add $t2,$t2,$carry + ldu $t1,8($tp) ; tp[j] + srdi $carry,$t2,16 + insrdi $t0,$t2,16,16 fmadd $T1a,$N1,$na,$T1a fmadd $T1b,$N1,$nb,$T1b fmadd $T2a,$N2,$na,$T2a fmadd $T2b,$N2,$nb,$T2b + add $t3,$t3,$carry + ldu $t2,8($tp) ; tp[j+1] fmadd $T3a,$N3,$na,$T3a fmadd $T3b,$N3,$nb,$T3b - + fmadd $T0a,$N0,$na,$T0a + fmadd $T0b,$N0,$nb,$T0b + srdi $carry,$t3,16 + insrdi $t0,$t3,16,0 ; 0..63 bits + add $t4,$t4,$carry fmadd $T1a,$N0,$nc,$T1a fmadd $T1b,$N0,$nd,$T1b fmadd $T2a,$N1,$nc,$T2a fmadd $T2b,$N1,$nd,$T2b + srdi $carry,$t4,16 fmadd $T3a,$N2,$nc,$T3a fmadd $T3b,$N2,$nd,$T3b fmadd $dota,$N3,$nc,$dota fmadd $dotb,$N3,$nd,$dotb - + add $t5,$t5,$carry + srdi $carry,$t5,16 + insrdi $t4,$t5,16,32 fctid $T0a,$T0a fctid $T0b,$T0b fctid $T1a,$T1a fctid $T1b,$T1b + add $t6,$t6,$carry fctid $T2a,$T2a fctid $T2b,$T2b + srdi $carry,$t6,16 + insrdi $t4,$t6,16,16 fctid $T3a,$T3a fctid $T3b,$T3b stfd $T0a,`$FRAME+0`($sp) stfd $T0b,`$FRAME+8`($sp) + add $t7,$t7,$carry + addc $t3,$t0,$t1 stfd $T1a,`$FRAME+16`($sp) stfd $T1b,`$FRAME+24`($sp) + insrdi $t4,$t7,16,0 ; 64..127 bits + srdi $carry,$t7,16 ; upper 33 bits stfd $T2a,`$FRAME+32`($sp) stfd $T2b,`$FRAME+40`($sp) + adde $t5,$t4,$t2 stfd $T3a,`$FRAME+48`($sp) stfd $T3b,`$FRAME+56`($sp) + addze $carry,$carry + std $t3,-16($tp) ; tp[j-1] + std $t5,-8($tp) ; tp[j] bdnz- Linner - + + fctid $dota,$dota + fctid $dotb,$dotb ld $t0,`$FRAME+0`($sp) ld $t1,`$FRAME+8`($sp) ld $t2,`$FRAME+16`($sp) @@ -791,33 +782,35 @@ Linner: ld $t5,`$FRAME+40`($sp) ld $t6,`$FRAME+48`($sp) ld $t7,`$FRAME+56`($sp) + stfd $dota,`$FRAME+64`($sp) + stfd $dotb,`$FRAME+72`($sp) add $t0,$t0,$carry ; can not overflow srdi $carry,$t0,16 add $t1,$t1,$carry srdi $carry,$t1,16 + insrdi $t0,$t1,16,32 add $t2,$t2,$carry + ld $t1,8($tp) ; tp[j] srdi $carry,$t2,16 + insrdi $t0,$t2,16,16 add $t3,$t3,$carry + ldu $t2,16($tp) ; tp[j+1] srdi $carry,$t3,16 + insrdi $t0,$t3,16,0 ; 0..63 bits add $t4,$t4,$carry srdi $carry,$t4,16 add $t5,$t5,$carry srdi $carry,$t5,16 + insrdi $t4,$t5,16,32 add $t6,$t6,$carry srdi $carry,$t6,16 - add $t7,$t7,$carry - - insrdi $t0,$t1,16,32 - insrdi $t0,$t2,16,16 - insrdi $t0,$t3,16,0 ; 0..63 bits - insrdi $t4,$t5,16,32 insrdi $t4,$t6,16,16 + add $t7,$t7,$carry insrdi $t4,$t7,16,0 ; 64..127 bits srdi $carry,$t7,16 ; upper 33 bits - - ld $t1,8($tp) ; tp[j] - ldu $t2,16($tp) ; tp[j+1] + ld $t6,`$FRAME+64`($sp) + ld $t7,`$FRAME+72`($sp) addc $t3,$t0,$t1 adde $t5,$t4,$t2 @@ -825,36 +818,28 @@ Linner: std $t3,-16($tp) ; tp[j-1] std $t5,-8($tp) ; tp[j] - - fctid $dota,$dota - fctid $dotb,$dotb - stfd $dota,`$FRAME+0`($sp) - stfd $dotb,`$FRAME+8`($sp) - ld $t0,`$FRAME+0`($sp) - ld $t1,`$FRAME+8`($sp) + add $carry,$carry,$ovf ; comsume upmost overflow - add $t0,$t0,$carry ; can not overflow - srdi $carry,$t0,16 - add $t1,$t1,$carry - insrdi $t0,$t1,48,0 - srdi $ovf,$t1,48 - std $t0,0($tp) ; tp[num-1] - - subf $ap_l,$num,$ap_l ; rewind pointers - subf $ap_h,$num,$ap_h - subf $np_l,$num,$np_l - subf $np_h,$num,$np_h + add $t6,$t6,$carry ; can not overflow + srdi $carry,$t6,16 + add $t7,$t7,$carry + insrdi $t6,$t7,48,0 + srdi $ovf,$t7,48 + std $t6,0($tp) ; tp[num-1] + + slwi $t7,$num,2 addi $i,$i,8 + subf $nap_d,$t7,$nap_d ; rewind pointer cmpw $i,$num blt- Louter subf $np,$num,$np ; rewind np + addi $j,$j,1 ; restore counter subfc $i,$i,$i ; j=0 and "clear" XER[CA] addi $tp,$sp,`$FRAME+$TRANSFER+8` addi $t4,$sp,`$FRAME+$TRANSFER+16` addi $t5,$np,8 addi $t6,$rp,8 - addi $j,$j,1 mtctr $j .align 4 @@ -881,14 +866,14 @@ Lsub: ldx $t0,$tp,$i Lcopy: ; copy or in-place refresh ldx $t0,$ap,$i ldx $t1,$t7,$i - stdu $i,8($ap_l) ; zap {an}p_{lh} - stdu $i,8($ap_h) - stdu $i,8($np_l) - stdu $i,8($np_h) - stdu $i,8($ap_l) - stdu $i,8($ap_h) - stdu $i,8($np_l) - stdu $i,8($np_h) + std $i,8($nap_d) ; zap nap_d + std $i,16($nap_d) + std $i,24($nap_d) + std $i,32($nap_d) + std $i,40($nap_d) + std $i,48($nap_d) + std $i,56($nap_d) + stdu $i,64($nap_d) stdx $t0,$rp,$i stdx $t1,$t6,$i stdx $i,$tp,$i ; zap tp at once @@ -906,22 +891,18 @@ Lcopy: ; copy or in-place refresh $POP r21,`9*$SIZE_T`($sp) $POP r22,`10*$SIZE_T`($sp) $POP r23,`11*$SIZE_T`($sp) - $POP r24,`12*$SIZE_T`($sp) - $POP r25,`13*$SIZE_T`($sp) - $POP r26,`14*$SIZE_T`($sp) - $POP r27,`15*$SIZE_T`($sp) - lfd f14,`16*$SIZE_T+0`($sp) - lfd f15,`16*$SIZE_T+8`($sp) - lfd f16,`16*$SIZE_T+16`($sp) - lfd f17,`16*$SIZE_T+24`($sp) - lfd f18,`16*$SIZE_T+32`($sp) - lfd f19,`16*$SIZE_T+40`($sp) - lfd f20,`16*$SIZE_T+48`($sp) - lfd f21,`16*$SIZE_T+56`($sp) - lfd f22,`16*$SIZE_T+64`($sp) - lfd f23,`16*$SIZE_T+72`($sp) - lfd f24,`16*$SIZE_T+80`($sp) - lfd f25,`16*$SIZE_T+88`($sp) + lfd f14,`12*$SIZE_T+0`($sp) + lfd f15,`12*$SIZE_T+8`($sp) + lfd f16,`12*$SIZE_T+16`($sp) + lfd f17,`12*$SIZE_T+24`($sp) + lfd f18,`12*$SIZE_T+32`($sp) + lfd f19,`12*$SIZE_T+40`($sp) + lfd f20,`12*$SIZE_T+48`($sp) + lfd f21,`12*$SIZE_T+56`($sp) + lfd f22,`12*$SIZE_T+64`($sp) + lfd f23,`12*$SIZE_T+72`($sp) + lfd f24,`12*$SIZE_T+80`($sp) + lfd f25,`12*$SIZE_T+88`($sp) $POP $sp,0($sp) li r3,1 ; signal "handled" blr |