| #include "../bn_lcl.h" |
| #if !(defined(__GNUC__) && __GNUC__>=2) |
| # include "../bn_asm.c" /* kind of dirty hack for Sun Studio */ |
| #else |
| /* |
| * x86_64 BIGNUM accelerator version 0.1, December 2002. |
| * |
| * Implemented by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL |
| * project. |
| * |
| * Rights for redistribution and usage in source and binary forms are |
| * granted according to the OpenSSL license. Warranty of any kind is |
| * disclaimed. |
| * |
| * Q. Version 0.1? It doesn't sound like Andy, he used to assign real |
| * versions, like 1.0... |
| * A. Well, that's because this code is basically a quick-n-dirty |
| * proof-of-concept hack. As you can see it's implemented with |
| * inline assembler, which means that you're bound to GCC and that |
| * there might be enough room for further improvement. |
| * |
| * Q. Why inline assembler? |
| * A. x86_64 features own ABI which I'm not familiar with. This is |
| * why I decided to let the compiler take care of subroutine |
| * prologue/epilogue as well as register allocation. For reference. |
| * Win64 implements different ABI for AMD64, different from Linux. |
| * |
| * Q. How much faster does it get? |
| * A. 'apps/openssl speed rsa dsa' output with no-asm: |
| * |
| * sign verify sign/s verify/s |
| * rsa 512 bits 0.0006s 0.0001s 1683.8 18456.2 |
| * rsa 1024 bits 0.0028s 0.0002s 356.0 6407.0 |
| * rsa 2048 bits 0.0172s 0.0005s 58.0 1957.8 |
| * rsa 4096 bits 0.1155s 0.0018s 8.7 555.6 |
| * sign verify sign/s verify/s |
| * dsa 512 bits 0.0005s 0.0006s 2100.8 1768.3 |
| * dsa 1024 bits 0.0014s 0.0018s 692.3 559.2 |
| * dsa 2048 bits 0.0049s 0.0061s 204.7 165.0 |
| * |
| * 'apps/openssl speed rsa dsa' output with this module: |
| * |
| * sign verify sign/s verify/s |
| * rsa 512 bits 0.0004s 0.0000s 2767.1 33297.9 |
| * rsa 1024 bits 0.0012s 0.0001s 867.4 14674.7 |
| * rsa 2048 bits 0.0061s 0.0002s 164.0 5270.0 |
| * rsa 4096 bits 0.0384s 0.0006s 26.1 1650.8 |
| * sign verify sign/s verify/s |
| * dsa 512 bits 0.0002s 0.0003s 4442.2 3786.3 |
| * dsa 1024 bits 0.0005s 0.0007s 1835.1 1497.4 |
| * dsa 2048 bits 0.0016s 0.0020s 620.4 504.6 |
| * |
| * For the reference. IA-32 assembler implementation performs |
| * very much like 64-bit code compiled with no-asm on the same |
| * machine. |
| */ |
| |
| #ifdef _WIN64 |
| #define BN_ULONG unsigned long long |
| #else |
| #define BN_ULONG unsigned long |
| #endif |
| |
| #undef mul |
| #undef mul_add |
| #undef sqr |
| |
| /* |
| * "m"(a), "+m"(r) is the way to favor DirectPath ยต-code; |
| * "g"(0) let the compiler to decide where does it |
| * want to keep the value of zero; |
| */ |
| #define mul_add(r,a,word,carry) do { \ |
| register BN_ULONG high,low; \ |
| asm ("mulq %3" \ |
| : "=a"(low),"=d"(high) \ |
| : "a"(word),"m"(a) \ |
| : "cc"); \ |
| asm ("addq %2,%0; adcq %3,%1" \ |
| : "+r"(carry),"+d"(high)\ |
| : "a"(low),"g"(0) \ |
| : "cc"); \ |
| asm ("addq %2,%0; adcq %3,%1" \ |
| : "+m"(r),"+d"(high) \ |
| : "r"(carry),"g"(0) \ |
| : "cc"); \ |
| carry=high; \ |
| } while (0) |
| |
| #define mul(r,a,word,carry) do { \ |
| register BN_ULONG high,low; \ |
| asm ("mulq %3" \ |
| : "=a"(low),"=d"(high) \ |
| : "a"(word),"g"(a) \ |
| : "cc"); \ |
| asm ("addq %2,%0; adcq %3,%1" \ |
| : "+r"(carry),"+d"(high)\ |
| : "a"(low),"g"(0) \ |
| : "cc"); \ |
| (r)=carry, carry=high; \ |
| } while (0) |
| |
| #define sqr(r0,r1,a) \ |
| asm ("mulq %2" \ |
| : "=a"(r0),"=d"(r1) \ |
| : "a"(a) \ |
| : "cc"); |
| |
| BN_ULONG bn_mul_add_words(BN_ULONG *rp, const BN_ULONG *ap, int num, BN_ULONG w) |
| { |
| BN_ULONG c1=0; |
| |
| if (num <= 0) return(c1); |
| |
| while (num&~3) |
| { |
| mul_add(rp[0],ap[0],w,c1); |
| mul_add(rp[1],ap[1],w,c1); |
| mul_add(rp[2],ap[2],w,c1); |
| mul_add(rp[3],ap[3],w,c1); |
| ap+=4; rp+=4; num-=4; |
| } |
| if (num) |
| { |
| mul_add(rp[0],ap[0],w,c1); if (--num==0) return c1; |
| mul_add(rp[1],ap[1],w,c1); if (--num==0) return c1; |
| mul_add(rp[2],ap[2],w,c1); return c1; |
| } |
| |
| return(c1); |
| } |
| |
| BN_ULONG bn_mul_words(BN_ULONG *rp, const BN_ULONG *ap, int num, BN_ULONG w) |
| { |
| BN_ULONG c1=0; |
| |
| if (num <= 0) return(c1); |
| |
| while (num&~3) |
| { |
| mul(rp[0],ap[0],w,c1); |
| mul(rp[1],ap[1],w,c1); |
| mul(rp[2],ap[2],w,c1); |
| mul(rp[3],ap[3],w,c1); |
| ap+=4; rp+=4; num-=4; |
| } |
| if (num) |
| { |
| mul(rp[0],ap[0],w,c1); if (--num == 0) return c1; |
| mul(rp[1],ap[1],w,c1); if (--num == 0) return c1; |
| mul(rp[2],ap[2],w,c1); |
| } |
| return(c1); |
| } |
| |
| void bn_sqr_words(BN_ULONG *r, const BN_ULONG *a, int n) |
| { |
| if (n <= 0) return; |
| |
| while (n&~3) |
| { |
| sqr(r[0],r[1],a[0]); |
| sqr(r[2],r[3],a[1]); |
| sqr(r[4],r[5],a[2]); |
| sqr(r[6],r[7],a[3]); |
| a+=4; r+=8; n-=4; |
| } |
| if (n) |
| { |
| sqr(r[0],r[1],a[0]); if (--n == 0) return; |
| sqr(r[2],r[3],a[1]); if (--n == 0) return; |
| sqr(r[4],r[5],a[2]); |
| } |
| } |
| |
| BN_ULONG bn_div_words(BN_ULONG h, BN_ULONG l, BN_ULONG d) |
| { BN_ULONG ret,waste; |
| |
| asm ("divq %4" |
| : "=a"(ret),"=d"(waste) |
| : "a"(l),"d"(h),"g"(d) |
| : "cc"); |
| |
| return ret; |
| } |
| |
| BN_ULONG bn_add_words (BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,int n) |
| { BN_ULONG ret=0,i=0; |
| |
| if (n <= 0) return 0; |
| |
| asm ( |
| " subq %2,%2 \n" |
| ".p2align 4 \n" |
| "1: movq (%4,%2,8),%0 \n" |
| " adcq (%5,%2,8),%0 \n" |
| " movq %0,(%3,%2,8) \n" |
| " leaq 1(%2),%2 \n" |
| " loop 1b \n" |
| " sbbq %0,%0 \n" |
| : "=&a"(ret),"+c"(n),"=&r"(i) |
| : "r"(rp),"r"(ap),"r"(bp) |
| : "cc" |
| ); |
| |
| return ret&1; |
| } |
| |
| #ifndef SIMICS |
| BN_ULONG bn_sub_words (BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,int n) |
| { BN_ULONG ret=0,i=0; |
| |
| if (n <= 0) return 0; |
| |
| asm ( |
| " subq %2,%2 \n" |
| ".p2align 4 \n" |
| "1: movq (%4,%2,8),%0 \n" |
| " sbbq (%5,%2,8),%0 \n" |
| " movq %0,(%3,%2,8) \n" |
| " leaq 1(%2),%2 \n" |
| " loop 1b \n" |
| " sbbq %0,%0 \n" |
| : "=&a"(ret),"+c"(n),"=&r"(i) |
| : "r"(rp),"r"(ap),"r"(bp) |
| : "cc" |
| ); |
| |
| return ret&1; |
| } |
| #else |
| /* Simics 1.4<7 has buggy sbbq:-( */ |
| #define BN_MASK2 0xffffffffffffffffL |
| BN_ULONG bn_sub_words(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int n) |
| { |
| BN_ULONG t1,t2; |
| int c=0; |
| |
| if (n <= 0) return((BN_ULONG)0); |
| |
| for (;;) |
| { |
| t1=a[0]; t2=b[0]; |
| r[0]=(t1-t2-c)&BN_MASK2; |
| if (t1 != t2) c=(t1 < t2); |
| if (--n <= 0) break; |
| |
| t1=a[1]; t2=b[1]; |
| r[1]=(t1-t2-c)&BN_MASK2; |
| if (t1 != t2) c=(t1 < t2); |
| if (--n <= 0) break; |
| |
| t1=a[2]; t2=b[2]; |
| r[2]=(t1-t2-c)&BN_MASK2; |
| if (t1 != t2) c=(t1 < t2); |
| if (--n <= 0) break; |
| |
| t1=a[3]; t2=b[3]; |
| r[3]=(t1-t2-c)&BN_MASK2; |
| if (t1 != t2) c=(t1 < t2); |
| if (--n <= 0) break; |
| |
| a+=4; |
| b+=4; |
| r+=4; |
| } |
| return(c); |
| } |
| #endif |
| |
| /* mul_add_c(a,b,c0,c1,c2) -- c+=a*b for three word number c=(c2,c1,c0) */ |
| /* mul_add_c2(a,b,c0,c1,c2) -- c+=2*a*b for three word number c=(c2,c1,c0) */ |
| /* sqr_add_c(a,i,c0,c1,c2) -- c+=a[i]^2 for three word number c=(c2,c1,c0) */ |
| /* sqr_add_c2(a,i,c0,c1,c2) -- c+=2*a[i]*a[j] for three word number c=(c2,c1,c0) */ |
| |
| #if 0 |
| /* original macros are kept for reference purposes */ |
| #define mul_add_c(a,b,c0,c1,c2) { \ |
| BN_ULONG ta=(a),tb=(b); \ |
| t1 = ta * tb; \ |
| t2 = BN_UMULT_HIGH(ta,tb); \ |
| c0 += t1; t2 += (c0<t1)?1:0; \ |
| c1 += t2; c2 += (c1<t2)?1:0; \ |
| } |
| |
| #define mul_add_c2(a,b,c0,c1,c2) { \ |
| BN_ULONG ta=(a),tb=(b),t0; \ |
| t1 = BN_UMULT_HIGH(ta,tb); \ |
| t0 = ta * tb; \ |
| t2 = t1+t1; c2 += (t2<t1)?1:0; \ |
| t1 = t0+t0; t2 += (t1<t0)?1:0; \ |
| c0 += t1; t2 += (c0<t1)?1:0; \ |
| c1 += t2; c2 += (c1<t2)?1:0; \ |
| } |
| #else |
| #define mul_add_c(a,b,c0,c1,c2) do { \ |
| asm ("mulq %3" \ |
| : "=a"(t1),"=d"(t2) \ |
| : "a"(a),"m"(b) \ |
| : "cc"); \ |
| asm ("addq %2,%0; adcq %3,%1" \ |
| : "+r"(c0),"+d"(t2) \ |
| : "a"(t1),"g"(0) \ |
| : "cc"); \ |
| asm ("addq %2,%0; adcq %3,%1" \ |
| : "+r"(c1),"+r"(c2) \ |
| : "d"(t2),"g"(0) \ |
| : "cc"); \ |
| } while (0) |
| |
| #define sqr_add_c(a,i,c0,c1,c2) do { \ |
| asm ("mulq %2" \ |
| : "=a"(t1),"=d"(t2) \ |
| : "a"(a[i]) \ |
| : "cc"); \ |
| asm ("addq %2,%0; adcq %3,%1" \ |
| : "+r"(c0),"+d"(t2) \ |
| : "a"(t1),"g"(0) \ |
| : "cc"); \ |
| asm ("addq %2,%0; adcq %3,%1" \ |
| : "+r"(c1),"+r"(c2) \ |
| : "d"(t2),"g"(0) \ |
| : "cc"); \ |
| } while (0) |
| |
| #define mul_add_c2(a,b,c0,c1,c2) do { \ |
| asm ("mulq %3" \ |
| : "=a"(t1),"=d"(t2) \ |
| : "a"(a),"m"(b) \ |
| : "cc"); \ |
| asm ("addq %0,%0; adcq %2,%1" \ |
| : "+d"(t2),"+r"(c2) \ |
| : "g"(0) \ |
| : "cc"); \ |
| asm ("addq %0,%0; adcq %2,%1" \ |
| : "+a"(t1),"+d"(t2) \ |
| : "g"(0) \ |
| : "cc"); \ |
| asm ("addq %2,%0; adcq %3,%1" \ |
| : "+r"(c0),"+d"(t2) \ |
| : "a"(t1),"g"(0) \ |
| : "cc"); \ |
| asm ("addq %2,%0; adcq %3,%1" \ |
| : "+r"(c1),"+r"(c2) \ |
| : "d"(t2),"g"(0) \ |
| : "cc"); \ |
| } while (0) |
| #endif |
| |
| #define sqr_add_c2(a,i,j,c0,c1,c2) \ |
| mul_add_c2((a)[i],(a)[j],c0,c1,c2) |
| |
| void bn_mul_comba8(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b) |
| { |
| BN_ULONG t1,t2; |
| BN_ULONG c1,c2,c3; |
| |
| c1=0; |
| c2=0; |
| c3=0; |
| mul_add_c(a[0],b[0],c1,c2,c3); |
| r[0]=c1; |
| c1=0; |
| mul_add_c(a[0],b[1],c2,c3,c1); |
| mul_add_c(a[1],b[0],c2,c3,c1); |
| r[1]=c2; |
| c2=0; |
| mul_add_c(a[2],b[0],c3,c1,c2); |
| mul_add_c(a[1],b[1],c3,c1,c2); |
| mul_add_c(a[0],b[2],c3,c1,c2); |
| r[2]=c3; |
| c3=0; |
| mul_add_c(a[0],b[3],c1,c2,c3); |
| mul_add_c(a[1],b[2],c1,c2,c3); |
| mul_add_c(a[2],b[1],c1,c2,c3); |
| mul_add_c(a[3],b[0],c1,c2,c3); |
| r[3]=c1; |
| c1=0; |
| mul_add_c(a[4],b[0],c2,c3,c1); |
| mul_add_c(a[3],b[1],c2,c3,c1); |
| mul_add_c(a[2],b[2],c2,c3,c1); |
| mul_add_c(a[1],b[3],c2,c3,c1); |
| mul_add_c(a[0],b[4],c2,c3,c1); |
| r[4]=c2; |
| c2=0; |
| mul_add_c(a[0],b[5],c3,c1,c2); |
| mul_add_c(a[1],b[4],c3,c1,c2); |
| mul_add_c(a[2],b[3],c3,c1,c2); |
| mul_add_c(a[3],b[2],c3,c1,c2); |
| mul_add_c(a[4],b[1],c3,c1,c2); |
| mul_add_c(a[5],b[0],c3,c1,c2); |
| r[5]=c3; |
| c3=0; |
| mul_add_c(a[6],b[0],c1,c2,c3); |
| mul_add_c(a[5],b[1],c1,c2,c3); |
| mul_add_c(a[4],b[2],c1,c2,c3); |
| mul_add_c(a[3],b[3],c1,c2,c3); |
| mul_add_c(a[2],b[4],c1,c2,c3); |
| mul_add_c(a[1],b[5],c1,c2,c3); |
| mul_add_c(a[0],b[6],c1,c2,c3); |
| r[6]=c1; |
| c1=0; |
| mul_add_c(a[0],b[7],c2,c3,c1); |
| mul_add_c(a[1],b[6],c2,c3,c1); |
| mul_add_c(a[2],b[5],c2,c3,c1); |
| mul_add_c(a[3],b[4],c2,c3,c1); |
| mul_add_c(a[4],b[3],c2,c3,c1); |
| mul_add_c(a[5],b[2],c2,c3,c1); |
| mul_add_c(a[6],b[1],c2,c3,c1); |
| mul_add_c(a[7],b[0],c2,c3,c1); |
| r[7]=c2; |
| c2=0; |
| mul_add_c(a[7],b[1],c3,c1,c2); |
| mul_add_c(a[6],b[2],c3,c1,c2); |
| mul_add_c(a[5],b[3],c3,c1,c2); |
| mul_add_c(a[4],b[4],c3,c1,c2); |
| mul_add_c(a[3],b[5],c3,c1,c2); |
| mul_add_c(a[2],b[6],c3,c1,c2); |
| mul_add_c(a[1],b[7],c3,c1,c2); |
| r[8]=c3; |
| c3=0; |
| mul_add_c(a[2],b[7],c1,c2,c3); |
| mul_add_c(a[3],b[6],c1,c2,c3); |
| mul_add_c(a[4],b[5],c1,c2,c3); |
| mul_add_c(a[5],b[4],c1,c2,c3); |
| mul_add_c(a[6],b[3],c1,c2,c3); |
| mul_add_c(a[7],b[2],c1,c2,c3); |
| r[9]=c1; |
| c1=0; |
| mul_add_c(a[7],b[3],c2,c3,c1); |
| mul_add_c(a[6],b[4],c2,c3,c1); |
| mul_add_c(a[5],b[5],c2,c3,c1); |
| mul_add_c(a[4],b[6],c2,c3,c1); |
| mul_add_c(a[3],b[7],c2,c3,c1); |
| r[10]=c2; |
| c2=0; |
| mul_add_c(a[4],b[7],c3,c1,c2); |
| mul_add_c(a[5],b[6],c3,c1,c2); |
| mul_add_c(a[6],b[5],c3,c1,c2); |
| mul_add_c(a[7],b[4],c3,c1,c2); |
| r[11]=c3; |
| c3=0; |
| mul_add_c(a[7],b[5],c1,c2,c3); |
| mul_add_c(a[6],b[6],c1,c2,c3); |
| mul_add_c(a[5],b[7],c1,c2,c3); |
| r[12]=c1; |
| c1=0; |
| mul_add_c(a[6],b[7],c2,c3,c1); |
| mul_add_c(a[7],b[6],c2,c3,c1); |
| r[13]=c2; |
| c2=0; |
| mul_add_c(a[7],b[7],c3,c1,c2); |
| r[14]=c3; |
| r[15]=c1; |
| } |
| |
| void bn_mul_comba4(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b) |
| { |
| BN_ULONG t1,t2; |
| BN_ULONG c1,c2,c3; |
| |
| c1=0; |
| c2=0; |
| c3=0; |
| mul_add_c(a[0],b[0],c1,c2,c3); |
| r[0]=c1; |
| c1=0; |
| mul_add_c(a[0],b[1],c2,c3,c1); |
| mul_add_c(a[1],b[0],c2,c3,c1); |
| r[1]=c2; |
| c2=0; |
| mul_add_c(a[2],b[0],c3,c1,c2); |
| mul_add_c(a[1],b[1],c3,c1,c2); |
| mul_add_c(a[0],b[2],c3,c1,c2); |
| r[2]=c3; |
| c3=0; |
| mul_add_c(a[0],b[3],c1,c2,c3); |
| mul_add_c(a[1],b[2],c1,c2,c3); |
| mul_add_c(a[2],b[1],c1,c2,c3); |
| mul_add_c(a[3],b[0],c1,c2,c3); |
| r[3]=c1; |
| c1=0; |
| mul_add_c(a[3],b[1],c2,c3,c1); |
| mul_add_c(a[2],b[2],c2,c3,c1); |
| mul_add_c(a[1],b[3],c2,c3,c1); |
| r[4]=c2; |
| c2=0; |
| mul_add_c(a[2],b[3],c3,c1,c2); |
| mul_add_c(a[3],b[2],c3,c1,c2); |
| r[5]=c3; |
| c3=0; |
| mul_add_c(a[3],b[3],c1,c2,c3); |
| r[6]=c1; |
| r[7]=c2; |
| } |
| |
| void bn_sqr_comba8(BN_ULONG *r, const BN_ULONG *a) |
| { |
| BN_ULONG t1,t2; |
| BN_ULONG c1,c2,c3; |
| |
| c1=0; |
| c2=0; |
| c3=0; |
| sqr_add_c(a,0,c1,c2,c3); |
| r[0]=c1; |
| c1=0; |
| sqr_add_c2(a,1,0,c2,c3,c1); |
| r[1]=c2; |
| c2=0; |
| sqr_add_c(a,1,c3,c1,c2); |
| sqr_add_c2(a,2,0,c3,c1,c2); |
| r[2]=c3; |
| c3=0; |
| sqr_add_c2(a,3,0,c1,c2,c3); |
| sqr_add_c2(a,2,1,c1,c2,c3); |
| r[3]=c1; |
| c1=0; |
| sqr_add_c(a,2,c2,c3,c1); |
| sqr_add_c2(a,3,1,c2,c3,c1); |
| sqr_add_c2(a,4,0,c2,c3,c1); |
| r[4]=c2; |
| c2=0; |
| sqr_add_c2(a,5,0,c3,c1,c2); |
| sqr_add_c2(a,4,1,c3,c1,c2); |
| sqr_add_c2(a,3,2,c3,c1,c2); |
| r[5]=c3; |
| c3=0; |
| sqr_add_c(a,3,c1,c2,c3); |
| sqr_add_c2(a,4,2,c1,c2,c3); |
| sqr_add_c2(a,5,1,c1,c2,c3); |
| sqr_add_c2(a,6,0,c1,c2,c3); |
| r[6]=c1; |
| c1=0; |
| sqr_add_c2(a,7,0,c2,c3,c1); |
| sqr_add_c2(a,6,1,c2,c3,c1); |
| sqr_add_c2(a,5,2,c2,c3,c1); |
| sqr_add_c2(a,4,3,c2,c3,c1); |
| r[7]=c2; |
| c2=0; |
| sqr_add_c(a,4,c3,c1,c2); |
| sqr_add_c2(a,5,3,c3,c1,c2); |
| sqr_add_c2(a,6,2,c3,c1,c2); |
| sqr_add_c2(a,7,1,c3,c1,c2); |
| r[8]=c3; |
| c3=0; |
| sqr_add_c2(a,7,2,c1,c2,c3); |
| sqr_add_c2(a,6,3,c1,c2,c3); |
| sqr_add_c2(a,5,4,c1,c2,c3); |
| r[9]=c1; |
| c1=0; |
| sqr_add_c(a,5,c2,c3,c1); |
| sqr_add_c2(a,6,4,c2,c3,c1); |
| sqr_add_c2(a,7,3,c2,c3,c1); |
| r[10]=c2; |
| c2=0; |
| sqr_add_c2(a,7,4,c3,c1,c2); |
| sqr_add_c2(a,6,5,c3,c1,c2); |
| r[11]=c3; |
| c3=0; |
| sqr_add_c(a,6,c1,c2,c3); |
| sqr_add_c2(a,7,5,c1,c2,c3); |
| r[12]=c1; |
| c1=0; |
| sqr_add_c2(a,7,6,c2,c3,c1); |
| r[13]=c2; |
| c2=0; |
| sqr_add_c(a,7,c3,c1,c2); |
| r[14]=c3; |
| r[15]=c1; |
| } |
| |
| void bn_sqr_comba4(BN_ULONG *r, const BN_ULONG *a) |
| { |
| BN_ULONG t1,t2; |
| BN_ULONG c1,c2,c3; |
| |
| c1=0; |
| c2=0; |
| c3=0; |
| sqr_add_c(a,0,c1,c2,c3); |
| r[0]=c1; |
| c1=0; |
| sqr_add_c2(a,1,0,c2,c3,c1); |
| r[1]=c2; |
| c2=0; |
| sqr_add_c(a,1,c3,c1,c2); |
| sqr_add_c2(a,2,0,c3,c1,c2); |
| r[2]=c3; |
| c3=0; |
| sqr_add_c2(a,3,0,c1,c2,c3); |
| sqr_add_c2(a,2,1,c1,c2,c3); |
| r[3]=c1; |
| c1=0; |
| sqr_add_c(a,2,c2,c3,c1); |
| sqr_add_c2(a,3,1,c2,c3,c1); |
| r[4]=c2; |
| c2=0; |
| sqr_add_c2(a,3,2,c3,c1,c2); |
| r[5]=c3; |
| c3=0; |
| sqr_add_c(a,3,c1,c2,c3); |
| r[6]=c1; |
| r[7]=c2; |
| } |
| #endif |
