wolf SSL
wolfSSL SSL/TLS library, support up to TLS1.3
Dependents: CyaSSL-Twitter-OAuth4Tw Example-client-tls-cert TwitterReader TweetTest ... more
Diff: wolfcrypt/src/asm.c
- Revision:
- 11:cee25a834751
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wolfcrypt/src/asm.c Tue May 30 01:44:10 2017 +0000
@@ -0,0 +1,1616 @@
+/* asm.c
+ *
+ * Copyright (C) 2006-2016 wolfSSL Inc.
+ *
+ * This file is part of wolfSSL.
+ *
+ * wolfSSL is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * wolfSSL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
+ */
+
+
+#ifdef HAVE_CONFIG_H
+ #include <config.h>
+#endif
+
+#include <wolfssl/wolfcrypt/settings.h>
+
+/*
+ * Based on public domain TomsFastMath 0.10 by Tom St Denis, tomstdenis@iahu.ca,
+ * http://math.libtomcrypt.com
+ */
+
+
+/******************************************************************/
+/* fp_montgomery_reduce.c asm or generic */
+
+
+/* Each platform needs to query info type 1 from cpuid to see if aesni is
+ * supported. Also, let's setup a macro for proper linkage w/o ABI conflicts
+ */
+
+#if defined(HAVE_INTEL_MULX)
+#ifndef _MSC_VER
+ #define cpuid(reg, leaf, sub)\
+ __asm__ __volatile__ ("cpuid":\
+ "=a" (reg[0]), "=b" (reg[1]), "=c" (reg[2]), "=d" (reg[3]) :\
+ "a" (leaf), "c"(sub));
+
+ #define XASM_LINK(f) asm(f)
+#else
+
+ #include <intrin.h>
+ #define cpuid(a,b) __cpuid((int*)a,b)
+
+ #define XASM_LINK(f)
+
+#endif /* _MSC_VER */
+
+#define EAX 0
+#define EBX 1
+#define ECX 2
+#define EDX 3
+
+#define CPUID_AVX1 0x1
+#define CPUID_AVX2 0x2
+#define CPUID_RDRAND 0x4
+#define CPUID_RDSEED 0x8
+#define CPUID_BMI2 0x10 /* MULX, RORX */
+#define CPUID_ADX 0x20 /* ADCX, ADOX */
+
+#define IS_INTEL_AVX1 (cpuid_flags&CPUID_AVX1)
+#define IS_INTEL_AVX2 (cpuid_flags&CPUID_AVX2)
+#define IS_INTEL_BMI2 (cpuid_flags&CPUID_BMI2)
+#define IS_INTEL_ADX (cpuid_flags&CPUID_ADX)
+#define IS_INTEL_RDRAND (cpuid_flags&CPUID_RDRAND)
+#define IS_INTEL_RDSEED (cpuid_flags&CPUID_RDSEED)
+#define SET_FLAGS
+
+static word32 cpuid_check = 0 ;
+static word32 cpuid_flags = 0 ;
+
+static word32 cpuid_flag(word32 leaf, word32 sub, word32 num, word32 bit) {
+ int got_intel_cpu=0;
+ unsigned int reg[5];
+
+ reg[4] = '\0' ;
+ cpuid(reg, 0, 0);
+ if(memcmp((char *)&(reg[EBX]), "Genu", 4) == 0 &&
+ memcmp((char *)&(reg[EDX]), "ineI", 4) == 0 &&
+ memcmp((char *)&(reg[ECX]), "ntel", 4) == 0) {
+ got_intel_cpu = 1;
+ }
+ if (got_intel_cpu) {
+ cpuid(reg, leaf, sub);
+ return((reg[num]>>bit)&0x1) ;
+ }
+ return 0 ;
+}
+
+INLINE static int set_cpuid_flags(void) {
+ if(cpuid_check == 0) {
+ if(cpuid_flag(7, 0, EBX, 8)){ cpuid_flags |= CPUID_BMI2 ; }
+ if(cpuid_flag(7, 0, EBX,19)){ cpuid_flags |= CPUID_ADX ; }
+ cpuid_check = 1 ;
+ return 0 ;
+ }
+ return 1 ;
+}
+
+#define RETURN return
+#define IF_HAVE_INTEL_MULX(func, ret) \
+ if(cpuid_check==0)set_cpuid_flags() ; \
+ if(IS_INTEL_BMI2 && IS_INTEL_ADX){ func; ret ; }
+
+#else
+ #define IF_HAVE_INTEL_MULX(func, ret)
+#endif
+
+#if defined(TFM_X86) && !defined(TFM_SSE2)
+/* x86-32 code */
+
+#define MONT_START
+#define MONT_FINI
+#define LOOP_END
+#define LOOP_START \
+ mu = c[x] * mp
+
+#define INNERMUL \
+__asm__( \
+ "movl %5,%%eax \n\t" \
+ "mull %4 \n\t" \
+ "addl %1,%%eax \n\t" \
+ "adcl $0,%%edx \n\t" \
+ "addl %%eax,%0 \n\t" \
+ "adcl $0,%%edx \n\t" \
+ "movl %%edx,%1 \n\t" \
+:"=g"(_c[LO]), "=r"(cy) \
+:"0"(_c[LO]), "1"(cy), "r"(mu), "r"(*tmpm++) \
+: "%eax", "%edx", "cc")
+
+#define PROPCARRY \
+__asm__( \
+ "addl %1,%0 \n\t" \
+ "setb %%al \n\t" \
+ "movzbl %%al,%1 \n\t" \
+:"=g"(_c[LO]), "=r"(cy) \
+:"0"(_c[LO]), "1"(cy) \
+: "%eax", "cc")
+
+/******************************************************************/
+#elif defined(TFM_X86_64)
+/* x86-64 code */
+
+#define MONT_START
+#define MONT_FINI
+#define LOOP_END
+#define LOOP_START \
+ mu = c[x] * mp;
+
+#define INNERMUL \
+__asm__( \
+ "movq %5,%%rax \n\t" \
+ "mulq %4 \n\t" \
+ "addq %1,%%rax \n\t" \
+ "adcq $0,%%rdx \n\t" \
+ "addq %%rax,%0 \n\t" \
+ "adcq $0,%%rdx \n\t" \
+ "movq %%rdx,%1 \n\t" \
+:"=g"(_c[LO]), "=r"(cy) \
+:"0"(_c[LO]), "1"(cy), "r"(mu), "r"(*tmpm++) \
+: "%rax", "%rdx", "cc")
+
+#if defined(HAVE_INTEL_MULX)
+#define MULX_INIT(a0, c0, cy)\
+ __asm__ volatile( \
+ "xorq %%r10, %%r10\n\t" \
+ "movq %1,%%rdx\n\t" \
+ "addq %2, %0\n\t" /* c0+=cy; Set CF, OF */ \
+ "adoxq %%r10, %%r10\n\t" /* Reset OF */ \
+ :"+m"(c0):"r"(a0),"r"(cy):"%r8","%r9", "%r10","%r11","%r12","%rdx") ; \
+
+#define MULX_INNERMUL_R1(c0, c1, pre, rdx)\
+ { \
+ __asm__ volatile ( \
+ "movq %3, %%rdx\n\t" \
+ "mulx %%r11,%%r9, %%r8 \n\t" \
+ "movq %2, %%r12\n\t" \
+ "adoxq %%r9,%0 \n\t" \
+ "adcxq %%r8,%1 \n\t" \
+ :"+r"(c0),"+r"(c1):"m"(pre),"r"(rdx):"%r8","%r9", "%r10", "%r11","%r12","%rdx" \
+ ); }
+
+
+#define MULX_INNERMUL_R2(c0, c1, pre, rdx)\
+ { \
+ __asm__ volatile ( \
+ "movq %3, %%rdx\n\t" \
+ "mulx %%r12,%%r9, %%r8 \n\t" \
+ "movq %2, %%r11\n\t" \
+ "adoxq %%r9,%0 \n\t" \
+ "adcxq %%r8,%1 \n\t" \
+ :"+r"(c0),"+r"(c1):"m"(pre),"r"(rdx):"%r8","%r9", "%r10", "%r11","%r12","%rdx" \
+ ); }
+
+#define MULX_LOAD_R1(val)\
+ __asm__ volatile ( \
+ "movq %0, %%r11\n\t"\
+ ::"m"(val):"%r8","%r9", "%r10", "%r11","%r12","%rdx"\
+) ;
+
+#define MULX_INNERMUL_LAST(c0, c1, rdx)\
+ { \
+ __asm__ volatile ( \
+ "movq %2, %%rdx\n\t" \
+ "mulx %%r12,%%r9, %%r8 \n\t" \
+ "movq $0, %%r10 \n\t" \
+ "adoxq %%r10, %%r9 \n\t" \
+ "adcq $0,%%r8 \n\t" \
+ "addq %%r9,%0 \n\t" \
+ "adcq $0,%%r8 \n\t" \
+ "movq %%r8,%1 \n\t" \
+ :"+m"(c0),"=m"(c1):"r"(rdx):"%r8","%r9","%r10", "%r11", "%r12","%rdx"\
+ ); }
+
+#define MULX_INNERMUL8(x,y,z,cy)\
+{ word64 rdx = y ;\
+ MULX_LOAD_R1(x[0]) ;\
+ MULX_INIT(y, _c0, cy) ; /* rdx=y; z0+=cy; */ \
+ MULX_INNERMUL_R1(_c0, _c1, x[1], rdx) ;\
+ MULX_INNERMUL_R2(_c1, _c2, x[2], rdx) ;\
+ MULX_INNERMUL_R1(_c2, _c3, x[3], rdx) ;\
+ MULX_INNERMUL_R2(_c3, _c4, x[4], rdx) ;\
+ MULX_INNERMUL_R1(_c4, _c5, x[5], rdx) ;\
+ MULX_INNERMUL_R2(_c5, _c6, x[6], rdx) ;\
+ MULX_INNERMUL_R1(_c6, _c7, x[7], rdx) ;\
+ MULX_INNERMUL_LAST(_c7, cy, rdx) ;\
+}
+#define INNERMUL8_MULX \
+{\
+ MULX_INNERMUL8(tmpm, mu, _c, cy);\
+}
+#endif
+
+#define INNERMUL8 \
+ __asm__( \
+ "movq 0(%5),%%rax \n\t" \
+ "movq 0(%2),%%r10 \n\t" \
+ "movq 0x8(%5),%%r11 \n\t" \
+ "mulq %4 \n\t" \
+ "addq %%r10,%%rax \n\t" \
+ "adcq $0,%%rdx \n\t" \
+ "movq 0x8(%2),%%r10 \n\t" \
+ "addq %3,%%rax \n\t" \
+ "adcq $0,%%rdx \n\t" \
+ "movq %%rax,0(%0) \n\t" \
+ "movq %%rdx,%1 \n\t" \
+ \
+ "movq %%r11,%%rax \n\t" \
+ "movq 0x10(%5),%%r11 \n\t" \
+ "mulq %4 \n\t" \
+ "addq %%r10,%%rax \n\t" \
+ "adcq $0,%%rdx \n\t" \
+ "movq 0x10(%2),%%r10 \n\t" \
+ "addq %3,%%rax \n\t" \
+ "adcq $0,%%rdx \n\t" \
+ "movq %%rax,0x8(%0) \n\t" \
+ "movq %%rdx,%1 \n\t" \
+ \
+ "movq %%r11,%%rax \n\t" \
+ "movq 0x18(%5),%%r11 \n\t" \
+ "mulq %4 \n\t" \
+ "addq %%r10,%%rax \n\t" \
+ "adcq $0,%%rdx \n\t" \
+ "movq 0x18(%2),%%r10 \n\t" \
+ "addq %3,%%rax \n\t" \
+ "adcq $0,%%rdx \n\t" \
+ "movq %%rax,0x10(%0) \n\t" \
+ "movq %%rdx,%1 \n\t" \
+ \
+ "movq %%r11,%%rax \n\t" \
+ "movq 0x20(%5),%%r11 \n\t" \
+ "mulq %4 \n\t" \
+ "addq %%r10,%%rax \n\t" \
+ "adcq $0,%%rdx \n\t" \
+ "movq 0x20(%2),%%r10 \n\t" \
+ "addq %3,%%rax \n\t" \
+ "adcq $0,%%rdx \n\t" \
+ "movq %%rax,0x18(%0) \n\t" \
+ "movq %%rdx,%1 \n\t" \
+ \
+ "movq %%r11,%%rax \n\t" \
+ "movq 0x28(%5),%%r11 \n\t" \
+ "mulq %4 \n\t" \
+ "addq %%r10,%%rax \n\t" \
+ "adcq $0,%%rdx \n\t" \
+ "movq 0x28(%2),%%r10 \n\t" \
+ "addq %3,%%rax \n\t" \
+ "adcq $0,%%rdx \n\t" \
+ "movq %%rax,0x20(%0) \n\t" \
+ "movq %%rdx,%1 \n\t" \
+ \
+ "movq %%r11,%%rax \n\t" \
+ "movq 0x30(%5),%%r11 \n\t" \
+ "mulq %4 \n\t" \
+ "addq %%r10,%%rax \n\t" \
+ "adcq $0,%%rdx \n\t" \
+ "movq 0x30(%2),%%r10 \n\t" \
+ "addq %3,%%rax \n\t" \
+ "adcq $0,%%rdx \n\t" \
+ "movq %%rax,0x28(%0) \n\t" \
+ "movq %%rdx,%1 \n\t" \
+ \
+ "movq %%r11,%%rax \n\t" \
+ "movq 0x38(%5),%%r11 \n\t" \
+ "mulq %4 \n\t" \
+ "addq %%r10,%%rax \n\t" \
+ "adcq $0,%%rdx \n\t" \
+ "movq 0x38(%2),%%r10 \n\t" \
+ "addq %3,%%rax \n\t" \
+ "adcq $0,%%rdx \n\t" \
+ "movq %%rax,0x30(%0) \n\t" \
+ "movq %%rdx,%1 \n\t" \
+ \
+ "movq %%r11,%%rax \n\t" \
+ "mulq %4 \n\t" \
+ "addq %%r10,%%rax \n\t" \
+ "adcq $0,%%rdx \n\t" \
+ "addq %3,%%rax \n\t" \
+ "adcq $0,%%rdx \n\t" \
+ "movq %%rax,0x38(%0) \n\t" \
+ "movq %%rdx,%1 \n\t" \
+ \
+:"=r"(_c), "=r"(cy) \
+: "0"(_c), "1"(cy), "g"(mu), "r"(tmpm)\
+: "%rax", "%rdx", "%r10", "%r11", "cc")\
+
+#define PROPCARRY \
+__asm__( \
+ "addq %1,%0 \n\t" \
+ "setb %%al \n\t" \
+ "movzbq %%al,%1 \n\t" \
+:"=g"(_c[LO]), "=r"(cy) \
+:"0"(_c[LO]), "1"(cy) \
+: "%rax", "cc")
+
+/******************************************************************/
+#elif defined(TFM_SSE2)
+/* SSE2 code (assumes 32-bit fp_digits) */
+/* XMM register assignments:
+ * xmm0 *tmpm++, then Mu * (*tmpm++)
+ * xmm1 c[x], then Mu
+ * xmm2 mp
+ * xmm3 cy
+ * xmm4 _c[LO]
+ */
+
+#define MONT_START \
+ __asm__("movd %0,%%mm2"::"g"(mp))
+
+#define MONT_FINI \
+ __asm__("emms")
+
+#define LOOP_START \
+__asm__( \
+"movd %0,%%mm1 \n\t" \
+"pxor %%mm3,%%mm3 \n\t" \
+"pmuludq %%mm2,%%mm1 \n\t" \
+:: "g"(c[x]))
+
+/* pmuludq on mmx registers does a 32x32->64 multiply. */
+#define INNERMUL \
+__asm__( \
+ "movd %1,%%mm4 \n\t" \
+ "movd %2,%%mm0 \n\t" \
+ "paddq %%mm4,%%mm3 \n\t" \
+ "pmuludq %%mm1,%%mm0 \n\t" \
+ "paddq %%mm0,%%mm3 \n\t" \
+ "movd %%mm3,%0 \n\t" \
+ "psrlq $32, %%mm3 \n\t" \
+:"=g"(_c[LO]) : "0"(_c[LO]), "g"(*tmpm++) );
+
+#define INNERMUL8 \
+__asm__( \
+ "movd 0(%1),%%mm4 \n\t" \
+ "movd 0(%2),%%mm0 \n\t" \
+ "paddq %%mm4,%%mm3 \n\t" \
+ "pmuludq %%mm1,%%mm0 \n\t" \
+ "movd 4(%2),%%mm5 \n\t" \
+ "paddq %%mm0,%%mm3 \n\t" \
+ "movd 4(%1),%%mm6 \n\t" \
+ "movd %%mm3,0(%0) \n\t" \
+ "psrlq $32, %%mm3 \n\t" \
+\
+ "paddq %%mm6,%%mm3 \n\t" \
+ "pmuludq %%mm1,%%mm5 \n\t" \
+ "movd 8(%2),%%mm6 \n\t" \
+ "paddq %%mm5,%%mm3 \n\t" \
+ "movd 8(%1),%%mm7 \n\t" \
+ "movd %%mm3,4(%0) \n\t" \
+ "psrlq $32, %%mm3 \n\t" \
+\
+ "paddq %%mm7,%%mm3 \n\t" \
+ "pmuludq %%mm1,%%mm6 \n\t" \
+ "movd 12(%2),%%mm7 \n\t" \
+ "paddq %%mm6,%%mm3 \n\t" \
+ "movd 12(%1),%%mm5 \n\t" \
+ "movd %%mm3,8(%0) \n\t" \
+ "psrlq $32, %%mm3 \n\t" \
+\
+ "paddq %%mm5,%%mm3 \n\t" \
+ "pmuludq %%mm1,%%mm7 \n\t" \
+ "movd 16(%2),%%mm5 \n\t" \
+ "paddq %%mm7,%%mm3 \n\t" \
+ "movd 16(%1),%%mm6 \n\t" \
+ "movd %%mm3,12(%0) \n\t" \
+ "psrlq $32, %%mm3 \n\t" \
+\
+ "paddq %%mm6,%%mm3 \n\t" \
+ "pmuludq %%mm1,%%mm5 \n\t" \
+ "movd 20(%2),%%mm6 \n\t" \
+ "paddq %%mm5,%%mm3 \n\t" \
+ "movd 20(%1),%%mm7 \n\t" \
+ "movd %%mm3,16(%0) \n\t" \
+ "psrlq $32, %%mm3 \n\t" \
+\
+ "paddq %%mm7,%%mm3 \n\t" \
+ "pmuludq %%mm1,%%mm6 \n\t" \
+ "movd 24(%2),%%mm7 \n\t" \
+ "paddq %%mm6,%%mm3 \n\t" \
+ "movd 24(%1),%%mm5 \n\t" \
+ "movd %%mm3,20(%0) \n\t" \
+ "psrlq $32, %%mm3 \n\t" \
+\
+ "paddq %%mm5,%%mm3 \n\t" \
+ "pmuludq %%mm1,%%mm7 \n\t" \
+ "movd 28(%2),%%mm5 \n\t" \
+ "paddq %%mm7,%%mm3 \n\t" \
+ "movd 28(%1),%%mm6 \n\t" \
+ "movd %%mm3,24(%0) \n\t" \
+ "psrlq $32, %%mm3 \n\t" \
+\
+ "paddq %%mm6,%%mm3 \n\t" \
+ "pmuludq %%mm1,%%mm5 \n\t" \
+ "paddq %%mm5,%%mm3 \n\t" \
+ "movd %%mm3,28(%0) \n\t" \
+ "psrlq $32, %%mm3 \n\t" \
+:"=r"(_c) : "0"(_c), "r"(tmpm) );
+
+/* TAO switched tmpm from "g" to "r" after gcc tried to index the indexed stack
+ pointer */
+
+#define LOOP_END \
+__asm__( "movd %%mm3,%0 \n" :"=r"(cy))
+
+#define PROPCARRY \
+__asm__( \
+ "addl %1,%0 \n\t" \
+ "setb %%al \n\t" \
+ "movzbl %%al,%1 \n\t" \
+:"=g"(_c[LO]), "=r"(cy) \
+:"0"(_c[LO]), "1"(cy) \
+: "%eax", "cc")
+
+/******************************************************************/
+#elif defined(TFM_ARM)
+ /* ARMv4 code */
+
+#define MONT_START
+#define MONT_FINI
+#define LOOP_END
+#define LOOP_START \
+ mu = c[x] * mp
+
+
+#ifdef __thumb__
+
+#define INNERMUL \
+__asm__( \
+ " LDR r0,%1 \n\t" \
+ " ADDS r0,r0,%0 \n\t" \
+ " ITE CS \n\t" \
+ " MOVCS %0,#1 \n\t" \
+ " MOVCC %0,#0 \n\t" \
+ " UMLAL r0,%0,%3,%4 \n\t" \
+ " STR r0,%1 \n\t" \
+:"=r"(cy),"=m"(_c[0]):"0"(cy),"r"(mu),"r"(*tmpm++),"m"(_c[0]):"r0","cc");
+
+#define PROPCARRY \
+__asm__( \
+ " LDR r0,%1 \n\t" \
+ " ADDS r0,r0,%0 \n\t" \
+ " STR r0,%1 \n\t" \
+ " ITE CS \n\t" \
+ " MOVCS %0,#1 \n\t" \
+ " MOVCC %0,#0 \n\t" \
+:"=r"(cy),"=m"(_c[0]):"0"(cy),"m"(_c[0]):"r0","cc");
+
+
+/* TAO thumb mode uses ite (if then else) to detect carry directly
+ * fixed unmatched constraint warning by changing 1 to m */
+
+#else /* __thumb__ */
+
+#define INNERMUL \
+__asm__( \
+ " LDR r0,%1 \n\t" \
+ " ADDS r0,r0,%0 \n\t" \
+ " MOVCS %0,#1 \n\t" \
+ " MOVCC %0,#0 \n\t" \
+ " UMLAL r0,%0,%3,%4 \n\t" \
+ " STR r0,%1 \n\t" \
+:"=r"(cy),"=m"(_c[0]):"0"(cy),"r"(mu),"r"(*tmpm++),"1"(_c[0]):"r0","cc");
+
+#define PROPCARRY \
+__asm__( \
+ " LDR r0,%1 \n\t" \
+ " ADDS r0,r0,%0 \n\t" \
+ " STR r0,%1 \n\t" \
+ " MOVCS %0,#1 \n\t" \
+ " MOVCC %0,#0 \n\t" \
+:"=r"(cy),"=m"(_c[0]):"0"(cy),"1"(_c[0]):"r0","cc");
+
+#endif /* __thumb__ */
+
+#elif defined(TFM_PPC32)
+
+/* PPC32 */
+#define MONT_START
+#define MONT_FINI
+#define LOOP_END
+#define LOOP_START \
+ mu = c[x] * mp
+
+#define INNERMUL \
+__asm__( \
+ " mullw 16,%3,%4 \n\t" \
+ " mulhwu 17,%3,%4 \n\t" \
+ " addc 16,16,%2 \n\t" \
+ " addze 17,17 \n\t" \
+ " addc %1,16,%5 \n\t" \
+ " addze %0,17 \n\t" \
+:"=r"(cy),"=r"(_c[0]):"0"(cy),"r"(mu),"r"(tmpm[0]),"1"(_c[0]):"16", "17", "cc"); ++tmpm;
+
+#define PROPCARRY \
+__asm__( \
+ " addc %1,%3,%2 \n\t" \
+ " xor %0,%2,%2 \n\t" \
+ " addze %0,%2 \n\t" \
+:"=r"(cy),"=r"(_c[0]):"0"(cy),"1"(_c[0]):"cc");
+
+#elif defined(TFM_PPC64)
+
+/* PPC64 */
+#define MONT_START
+#define MONT_FINI
+#define LOOP_END
+#define LOOP_START \
+ mu = c[x] * mp
+
+#define INNERMUL \
+__asm__( \
+ " mulld 16,%3,%4 \n\t" \
+ " mulhdu 17,%3,%4 \n\t" \
+ " addc 16,16,%0 \n\t" \
+ " addze 17,17 \n\t" \
+ " ldx 18,0,%1 \n\t" \
+ " addc 16,16,18 \n\t" \
+ " addze %0,17 \n\t" \
+ " sdx 16,0,%1 \n\t" \
+:"=r"(cy),"=m"(_c[0]):"0"(cy),"r"(mu),"r"(tmpm[0]),"1"(_c[0]):"16", "17", "18","cc"); ++tmpm;
+
+#define PROPCARRY \
+__asm__( \
+ " ldx 16,0,%1 \n\t" \
+ " addc 16,16,%0 \n\t" \
+ " sdx 16,0,%1 \n\t" \
+ " xor %0,%0,%0 \n\t" \
+ " addze %0,%0 \n\t" \
+:"=r"(cy),"=m"(_c[0]):"0"(cy),"1"(_c[0]):"16","cc");
+
+/******************************************************************/
+
+#elif defined(TFM_AVR32)
+
+/* AVR32 */
+#define MONT_START
+#define MONT_FINI
+#define LOOP_END
+#define LOOP_START \
+ mu = c[x] * mp
+
+#define INNERMUL \
+__asm__( \
+ " ld.w r2,%1 \n\t" \
+ " add r2,%0 \n\t" \
+ " eor r3,r3 \n\t" \
+ " acr r3 \n\t" \
+ " macu.d r2,%3,%4 \n\t" \
+ " st.w %1,r2 \n\t" \
+ " mov %0,r3 \n\t" \
+:"=r"(cy),"=r"(_c):"0"(cy),"r"(mu),"r"(*tmpm++),"1"(_c):"r2","r3");
+
+#define PROPCARRY \
+__asm__( \
+ " ld.w r2,%1 \n\t" \
+ " add r2,%0 \n\t" \
+ " st.w %1,r2 \n\t" \
+ " eor %0,%0 \n\t" \
+ " acr %0 \n\t" \
+:"=r"(cy),"=r"(&_c[0]):"0"(cy),"1"(&_c[0]):"r2","cc");
+
+#else
+
+/* ISO C code */
+#define MONT_START
+#define MONT_FINI
+#define LOOP_END
+#define LOOP_START \
+ mu = c[x] * mp
+
+#define INNERMUL \
+ do { fp_word t; \
+ t = ((fp_word)_c[0] + (fp_word)cy) + \
+ (((fp_word)mu) * ((fp_word)*tmpm++)); \
+ _c[0] = (fp_digit)t; \
+ cy = (fp_digit)(t >> DIGIT_BIT); \
+ } while (0)
+
+#define PROPCARRY \
+ do { fp_digit t = _c[0] += cy; cy = (t < cy); } while (0)
+
+#endif
+/******************************************************************/
+
+
+#define LO 0
+/* end fp_montogomery_reduce.c asm */
+
+
+/* start fp_sqr_comba.c asm */
+#if defined(TFM_X86)
+
+/* x86-32 optimized */
+
+#define COMBA_START
+
+#define CLEAR_CARRY \
+ c0 = c1 = c2 = 0;
+
+#define COMBA_STORE(x) \
+ x = c0;
+
+#define COMBA_STORE2(x) \
+ x = c1;
+
+#define CARRY_FORWARD \
+ do { c0 = c1; c1 = c2; c2 = 0; } while (0);
+
+#define COMBA_FINI
+
+#define SQRADD(i, j) \
+__asm__( \
+ "movl %6,%%eax \n\t" \
+ "mull %%eax \n\t" \
+ "addl %%eax,%0 \n\t" \
+ "adcl %%edx,%1 \n\t" \
+ "adcl $0,%2 \n\t" \
+ :"=r"(c0), "=r"(c1), "=r"(c2): "0"(c0), "1"(c1), "2"(c2), "m"(i) :"%eax","%edx","cc");
+
+#define SQRADD2(i, j) \
+__asm__( \
+ "movl %6,%%eax \n\t" \
+ "mull %7 \n\t" \
+ "addl %%eax,%0 \n\t" \
+ "adcl %%edx,%1 \n\t" \
+ "adcl $0,%2 \n\t" \
+ "addl %%eax,%0 \n\t" \
+ "adcl %%edx,%1 \n\t" \
+ "adcl $0,%2 \n\t" \
+ :"=r"(c0), "=r"(c1), "=r"(c2): "0"(c0), "1"(c1), "2"(c2), "m"(i), "m"(j) :"%eax","%edx", "cc");
+
+#define SQRADDSC(i, j) \
+__asm__( \
+ "movl %3,%%eax \n\t" \
+ "mull %4 \n\t" \
+ "movl %%eax,%0 \n\t" \
+ "movl %%edx,%1 \n\t" \
+ "xorl %2,%2 \n\t" \
+ :"=r"(sc0), "=r"(sc1), "=r"(sc2): "g"(i), "g"(j) :"%eax","%edx","cc");
+
+/* TAO removed sc0,1,2 as input to remove warning so %6,%7 become %3,%4 */
+
+#define SQRADDAC(i, j) \
+__asm__( \
+ "movl %6,%%eax \n\t" \
+ "mull %7 \n\t" \
+ "addl %%eax,%0 \n\t" \
+ "adcl %%edx,%1 \n\t" \
+ "adcl $0,%2 \n\t" \
+ :"=r"(sc0), "=r"(sc1), "=r"(sc2): "0"(sc0), "1"(sc1), "2"(sc2), "g"(i), "g"(j) :"%eax","%edx","cc");
+
+#define SQRADDDB \
+__asm__( \
+ "addl %6,%0 \n\t" \
+ "adcl %7,%1 \n\t" \
+ "adcl %8,%2 \n\t" \
+ "addl %6,%0 \n\t" \
+ "adcl %7,%1 \n\t" \
+ "adcl %8,%2 \n\t" \
+ :"=r"(c0), "=r"(c1), "=r"(c2) : "0"(c0), "1"(c1), "2"(c2), "r"(sc0), "r"(sc1), "r"(sc2) : "cc");
+
+#elif defined(TFM_X86_64)
+/* x86-64 optimized */
+
+#define COMBA_START
+
+#define CLEAR_CARRY \
+ c0 = c1 = c2 = 0;
+
+#define COMBA_STORE(x) \
+ x = c0;
+
+#define COMBA_STORE2(x) \
+ x = c1;
+
+#define CARRY_FORWARD \
+ do { c0 = c1; c1 = c2; c2 = 0; } while (0);
+
+#define COMBA_FINI
+
+#define SQRADD(i, j) \
+__asm__( \
+ "movq %6,%%rax \n\t" \
+ "mulq %%rax \n\t" \
+ "addq %%rax,%0 \n\t" \
+ "adcq %%rdx,%1 \n\t" \
+ "adcq $0,%2 \n\t" \
+ :"=r"(c0), "=r"(c1), "=r"(c2): "0"(c0), "1"(c1), "2"(c2), "x"(i) :"%rax","%rdx","cc");
+
+#define SQRADD2(i, j) \
+__asm__( \
+ "movq %6,%%rax \n\t" \
+ "mulq %7 \n\t" \
+ "addq %%rax,%0 \n\t" \
+ "adcq %%rdx,%1 \n\t" \
+ "adcq $0,%2 \n\t" \
+ "addq %%rax,%0 \n\t" \
+ "adcq %%rdx,%1 \n\t" \
+ "adcq $0,%2 \n\t" \
+ :"=r"(c0), "=r"(c1), "=r"(c2): "0"(c0), "1"(c1), "2"(c2), "g"(i), "g"(j) :"%rax","%rdx","cc");
+
+#define SQRADDSC(i, j) \
+__asm__( \
+ "movq %3,%%rax \n\t" \
+ "mulq %4 \n\t" \
+ "movq %%rax,%0 \n\t" \
+ "movq %%rdx,%1 \n\t" \
+ "xorq %2,%2 \n\t" \
+ :"=r"(sc0), "=r"(sc1), "=r"(sc2): "g"(i), "g"(j) :"%rax","%rdx","cc");
+
+/* TAO removed sc0,1,2 as input to remove warning so %6,%7 become %3,%4 */
+
+#define SQRADDAC(i, j) \
+__asm__( \
+ "movq %6,%%rax \n\t" \
+ "mulq %7 \n\t" \
+ "addq %%rax,%0 \n\t" \
+ "adcq %%rdx,%1 \n\t" \
+ "adcq $0,%2 \n\t" \
+ :"=r"(sc0), "=r"(sc1), "=r"(sc2): "0"(sc0), "1"(sc1), "2"(sc2), "g"(i), "g"(j) :"%rax","%rdx","cc");
+
+#define SQRADDDB \
+__asm__( \
+ "addq %6,%0 \n\t" \
+ "adcq %7,%1 \n\t" \
+ "adcq %8,%2 \n\t" \
+ "addq %6,%0 \n\t" \
+ "adcq %7,%1 \n\t" \
+ "adcq %8,%2 \n\t" \
+ :"=r"(c0), "=r"(c1), "=r"(c2) : "0"(c0), "1"(c1), "2"(c2), "r"(sc0), "r"(sc1), "r"(sc2) : "cc");
+
+#elif defined(TFM_SSE2)
+
+/* SSE2 Optimized */
+#define COMBA_START
+
+#define CLEAR_CARRY \
+ c0 = c1 = c2 = 0;
+
+#define COMBA_STORE(x) \
+ x = c0;
+
+#define COMBA_STORE2(x) \
+ x = c1;
+
+#define CARRY_FORWARD \
+ do { c0 = c1; c1 = c2; c2 = 0; } while (0);
+
+#define COMBA_FINI \
+ __asm__("emms");
+
+#define SQRADD(i, j) \
+__asm__( \
+ "movd %6,%%mm0 \n\t" \
+ "pmuludq %%mm0,%%mm0\n\t" \
+ "movd %%mm0,%%eax \n\t" \
+ "psrlq $32,%%mm0 \n\t" \
+ "addl %%eax,%0 \n\t" \
+ "movd %%mm0,%%eax \n\t" \
+ "adcl %%eax,%1 \n\t" \
+ "adcl $0,%2 \n\t" \
+ :"=r"(c0), "=r"(c1), "=r"(c2): "0"(c0), "1"(c1), "2"(c2), "m"(i) :"%eax","cc");
+
+#define SQRADD2(i, j) \
+__asm__( \
+ "movd %6,%%mm0 \n\t" \
+ "movd %7,%%mm1 \n\t" \
+ "pmuludq %%mm1,%%mm0\n\t" \
+ "movd %%mm0,%%eax \n\t" \
+ "psrlq $32,%%mm0 \n\t" \
+ "movd %%mm0,%%edx \n\t" \
+ "addl %%eax,%0 \n\t" \
+ "adcl %%edx,%1 \n\t" \
+ "adcl $0,%2 \n\t" \
+ "addl %%eax,%0 \n\t" \
+ "adcl %%edx,%1 \n\t" \
+ "adcl $0,%2 \n\t" \
+ :"=r"(c0), "=r"(c1), "=r"(c2): "0"(c0), "1"(c1), "2"(c2), "m"(i), "m"(j) :"%eax","%edx","cc");
+
+#define SQRADDSC(i, j) \
+__asm__( \
+ "movd %3,%%mm0 \n\t" \
+ "movd %4,%%mm1 \n\t" \
+ "pmuludq %%mm1,%%mm0\n\t" \
+ "movd %%mm0,%0 \n\t" \
+ "psrlq $32,%%mm0 \n\t" \
+ "movd %%mm0,%1 \n\t" \
+ "xorl %2,%2 \n\t" \
+ :"=r"(sc0), "=r"(sc1), "=r"(sc2): "m"(i), "m"(j));
+
+/* TAO removed sc0,1,2 as input to remove warning so %6,%7 become %3,%4 */
+
+#define SQRADDAC(i, j) \
+__asm__( \
+ "movd %6,%%mm0 \n\t" \
+ "movd %7,%%mm1 \n\t" \
+ "pmuludq %%mm1,%%mm0\n\t" \
+ "movd %%mm0,%%eax \n\t" \
+ "psrlq $32,%%mm0 \n\t" \
+ "movd %%mm0,%%edx \n\t" \
+ "addl %%eax,%0 \n\t" \
+ "adcl %%edx,%1 \n\t" \
+ "adcl $0,%2 \n\t" \
+ :"=r"(sc0), "=r"(sc1), "=r"(sc2): "0"(sc0), "1"(sc1), "2"(sc2), "m"(i), "m"(j) :"%eax","%edx","cc");
+
+#define SQRADDDB \
+__asm__( \
+ "addl %6,%0 \n\t" \
+ "adcl %7,%1 \n\t" \
+ "adcl %8,%2 \n\t" \
+ "addl %6,%0 \n\t" \
+ "adcl %7,%1 \n\t" \
+ "adcl %8,%2 \n\t" \
+ :"=r"(c0), "=r"(c1), "=r"(c2) : "0"(c0), "1"(c1), "2"(c2), "r"(sc0), "r"(sc1), "r"(sc2) : "cc");
+
+#elif defined(TFM_ARM)
+
+/* ARM code */
+
+#define COMBA_START
+
+#define CLEAR_CARRY \
+ c0 = c1 = c2 = 0;
+
+#define COMBA_STORE(x) \
+ x = c0;
+
+#define COMBA_STORE2(x) \
+ x = c1;
+
+#define CARRY_FORWARD \
+ do { c0 = c1; c1 = c2; c2 = 0; } while (0);
+
+#define COMBA_FINI
+
+/* multiplies point i and j, updates carry "c1" and digit c2 */
+#define SQRADD(i, j) \
+__asm__( \
+" UMULL r0,r1,%6,%6 \n\t" \
+" ADDS %0,%0,r0 \n\t" \
+" ADCS %1,%1,r1 \n\t" \
+" ADC %2,%2,#0 \n\t" \
+:"=r"(c0), "=r"(c1), "=r"(c2) : "0"(c0), "1"(c1), "2"(c2), "r"(i) : "r0", "r1", "cc");
+
+/* for squaring some of the terms are doubled... */
+#define SQRADD2(i, j) \
+__asm__( \
+" UMULL r0,r1,%6,%7 \n\t" \
+" ADDS %0,%0,r0 \n\t" \
+" ADCS %1,%1,r1 \n\t" \
+" ADC %2,%2,#0 \n\t" \
+" ADDS %0,%0,r0 \n\t" \
+" ADCS %1,%1,r1 \n\t" \
+" ADC %2,%2,#0 \n\t" \
+:"=r"(c0), "=r"(c1), "=r"(c2) : "0"(c0), "1"(c1), "2"(c2), "r"(i), "r"(j) : "r0", "r1", "cc");
+
+#define SQRADDSC(i, j) \
+__asm__( \
+" UMULL %0,%1,%3,%4 \n\t" \
+" SUB %2,%2,%2 \n\t" \
+:"=r"(sc0), "=r"(sc1), "=r"(sc2) : "r"(i), "r"(j) : "cc");
+
+/* TAO removed sc0,1,2 as input to remove warning so %6,%7 become %3,%4 */
+
+#define SQRADDAC(i, j) \
+__asm__( \
+" UMULL r0,r1,%6,%7 \n\t" \
+" ADDS %0,%0,r0 \n\t" \
+" ADCS %1,%1,r1 \n\t" \
+" ADC %2,%2,#0 \n\t" \
+:"=r"(sc0), "=r"(sc1), "=r"(sc2) : "0"(sc0), "1"(sc1), "2"(sc2), "r"(i), "r"(j) : "r0", "r1", "cc");
+
+#define SQRADDDB \
+__asm__( \
+" ADDS %0,%0,%3 \n\t" \
+" ADCS %1,%1,%4 \n\t" \
+" ADC %2,%2,%5 \n\t" \
+" ADDS %0,%0,%3 \n\t" \
+" ADCS %1,%1,%4 \n\t" \
+" ADC %2,%2,%5 \n\t" \
+:"=r"(c0), "=r"(c1), "=r"(c2) : "r"(sc0), "r"(sc1), "r"(sc2), "0"(c0), "1"(c1), "2"(c2) : "cc");
+
+#elif defined(TFM_PPC32)
+
+/* PPC32 */
+
+#define COMBA_START
+
+#define CLEAR_CARRY \
+ c0 = c1 = c2 = 0;
+
+#define COMBA_STORE(x) \
+ x = c0;
+
+#define COMBA_STORE2(x) \
+ x = c1;
+
+#define CARRY_FORWARD \
+ do { c0 = c1; c1 = c2; c2 = 0; } while (0);
+
+#define COMBA_FINI
+
+/* multiplies point i and j, updates carry "c1" and digit c2 */
+#define SQRADD(i, j) \
+__asm__( \
+ " mullw 16,%6,%6 \n\t" \
+ " addc %0,%0,16 \n\t" \
+ " mulhwu 16,%6,%6 \n\t" \
+ " adde %1,%1,16 \n\t" \
+ " addze %2,%2 \n\t" \
+:"=r"(c0), "=r"(c1), "=r"(c2):"0"(c0), "1"(c1), "2"(c2), "r"(i):"16","cc");
+
+/* for squaring some of the terms are doubled... */
+#define SQRADD2(i, j) \
+__asm__( \
+ " mullw 16,%6,%7 \n\t" \
+ " mulhwu 17,%6,%7 \n\t" \
+ " addc %0,%0,16 \n\t" \
+ " adde %1,%1,17 \n\t" \
+ " addze %2,%2 \n\t" \
+ " addc %0,%0,16 \n\t" \
+ " adde %1,%1,17 \n\t" \
+ " addze %2,%2 \n\t" \
+:"=r"(c0), "=r"(c1), "=r"(c2):"0"(c0), "1"(c1), "2"(c2), "r"(i), "r"(j):"16", "17","cc");
+
+#define SQRADDSC(i, j) \
+__asm__( \
+ " mullw %0,%6,%7 \n\t" \
+ " mulhwu %1,%6,%7 \n\t" \
+ " xor %2,%2,%2 \n\t" \
+:"=r"(sc0), "=r"(sc1), "=r"(sc2):"0"(sc0), "1"(sc1), "2"(sc2), "r"(i),"r"(j) : "cc");
+
+#define SQRADDAC(i, j) \
+__asm__( \
+ " mullw 16,%6,%7 \n\t" \
+ " addc %0,%0,16 \n\t" \
+ " mulhwu 16,%6,%7 \n\t" \
+ " adde %1,%1,16 \n\t" \
+ " addze %2,%2 \n\t" \
+:"=r"(sc0), "=r"(sc1), "=r"(sc2):"0"(sc0), "1"(sc1), "2"(sc2), "r"(i), "r"(j):"16", "cc");
+
+#define SQRADDDB \
+__asm__( \
+ " addc %0,%0,%3 \n\t" \
+ " adde %1,%1,%4 \n\t" \
+ " adde %2,%2,%5 \n\t" \
+ " addc %0,%0,%3 \n\t" \
+ " adde %1,%1,%4 \n\t" \
+ " adde %2,%2,%5 \n\t" \
+:"=r"(c0), "=r"(c1), "=r"(c2) : "r"(sc0), "r"(sc1), "r"(sc2), "0"(c0), "1"(c1), "2"(c2) : "cc");
+
+#elif defined(TFM_PPC64)
+/* PPC64 */
+
+#define COMBA_START
+
+#define CLEAR_CARRY \
+ c0 = c1 = c2 = 0;
+
+#define COMBA_STORE(x) \
+ x = c0;
+
+#define COMBA_STORE2(x) \
+ x = c1;
+
+#define CARRY_FORWARD \
+ do { c0 = c1; c1 = c2; c2 = 0; } while (0);
+
+#define COMBA_FINI
+
+/* multiplies point i and j, updates carry "c1" and digit c2 */
+#define SQRADD(i, j) \
+__asm__( \
+ " mulld 16,%6,%6 \n\t" \
+ " addc %0,%0,16 \n\t" \
+ " mulhdu 16,%6,%6 \n\t" \
+ " adde %1,%1,16 \n\t" \
+ " addze %2,%2 \n\t" \
+:"=r"(c0), "=r"(c1), "=r"(c2):"0"(c0), "1"(c1), "2"(c2), "r"(i):"16","cc");
+
+/* for squaring some of the terms are doubled... */
+#define SQRADD2(i, j) \
+__asm__( \
+ " mulld 16,%6,%7 \n\t" \
+ " mulhdu 17,%6,%7 \n\t" \
+ " addc %0,%0,16 \n\t" \
+ " adde %1,%1,17 \n\t" \
+ " addze %2,%2 \n\t" \
+ " addc %0,%0,16 \n\t" \
+ " adde %1,%1,17 \n\t" \
+ " addze %2,%2 \n\t" \
+:"=r"(c0), "=r"(c1), "=r"(c2):"0"(c0), "1"(c1), "2"(c2), "r"(i), "r"(j):"16", "17","cc");
+
+#define SQRADDSC(i, j) \
+__asm__( \
+ " mulld %0,%6,%7 \n\t" \
+ " mulhdu %1,%6,%7 \n\t" \
+ " xor %2,%2,%2 \n\t" \
+:"=r"(sc0), "=r"(sc1), "=r"(sc2):"0"(sc0), "1"(sc1), "2"(sc2), "r"(i),"r"(j) : "cc");
+
+#define SQRADDAC(i, j) \
+__asm__( \
+ " mulld 16,%6,%7 \n\t" \
+ " addc %0,%0,16 \n\t" \
+ " mulhdu 16,%6,%7 \n\t" \
+ " adde %1,%1,16 \n\t" \
+ " addze %2,%2 \n\t" \
+:"=r"(sc0), "=r"(sc1), "=r"(sc2):"0"(sc0), "1"(sc1), "2"(sc2), "r"(i), "r"(j):"16", "cc");
+
+#define SQRADDDB \
+__asm__( \
+ " addc %0,%0,%3 \n\t" \
+ " adde %1,%1,%4 \n\t" \
+ " adde %2,%2,%5 \n\t" \
+ " addc %0,%0,%3 \n\t" \
+ " adde %1,%1,%4 \n\t" \
+ " adde %2,%2,%5 \n\t" \
+:"=r"(c0), "=r"(c1), "=r"(c2) : "r"(sc0), "r"(sc1), "r"(sc2), "0"(c0), "1"(c1), "2"(c2) : "cc");
+
+
+#elif defined(TFM_AVR32)
+
+/* AVR32 */
+
+#define COMBA_START
+
+#define CLEAR_CARRY \
+ c0 = c1 = c2 = 0;
+
+#define COMBA_STORE(x) \
+ x = c0;
+
+#define COMBA_STORE2(x) \
+ x = c1;
+
+#define CARRY_FORWARD \
+ do { c0 = c1; c1 = c2; c2 = 0; } while (0);
+
+#define COMBA_FINI
+
+/* multiplies point i and j, updates carry "c1" and digit c2 */
+#define SQRADD(i, j) \
+__asm__( \
+ " mulu.d r2,%6,%6 \n\t" \
+ " add %0,%0,r2 \n\t" \
+ " adc %1,%1,r3 \n\t" \
+ " acr %2 \n\t" \
+:"=r"(c0), "=r"(c1), "=r"(c2):"0"(c0), "1"(c1), "2"(c2), "r"(i):"r2","r3");
+
+/* for squaring some of the terms are doubled... */
+#define SQRADD2(i, j) \
+__asm__( \
+ " mulu.d r2,%6,%7 \n\t" \
+ " add %0,%0,r2 \n\t" \
+ " adc %1,%1,r3 \n\t" \
+ " acr %2, \n\t" \
+ " add %0,%0,r2 \n\t" \
+ " adc %1,%1,r3 \n\t" \
+ " acr %2, \n\t" \
+:"=r"(c0), "=r"(c1), "=r"(c2):"0"(c0), "1"(c1), "2"(c2), "r"(i), "r"(j):"r2", "r3");
+
+#define SQRADDSC(i, j) \
+__asm__( \
+ " mulu.d r2,%6,%7 \n\t" \
+ " mov %0,r2 \n\t" \
+ " mov %1,r3 \n\t" \
+ " eor %2,%2 \n\t" \
+:"=r"(sc0), "=r"(sc1), "=r"(sc2):"0"(sc0), "1"(sc1), "2"(sc2), "r"(i),"r"(j) : "r2", "r3");
+
+#define SQRADDAC(i, j) \
+__asm__( \
+ " mulu.d r2,%6,%7 \n\t" \
+ " add %0,%0,r2 \n\t" \
+ " adc %1,%1,r3 \n\t" \
+ " acr %2 \n\t" \
+:"=r"(sc0), "=r"(sc1), "=r"(sc2):"0"(sc0), "1"(sc1), "2"(sc2), "r"(i), "r"(j):"r2", "r3");
+
+#define SQRADDDB \
+__asm__( \
+ " add %0,%0,%3 \n\t" \
+ " adc %1,%1,%4 \n\t" \
+ " adc %2,%2,%5 \n\t" \
+ " add %0,%0,%3 \n\t" \
+ " adc %1,%1,%4 \n\t" \
+ " adc %2,%2,%5 \n\t" \
+:"=r"(c0), "=r"(c1), "=r"(c2) : "r"(sc0), "r"(sc1), "r"(sc2), "0"(c0), "1"(c1), "2"(c2) : "cc");
+
+
+#else
+
+#define TFM_ISO
+
+/* ISO C portable code */
+
+#define COMBA_START
+
+#define CLEAR_CARRY \
+ c0 = c1 = c2 = 0;
+
+#define COMBA_STORE(x) \
+ x = c0;
+
+#define COMBA_STORE2(x) \
+ x = c1;
+
+#define CARRY_FORWARD \
+ do { c0 = c1; c1 = c2; c2 = 0; } while (0);
+
+#define COMBA_FINI
+
+/* multiplies point i and j, updates carry "c1" and digit c2 */
+#define SQRADD(i, j) \
+ do { fp_word t; \
+ t = c0 + ((fp_word)i) * ((fp_word)j); c0 = (fp_digit)t; \
+ t = c1 + (t >> DIGIT_BIT); c1 = (fp_digit)t; \
+ c2 +=(fp_digit) (t >> DIGIT_BIT); \
+ } while (0);
+
+
+/* for squaring some of the terms are doubled... */
+#define SQRADD2(i, j) \
+ do { fp_word t; \
+ t = ((fp_word)i) * ((fp_word)j); \
+ tt = (fp_word)c0 + t; c0 = (fp_digit)tt; \
+ tt = (fp_word)c1 + (tt >> DIGIT_BIT); c1 = (fp_digit)tt; \
+ c2 +=(fp_digit)( tt >> DIGIT_BIT); \
+ tt = (fp_word)c0 + t; c0 = (fp_digit)tt; \
+ tt = (fp_word)c1 + (tt >> DIGIT_BIT); c1 = (fp_digit)tt; \
+ c2 +=(fp_digit) (tt >> DIGIT_BIT); \
+ } while (0);
+
+#define SQRADDSC(i, j) \
+ do { fp_word t; \
+ t = ((fp_word)i) * ((fp_word)j); \
+ sc0 = (fp_digit)t; sc1 = (t >> DIGIT_BIT); sc2 = 0; \
+ } while (0);
+
+#define SQRADDAC(i, j) \
+ do { fp_word t; \
+ t = sc0 + ((fp_word)i) * ((fp_word)j); sc0 = (fp_digit)t; \
+ t = sc1 + (t >> DIGIT_BIT); sc1 = (fp_digit)t; \
+ sc2 += (fp_digit)(t >> DIGIT_BIT); \
+ } while (0);
+
+#define SQRADDDB \
+ do { fp_word t; \
+ t = ((fp_word)sc0) + ((fp_word)sc0) + c0; c0 = (fp_digit)t; \
+ t = ((fp_word)sc1) + ((fp_word)sc1) + c1 + (t >> DIGIT_BIT); \
+ c1 = (fp_digit)t; \
+ c2 = c2 + (fp_digit)(((fp_word)sc2) + ((fp_word)sc2) + (t >> DIGIT_BIT)); \
+ } while (0);
+
+#endif
+
+#ifdef TFM_SMALL_SET
+ #include "fp_sqr_comba_small_set.i"
+#endif
+
+#if defined(TFM_SQR3) && FP_SIZE >= 6
+ #include "fp_sqr_comba_3.i"
+#endif
+#if defined(TFM_SQR4) && FP_SIZE >= 8
+ #include "fp_sqr_comba_4.i"
+#endif
+#if defined(TFM_SQR6) && FP_SIZE >= 12
+ #include "fp_sqr_comba_6.i"
+#endif
+#if defined(TFM_SQR7) && FP_SIZE >= 14
+ #include "fp_sqr_comba_7.i"
+#endif
+#if defined(TFM_SQR8) && FP_SIZE >= 16
+ #include "fp_sqr_comba_8.i"
+#endif
+#if defined(TFM_SQR9) && FP_SIZE >= 18
+ #include "fp_sqr_comba_9.i"
+#endif
+#if defined(TFM_SQR12) && FP_SIZE >= 24
+ #include "fp_sqr_comba_12.i"
+#endif
+#if defined(TFM_SQR17) && FP_SIZE >= 34
+ #include "fp_sqr_comba_17.i"
+#endif
+#if defined(TFM_SQR20) && FP_SIZE >= 40
+ #include "fp_sqr_comba_20.i"
+#endif
+#if defined(TFM_SQR24) && FP_SIZE >= 48
+ #include "fp_sqr_comba_24.i"
+#endif
+#if defined(TFM_SQR28) && FP_SIZE >= 56
+ #include "fp_sqr_comba_28.i"
+#endif
+#if defined(TFM_SQR32) && FP_SIZE >= 64
+ #include "fp_sqr_comba_32.i"
+#endif
+#if defined(TFM_SQR48) && FP_SIZE >= 96
+ #include "fp_sqr_comba_48.i"
+#endif
+#if defined(TFM_SQR64) && FP_SIZE >= 128
+ #include "fp_sqr_comba_64.i"
+#endif
+/* end fp_sqr_comba.c asm */
+
+/* start fp_mul_comba.c asm */
+/* these are the combas. Worship them. */
+#if defined(TFM_X86)
+/* Generic x86 optimized code */
+
+/* anything you need at the start */
+#define COMBA_START
+
+/* clear the chaining variables */
+#define COMBA_CLEAR \
+ c0 = c1 = c2 = 0;
+
+/* forward the carry to the next digit */
+#define COMBA_FORWARD \
+ do { c0 = c1; c1 = c2; c2 = 0; } while (0);
+
+/* store the first sum */
+#define COMBA_STORE(x) \
+ x = c0;
+
+/* store the second sum [carry] */
+#define COMBA_STORE2(x) \
+ x = c1;
+
+/* anything you need at the end */
+#define COMBA_FINI
+
+/* this should multiply i and j */
+#define MULADD(i, j) \
+__asm__( \
+ "movl %6,%%eax \n\t" \
+ "mull %7 \n\t" \
+ "addl %%eax,%0 \n\t" \
+ "adcl %%edx,%1 \n\t" \
+ "adcl $0,%2 \n\t" \
+ :"=r"(c0), "=r"(c1), "=r"(c2): "0"(c0), "1"(c1), "2"(c2), "m"(i), "m"(j) :"%eax","%edx","cc");
+
+#elif defined(TFM_X86_64)
+/* x86-64 optimized */
+
+/* anything you need at the start */
+#define COMBA_START
+
+/* clear the chaining variables */
+#define COMBA_CLEAR \
+ c0 = c1 = c2 = 0;
+
+/* forward the carry to the next digit */
+#define COMBA_FORWARD \
+ do { c0 = c1; c1 = c2; c2 = 0; } while (0);
+
+/* store the first sum */
+#define COMBA_STORE(x) \
+ x = c0;
+
+/* store the second sum [carry] */
+#define COMBA_STORE2(x) \
+ x = c1;
+
+/* anything you need at the end */
+#define COMBA_FINI
+
+/* this should multiply i and j */
+#define MULADD(i, j) \
+__asm__ ( \
+ "movq %6,%%rax \n\t" \
+ "mulq %7 \n\t" \
+ "addq %%rax,%0 \n\t" \
+ "adcq %%rdx,%1 \n\t" \
+ "adcq $0,%2 \n\t" \
+ :"=r"(c0), "=r"(c1), "=r"(c2): "0"(c0), "1"(c1), "2"(c2), "g"(i), "g"(j) :"%rax","%rdx","cc");
+
+
+#if defined(HAVE_INTEL_MULX)
+#define MULADD_MULX(b0, c0, c1, rdx)\
+ __asm__ volatile ( \
+ "movq %3, %%rdx\n\t" \
+ "mulx %2,%%r9, %%r8 \n\t" \
+ "adoxq %%r9,%0 \n\t" \
+ "adcxq %%r8,%1 \n\t" \
+ :"+r"(c0),"+r"(c1):"r"(b0), "r"(rdx):"%r8","%r9","%r10","%rdx"\
+ )
+
+
+#define MULADD_MULX_ADD_CARRY(c0, c1)\
+ __asm__ volatile(\
+ "mov $0, %%r10\n\t"\
+ "movq %1, %%r8\n\t"\
+ "adox %%r10, %0\n\t"\
+ "adcx %%r10, %1\n\t"\
+ :"+r"(c0),"+r"(c1)::"%r8","%r9","%r10","%rdx") ;
+
+#define MULADD_SET_A(a0)\
+ __asm__ volatile("add $0, %%r8\n\t" \
+ "movq %0,%%rdx\n\t" \
+ ::"r"(a0):"%r8","%r9","%r10","%rdx") ;
+
+#define MULADD_BODY(a,b,c)\
+ { word64 rdx = a->dp[ix] ; \
+ cp = &(c->dp[iz]) ; \
+ c0 = cp[0] ; c1 = cp[1]; \
+ MULADD_SET_A(rdx) ; \
+ MULADD_MULX(b0, c0, c1, rdx) ;\
+ cp[0]=c0; c0=cp[2]; \
+ MULADD_MULX(b1, c1, c0, rdx) ;\
+ cp[1]=c1; c1=cp[3]; \
+ MULADD_MULX(b2, c0, c1, rdx) ;\
+ cp[2]=c0; c0=cp[4]; \
+ MULADD_MULX(b3, c1, c0, rdx) ;\
+ cp[3]=c1; c1=cp[5]; \
+ MULADD_MULX_ADD_CARRY(c0, c1);\
+ cp[4]=c0; cp[5]=c1; \
+ }
+
+#define TFM_INTEL_MUL_COMBA(a, b, c)\
+ for(ix=0; ix<pa; ix++)c->dp[ix]=0 ; \
+ for(iy=0; (iy<b->used); iy+=4) { \
+ fp_digit *bp ; \
+ bp = &(b->dp[iy+0]) ; \
+ fp_digit b0 = bp[0] , b1= bp[1], \
+ b2= bp[2], b3= bp[3]; \
+ ix=0, iz=iy; \
+ while(ix<a->used) { \
+ fp_digit c0, c1; \
+ fp_digit *cp ; \
+ MULADD_BODY(a,b,c); \
+ ix++ ; iz++ ; \
+ } \
+};
+#endif
+
+#elif defined(TFM_SSE2)
+/* use SSE2 optimizations */
+
+/* anything you need at the start */
+#define COMBA_START
+
+/* clear the chaining variables */
+#define COMBA_CLEAR \
+ c0 = c1 = c2 = 0;
+
+/* forward the carry to the next digit */
+#define COMBA_FORWARD \
+ do { c0 = c1; c1 = c2; c2 = 0; } while (0);
+
+/* store the first sum */
+#define COMBA_STORE(x) \
+ x = c0;
+
+/* store the second sum [carry] */
+#define COMBA_STORE2(x) \
+ x = c1;
+
+/* anything you need at the end */
+#define COMBA_FINI \
+ __asm__("emms");
+
+/* this should multiply i and j */
+#define MULADD(i, j) \
+__asm__( \
+ "movd %6,%%mm0 \n\t" \
+ "movd %7,%%mm1 \n\t" \
+ "pmuludq %%mm1,%%mm0\n\t" \
+ "movd %%mm0,%%eax \n\t" \
+ "psrlq $32,%%mm0 \n\t" \
+ "addl %%eax,%0 \n\t" \
+ "movd %%mm0,%%eax \n\t" \
+ "adcl %%eax,%1 \n\t" \
+ "adcl $0,%2 \n\t" \
+ :"=r"(c0), "=r"(c1), "=r"(c2): "0"(c0), "1"(c1), "2"(c2), "m"(i), "m"(j) :"%eax","cc");
+
+#elif defined(TFM_ARM)
+/* ARM code */
+
+#define COMBA_START
+
+#define COMBA_CLEAR \
+ c0 = c1 = c2 = 0;
+
+#define COMBA_FORWARD \
+ do { c0 = c1; c1 = c2; c2 = 0; } while (0);
+
+#define COMBA_STORE(x) \
+ x = c0;
+
+#define COMBA_STORE2(x) \
+ x = c1;
+
+#define COMBA_FINI
+
+#define MULADD(i, j) \
+__asm__( \
+" UMULL r0,r1,%6,%7 \n\t" \
+" ADDS %0,%0,r0 \n\t" \
+" ADCS %1,%1,r1 \n\t" \
+" ADC %2,%2,#0 \n\t" \
+:"=r"(c0), "=r"(c1), "=r"(c2) : "0"(c0), "1"(c1), "2"(c2), "r"(i), "r"(j) : "r0", "r1", "cc");
+
+#elif defined(TFM_PPC32)
+/* For 32-bit PPC */
+
+#define COMBA_START
+
+#define COMBA_CLEAR \
+ c0 = c1 = c2 = 0;
+
+#define COMBA_FORWARD \
+ do { c0 = c1; c1 = c2; c2 = 0; } while (0);
+
+#define COMBA_STORE(x) \
+ x = c0;
+
+#define COMBA_STORE2(x) \
+ x = c1;
+
+#define COMBA_FINI
+
+/* untested: will mulhwu change the flags? Docs say no */
+#define MULADD(i, j) \
+__asm__( \
+ " mullw 16,%6,%7 \n\t" \
+ " addc %0,%0,16 \n\t" \
+ " mulhwu 16,%6,%7 \n\t" \
+ " adde %1,%1,16 \n\t" \
+ " addze %2,%2 \n\t" \
+:"=r"(c0), "=r"(c1), "=r"(c2):"0"(c0), "1"(c1), "2"(c2), "r"(i), "r"(j):"16");
+
+#elif defined(TFM_PPC64)
+/* For 64-bit PPC */
+
+#define COMBA_START
+
+#define COMBA_CLEAR \
+ c0 = c1 = c2 = 0;
+
+#define COMBA_FORWARD \
+ do { c0 = c1; c1 = c2; c2 = 0; } while (0);
+
+#define COMBA_STORE(x) \
+ x = c0;
+
+#define COMBA_STORE2(x) \
+ x = c1;
+
+#define COMBA_FINI
+
+/* untested: will mulhwu change the flags? Docs say no */
+#define MULADD(i, j) \
+____asm__( \
+ " mulld 16,%6,%7 \n\t" \
+ " addc %0,%0,16 \n\t" \
+ " mulhdu 16,%6,%7 \n\t" \
+ " adde %1,%1,16 \n\t" \
+ " addze %2,%2 \n\t" \
+:"=r"(c0), "=r"(c1), "=r"(c2):"0"(c0), "1"(c1), "2"(c2), "r"(i), "r"(j):"16");
+
+#elif defined(TFM_AVR32)
+
+/* ISO C code */
+
+#define COMBA_START
+
+#define COMBA_CLEAR \
+ c0 = c1 = c2 = 0;
+
+#define COMBA_FORWARD \
+ do { c0 = c1; c1 = c2; c2 = 0; } while (0);
+
+#define COMBA_STORE(x) \
+ x = c0;
+
+#define COMBA_STORE2(x) \
+ x = c1;
+
+#define COMBA_FINI
+
+#define MULADD(i, j) \
+____asm__( \
+ " mulu.d r2,%6,%7 \n\t"\
+ " add %0,r2 \n\t"\
+ " adc %1,%1,r3 \n\t"\
+ " acr %2 \n\t"\
+:"=r"(c0), "=r"(c1), "=r"(c2):"0"(c0), "1"(c1), "2"(c2), "r"(i), "r"(j):"r2","r3");
+
+#else
+/* ISO C code */
+
+#define COMBA_START
+
+#define COMBA_CLEAR \
+ c0 = c1 = c2 = 0;
+
+#define COMBA_FORWARD \
+ do { c0 = c1; c1 = c2; c2 = 0; } while (0);
+
+#define COMBA_STORE(x) \
+ x = c0;
+
+#define COMBA_STORE2(x) \
+ x = c1;
+
+#define COMBA_FINI
+
+#define MULADD(i, j) \
+ do { fp_word t; \
+ t = (fp_word)c0 + ((fp_word)i) * ((fp_word)j); c0 = (fp_digit)t; \
+ t = (fp_word)c1 + (t >> DIGIT_BIT); \
+ c1 = (fp_digit)t; c2 += (fp_digit)(t >> DIGIT_BIT); \
+ } while (0);
+
+#endif
+
+
+#ifdef TFM_SMALL_SET
+ #include "fp_mul_comba_small_set.i"
+#endif
+
+#if defined(TFM_MUL3) && FP_SIZE >= 6
+ #include "fp_mul_comba_3.i"
+#endif
+#if defined(TFM_MUL4) && FP_SIZE >= 8
+ #include "fp_mul_comba_4.i"
+#endif
+#if defined(TFM_MUL6) && FP_SIZE >= 12
+ #include "fp_mul_comba_6.i"
+#endif
+#if defined(TFM_MUL7) && FP_SIZE >= 14
+ #include "fp_mul_comba_7.i"
+#endif
+#if defined(TFM_MUL8) && FP_SIZE >= 16
+ #include "fp_mul_comba_8.i"
+#endif
+#if defined(TFM_MUL9) && FP_SIZE >= 18
+ #include "fp_mul_comba_9.i"
+#endif
+#if defined(TFM_MUL12) && FP_SIZE >= 24
+ #include "fp_mul_comba_12.i"
+#endif
+#if defined(TFM_MUL17) && FP_SIZE >= 34
+ #include "fp_mul_comba_17.i"
+#endif
+#if defined(TFM_MUL20) && FP_SIZE >= 40
+ #include "fp_mul_comba_20.i"
+#endif
+#if defined(TFM_MUL24) && FP_SIZE >= 48
+ #include "fp_mul_comba_24.i"
+#endif
+#if defined(TFM_MUL28) && FP_SIZE >= 56
+ #include "fp_mul_comba_28.i"
+#endif
+#if defined(TFM_MUL32) && FP_SIZE >= 64
+ #include "fp_mul_comba_32.i"
+#endif
+#if defined(TFM_MUL48) && FP_SIZE >= 96
+ #include "fp_mul_comba_48.i"
+#endif
+#if defined(TFM_MUL64) && FP_SIZE >= 128
+ #include "fp_mul_comba_64.i"
+#endif
+
+/* end fp_mul_comba.c asm */
+
+