annotate tomsfastmath/src/mont/fp_montgomery_reduce.c @ 643:a362b62d38b2 dropbear-tfm

Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a with Makefile.in renamed
author Matt Johnston <matt@ucc.asn.au>
date Wed, 23 Nov 2011 18:10:20 +0700
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a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
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1 /* TomsFastMath, a fast ISO C bignum library.
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
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2 *
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3 * This project is meant to fill in where LibTomMath
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
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4 * falls short. That is speed ;-)
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5 *
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6 * This project is public domain and free for all purposes.
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
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7 *
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8 * Tom St Denis, [email protected]
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9 */
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10 #include <tfm.h>
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11
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12 /******************************************************************/
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13 #if defined(TFM_X86) && !defined(TFM_SSE2)
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14 /* x86-32 code */
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15
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16 #define MONT_START
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17 #define MONT_FINI
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18 #define LOOP_END
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19 #define LOOP_START \
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20 mu = c[x] * mp
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21
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22 #define INNERMUL \
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23 asm( \
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24 "movl %5,%%eax \n\t" \
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25 "mull %4 \n\t" \
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26 "addl %1,%%eax \n\t" \
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27 "adcl $0,%%edx \n\t" \
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28 "addl %%eax,%0 \n\t" \
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29 "adcl $0,%%edx \n\t" \
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30 "movl %%edx,%1 \n\t" \
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31 :"=g"(_c[LO]), "=r"(cy) \
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32 :"0"(_c[LO]), "1"(cy), "g"(mu), "g"(*tmpm++) \
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33 : "%eax", "%edx", "%cc")
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34
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35 #define PROPCARRY \
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36 asm( \
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37 "addl %1,%0 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
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38 "setb %%al \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
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39 "movzbl %%al,%1 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
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40 :"=g"(_c[LO]), "=r"(cy) \
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41 :"0"(_c[LO]), "1"(cy) \
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42 : "%eax", "%cc")
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43
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44 /******************************************************************/
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45 #elif defined(TFM_X86_64)
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46 /* x86-64 code */
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47
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48 #define MONT_START
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49 #define MONT_FINI
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50 #define LOOP_END
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51 #define LOOP_START \
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52 mu = c[x] * mp
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53
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54 #define INNERMUL \
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55 asm( \
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56 "movq %5,%%rax \n\t" \
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57 "mulq %4 \n\t" \
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58 "addq %1,%%rax \n\t" \
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59 "adcq $0,%%rdx \n\t" \
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60 "addq %%rax,%0 \n\t" \
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61 "adcq $0,%%rdx \n\t" \
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62 "movq %%rdx,%1 \n\t" \
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63 :"=g"(_c[LO]), "=r"(cy) \
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64 :"0"(_c[LO]), "1"(cy), "r"(mu), "r"(*tmpm++) \
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65 : "%rax", "%rdx", "%cc")
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66
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67 #define INNERMUL8 \
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68 asm( \
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69 "movq 0(%5),%%rax \n\t" \
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70 "movq 0(%2),%%r10 \n\t" \
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71 "movq 0x8(%5),%%r11 \n\t" \
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72 "mulq %4 \n\t" \
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73 "addq %%r10,%%rax \n\t" \
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74 "adcq $0,%%rdx \n\t" \
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75 "movq 0x8(%2),%%r10 \n\t" \
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76 "addq %3,%%rax \n\t" \
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77 "adcq $0,%%rdx \n\t" \
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78 "movq %%rax,0(%0) \n\t" \
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79 "movq %%rdx,%1 \n\t" \
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80 \
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81 "movq %%r11,%%rax \n\t" \
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82 "movq 0x10(%5),%%r11 \n\t" \
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83 "mulq %4 \n\t" \
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84 "addq %%r10,%%rax \n\t" \
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85 "adcq $0,%%rdx \n\t" \
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86 "movq 0x10(%2),%%r10 \n\t" \
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87 "addq %3,%%rax \n\t" \
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88 "adcq $0,%%rdx \n\t" \
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89 "movq %%rax,0x8(%0) \n\t" \
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90 "movq %%rdx,%1 \n\t" \
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91 \
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92 "movq %%r11,%%rax \n\t" \
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Matt Johnston <matt@ucc.asn.au>
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93 "movq 0x18(%5),%%r11 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
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94 "mulq %4 \n\t" \
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95 "addq %%r10,%%rax \n\t" \
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Matt Johnston <matt@ucc.asn.au>
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96 "adcq $0,%%rdx \n\t" \
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Matt Johnston <matt@ucc.asn.au>
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97 "movq 0x18(%2),%%r10 \n\t" \
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98 "addq %3,%%rax \n\t" \
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99 "adcq $0,%%rdx \n\t" \
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100 "movq %%rax,0x10(%0) \n\t" \
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Matt Johnston <matt@ucc.asn.au>
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101 "movq %%rdx,%1 \n\t" \
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102 \
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103 "movq %%r11,%%rax \n\t" \
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104 "movq 0x20(%5),%%r11 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
105 "mulq %4 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
106 "addq %%r10,%%rax \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
107 "adcq $0,%%rdx \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
108 "movq 0x20(%2),%%r10 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
109 "addq %3,%%rax \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
110 "adcq $0,%%rdx \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
111 "movq %%rax,0x18(%0) \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
112 "movq %%rdx,%1 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
113 \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
114 "movq %%r11,%%rax \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
115 "movq 0x28(%5),%%r11 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
116 "mulq %4 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
117 "addq %%r10,%%rax \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
118 "adcq $0,%%rdx \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
119 "movq 0x28(%2),%%r10 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
120 "addq %3,%%rax \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
121 "adcq $0,%%rdx \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
122 "movq %%rax,0x20(%0) \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
123 "movq %%rdx,%1 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
124 \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
125 "movq %%r11,%%rax \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
126 "movq 0x30(%5),%%r11 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
127 "mulq %4 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
128 "addq %%r10,%%rax \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
129 "adcq $0,%%rdx \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
130 "movq 0x30(%2),%%r10 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
131 "addq %3,%%rax \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
132 "adcq $0,%%rdx \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
133 "movq %%rax,0x28(%0) \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
134 "movq %%rdx,%1 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
135 \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
136 "movq %%r11,%%rax \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
137 "movq 0x38(%5),%%r11 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
138 "mulq %4 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
139 "addq %%r10,%%rax \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
140 "adcq $0,%%rdx \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
141 "movq 0x38(%2),%%r10 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
142 "addq %3,%%rax \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
143 "adcq $0,%%rdx \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
144 "movq %%rax,0x30(%0) \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
145 "movq %%rdx,%1 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
146 \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
147 "movq %%r11,%%rax \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
148 "mulq %4 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
149 "addq %%r10,%%rax \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
150 "adcq $0,%%rdx \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
151 "addq %3,%%rax \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
152 "adcq $0,%%rdx \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
153 "movq %%rax,0x38(%0) \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
154 "movq %%rdx,%1 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
155 \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
156 :"=r"(_c), "=r"(cy) \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
157 : "0"(_c), "1"(cy), "g"(mu), "r"(tmpm)\
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
158 : "%rax", "%rdx", "%r10", "%r11", "%cc")
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
159
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
160
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
161 #define PROPCARRY \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
162 asm( \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
163 "addq %1,%0 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
164 "setb %%al \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
165 "movzbq %%al,%1 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
166 :"=g"(_c[LO]), "=r"(cy) \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
167 :"0"(_c[LO]), "1"(cy) \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
168 : "%rax", "%cc")
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
169
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
170 /******************************************************************/
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
171 #elif defined(TFM_SSE2)
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
172 /* SSE2 code (assumes 32-bit fp_digits) */
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
173 /* XMM register assignments:
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
174 * xmm0 *tmpm++, then Mu * (*tmpm++)
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
175 * xmm1 c[x], then Mu
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
176 * xmm2 mp
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
177 * xmm3 cy
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
178 * xmm4 _c[LO]
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
179 */
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
180
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
181 #define MONT_START \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
182 asm("movd %0,%%mm2"::"g"(mp))
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
183
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
184 #define MONT_FINI \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
185 asm("emms")
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
186
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
187 #define LOOP_START \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
188 asm( \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
189 "movd %0,%%mm1 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
190 "pxor %%mm3,%%mm3 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
191 "pmuludq %%mm2,%%mm1 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
192 :: "g"(c[x]))
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
193
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
194 /* pmuludq on mmx registers does a 32x32->64 multiply. */
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
195 #define INNERMUL \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
196 asm( \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
197 "movd %1,%%mm4 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
198 "movd %2,%%mm0 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
199 "paddq %%mm4,%%mm3 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
200 "pmuludq %%mm1,%%mm0 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
201 "paddq %%mm0,%%mm3 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
202 "movd %%mm3,%0 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
203 "psrlq $32, %%mm3 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
204 :"=g"(_c[LO]) : "0"(_c[LO]), "g"(*tmpm++) );
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
205
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
206 #define INNERMUL8 \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
207 asm( \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
208 "movd 0(%1),%%mm4 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
209 "movd 0(%2),%%mm0 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
210 "paddq %%mm4,%%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
211 "pmuludq %%mm1,%%mm0 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
212 "movd 4(%2),%%mm5 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
213 "paddq %%mm0,%%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
214 "movd 4(%1),%%mm6 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
215 "movd %%mm3,0(%0) \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
216 "psrlq $32, %%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
217 \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
218 "paddq %%mm6,%%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
219 "pmuludq %%mm1,%%mm5 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
220 "movd 8(%2),%%mm6 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
221 "paddq %%mm5,%%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
222 "movd 8(%1),%%mm7 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
223 "movd %%mm3,4(%0) \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
224 "psrlq $32, %%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
225 \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
226 "paddq %%mm7,%%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
227 "pmuludq %%mm1,%%mm6 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
228 "movd 12(%2),%%mm7 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
229 "paddq %%mm6,%%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
230 "movd 12(%1),%%mm5 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
231 "movd %%mm3,8(%0) \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
232 "psrlq $32, %%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
233 \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
234 "paddq %%mm5,%%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
235 "pmuludq %%mm1,%%mm7 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
236 "movd 16(%2),%%mm5 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
237 "paddq %%mm7,%%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
238 "movd 16(%1),%%mm6 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
239 "movd %%mm3,12(%0) \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
240 "psrlq $32, %%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
241 \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
242 "paddq %%mm6,%%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
243 "pmuludq %%mm1,%%mm5 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
244 "movd 20(%2),%%mm6 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
245 "paddq %%mm5,%%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
246 "movd 20(%1),%%mm7 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
247 "movd %%mm3,16(%0) \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
248 "psrlq $32, %%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
249 \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
250 "paddq %%mm7,%%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
251 "pmuludq %%mm1,%%mm6 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
252 "movd 24(%2),%%mm7 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
253 "paddq %%mm6,%%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
254 "movd 24(%1),%%mm5 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
255 "movd %%mm3,20(%0) \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
256 "psrlq $32, %%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
257 \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
258 "paddq %%mm5,%%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
259 "pmuludq %%mm1,%%mm7 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
260 "movd 28(%2),%%mm5 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
261 "paddq %%mm7,%%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
262 "movd 28(%1),%%mm6 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
263 "movd %%mm3,24(%0) \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
264 "psrlq $32, %%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
265 \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
266 "paddq %%mm6,%%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
267 "pmuludq %%mm1,%%mm5 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
268 "paddq %%mm5,%%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
269 "movd %%mm3,28(%0) \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
270 "psrlq $32, %%mm3 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
271 :"=r"(_c) : "0"(_c), "g"(tmpm) );
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
272
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
273 #define LOOP_END \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
274 asm( "movd %%mm3,%0 \n" :"=r"(cy))
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
275
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
276 #define PROPCARRY \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
277 asm( \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
278 "addl %1,%0 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
279 "setb %%al \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
280 "movzbl %%al,%1 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
281 :"=g"(_c[LO]), "=r"(cy) \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
282 :"0"(_c[LO]), "1"(cy) \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
283 : "%eax", "%cc")
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
284
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
285 /******************************************************************/
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
286 #elif defined(TFM_ARM)
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
287 /* ARMv4 code */
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
288
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
289 #define MONT_START
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
290 #define MONT_FINI
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
291 #define LOOP_END
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
292 #define LOOP_START \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
293 mu = c[x] * mp
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
294
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
295 #define INNERMUL \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
296 asm( \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
297 " LDR r0,%1 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
298 " ADDS r0,r0,%0 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
299 " MOVCS %0,#1 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
300 " MOVCC %0,#0 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
301 " UMLAL r0,%0,%3,%4 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
302 " STR r0,%1 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
303 :"=r"(cy),"=m"(_c[0]):"0"(cy),"r"(mu),"r"(*tmpm++),"1"(_c[0]):"r0","%cc");
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
304
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
305 #define PROPCARRY \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
306 asm( \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
307 " LDR r0,%1 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
308 " ADDS r0,r0,%0 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
309 " STR r0,%1 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
310 " MOVCS %0,#1 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
311 " MOVCC %0,#0 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
312 :"=r"(cy),"=m"(_c[0]):"0"(cy),"1"(_c[0]):"r0","%cc");
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313
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314 /******************************************************************/
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diff changeset
315 #elif defined(TFM_PPC32)
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316
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diff changeset
317 /* PPC32 */
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diff changeset
318 #define MONT_START
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319 #define MONT_FINI
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320 #define LOOP_END
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diff changeset
321 #define LOOP_START \
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322 mu = c[x] * mp
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323
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324 #define INNERMUL \
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diff changeset
325 asm( \
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326 " mullw 16,%3,%4 \n\t" \
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diff changeset
327 " mulhwu 17,%3,%4 \n\t" \
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diff changeset
328 " addc 16,16,%0 \n\t" \
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diff changeset
329 " addze 17,17 \n\t" \
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diff changeset
330 " lwz 18,%1 \n\t" \
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diff changeset
331 " addc 16,16,18 \n\t" \
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diff changeset
332 " addze %0,17 \n\t" \
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parents:
diff changeset
333 " stw 16,%1 \n\t" \
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diff changeset
334 :"=r"(cy),"=g"(_c[0]):"0"(cy),"r"(mu),"r"(tmpm[0]),"1"(_c[0]):"16", "17", "18","%cc"); ++tmpm;
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335
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336 #define PROPCARRY \
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diff changeset
337 asm( \
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diff changeset
338 " lwz 16,%1 \n\t" \
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diff changeset
339 " addc 16,16,%0 \n\t" \
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parents:
diff changeset
340 " stw 16,%1 \n\t" \
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parents:
diff changeset
341 " xor %0,%0,%0 \n\t" \
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diff changeset
342 " addze %0,%0 \n\t" \
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343 :"=r"(cy),"=g"(_c[0]):"0"(cy),"1"(_c[0]):"16","%cc");
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344
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345 /******************************************************************/
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346 #elif defined(TFM_PPC64)
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347
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348 /* PPC64 */
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349 #define MONT_START
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350 #define MONT_FINI
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351 #define LOOP_END
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352 #define LOOP_START \
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353 mu = c[x] * mp
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354
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355 #define INNERMUL \
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diff changeset
356 asm( \
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357 " mulld r16,%3,%4 \n\t" \
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diff changeset
358 " mulhdu r17,%3,%4 \n\t" \
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diff changeset
359 " addc r16,16,%0 \n\t" \
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parents:
diff changeset
360 " addze r17,r17 \n\t" \
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diff changeset
361 " ldx r18,0,%1 \n\t" \
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diff changeset
362 " addc r16,r16,r18 \n\t" \
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diff changeset
363 " addze %0,r17 \n\t" \
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diff changeset
364 " sdx r16,0,%1 \n\t" \
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diff changeset
365 :"=r"(cy),"=m"(_c[0]):"0"(cy),"r"(mu),"r"(tmpm[0]),"1"(_c[0]):"r16", "r17", "r18","%cc"); ++tmpm;
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diff changeset
366
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diff changeset
367 #define PROPCARRY \
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368 asm( \
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369 " ldx r16,0,%1 \n\t" \
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diff changeset
370 " addc r16,r16,%0 \n\t" \
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diff changeset
371 " sdx r16,0,%1 \n\t" \
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parents:
diff changeset
372 " xor %0,%0,%0 \n\t" \
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diff changeset
373 " addze %0,%0 \n\t" \
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374 :"=r"(cy),"=m"(_c[0]):"0"(cy),"1"(_c[0]):"r16","%cc");
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diff changeset
375
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diff changeset
376 /******************************************************************/
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diff changeset
377 #elif defined(TFM_AVR32)
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diff changeset
378
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diff changeset
379 /* AVR32 */
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diff changeset
380 #define MONT_START
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diff changeset
381 #define MONT_FINI
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diff changeset
382 #define LOOP_END
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parents:
diff changeset
383 #define LOOP_START \
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diff changeset
384 mu = c[x] * mp
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diff changeset
385
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parents:
diff changeset
386 #define INNERMUL \
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parents:
diff changeset
387 asm( \
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parents:
diff changeset
388 " ld.w r2,%1 \n\t" \
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parents:
diff changeset
389 " add r2,%0 \n\t" \
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parents:
diff changeset
390 " eor r3,r3 \n\t" \
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parents:
diff changeset
391 " acr r3 \n\t" \
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parents:
diff changeset
392 " macu.d r2,%3,%4 \n\t" \
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parents:
diff changeset
393 " st.w %1,r2 \n\t" \
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parents:
diff changeset
394 " mov %0,r3 \n\t" \
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parents:
diff changeset
395 :"=r"(cy),"=r"(_c):"0"(cy),"r"(mu),"r"(*tmpm++),"1"(_c):"r2","r3");
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parents:
diff changeset
396
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parents:
diff changeset
397 #define PROPCARRY \
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parents:
diff changeset
398 asm( \
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parents:
diff changeset
399 " ld.w r2,%1 \n\t" \
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parents:
diff changeset
400 " add r2,%0 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
401 " st.w %1,r2 \n\t" \
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parents:
diff changeset
402 " eor %0,%0 \n\t" \
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parents:
diff changeset
403 " acr %0 \n\t" \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
404 :"=r"(cy),"=r"(&_c[0]):"0"(cy),"1"(&_c[0]):"r2","%cc");
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
405
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parents:
diff changeset
406 /******************************************************************/
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parents:
diff changeset
407 #elif defined(TFM_MIPS)
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
408
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
409 /* MIPS */
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parents:
diff changeset
410 #define MONT_START
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parents:
diff changeset
411 #define MONT_FINI
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parents:
diff changeset
412 #define LOOP_END
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parents:
diff changeset
413 #define LOOP_START \
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parents:
diff changeset
414 mu = c[x] * mp
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
415
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
416 #define INNERMUL \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
417 asm( \
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
418 " multu %3,%4 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
419 " mflo $12 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
420 " mfhi $13 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
421 " addu $12,$12,%0 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
422 " sltu $10,$12,%0 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
423 " addu $13,$13,$10 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
424 " lw $10,%1 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
425 " addu $12,$12,$10 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
426 " sltu $10,$12,$10 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
427 " addu %0,$13,$10 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
428 " sw $12,%1 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
429 :"=r"(cy),"=m"(_c[0]):"0"(cy),"r"(mu),"r"(tmpm[0]),"1"(_c[0]):"$10","$12","$13"); ++tmpm;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
430
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
431 #define PROPCARRY \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
432 asm( \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
433 " lw $10,%1 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
434 " addu $10,$10,%0 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
435 " sw $10,%1 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
436 " sltu %0,$10,%0 \n\t" \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
437 :"=r"(cy),"=m"(_c[0]):"0"(cy),"1"(_c[0]):"$10");
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
438
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
439 /******************************************************************/
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
440 #else
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
441
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
442 /* ISO C code */
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
443 #define MONT_START
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
444 #define MONT_FINI
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
445 #define LOOP_END
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
446 #define LOOP_START \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
447 mu = c[x] * mp
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
448
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
449 #define INNERMUL \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
450 do { fp_word t; \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
451 _c[0] = t = ((fp_word)_c[0] + (fp_word)cy) + \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
452 (((fp_word)mu) * ((fp_word)*tmpm++)); \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
453 cy = (t >> DIGIT_BIT); \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
454 } while (0)
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
455
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
456 #define PROPCARRY \
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
457 do { fp_digit t = _c[0] += cy; cy = (t < cy); } while (0)
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
458
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
459 #endif
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
460 /******************************************************************/
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
461
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
462
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
463 #define LO 0
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
464
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
465 #ifdef TFM_SMALL_MONT_SET
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
466 #include "fp_mont_small.i"
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
467 #endif
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
468
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
469 /* computes x/R == x (mod N) via Montgomery Reduction */
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
470 void fp_montgomery_reduce(fp_int *a, fp_int *m, fp_digit mp)
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
471 {
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
472 fp_digit c[FP_SIZE], *_c, *tmpm, mu;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
473 int oldused, x, y, pa;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
474
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
475 /* bail if too large */
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
476 if (m->used > (FP_SIZE/2)) {
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
477 return;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
478 }
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
479
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
480 #ifdef TFM_SMALL_MONT_SET
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
481 if (m->used <= 16) {
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
482 fp_montgomery_reduce_small(a, m, mp);
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
483 return;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
484 }
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
485 #endif
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
486
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
487 #if defined(USE_MEMSET)
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
488 /* now zero the buff */
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
489 memset(c, 0, sizeof c);
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
490 #endif
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
491 pa = m->used;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
492
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
493 /* copy the input */
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
494 oldused = a->used;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
495 for (x = 0; x < oldused; x++) {
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
496 c[x] = a->dp[x];
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
497 }
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
498 #if !defined(USE_MEMSET)
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
499 for (; x < 2*pa+1; x++) {
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
500 c[x] = 0;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
501 }
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
502 #endif
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
503 MONT_START;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
504
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
505 for (x = 0; x < pa; x++) {
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
506 fp_digit cy = 0;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
507 /* get Mu for this round */
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
508 LOOP_START;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
509 _c = c + x;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
510 tmpm = m->dp;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
511 y = 0;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
512 #if (defined(TFM_SSE2) || defined(TFM_X86_64))
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
513 for (; y < (pa & ~7); y += 8) {
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
514 INNERMUL8;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
515 _c += 8;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
516 tmpm += 8;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
517 }
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
518 #endif
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
519
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
520 for (; y < pa; y++) {
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
521 INNERMUL;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
522 ++_c;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
523 }
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
524 LOOP_END;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
525 while (cy) {
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
526 PROPCARRY;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
527 ++_c;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
528 }
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
529 }
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
530
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
531 /* now copy out */
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
532 _c = c + pa;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
533 tmpm = a->dp;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
534 for (x = 0; x < pa+1; x++) {
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
535 *tmpm++ = *_c++;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
536 }
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
537
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
538 for (; x < oldused; x++) {
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
539 *tmpm++ = 0;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
540 }
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
541
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
542 MONT_FINI;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
543
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
544 a->used = pa+1;
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
545 fp_clamp(a);
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
546
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
547 /* if A >= m then A = A - m */
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
548 if (fp_cmp_mag (a, m) != FP_LT) {
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
549 s_fp_sub (a, m, a);
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
550 }
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
551 }
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
552
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
553
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
554 /* $Source$ */
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
555 /* $Revision$ */
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
556 /* $Date$ */