ecmult_gen: Tidy precomputed file and save space
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5eba83f17c
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@ -4,6 +4,9 @@
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* file COPYING or https://www.opensource.org/licenses/mit-license.php.*
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* file COPYING or https://www.opensource.org/licenses/mit-license.php.*
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***********************************************************************/
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***********************************************************************/
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#include <inttypes.h>
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#include <stdio.h>
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/* In principle we could use ASM, but this yields only a minor speedup in
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/* In principle we could use ASM, but this yields only a minor speedup in
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build time and it's very complicated. In particular when cross-compiling, we'd
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build time and it's very complicated. In particular when cross-compiling, we'd
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need to build the ASM for the build and the host machine. */
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need to build the ASM for the build and the host machine. */
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@ -31,12 +34,16 @@ int main(int argc, char **argv) {
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return -1;
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return -1;
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}
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}
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fprintf(fp, "/* This file was automatically generated by gen_ecmult_gen_static_prec_table. */\n");
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fprintf(fp, "/* See ecmult_gen_impl.h for details about the contents of this file. */\n");
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fprintf(fp, "#ifndef SECP256K1_ECMULT_GEN_STATIC_PREC_TABLE_H\n");
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fprintf(fp, "#ifndef SECP256K1_ECMULT_GEN_STATIC_PREC_TABLE_H\n");
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fprintf(fp, "#define SECP256K1_ECMULT_GEN_STATIC_PREC_TABLE_H\n");
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fprintf(fp, "#define SECP256K1_ECMULT_GEN_STATIC_PREC_TABLE_H\n");
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fprintf(fp, "#include \"src/group.h\"\n");
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fprintf(fp, "#include \"group.h\"\n");
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fprintf(fp, "#define SC SECP256K1_GE_STORAGE_CONST\n");
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fprintf(fp, "#define S(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) "
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"SECP256K1_GE_STORAGE_CONST(0x##a##u,0x##b##u,0x##c##u,0x##d##u,0x##e##u,0x##f##u,0x##g##u,"
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"0x##h##u,0x##i##u,0x##j##u,0x##k##u,0x##l##u,0x##m##u,0x##n##u,0x##o##u,0x##p##u)\n");
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fprintf(fp, "#ifdef EXHAUSTIVE_TEST_ORDER\n");
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fprintf(fp, "#ifdef EXHAUSTIVE_TEST_ORDER\n");
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fprintf(fp, "static secp256k1_ge_storage secp256k1_ecmult_gen_prec_table[ECMULT_GEN_PREC_N(ECMULT_GEN_PREC_BITS)][ECMULT_GEN_PREC_G(ECMULT_GEN_PREC_BITS)];\n");
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fprintf(fp, "static secp256k1_ge_storage secp256k1_ecmult_gen_prec_table[ECMULT_GEN_PREC_N(ECMULT_GEN_PREC_BITS)][ECMULT_GEN_PREC_G(ECMULT_GEN_PREC_BITS)];\n");
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@ -53,14 +60,14 @@ int main(int argc, char **argv) {
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fprintf(fp, "#if ECMULT_GEN_PREC_BITS == %d\n", bits);
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fprintf(fp, "#if ECMULT_GEN_PREC_BITS == %d\n", bits);
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for(outer = 0; outer != n; outer++) {
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for(outer = 0; outer != n; outer++) {
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fprintf(fp,"{\n");
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fprintf(fp,"{");
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for(inner = 0; inner != g; inner++) {
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for(inner = 0; inner != g; inner++) {
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fprintf(fp," SC(%uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu)", SECP256K1_GE_STORAGE_CONST_GET(table[outer * g + inner]));
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fprintf(fp, "S(%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32
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",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32",%"PRIx32")",
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SECP256K1_GE_STORAGE_CONST_GET(table[outer * g + inner]));
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if (inner != g - 1) {
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if (inner != g - 1) {
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fprintf(fp,",\n");
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fprintf(fp,",\n");
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} else {
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}
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fprintf(fp,"\n");
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}
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}
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}
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if (outer != n - 1) {
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if (outer != n - 1) {
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fprintf(fp,"},\n");
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fprintf(fp,"},\n");
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