mirror of https://github.com/YosysHQ/abc.git
123 lines
3.3 KiB
C
123 lines
3.3 KiB
C
/*
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* Revision Control Information
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*
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* $Source$
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* $Author$
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* $Revision$
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* $Date$
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*
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*/
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#include "espresso.h"
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ABC_NAMESPACE_IMPL_START
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static pcube Gcube;
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static pset Gminterm;
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pset minterms(T)
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pcover T;
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{
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int size, var;
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register pcube last;
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size = 1;
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for(var = 0; var < cube.num_vars; var++)
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size *= cube.part_size[var];
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Gminterm = set_new(size);
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foreach_set(T, last, Gcube)
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explode(cube.num_vars-1, 0);
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return Gminterm;
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}
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void explode(var, z)
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int var, z;
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{
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int i, last = cube.last_part[var];
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for(i=cube.first_part[var], z *= cube.part_size[var]; i<=last; i++, z++)
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if (is_in_set(Gcube, i))
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{
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if (var == 0)
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set_insert(Gminterm, z);
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else
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explode(var-1, z);
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}
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}
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static int mapindex[16][16] = {
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{ 0, 1, 3, 2, 16, 17, 19, 18, 80, 81, 83, 82, 64, 65, 67, 66},
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{ 4, 5, 7, 6, 20, 21, 23, 22, 84, 85, 87, 86, 68, 69, 71, 70},
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{ 12, 13, 15, 14, 28, 29, 31, 30, 92, 93, 95, 94, 76, 77, 79, 78},
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{ 8, 9, 11, 10, 24, 25, 27, 26, 88, 89, 91, 90, 72, 73, 75, 74},
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{ 32, 33, 35, 34, 48, 49, 51, 50, 112,113,115,114, 96, 97, 99, 98},
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{ 36, 37, 39, 38, 52, 53, 55, 54, 116,117,119,118, 100,101,103,102},
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{ 44, 45, 47, 46, 60, 61, 63, 62, 124,125,127,126, 108,109,111,110},
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{ 40, 41, 43, 42, 56, 57, 59, 58, 120,121,123,122, 104,105,107,106},
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{160,161,163,162, 176,177,179,178, 240,241,243,242, 224,225,227,226},
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{164,165,167,166, 180,181,183,182, 244,245,247,246, 228,229,231,230},
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{172,173,175,174, 188,189,191,190, 252,253,255,254, 236,237,239,238},
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{168,169,171,170, 184,185,187,186, 248,249,251,250, 232,233,235,234},
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{128,129,131,130, 144,145,147,146, 208,209,211,210, 192,193,195,194},
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{132,133,135,134, 148,149,151,150, 212,213,215,214, 196,197,199,198},
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{140,141,143,142, 156,157,159,158, 220,221,223,222, 204,205,207,206},
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{136,137,139,138, 152,153,155,154, 216,217,219,218, 200,201,203,202}
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};
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#define POWER2(n) (1 << n)
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void map(T)
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pcover T;
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{
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int j, k, l, other_input_offset, output_offset, outnum, ind;
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int largest_input_ind, numout;
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char c;
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pset m;
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bool some_output;
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m = minterms(T);
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largest_input_ind = POWER2(cube.num_binary_vars);
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numout = cube.part_size[cube.num_vars-1];
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for(outnum = 0; outnum < numout; outnum++) {
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output_offset = outnum * largest_input_ind;
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printf("\n\nOutput space # %d\n", outnum);
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for(l = 0; l <= MAX(cube.num_binary_vars - 8, 0); l++) {
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other_input_offset = l * 256;
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for(k = 0; k < 16; k++) {
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some_output = FALSE;
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for(j = 0; j < 16; j++) {
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ind = mapindex[k][j] + other_input_offset;
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if (ind < largest_input_ind) {
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c = is_in_set(m, ind+output_offset) ? '1' : '.';
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putchar(c);
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some_output = TRUE;
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}
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if ((j+1)%4 == 0)
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putchar(' ');
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if ((j+1)%8 == 0)
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printf(" ");
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}
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if (some_output)
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putchar('\n');
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if ((k+1)%4 == 0) {
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if (k != 15 && mapindex[k+1][0] >= largest_input_ind)
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break;
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putchar('\n');
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}
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if ((k+1)%8 == 0)
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putchar('\n');
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}
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}
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}
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set_free(m);
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}
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ABC_NAMESPACE_IMPL_END
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