mirror of https://github.com/YosysHQ/yosys.git
274 lines
7.7 KiB
C++
274 lines
7.7 KiB
C++
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#define GENERATE_BINARY_OPS
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#define GENERATE_UNARY_OPS
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#define GENERATE_TERNARY_OPS
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#define GENERATE_CONCAT_OPS
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <string.h>
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#include <stdio.h>
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#include <string>
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const char *arg_types[][3] = {
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{ "{dir} [3:0] {name}", "{name}", "4" }, // 00
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{ "{dir} [4:0] {name}", "{name}", "5" }, // 01
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{ "{dir} [5:0] {name}", "{name}", "6" }, // 02
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{ "{dir} signed [3:0] {name}", "{name}", "4" }, // 03
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{ "{dir} signed [4:0] {name}", "{name}", "5" }, // 04
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{ "{dir} signed [5:0] {name}", "{name}", "6" } // 05
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};
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const char *small_arg_types[][3] = {
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{ "{dir} [0:0] {name}", "{name}", "1" }, // 00
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{ "{dir} [1:0] {name}", "{name}", "2" }, // 01
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{ "{dir} [2:0] {name}", "{name}", "3" }, // 02
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{ "{dir} signed [0:0] {name}", "{name}", "1" }, // 03
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{ "{dir} signed [1:0] {name}", "{name}", "2" }, // 04
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{ "{dir} signed [2:0] {name}", "{name}", "3" }, // 05
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};
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// See Table 5-1 (page 42) in IEEE Std 1364-2005
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// for a list of all Verilog oprators.
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const char *binary_ops[] = {
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"+", // 00
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"-", // 01
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"*", // 02
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// "/",
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// "%",
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// "**",
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">", // 03
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">=", // 04
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"<", // 05
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"<=", // 06
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"&&", // 07
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"||", // 08
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"==", // 09
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"!=", // 10
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"===", // 11
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"!==", // 12
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"&", // 13
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"|", // 14
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"^", // 15
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"^~", // 16
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"<<", // 17
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">>", // 18
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"<<<", // 19
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">>>", // 20
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};
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const char *unary_ops[] = {
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"+", // 00
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"-", // 01
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"!", // 02
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"~", // 03
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"&", // 04
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"~&", // 05
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"|", // 06
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"~|", // 07
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"^", // 08
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"~^", // 09
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};
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void strsubst(std::string &str, const std::string &match, const std::string &replace)
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{
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size_t pos;
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while ((pos = str.find(match)) != std::string::npos)
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str.replace(pos, match.size(), replace);
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}
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int main()
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{
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mkdir("rtl", 0777);
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#ifdef GENERATE_BINARY_OPS
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for (int ai = 0; ai < sizeof(arg_types)/sizeof(arg_types[0]); ai++)
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for (int bi = 0; bi < sizeof(arg_types)/sizeof(arg_types[0]); bi++)
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for (int yi = 0; yi < sizeof(arg_types)/sizeof(arg_types[0]); yi++)
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for (int oi = 0; oi < sizeof(binary_ops)/sizeof(binary_ops[0]); oi++)
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{
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std::string a_decl = arg_types[ai][0];
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strsubst(a_decl, "{dir}", "input");
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strsubst(a_decl, "{name}", "a");
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std::string b_decl = arg_types[bi][0];
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strsubst(b_decl, "{dir}", "input");
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strsubst(b_decl, "{name}", "b");
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std::string y_decl = arg_types[yi][0];
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strsubst(y_decl, "{dir}", "output");
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strsubst(y_decl, "{name}", "y");
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std::string a_ref = arg_types[ai][1];
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strsubst(a_ref, "{dir}", "input");
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strsubst(a_ref, "{name}", "a");
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std::string b_ref = arg_types[bi][1];
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strsubst(b_ref, "{dir}", "input");
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strsubst(b_ref, "{name}", "b");
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std::string y_ref = arg_types[yi][1];
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strsubst(y_ref, "{dir}", "output");
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strsubst(y_ref, "{name}", "y");
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char buffer[1024];
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snprintf(buffer, 1024, "rtl/binary_ops_%02d%02d%02d%02d.v", ai, bi, yi, oi);
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FILE *f = fopen(buffer, "w");
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fprintf(f, "module binary_ops_%02d%02d%02d%02d(a, b, y);\n", ai, bi, yi, oi);
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fprintf(f, "%s;\n", a_decl.c_str());
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fprintf(f, "%s;\n", b_decl.c_str());
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fprintf(f, "%s;\n", y_decl.c_str());
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fprintf(f, "assign %s = %s %s %s;\n", y_ref.c_str(),
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a_ref.c_str(), binary_ops[oi], b_ref.c_str());
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fprintf(f, "endmodule\n");
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fclose(f);
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}
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#endif
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#ifdef GENERATE_UNARY_OPS
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for (int ai = 0; ai < sizeof(arg_types)/sizeof(arg_types[0]); ai++)
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for (int yi = 0; yi < sizeof(arg_types)/sizeof(arg_types[0]); yi++)
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for (int oi = 0; oi < sizeof(unary_ops)/sizeof(unary_ops[0]); oi++)
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{
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std::string a_decl = arg_types[ai][0];
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strsubst(a_decl, "{dir}", "input");
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strsubst(a_decl, "{name}", "a");
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std::string y_decl = arg_types[yi][0];
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strsubst(y_decl, "{dir}", "output");
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strsubst(y_decl, "{name}", "y");
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std::string a_ref = arg_types[ai][1];
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strsubst(a_ref, "{dir}", "input");
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strsubst(a_ref, "{name}", "a");
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std::string y_ref = arg_types[yi][1];
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strsubst(y_ref, "{dir}", "output");
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strsubst(y_ref, "{name}", "y");
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char buffer[1024];
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snprintf(buffer, 1024, "rtl/unary_ops_%02d%02d%02d.v", ai, yi, oi);
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FILE *f = fopen(buffer, "w");
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fprintf(f, "module unary_ops_%02d%02d%02d(a, b, y);\n", ai, yi, oi);
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fprintf(f, "%s;\n", a_decl.c_str());
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fprintf(f, "input b;\n");
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fprintf(f, "%s;\n", y_decl.c_str());
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fprintf(f, "assign %s = %s %s;\n", y_ref.c_str(),
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unary_ops[oi], a_ref.c_str());
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fprintf(f, "endmodule\n");
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fclose(f);
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}
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#endif
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#ifdef GENERATE_TERNARY_OPS
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for (int ai = 0; ai < sizeof(small_arg_types)/sizeof(small_arg_types[0]); ai++)
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for (int bi = 0; bi < sizeof(arg_types)/sizeof(arg_types[0]); bi++)
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for (int ci = 0; ci < sizeof(arg_types)/sizeof(arg_types[0]); ci++)
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for (int yi = 0; yi < sizeof(arg_types)/sizeof(arg_types[0]); yi++)
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{
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if (!strcmp(small_arg_types[ai][2], "3"))
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continue;
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if (!strcmp(arg_types[bi][2], "6"))
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continue;
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if (!strcmp(arg_types[ci][2], "6"))
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continue;
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std::string a_decl = small_arg_types[ai][0];
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strsubst(a_decl, "{dir}", "input");
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strsubst(a_decl, "{name}", "a");
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std::string b1_decl = arg_types[bi][0];
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strsubst(b1_decl, "{dir}", "wire");
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strsubst(b1_decl, "{name}", "b1");
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std::string b2_decl = arg_types[ci][0];
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strsubst(b2_decl, "{dir}", "wire");
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strsubst(b2_decl, "{name}", "b2");
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std::string y_decl = arg_types[yi][0];
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strsubst(y_decl, "{dir}", "output");
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strsubst(y_decl, "{name}", "y");
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std::string a_ref = small_arg_types[ai][1];
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strsubst(a_ref, "{dir}", "input");
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strsubst(a_ref, "{name}", "a");
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std::string b1_ref = arg_types[bi][1];
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strsubst(b1_ref, "{dir}", "wire");
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strsubst(b1_ref, "{name}", "b1");
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std::string b2_ref = arg_types[ci][1];
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strsubst(b2_ref, "{dir}", "wire");
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strsubst(b2_ref, "{name}", "b2");
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std::string y_ref = arg_types[yi][1];
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strsubst(y_ref, "{dir}", "output");
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strsubst(y_ref, "{name}", "y");
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char buffer[1024];
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snprintf(buffer, 1024, "rtl/ternary_ops_%02d%02d%02d%02d.v", ai, bi, ci, yi);
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FILE *f = fopen(buffer, "w");
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fprintf(f, "module ternary_ops_%02d%02d%02d%02d(a, b, y);\n", ai, bi, ci, yi);
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fprintf(f, "%s;\n", a_decl.c_str());
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fprintf(f, "input [%s+%s-1:0] b;\n", arg_types[bi][2], arg_types[ci][2]);
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fprintf(f, "%s = b[%s+%s-1:%s];\n", b1_decl.c_str(), arg_types[bi][2], arg_types[ci][2], arg_types[ci][2]);
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fprintf(f, "%s = b[%s-1:0];\n", b2_decl.c_str(), arg_types[ci][2]);
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fprintf(f, "%s;\n", y_decl.c_str());
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fprintf(f, "assign %s = %s ? %s : %s;\n", y_ref.c_str(),
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a_ref.c_str(), b1_ref.c_str(), b2_ref.c_str());
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fprintf(f, "endmodule\n");
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fclose(f);
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}
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#endif
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#ifdef GENERATE_CONCAT_OPS
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for (int ai = 0; ai < sizeof(small_arg_types)/sizeof(small_arg_types[0]); ai++)
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for (int bi = 0; bi < sizeof(small_arg_types)/sizeof(small_arg_types[0]); bi++)
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for (int yi = 0; yi < sizeof(arg_types)/sizeof(arg_types[0]); yi++)
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{
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std::string a_decl = small_arg_types[ai][0];
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strsubst(a_decl, "{dir}", "input");
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strsubst(a_decl, "{name}", "a");
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std::string b_decl = small_arg_types[bi][0];
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strsubst(b_decl, "{dir}", "input");
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strsubst(b_decl, "{name}", "b");
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std::string y_decl = arg_types[yi][0];
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strsubst(y_decl, "{dir}", "output");
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strsubst(y_decl, "{name}", "y");
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std::string a_ref = small_arg_types[ai][1];
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strsubst(a_ref, "{dir}", "input");
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strsubst(a_ref, "{name}", "a");
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std::string b_ref = small_arg_types[bi][1];
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strsubst(b_ref, "{dir}", "input");
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strsubst(b_ref, "{name}", "b");
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std::string y_ref = arg_types[yi][1];
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strsubst(y_ref, "{dir}", "output");
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strsubst(y_ref, "{name}", "y");
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char buffer[1024];
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snprintf(buffer, 1024, "rtl/concat_ops_%02d%02d%02d.v", ai, bi, yi);
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FILE *f = fopen(buffer, "w");
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fprintf(f, "module concat_ops_%02d%02d%02d(a, b, y);\n", ai, bi, yi);
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fprintf(f, "%s;\n", a_decl.c_str());
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fprintf(f, "%s;\n", b_decl.c_str());
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fprintf(f, "%s;\n", y_decl.c_str());
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fprintf(f, "assign %s = {%s, %s};\n", y_ref.c_str(), a_ref.c_str(), b_ref.c_str());
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fprintf(f, "endmodule\n");
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fclose(f);
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}
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#endif
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return 0;
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}
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