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-rw-r--r--tests/xsthammer/generate.cc449
1 files changed, 0 insertions, 449 deletions
diff --git a/tests/xsthammer/generate.cc b/tests/xsthammer/generate.cc
deleted file mode 100644
index 6efd4c97..00000000
--- a/tests/xsthammer/generate.cc
+++ /dev/null
@@ -1,449 +0,0 @@
-
-#define GENERATE_BINARY_OPS
-#define GENERATE_UNARY_OPS
-#define GENERATE_TERNARY_OPS
-#define GENERATE_CONCAT_OPS
-#undef GENERATE_REPEAT_OPS // disabled because of XST bug
-#define GENERATE_EXPRESSIONS
-
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <string.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <string>
-
-const char *arg_types[][3] = {
- { "{dir} [3:0] {name}", "{name}", "4" }, // 00
- { "{dir} [4:0] {name}", "{name}", "5" }, // 01
- { "{dir} [5:0] {name}", "{name}", "6" }, // 02
- { "{dir} signed [3:0] {name}", "{name}", "4" }, // 03
- { "{dir} signed [4:0] {name}", "{name}", "5" }, // 04
- { "{dir} signed [5:0] {name}", "{name}", "6" } // 05
-};
-
-const char *small_arg_types[][3] = {
- { "{dir} [0:0] {name}", "{name}", "1" }, // 00
- { "{dir} [1:0] {name}", "{name}", "2" }, // 01
- { "{dir} [2:0] {name}", "{name}", "3" }, // 02
- { "{dir} signed [0:0] {name}", "{name}", "1" }, // 03
- { "{dir} signed [1:0] {name}", "{name}", "2" }, // 04
- { "{dir} signed [2:0] {name}", "{name}", "3" }, // 05
-};
-
-// See Table 5-1 (page 42) in IEEE Std 1364-2005
-// for a list of all Verilog oprators.
-
-const char *binary_ops[] = {
- "+", // 00
- "-", // 01
- "*", // 02
-// "/",
-// "%",
-// "**",
- ">", // 03
- ">=", // 04
- "<", // 05
- "<=", // 06
- "&&", // 07
- "||", // 08
- "==", // 09
- "!=", // 10
- "===", // 11
- "!==", // 12
- "&", // 13
- "|", // 14
- "^", // 15
- "^~", // 16
- "<<", // 17
- ">>", // 18
- "<<<", // 19
- ">>>", // 20
-};
-
-const char *unary_ops[] = {
- "+", // 00
- "-", // 01
- "!", // 02
- "~", // 03
- "&", // 04
- "~&", // 05
- "|", // 06
- "~|", // 07
- "^", // 08
- "~^", // 09
-};
-
-void strsubst(std::string &str, const std::string &match, const std::string &replace)
-{
- size_t pos;
- while ((pos = str.find(match)) != std::string::npos)
- str.replace(pos, match.size(), replace);
-}
-
-uint32_t xorshift32(uint32_t seed = 0) {
- static uint32_t x = 314159265;
- if (seed)
- x = seed;
- x ^= x << 13;
- x ^= x >> 17;
- x ^= x << 5;
- return x;
-}
-
-void print_expression(FILE *f, int budget, uint32_t mask = 0)
-{
- size_t num_binary_ops = sizeof(binary_ops)/sizeof(*binary_ops);
- size_t num_unary_ops = sizeof(unary_ops)/sizeof(*unary_ops);
- size_t num_arg_types = sizeof(arg_types)/sizeof(*arg_types);
- int i, j, k, mode;
-
- if (budget == 0) {
- fprintf(f, "%c%d", 'a' + char(xorshift32() % 2), int(xorshift32() % num_arg_types));
- return;
- }
-
- int num_modes = 4;
- while ((mask & ~((~0) << num_modes)) == 0)
- mask = xorshift32();
- do {
- mode = xorshift32() % num_modes;
- } while (((1 << mode) & mask) == 0);
- // fprintf(f, "/* %d */", mode);
-
- budget--;
- switch (mode)
- {
- case 0:
- fprintf(f, "(");
- print_expression(f, budget, mask);
- fprintf(f, ")");
- break;
- case 1:
- fprintf(f, "(");
- print_expression(f, budget/2, mask);
- #if 1
- // FIXME: relational operators disabled because there is an xst bug..
- do k = xorshift32() % num_binary_ops; while ((k >= 9 && k <= 12) || (k >= 3 && k <= 6));
- fprintf(f, "%s", binary_ops[k]);
- #else
- fprintf(f, "%s", binary_ops[xorshift32() % num_binary_ops]);
- #endif
- print_expression(f, budget/2, mask);
- fprintf(f, ")");
- break;
- case 2:
- fprintf(f, "(%s", unary_ops[xorshift32() % num_unary_ops]);
- print_expression(f, budget, mask);
- fprintf(f, ")");
- break;
- case 3:
- i = 1 + xorshift32() % 3;
- fprintf(f, "{");
- for (j = 0; j < i; j++) {
- if (j)
- fprintf(f, ",");
- print_expression(f, budget / i, mask);
- }
- fprintf(f, "}");
- break;
-#if 0
- // FIXME: disabled because there is an xst bug..
- case 4:
- i = xorshift32() % 4;
- fprintf(f, "{%d{", i);
- print_expression(f, budget, mask);
- fprintf(f, "}}");
- break;
-#endif
- }
-}
-
-int main()
-{
- mkdir("rtl", 0777);
-
-#ifdef GENERATE_BINARY_OPS
- for (int ai = 0; ai < sizeof(arg_types)/sizeof(arg_types[0]); ai++)
- for (int bi = 0; bi < sizeof(arg_types)/sizeof(arg_types[0]); bi++)
- for (int yi = 0; yi < sizeof(arg_types)/sizeof(arg_types[0]); yi++)
- for (int oi = 0; oi < sizeof(binary_ops)/sizeof(binary_ops[0]); oi++)
- {
- std::string a_decl = arg_types[ai][0];
- strsubst(a_decl, "{dir}", "input");
- strsubst(a_decl, "{name}", "a");
-
- std::string b_decl = arg_types[bi][0];
- strsubst(b_decl, "{dir}", "input");
- strsubst(b_decl, "{name}", "b");
-
- std::string y_decl = arg_types[yi][0];
- strsubst(y_decl, "{dir}", "output");
- strsubst(y_decl, "{name}", "y");
-
- std::string a_ref = arg_types[ai][1];
- strsubst(a_ref, "{dir}", "input");
- strsubst(a_ref, "{name}", "a");
-
- std::string b_ref = arg_types[bi][1];
- strsubst(b_ref, "{dir}", "input");
- strsubst(b_ref, "{name}", "b");
-
- std::string y_ref = arg_types[yi][1];
- strsubst(y_ref, "{dir}", "output");
- strsubst(y_ref, "{name}", "y");
-
- char buffer[1024];
- snprintf(buffer, 1024, "rtl/binary_ops_%02d%02d%02d%02d.v", ai, bi, yi, oi);
-
- FILE *f = fopen(buffer, "w");
- fprintf(f, "module binary_ops_%02d%02d%02d%02d(a, b, y);\n", ai, bi, yi, oi);
- fprintf(f, "%s;\n", a_decl.c_str());
- fprintf(f, "%s;\n", b_decl.c_str());
- fprintf(f, "%s;\n", y_decl.c_str());
- fprintf(f, "assign %s = %s %s %s;\n", y_ref.c_str(),
- a_ref.c_str(), binary_ops[oi], b_ref.c_str());
- fprintf(f, "endmodule\n");
- fclose(f);
- }
-#endif
-
-#ifdef GENERATE_UNARY_OPS
- for (int ai = 0; ai < sizeof(arg_types)/sizeof(arg_types[0]); ai++)
- for (int yi = 0; yi < sizeof(arg_types)/sizeof(arg_types[0]); yi++)
- for (int oi = 0; oi < sizeof(unary_ops)/sizeof(unary_ops[0]); oi++)
- {
- std::string a_decl = arg_types[ai][0];
- strsubst(a_decl, "{dir}", "input");
- strsubst(a_decl, "{name}", "a");
-
- std::string y_decl = arg_types[yi][0];
- strsubst(y_decl, "{dir}", "output");
- strsubst(y_decl, "{name}", "y");
-
- std::string a_ref = arg_types[ai][1];
- strsubst(a_ref, "{dir}", "input");
- strsubst(a_ref, "{name}", "a");
-
- std::string y_ref = arg_types[yi][1];
- strsubst(y_ref, "{dir}", "output");
- strsubst(y_ref, "{name}", "y");
-
- char buffer[1024];
- snprintf(buffer, 1024, "rtl/unary_ops_%02d%02d%02d.v", ai, yi, oi);
-
- FILE *f = fopen(buffer, "w");
- fprintf(f, "module unary_ops_%02d%02d%02d(a, b, y);\n", ai, yi, oi);
- fprintf(f, "%s;\n", a_decl.c_str());
- fprintf(f, "input b;\n");
- fprintf(f, "%s;\n", y_decl.c_str());
- fprintf(f, "assign %s = %s %s;\n", y_ref.c_str(),
- unary_ops[oi], a_ref.c_str());
- fprintf(f, "endmodule\n");
- fclose(f);
- }
-#endif
-
-#ifdef GENERATE_TERNARY_OPS
- for (int ai = 0; ai < sizeof(small_arg_types)/sizeof(small_arg_types[0]); ai++)
- for (int bi = 0; bi < sizeof(arg_types)/sizeof(arg_types[0]); bi++)
- for (int ci = 0; ci < sizeof(arg_types)/sizeof(arg_types[0]); ci++)
- for (int yi = 0; yi < sizeof(arg_types)/sizeof(arg_types[0]); yi++)
- {
- if (!strcmp(small_arg_types[ai][2], "3"))
- continue;
- if (!strcmp(arg_types[bi][2], "6"))
- continue;
- if (!strcmp(arg_types[ci][2], "6"))
- continue;
-
- std::string a_decl = small_arg_types[ai][0];
- strsubst(a_decl, "{dir}", "input");
- strsubst(a_decl, "{name}", "a");
-
- std::string b1_decl = arg_types[bi][0];
- strsubst(b1_decl, "{dir}", "wire");
- strsubst(b1_decl, "{name}", "b1");
-
- std::string b2_decl = arg_types[ci][0];
- strsubst(b2_decl, "{dir}", "wire");
- strsubst(b2_decl, "{name}", "b2");
-
- std::string y_decl = arg_types[yi][0];
- strsubst(y_decl, "{dir}", "output");
- strsubst(y_decl, "{name}", "y");
-
- std::string a_ref = small_arg_types[ai][1];
- strsubst(a_ref, "{dir}", "input");
- strsubst(a_ref, "{name}", "a");
-
- std::string b1_ref = arg_types[bi][1];
- strsubst(b1_ref, "{dir}", "wire");
- strsubst(b1_ref, "{name}", "b1");
-
- std::string b2_ref = arg_types[ci][1];
- strsubst(b2_ref, "{dir}", "wire");
- strsubst(b2_ref, "{name}", "b2");
-
- std::string y_ref = arg_types[yi][1];
- strsubst(y_ref, "{dir}", "output");
- strsubst(y_ref, "{name}", "y");
-
- char buffer[1024];
- snprintf(buffer, 1024, "rtl/ternary_ops_%02d%02d%02d%02d.v", ai, bi, ci, yi);
-
- FILE *f = fopen(buffer, "w");
- fprintf(f, "module ternary_ops_%02d%02d%02d%02d(a, b, y);\n", ai, bi, ci, yi);
- fprintf(f, "%s;\n", a_decl.c_str());
- fprintf(f, "input [%s+%s-1:0] b;\n", arg_types[bi][2], arg_types[ci][2]);
- 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]);
- fprintf(f, "%s = b[%s-1:0];\n", b2_decl.c_str(), arg_types[ci][2]);
- fprintf(f, "%s;\n", y_decl.c_str());
- fprintf(f, "assign %s = %s ? %s : %s;\n", y_ref.c_str(),
- a_ref.c_str(), b1_ref.c_str(), b2_ref.c_str());
- fprintf(f, "endmodule\n");
- fclose(f);
- }
-#endif
-
-#ifdef GENERATE_CONCAT_OPS
- for (int ai = 0; ai < sizeof(small_arg_types)/sizeof(small_arg_types[0]); ai++)
- for (int bi = 0; bi < sizeof(small_arg_types)/sizeof(small_arg_types[0]); bi++)
- for (int yi = 0; yi < sizeof(arg_types)/sizeof(arg_types[0]); yi++)
- {
- std::string a_decl = small_arg_types[ai][0];
- strsubst(a_decl, "{dir}", "input");
- strsubst(a_decl, "{name}", "a");
-
- std::string b_decl = small_arg_types[bi][0];
- strsubst(b_decl, "{dir}", "input");
- strsubst(b_decl, "{name}", "b");
-
- std::string y_decl = arg_types[yi][0];
- strsubst(y_decl, "{dir}", "output");
- strsubst(y_decl, "{name}", "y");
-
- std::string a_ref = small_arg_types[ai][1];
- strsubst(a_ref, "{dir}", "input");
- strsubst(a_ref, "{name}", "a");
-
- std::string b_ref = small_arg_types[bi][1];
- strsubst(b_ref, "{dir}", "input");
- strsubst(b_ref, "{name}", "b");
-
- std::string y_ref = arg_types[yi][1];
- strsubst(y_ref, "{dir}", "output");
- strsubst(y_ref, "{name}", "y");
-
- char buffer[1024];
- snprintf(buffer, 1024, "rtl/concat_ops_%02d%02d%02d.v", ai, bi, yi);
-
- FILE *f = fopen(buffer, "w");
- fprintf(f, "module concat_ops_%02d%02d%02d(a, b, y);\n", ai, bi, yi);
- fprintf(f, "%s;\n", a_decl.c_str());
- fprintf(f, "%s;\n", b_decl.c_str());
- fprintf(f, "%s;\n", y_decl.c_str());
- fprintf(f, "assign %s = {%s, %s};\n", y_ref.c_str(), a_ref.c_str(), b_ref.c_str());
- fprintf(f, "endmodule\n");
- fclose(f);
- }
-#endif
-
-#ifdef GENERATE_REPEAT_OPS
- for (int a = 0; a < 4; a++)
- for (int bi = 0; bi < sizeof(small_arg_types)/sizeof(small_arg_types[0]); bi++)
- for (int yi = 0; yi < sizeof(arg_types)/sizeof(arg_types[0]); yi++)
- {
- std::string b_decl = small_arg_types[bi][0];
- strsubst(b_decl, "{dir}", "input");
- strsubst(b_decl, "{name}", "b");
-
- std::string y_decl = arg_types[yi][0];
- strsubst(y_decl, "{dir}", "output");
- strsubst(y_decl, "{name}", "y");
-
- std::string b_ref = small_arg_types[bi][1];
- strsubst(b_ref, "{dir}", "input");
- strsubst(b_ref, "{name}", "b");
-
- std::string y_ref = arg_types[yi][1];
- strsubst(y_ref, "{dir}", "output");
- strsubst(y_ref, "{name}", "y");
-
- char buffer[1024];
- snprintf(buffer, 1024, "rtl/repeat_ops_%02d%02d%02d.v", a, bi, yi);
-
- FILE *f = fopen(buffer, "w");
- fprintf(f, "module repeat_ops_%02d%02d%02d(a, b, y);\n", a, bi, yi);
- fprintf(f, "input a;\n");
- fprintf(f, "%s;\n", b_decl.c_str());
- fprintf(f, "%s;\n", y_decl.c_str());
- fprintf(f, "assign %s = {%d{%s}};\n", y_ref.c_str(), a, b_ref.c_str());
- fprintf(f, "endmodule\n");
- fclose(f);
- }
-#endif
-
-#ifdef GENERATE_EXPRESSIONS
- for (int i = 0; i < 1000; i++)
- {
- xorshift32(1234 + i);
- xorshift32();
- xorshift32();
- xorshift32();
-
- char buffer[1024];
- snprintf(buffer, 1024, "rtl/expression_%05d.v", i);
-
- FILE *f = fopen(buffer, "w");
- fprintf(f, "module expression_%05d(a, b, y);\n", i);
-
- for (char var = 'a'; var <= 'y'; var++)
- {
- fprintf(f, "%s [", var != 'y' ? "input" : "output");
- for (int j = 0; j < sizeof(arg_types)/sizeof(arg_types[0]); j++)
- fprintf(f, "%s%s", j ? "+" : "", arg_types[j][2]);
- fprintf(f, "-1:0] %c;\n", var);
-
- for (int j = 0; j < sizeof(arg_types)/sizeof(arg_types[0]); j++)
- {
- std::string decl = arg_types[j][0];
- strsubst(decl, "{dir}", "wire");
- snprintf(buffer, 1024, "%c%d", var, j);
- strsubst(decl, "{name}", buffer);
-
- if (var != 'y') {
- fprintf(f, "%s = %c[", decl.c_str(), var);
- for (int k = 0; k <= j; k++)
- fprintf(f, "%s%s", k ? "+" : "", arg_types[k][2]);
- fprintf(f, "-1:");
- for (int k = 0; k < j; k++)
- fprintf(f, "%s%s", k ? "+" : "", arg_types[k][2]);
- fprintf(f, "%s];\n", j ? "" : "0");
- } else
- fprintf(f, "%s;\n", decl.c_str());
- }
-
- if (var == 'b')
- var = 'x';
- }
-
- fprintf(f, "assign y = {");
- for (int j = 0; j < sizeof(arg_types)/sizeof(arg_types[0]); j++)
- fprintf(f, "%sy%d", j ? "," : "", j);
- fprintf(f, "};\n");
-
- for (int j = 0; j < sizeof(arg_types)/sizeof(arg_types[0]); j++) {
- fprintf(f, "assign y%d = ", j);
- print_expression(f, 1 + xorshift32() % 20);
- fprintf(f, ";\n");
- }
-
- fprintf(f, "endmodule\n");
- fclose(f);
- }
-#endif
-
- return 0;
-}
-
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