#include <cstdio>\r
#include <cmath>\r
\r
-\r
-/* Didn't the Montium use Q15 instead of Q14? */\r
+/* Use Q15 fixed point format (1 sign bit plus 15 fractional bits) */\r
#define FIXED_POINT 15\r
#define WORD_SIZE 16\r
\r
return n / (float)(1<<FIXED_POINT);\r
}\r
\r
-void print_mem(mem m, int offset, int size, bool fixed)\r
+void print_mem(mem m, int offset, int size, bool fixed, bool newline)\r
{\r
int i;\r
for(i = offset;i<offset+size;i++)\r
printf("%0.4f", from_fixed(get_mem(m->id, i)));\r
else\r
printf("%04hx", (short)get_mem(m->id, i));\r
- if ((i + 1) % WORDS_PER_LINE == 0)\r
+ if (newline && (i + 1) % WORDS_PER_LINE == 0)\r
printf("\n");\r
else if ((i + 1) % WORDS_PER_GROUP == 0)\r
printf(" ");\r
}\r
- if (i % WORDS_PER_LINE != 0)\r
+ if (newline && i % WORDS_PER_LINE != 0)\r
printf("\n");\r
}\r
\r
\r
for (i=0;i<PARAM_N_t;i++)\r
{\r
- /* We take the sine from 0 to 2*2*Pi, ie two periods. We divide \r
+ /* We take the sine from 0 to 20*2*Pi, ie twenty periods. We divide \r
* the value by PARAM_N_t to prevent overflow. */\r
- int value = to_fixed(sin((float)i*2*2*M_PI/PARAM_N_t)/PARAM_N_t);\r
+ int value = to_fixed(sin((float)i*20*2*M_PI/PARAM_N_t)/PARAM_N_t);\r
\r
if (i<PARAM_N_t/2)\r
{\r
}\r
\r
printf("re(W)\n");\r
- print_mem(twiddle_re, 0, PARAM_N_t/2, true);\r
+ print_mem(twiddle_re, 0, PARAM_N_t/2, true, true);\r
printf("im(W)\n");\r
- print_mem(twiddle_im, 0, PARAM_N_t/2, true);\r
+ print_mem(twiddle_im, 0, PARAM_N_t/2, true, true);\r
printf("re(in_a)\n");\r
- print_mem(input_a_re, 0, PARAM_N_t/2, true);\r
+ print_mem(input_a_re, 0, PARAM_N_t/2, true, true);\r
printf("re(in_b)\n");\r
- print_mem(input_b_re, 0, PARAM_N_t/2, true);\r
+ print_mem(input_b_re, 0, PARAM_N_t/2, true, true);\r
+\r
+ printf("re_in = [");\r
+ print_mem(input_a_re, 0, PARAM_N_t/2, true, false);\r
+ print_mem(input_b_re, 0, PARAM_N_t/2, true, false);\r
+ printf("];\n");\r
+\r
+/* Write out memory contents for use by the python simulator */\r
+ save_mem_range_to_file(input_a_re->id, 0, PARAM_N_t/2, "Memory/sin_a_re.mm");\r
+ save_mem_range_to_file(input_a_im->id, 0, PARAM_N_t/2, "Memory/sin_a_im.mm");\r
+ save_mem_range_to_file(input_b_re->id, 0, PARAM_N_t/2, "Memory/sin_b_re.mm");\r
+ save_mem_range_to_file(input_b_im->id, 0, PARAM_N_t/2, "Memory/sin_b_im.mm");\r
+ save_mem_range_to_file(twiddle_re->id, 0, PARAM_N_t/2, "Memory/twiddle_re.mm");\r
+ save_mem_range_to_file(twiddle_im->id, 0, PARAM_N_t/2, "Memory/twiddle_im.mm");\r
}\r
\r
void post_run()\r
{\r
if (PARAM_n_t % 2 == 0) {\r
- /* When the number of stages is odd, the \r
+ /* When the number of stages is even, the \r
* outputs end up at the left memories again */\r
output_a_re = alloc_mem(P0M0);\r
output_a_im = alloc_mem(P1M0);\r
output_b_re = alloc_mem(P2M1);\r
output_b_im = alloc_mem(P3M1);\r
}\r
- printf("re(out_a)\n");\r
- print_mem(output_a_re, 0, PARAM_N_t/2, true);\r
- print_mem(output_b_re, 0, PARAM_N_t/2, true);\r
- printf("im(out_a)\n");\r
- print_mem(output_a_im, 0, PARAM_N_t/2, true);\r
- print_mem(output_b_im, 0, PARAM_N_t/2, true);\r
+ printf("re_out = [");\r
+ print_mem(output_a_re, 0, PARAM_N_t/2, true, false);\r
+ print_mem(output_b_re, 0, PARAM_N_t/2, true, false);\r
+ printf("];\n");\r
+ printf("im_out = [");\r
+ print_mem(output_a_im, 0, PARAM_N_t/2, true, false);\r
+ print_mem(output_b_im, 0, PARAM_N_t/2, true, false);\r
+ printf("];\n");\r
+ /*\r
+ printf("re(out)\n");\r
+ print_mem(output_a_re, 0, PARAM_N_t/2, false, true);\r
+ print_mem(output_b_re, 0, PARAM_N_t/2, false, true);\r
+ printf("im(out)\n");\r
+ print_mem(output_a_im, 0, PARAM_N_t/2, false, true);\r
+ print_mem(output_b_im, 0, PARAM_N_t/2, false, true);\r
+ */\r
\r
}\r