inp000.c
2.12 KB
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/*
* vi_lerp000.c - generate test vectors for max module
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
/*
* G l o b a l s
*/
int frac, rgb_a, rgb_b, sync_b;
char *prog_name;
static void
print_vectors()
{
static int first_time = 1;
if(first_time)
{
first_time = 0;
printf("#\n");
printf("# created by %s.c\n", prog_name);
printf("#\n");
printf("vclk @C 1(8) 0(8)\n");
printf("frac[4:0] @I @E 0\n");
printf("rgb_a[7:0] @I @E 0\n");
printf("rgb_b[7:0] @I @E 0\n");
printf("sync_b @I @E 0\n");
printf("\n"); /* required newline */
}
/*
* print input signals
*/
printf("0x%.2x 0x%.2x 0x%.2x %d\n", frac, rgb_a, rgb_b, sync_b);
}
void usage(void)
{
fprintf(stderr, "Try again \n");
exit(1);
}
void initialize(void)
{
frac = 0;
rgb_a = 0;
rgb_b = 0;
sync_b = 0;
}
void setwires(int fracval, int rgb_aval, int rgb_bval, int sync_bval)
{
frac = fracval;
rgb_a = rgb_aval;
rgb_b = rgb_bval;
sync_b = sync_bval;
print_vectors();
}
void HandTests(void)
{
int i;
for (i=0; i<32; i++)
{
setwires(i, 0, 0, 0);
setwires(i, 0, 0, 1);
setwires(i, 0, 255, 0);
setwires(i, 0, 255, 1);
setwires(i, 255, 0, 0);
setwires(i, 255, 0, 1);
setwires(i, 255, 255, 0);
setwires(i, 255, 255, 1);
}
}
void DoRandomTests(void)
{
int i;
/* need to use a constant seed so that we can
diff tab files against a golden set stored away
to see if anything has broken later */
srandom(100);
for (i=0; i<20000; i++)
{
setwires(random() & 0x1f,
random() & 0xff,
random() & 0xff,
random() & 0x01);
}
}
int
main(int argc, char **argv)
{
int c;
extern char *optarg;
extern int optind;
char *ofile = NULL;
int i;
prog_name = argv[0];
/* Print Headers */
print_vectors();
initialize();
HandTests();
DoRandomTests();
/* Flush pipe */
setwires(0, 0, 0, 0);
for (i=0; i<3; i++)
print_vectors();
}