/**
* Appends a float to the string.
*
* @param str the string
* @param val the float to add
* @param len the length whole number part in char, e.g. 3 for 100. (max 9)
* @param dec the number of decimals
* @param fixed forces the specified size by padding with spaces
*
* @note one digit is added to the length to always allow negative numbers
* @note if the number doesn't fit ### will be added instead.
*/
void str_addFloatExt(Str *str, float val, int len, int dec, veBool fixed)
{
char format[20];
float frac, absval;
int fracint;
int n;
int maxFrac = 1;
size_t numchars = 0;
size_t totalLength;
totalLength = (size_t) (len + dec + 1);
// NOTE: %f isn't supported, this must be implemented by integers!
// determine whole number and decimals
absval = (float) fabs(val);
frac = (float) fabs(val);
frac -= (int) absval;
for (n=0; n<dec; n++)
{
frac *= 10;
maxFrac *= 10;
}
// then round the decimal itself, and if necessary the whole number
// e.g. 0.999999... should always become 1.0
fracint = (int) (frac + 0.5);
if (fracint >= maxFrac)
{
absval += 1;
fracint = 0;
}
// only then display... force minus when negative, for e.g. -0.95
// but not -0.00
if (val < 0 && !((int) absval == 0 && fracint == 0) )
{
numchars++;
str_add(str, "-");
}
// report whole number
numchars += str_addIntExt(str, (int) absval, len);
if (dec == 0)
{
if (fixed)
str_repeat(str, " ", (int) (totalLength - numchars));
return;
}
// report decimals as well
str_add(str, ".");
sprintf(format, "%%0%dd", dec);
numchars += str_addIntFmt(str, fracint, dec, format);
if (fixed)
str_repeat(str, " ", (int) (totalLength - numchars));
}
/*
* This function draws a BUFT to drive a net pullup or pulldown value.
* If the drive strength is strong we can draw a C4<> constant as the
* pull value, otherwise we need to draw a C8<> constant.
*/
static char* draw_net_pull(ivl_net_logic_t lptr, ivl_drive_t drive, const char*level)
{
char*result;
char tmp[32];
if (drive == IVL_DR_STRONG) {
size_t result_len = 5 + ivl_logic_width(lptr);
result = malloc(result_len);
char*dp = result;
strcpy(dp, "C4<");
dp += strlen(dp);
str_repeat(dp, level, ivl_logic_width(lptr));
dp += ivl_logic_width(lptr);
*dp++ = '>';
*dp = 0;
assert(dp >= result);
assert((unsigned)(dp - result) <= result_len);
} else {
char val[4];
size_t result_len = 5 + 3*ivl_logic_width(lptr);
result = malloc(result_len);
char*dp = result;
val[0] = "01234567"[drive];
val[1] = val[0];
val[2] = level[0];
val[3] = 0;
strcpy(dp, "C8<");
dp += strlen(dp);
str_repeat(dp, val, ivl_logic_width(lptr));
dp += 3*ivl_logic_width(lptr);
*dp++ = '>';
*dp = 0;
assert(dp >= result);
assert((unsigned)(dp - result) <= result_len);
}
/* Make the constant an argument to a BUFZ, which is
what we use to drive the PULLed value. */
fprintf(vvp_out, "L_%p .functor BUFT 1, %s, C4<0>, C4<0>, C4<0>;\n",
lptr, result);
snprintf(tmp, sizeof tmp, "L_%p", lptr);
result = realloc(result, strlen(tmp)+1);
strcpy(result, tmp);
return result;
}
void run_iter(int n) {
printf("void run_iter(int n) {\n");
int i = 0;
for (i = 0; i < n; i++) {
printf(" for (i = 0; i < n; i++) {\n");
/* str_write(">ONE H**o sapiens alu\n"); */
str_repeat(alu, SCALE * 2);
/* str_write(">TWO IUB ambiguity codes\n"); */
rand_fasta(iub, SCALE * 3);
/* str_write(">THREE H**o sapiens frequency\n"); */
rand_fasta(homosapiens, SCALE * 5);
if (checksum != EXPECT_CKSUM) {
printf(" if (checksum != EXPECT_CKSUM) {\n");
errx(EXIT_FAILURE, "checksum fail: %u vs %u",
checksum, EXPECT_CKSUM);
}
reset_state();
}
}
static char* draw_net_input_drive(ivl_nexus_t nex, ivl_nexus_ptr_t nptr)
{
unsigned nptr_pin = ivl_nexus_ptr_pin(nptr);
ivl_net_const_t cptr;
ivl_net_logic_t lptr;
ivl_signal_t sptr;
ivl_lpm_t lpm;
lptr = ivl_nexus_ptr_log(nptr);
if (lptr
&& ((ivl_logic_type(lptr)==IVL_LO_BUFZ)||(ivl_logic_type(lptr)==IVL_LO_BUFT))
&& (nptr_pin == 0))
do {
if (! can_elide_bufz(lptr, nptr))
break;
return strdup(draw_net_input(ivl_logic_pin(lptr, 1)));
} while(0);
/* If this is a pulldown device, then there is a single pin
that drives a constant value to the entire width of the
vector. The driver normally drives a pull0 value, so a C8<>
constant is appropriate, but if the drive is really strong,
then we can draw a C4<> constant instead. */
if (lptr && (ivl_logic_type(lptr) == IVL_LO_PULLDOWN)) {
if (ivl_nexus_ptr_drive0(nptr) == IVL_DR_STRONG) {
size_t result_len = ivl_logic_width(lptr) + 5;
char*result = malloc(result_len);
char*dp = result;
strcpy(dp, "C4<");
dp += strlen(dp);
str_repeat(dp, "0", ivl_logic_width(lptr));
dp += ivl_logic_width(lptr);
*dp++ = '>';
*dp = 0;
assert(dp >= result);
assert((unsigned)(dp - result) <= result_len);
return result;
} else {
char val[4];
size_t result_len = 3*ivl_logic_width(lptr) + 5;
char*result = malloc(result_len);
char*dp = result;
val[0] = "01234567"[ivl_nexus_ptr_drive0(nptr)];
val[1] = val[0];
val[2] = '0';
val[3] = 0;
strcpy(dp, "C8<");
dp += strlen(dp);
str_repeat(dp, val, ivl_logic_width(lptr));
dp += 3*ivl_logic_width(lptr);
*dp++ = '>';
*dp = 0;
assert(dp >= result);
assert((unsigned)(dp - result) <= result_len);
return result;
}
}
if (lptr && (ivl_logic_type(lptr) == IVL_LO_PULLUP)) {
char*result;
char tmp[32];
if (ivl_nexus_ptr_drive1(nptr) == IVL_DR_STRONG) {
size_t result_len = 5 + ivl_logic_width(lptr);
result = malloc(result_len);
char*dp = result;
strcpy(dp, "C4<");
dp += strlen(dp);
str_repeat(dp, "1", ivl_logic_width(lptr));
dp += ivl_logic_width(lptr);
*dp++ = '>';
*dp = 0;
assert(dp >= result);
assert((unsigned)(dp - result) <= result_len);
} else {
char val[4];
size_t result_len = 5 + 3*ivl_logic_width(lptr);
result = malloc(result_len);
char*dp = result;
val[0] = "01234567"[ivl_nexus_ptr_drive1(nptr)];
val[1] = val[0];
val[2] = '1';
val[3] = 0;
strcpy(dp, "C8<");
dp += strlen(dp);
str_repeat(dp, val, ivl_logic_width(lptr));
dp += 3*ivl_logic_width(lptr);
*dp++ = '>';
*dp = 0;
assert(dp >= result);
assert((unsigned)(dp - result) <= result_len);
}
/* Make the constant an argument to a BUFZ, which is
what we use to drive the PULLed value. */
fprintf(vvp_out, "L_%p .functor BUFT 1, %s, C4<0>, C4<0>, C4<0>;\n",
lptr, result);
snprintf(tmp, sizeof tmp, "L_%p", lptr);
result = realloc(result, strlen(tmp)+1);
strcpy(result, tmp);
return result;
}
if (lptr && (nptr_pin == 0)) {
char tmp[128];
snprintf(tmp, sizeof tmp, "L_%p", lptr);
return strdup(tmp);
}
sptr = ivl_nexus_ptr_sig(nptr);
if (sptr && (ivl_signal_type(sptr) == IVL_SIT_REG)) {
char tmp[128];
/* Input is a .var. This device may be a non-zero pin
because it may be an array of reg vectors. */
snprintf(tmp, sizeof tmp, "v%p_%u", sptr, nptr_pin);
if (ivl_signal_dimensions(sptr) > 0) {
fprintf(vvp_out, "v%p_%u .array/port v%p, %u;\n",
sptr, nptr_pin, sptr, nptr_pin);
}
return strdup(tmp);
}
cptr = ivl_nexus_ptr_con(nptr);
if (cptr) {
char *result = 0;
ivl_expr_t d_rise, d_fall, d_decay;
unsigned dly_width = 0;
/* Constants should have exactly 1 pin, with a literal value. */
assert(nptr_pin == 0);
switch (ivl_const_type(cptr)) {
case IVL_VT_LOGIC:
case IVL_VT_BOOL:
case IVL_VT_STRING:
if ((ivl_nexus_ptr_drive0(nptr) == IVL_DR_STRONG)
&& (ivl_nexus_ptr_drive1(nptr) == IVL_DR_STRONG)) {
result = draw_C4_to_string(cptr);
} else {
result = draw_C8_to_string(cptr,
ivl_nexus_ptr_drive0(nptr),
ivl_nexus_ptr_drive1(nptr));
}
dly_width = ivl_const_width(cptr);
break;
case IVL_VT_REAL:
result = draw_Cr_to_string(ivl_const_real(cptr));
dly_width = 0;
break;
default:
assert(0);
break;
}
d_rise = ivl_const_delay(cptr, 0);
d_fall = ivl_const_delay(cptr, 1);
d_decay = ivl_const_delay(cptr, 2);
/* We have a delayed constant, so we need to build some code. */
if (d_rise != 0) {
char tmp[128];
fprintf(vvp_out, "L_%p/d .functor BUFT 1, %s, "
"C4<0>, C4<0>, C4<0>;\n", cptr, result);
free(result);
/* Is this a fixed or variable delay? */
if (number_is_immediate(d_rise, 64, 0) &&
number_is_immediate(d_fall, 64, 0) &&
number_is_immediate(d_decay, 64, 0)) {
assert(! number_is_unknown(d_rise));
assert(! number_is_unknown(d_fall));
assert(! number_is_unknown(d_decay));
fprintf(vvp_out, "L_%p .delay %u "
"(%" PRIu64 ",%" PRIu64 ",%" PRIu64 ") L_%p/d;\n",
cptr, dly_width,
get_number_immediate64(d_rise),
get_number_immediate64(d_fall),
get_number_immediate64(d_decay), cptr);
} else {
ivl_signal_t sig;
// We do not currently support calculating the decay
// from the rise and fall variable delays.
assert(d_decay != 0);
assert(ivl_expr_type(d_rise) == IVL_EX_SIGNAL);
assert(ivl_expr_type(d_fall) == IVL_EX_SIGNAL);
assert(ivl_expr_type(d_decay) == IVL_EX_SIGNAL);
fprintf(vvp_out, "L_%p .delay %u L_%p/d",
cptr, dly_width, cptr);
sig = ivl_expr_signal(d_rise);
assert(ivl_signal_dimensions(sig) == 0);
fprintf(vvp_out, ", v%p_0", sig);
sig = ivl_expr_signal(d_fall);
assert(ivl_signal_dimensions(sig) == 0);
fprintf(vvp_out, ", v%p_0", sig);
sig = ivl_expr_signal(d_decay);
assert(ivl_signal_dimensions(sig) == 0);
fprintf(vvp_out, ", v%p_0;\n", sig);
}
snprintf(tmp, sizeof tmp, "L_%p", cptr);
result = strdup(tmp);
} else {
char tmp[64];
fprintf(vvp_out, "L_%p .functor BUFT 1, %s, "
"C4<0>, C4<0>, C4<0>;\n", cptr, result);
free(result);
snprintf(tmp, sizeof tmp, "L_%p", cptr);
result = strdup(tmp);
}
return result;
}
lpm = ivl_nexus_ptr_lpm(nptr);
if (lpm) switch (ivl_lpm_type(lpm)) {
case IVL_LPM_FF:
case IVL_LPM_ABS:
case IVL_LPM_ADD:
case IVL_LPM_ARRAY:
case IVL_LPM_CAST_INT2:
case IVL_LPM_CAST_INT:
case IVL_LPM_CAST_REAL:
case IVL_LPM_CONCAT:
case IVL_LPM_CONCATZ:
case IVL_LPM_CMP_EEQ:
case IVL_LPM_CMP_EQ:
case IVL_LPM_CMP_GE:
case IVL_LPM_CMP_GT:
case IVL_LPM_CMP_NE:
case IVL_LPM_CMP_NEE:
case IVL_LPM_RE_AND:
case IVL_LPM_RE_OR:
case IVL_LPM_RE_XOR:
case IVL_LPM_RE_NAND:
case IVL_LPM_RE_NOR:
case IVL_LPM_RE_XNOR:
case IVL_LPM_SFUNC:
case IVL_LPM_SHIFTL:
case IVL_LPM_SHIFTR:
case IVL_LPM_SIGN_EXT:
case IVL_LPM_SUB:
case IVL_LPM_MULT:
case IVL_LPM_MUX:
case IVL_LPM_POW:
case IVL_LPM_DIVIDE:
case IVL_LPM_MOD:
case IVL_LPM_UFUNC:
case IVL_LPM_PART_VP:
case IVL_LPM_PART_PV: /* NOTE: This is only a partial driver. */
case IVL_LPM_REPEAT:
if (ivl_lpm_q(lpm) == nex) {
char tmp[128];
snprintf(tmp, sizeof tmp, "L_%p", lpm);
return strdup(tmp);
}
break;
}
fprintf(stderr, "vvp.tgt error: no input to nexus.\n");
assert(0);
return strdup("C<z>");
}
