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minor cleanup and comments

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This commit is contained in:
ChrisCoxArt 2021-09-28 23:18:31 -07:00
parent cb3cefba9a
commit d610c3c775
1 changed files with 13 additions and 6 deletions
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19
netlist_sim.c
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@ -496,7 +496,7 @@ recalcNodeList(state_t *state)
static inline void
add_nodes_dependant(state_t *state, nodenum_t a, nodenum_t b)
{
/* O(N^2) algorithm, but only run once at initialization */
/* O(N^2) behavior, but only run once at initialization */
for (count_t g = 0; g < state->nodes_dependants[a]; g++)
if (state->nodes_dependant[a][g] == b)
return;
@ -507,7 +507,7 @@ add_nodes_dependant(state_t *state, nodenum_t a, nodenum_t b)
static inline void
add_nodes_left_dependant(state_t *state, nodenum_t a, nodenum_t b)
{
/* O(N^2) algorithm, but only run once at initialization */
/* O(N^2) behavior, but only run once at initialization */
for (count_t g = 0; g < state->nodes_left_dependants[a]; g++)
if (state->nodes_left_dependant[a][g] == b)
return;
@ -590,6 +590,7 @@ setupNodesAndTransistors(netlist_transdefs *transdefs, BOOL *node_is_pullup, nod
(state->transistors_c1[j2] == c2 &&
state->transistors_c2[j2] == c1))) {
found = YES;
break;
}
}
if (!found) {
@ -608,9 +609,15 @@ setupNodesAndTransistors(netlist_transdefs *transdefs, BOOL *node_is_pullup, nod
count_t c1c2total = 0;
for (i = 0; i < state->transistors; i++) {
nodenum_t gate = state->transistors_gate[i];
nodenum_t c1 = state->transistors_c1[i];
nodenum_t c2 = state->transistors_c2[i];
if (gate >= nodes || c1 >= nodes || c2 >= nodes)
fprintf(stderr,"FATAL - bad transistor definition %d\n", i);
state->nodes_gatecount[gate]++;
c1c2count[state->transistors_c1[i]]++;
c1c2count[state->transistors_c2[i]]++;
c1c2count[c1]++;
c1c2count[c2]++;
c1c2total += 2;
}
@ -620,11 +627,11 @@ setupNodesAndTransistors(netlist_transdefs *transdefs, BOOL *node_is_pullup, nod
state->nodes_c1c2offset[i] = c1c2offset;
c1c2offset += c1c2count[i];
}
state->nodes_c1c2offset[i] = c1c2offset; /* fill the end entry, so we can calculate distances/counts */
state->nodes_c1c2offset[i] = c1c2offset;
/* create and fill the nodes_c1c2s array according to these offsets */
state->nodes_c1c2s = calloc(c1c2total, sizeof(*state->nodes_c1c2s));
memset(c1c2count, 0, state->nodes * sizeof(*c1c2count));
memset(c1c2count, 0, state->nodes * sizeof(*c1c2count)); /* zero counts so we can reuse them */
for (i = 0; i < state->transistors; i++) {
nodenum_t c1 = state->transistors_c1[i];
nodenum_t c2 = state->transistors_c2[i];