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Allow VPI callbacks to var array words.

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Functions like $monitor need to attach callbacks to array words if
those words are to be monitored. Have the array hold all the callbacks
for words in the array, under the assumption that the monitored words
are sparse.
This commit is contained in:
Stephen Williams
2008-05-20 18:30:56 -07:00
parent 007056d671
commit d1daf6733f
6 changed files with 137 additions and 26 deletions
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vvp/array.cc
+85 -10
View File
@@ -63,6 +63,7 @@ struct __vpiArray {
struct __vpiArrayWord*vals_words;
class vvp_fun_arrayport*ports_;
struct __vpiCallback *vpi_callbacks;
};
struct __vpiArrayIterator {
@@ -192,11 +193,25 @@ static const struct __vpirt vpip_array_vthr_A_rt = {
# define ARRAY_HANDLE(ref) (assert(ref->vpi_type->type_code==vpiMemory), \
(struct __vpiArray*)ref)
# define ARRAY_VAR_WORD(ref) (assert(ref->vpi_type->type_code==vpiMemoryWord), \
(struct __vpiArrayWord*)ref)
static struct __vpiArrayWord* array_var_word_from_handle(vpiHandle ref)
{
if (ref == 0)
return 0;
if (ref->vpi_type != &vpip_array_var_word_rt)
return 0;
# define ARRAY_VTHR_A_HANDLE(ref) (assert(ref->vpi_type->type_code==vpiMemoryWord), \
(struct __vpiArrayVthrA*)ref)
return (struct __vpiArrayWord*) ref;
}
static struct __vpiArrayVthrA* array_vthr_a_from_handle(vpiHandle ref)
{
if (ref == 0)
return 0;
if (ref->vpi_type != &vpip_array_vthr_A_rt)
return 0;
return (struct __vpiArrayVthrA*) ref;
}
static void array_make_vals_words(struct __vpiArray*parent)
{
@@ -315,9 +330,10 @@ static vpiHandle vpi_array_index(vpiHandle ref, int index)
static int vpi_array_var_word_get(int code, vpiHandle ref)
{
struct __vpiArrayWord*obj = ARRAY_VAR_WORD(ref);
struct __vpiArrayWord*obj = array_var_word_from_handle(ref);
struct __vpiArray*parent;
assert(obj);
decode_array_word_pointer(obj, parent);
switch (code) {
@@ -331,9 +347,10 @@ static int vpi_array_var_word_get(int code, vpiHandle ref)
static void vpi_array_var_word_get_value(vpiHandle ref, p_vpi_value value)
{
struct __vpiArrayWord*obj = ARRAY_VAR_WORD(ref);
struct __vpiArrayWord*obj = array_var_word_from_handle(ref);
struct __vpiArray*parent;
assert(obj);
unsigned index = decode_array_word_pointer(obj, parent);
vpip_vec4_get_value(parent->vals[index], parent->vals_width,
@@ -342,9 +359,10 @@ static void vpi_array_var_word_get_value(vpiHandle ref, p_vpi_value value)
static vpiHandle vpi_array_var_word_put_value(vpiHandle ref, p_vpi_value vp, int flags)
{
struct __vpiArrayWord*obj = ARRAY_VAR_WORD(ref);
struct __vpiArrayWord*obj = array_var_word_from_handle(ref);
struct __vpiArray*parent;
assert(obj);
unsigned index = decode_array_word_pointer(obj, parent);
vvp_vector4_t val = vec4_from_vpi_value(vp, parent->vals_width);
@@ -426,7 +444,8 @@ static int array_index_free_object(vpiHandle ref)
static int vpi_array_vthr_A_get(int code, vpiHandle ref)
{
struct __vpiArrayVthrA*obj = ARRAY_VTHR_A_HANDLE(ref);
struct __vpiArrayVthrA*obj = array_vthr_a_from_handle(ref);
assert(obj);
struct __vpiArray*parent = obj->array;
switch (code) {
@@ -443,7 +462,8 @@ static int vpi_array_vthr_A_get(int code, vpiHandle ref)
}
static void vpi_array_vthr_A_get_value(vpiHandle ref, p_vpi_value value)
{
struct __vpiArrayVthrA*obj = ARRAY_VTHR_A_HANDLE(ref);
struct __vpiArrayVthrA*obj = array_vthr_a_from_handle(ref);
assert(obj);
struct __vpiArray*parent = obj->array;
assert(parent);
@@ -456,7 +476,8 @@ static void vpi_array_vthr_A_get_value(vpiHandle ref, p_vpi_value value)
static vpiHandle vpi_array_vthr_A_put_value(vpiHandle ref, p_vpi_value vp, int)
{
struct __vpiArrayVthrA*obj = ARRAY_VTHR_A_HANDLE(ref);
struct __vpiArrayVthrA*obj = array_vthr_a_from_handle(ref);
assert(obj);
struct __vpiArray*parent = obj->array;
unsigned index = obj->address;
@@ -579,6 +600,7 @@ static vpiHandle vpip_make_array(char*label, const char*name,
// Initialize (clear) the read-ports list.
obj->ports_ = 0;
obj->vpi_callbacks = 0;
/* Add this symbol to the array_symbols table for later lookup. */
if (!array_table)
@@ -745,6 +767,42 @@ void array_word_change(vvp_array_t array, unsigned long addr)
{
for (vvp_fun_arrayport*cur = array->ports_; cur; cur = cur->next_)
cur->check_word_change(addr);
// Run callbacks attatched to the array itself.
struct __vpiCallback *next = array->vpi_callbacks;
struct __vpiCallback *prev = 0;
while (next) {
struct __vpiCallback*cur = next;
next = cur->next;
// Skip callbacks for callbacks not for me.
if (cur->extra_data != (long)addr) {
prev = cur;
continue;
}
if (cur->cb_data.cb_rtn != 0) {
if (cur->cb_data.value)
vpip_vec4_get_value(array->vals[addr], array->vals_width,
false, cur->cb_data.value);
callback_execute(cur);
prev = cur;
} else if (prev == 0) {
array->vpi_callbacks = next;
cur->next = 0;
delete_vpi_callback(cur);
} else {
assert(prev->next == cur);
prev->next = next;
cur->next = 0;
delete_vpi_callback(cur);
}
}
}
class array_port_resolv_list_t : public resolv_list_s {
@@ -780,6 +838,23 @@ bool array_port_resolv_list_t::resolve(bool mes)
return true;
}
void vpip_array_word_change(struct __vpiCallback*cb, vpiHandle obj)
{
struct __vpiArray*parent = 0;
if (struct __vpiArrayWord*word = array_var_word_from_handle(obj)) {
unsigned addr = decode_array_word_pointer(word, parent);
cb->extra_data = addr;
} else if (struct __vpiArrayVthrA*word = array_vthr_a_from_handle(obj)) {
parent = word->array;
cb->extra_data = word->address;
}
assert(parent);
cb->next = parent->vpi_callbacks;
parent->vpi_callbacks = cb;
}
void compile_array_port(char*label, char*array, char*addr)
{
array_port_resolv_list_t*resolv_mem