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Allow &A<> argument syntax to take a reference to a VPI object.

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This allows the array index to be evaluated when the word is accessed,
and that in turn allows access in the ROSYNC scheduler phase to work
properly.
This commit is contained in:
Stephen Williams
2008-06-10 20:36:31 -07:00
parent 70768176f9
commit 608bad26cf
4 changed files with 40 additions and 2 deletions
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vvp/array.cc
+31
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@@ -83,6 +83,8 @@ struct __vpiArrayIndex {
struct __vpiArrayVthrA {
struct __vpiHandle base;
struct __vpiArray*array;
// If this is set, then use it to get the index value.
vpiHandle address_handle;
// If wid==0, then address is the address into the array.
unsigned address;
// If wid >0, then the address is the base and wid the vector
@@ -91,8 +93,16 @@ struct __vpiArrayVthrA {
unsigned get_address() const
{
if (address_handle) {
s_vpi_value vp;
vp.format = vpiIntVal;
vpi_get_value(address_handle, &vp);
return vp.value.integer;
}
if (wid == 0)
return address;
vvp_vector4_t tmp (wid);
for (unsigned idx = 0 ; idx < wid ; idx += 1) {
vvp_bit4_t bit = vthread_get_bit(vpip_current_vthread, address+idx);
@@ -1064,6 +1074,7 @@ vpiHandle vpip_make_vthr_A(char*label, unsigned addr)
assert(obj->array);
free(label);
obj->address_handle = 0;
obj->address = addr;
obj->wid = 0;
assert(addr < obj->array->array_count);
@@ -1082,12 +1093,32 @@ vpiHandle vpip_make_vthr_A(char*label, unsigned tbase, unsigned twid)
assert(obj->array);
free(label);
obj->address_handle = 0;
obj->address = tbase;
obj->wid = twid;
return &(obj->base);
}
vpiHandle vpip_make_vthr_A(char*label, char*symbol)
{
struct __vpiArrayVthrA*obj = (struct __vpiArrayVthrA*)
malloc(sizeof (struct __vpiArrayVthrA));
obj->base.vpi_type = &vpip_array_vthr_A_rt;
obj->array = array_find(label);
assert(obj->array);
free(label);
obj->address_handle = 0;
compile_vpi_lookup(&obj->address_handle, symbol);
obj->address = 0;
obj->wid = 0;
return &(obj->base);
}
void compile_array_cleanup(void)
{
if (array_table) {