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Added a print_heap mechanism into vm

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Pretty simple implementation, nothing massive.
In VERBOSE mode, heap is tracked for any allocations/deletions,
printing it if so.
This commit is contained in:
Aryadev Chavali
2023-11-01 21:39:00 +00:00
parent be312cfbbf
commit 32c1bcb859
2 changed files with 49 additions and 0 deletions
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48
vm/runtime.c
View File

@@ -261,6 +261,7 @@ err_t vm_execute_all(vm_t *vm)
#if VERBOSE >= 2
registers_t prev_registers = vm->registers;
size_t prev_sptr = 0;
size_t prev_pages = 0;
#endif
while (program->instructions[program->ptr].opcode != OP_HALT &&
program->ptr < program->max)
@@ -276,6 +277,15 @@ err_t vm_execute_all(vm_t *vm)
"----------------------------------------------------------------------"
"----------\n",
stdout);
if (prev_pages != vm->heap.pages)
{
vm_print_heap(vm, stdout);
prev_pages = vm->heap.pages;
fputs("------------------------------------------------------------------"
"----"
"----------\n",
stdout);
}
if (memcmp(&prev_registers, &vm->registers, sizeof(darr_t)) != 0)
{
vm_print_registers(vm, stdout);
@@ -419,12 +429,50 @@ void vm_print_program(vm_t *vm, FILE *fp)
fprintf(fp, "]\n");
}
void vm_print_heap(vm_t *vm, FILE *fp)
{
heap_t heap = vm->heap;
fprintf(fp, "Heap.pages = %lu\nHeap.data = [", heap.pages);
if (heap.pages == 0)
{
fprintf(fp, "]\n");
return;
}
page_t *cur = heap.beg;
fprintf(fp, "\n");
for (size_t i = 0; i < heap.pages; ++i)
{
fprintf(fp, "\tPage[%lu]: ", i);
if (!cur)
fprintf(fp, "<NIL>\n");
else
{
fprintf(fp, "{");
for (size_t j = 0; j < cur->available; ++j)
{
fprintf(fp, "%x", cur->data[j]);
if (j != cur->available - 1)
fprintf(fp, ", ");
else if ((j % 8) == 7)
fprintf(fp, ",\n\t\t");
}
fprintf(fp, "}\n");
cur = cur->next;
}
}
fprintf(fp, "]\n");
}
void vm_print_all(vm_t *vm, FILE *fp)
{
fputs("----------------------------------------------------------------------"
"----------\n",
fp);
vm_print_program(vm, fp);
fputs("----------------------------------------------------------------------"
"----------\n",
fp);
vm_print_heap(vm, fp);
fputs("----------------------------------------------------------------------"
"----------\n",
fp);