feat: optimize VM using dispatch table

2026-10-29 02:59:38 +03:00
parent e2de23ed57
commit f4c97795fa
18 changed files with 1240 additions and 938 deletions
@@ -0,0 +1,104 @@
+#include <vm/fzl_vm.h>
+#include <vm/internals/opcode.h>
+
+int op_cmp_eq(fzl_vm_t *vm)
+{
+  if (vm->dtop < 2)
+  {
+    snprintf(last_err, sizeof(last_err),
+             "runtime error - expected two values in data stack");
+    print_err_data(vm);
+    return -1;
+  }
+
+  fzl_value_t req = vm->dstack[--vm->dtop];
+  fzl_value_t leq = vm->dstack[--vm->dtop];
+  vm->dstack[vm->dtop++] =
+      (fzl_value_t){.type = FZL_TYPE_BOOL, .as.b = leq.as.u == req.as.u};
+  return 0;
+}
+
+int op_cmp_neq(fzl_vm_t *vm)
+{
+  if (vm->dtop < 2)
+  {
+    snprintf(last_err, sizeof(last_err),
+             "runtime error - expected two values in data stack");
+    print_err_data(vm);
+    return -1;
+  }
+
+  fzl_value_t rneq = vm->dstack[--vm->dtop];
+  fzl_value_t lneq = vm->dstack[--vm->dtop];
+  vm->dstack[vm->dtop++] =
+      (fzl_value_t){.type = FZL_TYPE_BOOL, .as.b = lneq.as.u != rneq.as.u};
+  return 0;
+}
+
+int op_cmp_lt(fzl_vm_t *vm)
+{
+  if (vm->dtop < 2)
+  {
+    snprintf(last_err, sizeof(last_err),
+             "runtime error - expected two values in data stack");
+    print_err_data(vm);
+    return -1;
+  }
+
+  fzl_value_t rlt = vm->dstack[--vm->dtop];
+  fzl_value_t llt = vm->dstack[--vm->dtop];
+  vm->dstack[vm->dtop++] =
+      (fzl_value_t){.type = FZL_TYPE_BOOL, .as.b = llt.as.u < rlt.as.u};
+  return 0;
+}
+
+int op_cmp_lteq(fzl_vm_t *vm)
+{
+  if (vm->dtop < 2)
+  {
+    snprintf(last_err, sizeof(last_err),
+             "runtime error - expected two values in data stack");
+    print_err_data(vm);
+    return -1;
+  }
+
+  fzl_value_t rlteq = vm->dstack[--vm->dtop];
+  fzl_value_t llteq = vm->dstack[--vm->dtop];
+  vm->dstack[vm->dtop++] =
+      (fzl_value_t){.type = FZL_TYPE_BOOL, .as.b = llteq.as.u <= rlteq.as.u};
+  return 0;
+}
+
+int op_cmp_gt(fzl_vm_t *vm)
+{
+  if (vm->dtop < 2)
+  {
+    snprintf(last_err, sizeof(last_err),
+             "runtime error - expected two values in data stack");
+    print_err_data(vm);
+    return -1;
+  }
+
+  fzl_value_t rgt = vm->dstack[--vm->dtop];
+  fzl_value_t lgt = vm->dstack[--vm->dtop];
+  vm->dstack[vm->dtop++] =
+      (fzl_value_t){.type = FZL_TYPE_BOOL, .as.b = lgt.as.u > rgt.as.u};
+  return 0;
+}
+
+int op_cmp_gteq(fzl_vm_t *vm)
+{
+  if (vm->dtop < 2)
+  {
+    snprintf(last_err, sizeof(last_err),
+             "runtime error - expected two values in data stack");
+    print_err_data(vm);
+    return -1;
+  }
+
+  fzl_value_t rgteq = vm->dstack[--vm->dtop];
+  fzl_value_t lgteq = vm->dstack[--vm->dtop];
+  vm->dstack[vm->dtop++] =
+      (fzl_value_t){.type = FZL_TYPE_BOOL, .as.b = lgteq.as.u >= rgteq.as.u};
+  return 0;
+}