diff options
Diffstat (limited to 'engines/sci/engine/vm.cpp')
| -rw-r--r-- | engines/sci/engine/vm.cpp | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/engines/sci/engine/vm.cpp b/engines/sci/engine/vm.cpp index d28f96c523..42c1dd1705 100644 --- a/engines/sci/engine/vm.cpp +++ b/engines/sci/engine/vm.cpp @@ -506,10 +506,6 @@ ExecStack *add_exec_stack_entry(EngineState *s, reg_t pc, StackPtr sp, reg_t obj xstack.type = EXEC_STACK_TYPE_CALL; // Normal call s->_executionStack.push_back(xstack); - // FIXME: push_back can cause the storage of _executionStack to be reallocated. - // As a result, any pointers to a member of _executionStack becomes invalid. - // This can cause severe breakage since run_vm does exactly that... - return &(s->_executionStack.back()); } @@ -978,13 +974,15 @@ void run_vm(EngineState *s, int restoring) { int argc = (opparams[1] >> 1) // Given as offset, but we need count + 1 + restadjust; StackPtr call_base = xs->sp - argc; - + StackPtr cur_sp = xs->sp; xs->sp[1].offset += restadjust; + xs->sp = call_base; + + // NB: add_exec_stack_entry can re-allocate the execution stacks xs_new = add_exec_stack_entry(s, make_reg(xs->addr.pc.segment, xs->addr.pc.offset + opparams[0]), - xs->sp, xs->objp, (validate_arithmetic(*call_base)) + restadjust, + cur_sp, xs->objp, (validate_arithmetic(*call_base)) + restadjust, call_base, NULL_SELECTOR, xs->objp, s->_executionStack.size()-1, xs->local_segment); restadjust = 0; // Used up the &rest adjustment - xs->sp = call_base; s->_executionStackPosChanged = true; break; |