don't read into the heap while incrementing self.s (#1233, #1245)

2022-01-24 18:47:53 -07:00
parent e6c4ecfc10
commit a562793fce
5 changed files with 71 additions and 78 deletions
--- a/src/machine/machine_state.rs
+++ b/src/machine/machine_state.rs
@@ -55,6 +55,7 @@ pub struct MachineState {
    pub arena: Arena,
    pub(super) pdl: Vec<HeapCellValue>,
    pub(super) s: HeapPtr,
+    pub(super) s_offset: usize,
    pub(super) p: usize,
    pub(super) oip: u32, // first internal code ptr
    pub(super) iip : u32, // second internal code ptr