diff options
Diffstat (limited to 'src/vm/core.js')
| -rw-r--r-- | src/vm/core.js | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/vm/core.js b/src/vm/core.js index 6303ee5..9b0fe77 100644 --- a/src/vm/core.js +++ b/src/vm/core.js @@ -19,7 +19,12 @@ class Core { normalize(pc, value) { - return (pc + value) % this.data.length; + const v = (pc + value) % this.data.length; + if (v < 0) { + return v + this.data.length; + } else { + return v; + } } |