From 94284ea9aa328f469a3b3ea5974f0e5a291ae7f5 Mon Sep 17 00:00:00 2001
From: gibbed <rick@gibbed.us>
Date: Fri, 23 Nov 2018 07:50:42 -0600
Subject: [PATCH] [CPU] Fix null termination in HIRBuilder::CommentFormat.

---
 src/xenia/cpu/hir/hir_builder.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/xenia/cpu/hir/hir_builder.cc b/src/xenia/cpu/hir/hir_builder.cc
index af954ca6c..e461996b5 100644
--- a/src/xenia/cpu/hir/hir_builder.cc
+++ b/src/xenia/cpu/hir/hir_builder.cc
@@ -764,7 +764,7 @@ void HIRBuilder::CommentFormat(const char* format, ...) {
   va_start(args, format);
   size_t chars_written = vsnprintf(p, kMaxCommentSize - 1, format, args);
   va_end(args);
-  size_t rewind = kMaxCommentSize - chars_written;
+  size_t rewind = kMaxCommentSize - chars_written - 1;
   arena_->Rewind(rewind);
   Instr* i = AppendInstr(OPCODE_COMMENT_info, 0);
   i->src1.offset = (uint64_t)p;