5983 - fix an emulator bounds-check bug

It was possible for an instruction to write out of bounds of the memory
data structure. Most of the time this worked fine. However if the block
ever got resized and moved the out-of-bounds bytes no longer went along.

1 files changed, 1 insertions, 1 deletions

diff --git a/014indirect_addressing.cc b/014indirect_addressing.cc
index 9c50c129..19d4d509 100644
--- a/014indirect_addressing.cc
+++ b/014indirect_addressing.cc
@@ -818,7 +818,7 @@ case 0x8f: {  // pop stack into r/m32
     case 0: {
       trace(Callstack_depth+1, "run") << "pop into r/m32" << end();
       int32_t* dest = effective_address(modrm);
-      *dest = pop();
+      *dest = pop();  // Write multiple elements of vector<uint8_t> at once. Assumes sizeof(int) == 4 on the host as well.
       break;
     }
   }