Since commit 975af797f1e helper_fist_ST0() sets float_flag_invalid. -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1920602
Title: QEMU crash after a QuickBASIC program integer overflow Status in QEMU: Confirmed Bug description: A trivial program compiled with QuickBASIC 4.5 with integer overflow will crash QEMU when ran under MS-DOS 5.0 or FreeDOS 1.2: C:\KILLER>type killer.bas A% = VAL("99999"):PRINT A% C:\KILLER>killer.exe ** ERROR:../qemu-5.2.0/accel/tcg/tcg-cpus.c:541:tcg_handle_interrupt: assertion failed: (qemu_mutex_iothread_locked()) Aborted QEMU version v5.2, compiler for ARM, and started with command line: qemu-system-i386 -curses -cpu 486 -m 1 -drive dos.img The same test under Ubuntu QEMU and KVM/x86_64 (QEMU emulator version 4.2.1 (Debian 1:4.2-3ubuntu6.14)) will just silently hang the QEMU. On DOSBOX, the machine does not die and program outputs the value -31073. The EXE to reproduce the issue is attached. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1920602/+subscriptions