int1
Debug trap (interrupt 1)
Raises interrupt 1, the debug trap, using the one-byte encoding.
386 and later
CFPFAFZFSFTFIFDFOF –––––0●––
- ● set from the result
- 0 always 0
- – not changed
Forms
int1
Intel documents it for hardware debugging tools and recommends int3 for software breakpoints. Under Linux, a program that executes it receives SIGTRAP.