IFF <- 0
DI
None
| b7 | b6 | b5 | b4 | b3 | b2 | b1 | b0 | |
|---|---|---|---|---|---|---|---|---|
| 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | $F3 |
DI disables the maskable interrupt by resetting the interrupt enable flip-flops (IFF1 and IFF2).
NOTE: This instruction disables the maskable interrupt during its execution.
None.
When the CPU executes the instruction
DI
the maskable interrupt is disabled until it is subsequently re-enabled by an EI instruction. The CPU does not respond to an Interrupt Request (INT) signal.