
DI Instruction UM018809-0611
98
ZNEO
®
CPU Core
User Manual
DI
Definition
Disable Interrupts
Syntax
DI
Operation
FLAGS[0]
0
Description
The Master Interrupt Enable (IRQE) bit in the Flags register is cleared to 0 to prevent the ZNEO
CPU from responding to interrupt requests.
Flags
Syntax and Opcodes
Example
Before:
IRQE=1 (Interrupt requests are enabled or disabled by their individual control
registers.)
DI ;Object code: FFFB
76543210
C Z S V B CIRQE IRQE
–––––––0
Legend
C = No change.
Z = No change.
S = No change.
V = No change.
B = No change.
CIRQE = No change.
IRQE = Cleared to 0.
Instruction, Operands Word 0 Word 1 Word 2
DI FFFBH
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