Fujitsu MB90335 Series Hardware Manual page 82

MB90335 Series
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Hardware interrupt suppression of interrupt suppression instruction
Table 3.4-2 shows the hardware interrupt suppression instruction. If a hardware interrupt request is
generated during execution of the hardware interrupt suppression instruction, an interrupt is processed after
execution of the hardware interrupt suppression instruction and then other instruction.
Table 3.4-2 Hardware Interrupt Suppression Instruction
The instructions
which do not accept
the interrupt and
hold requests.
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Suppressing a hardware interrupt during execution of a software interrupt
When a software interrupt is activated, no other interrupt requests are acceptable to clear the I flag to "0".
CM44-10137-6E
Prefix code
(The command that delays the effect of prefix code)
PCB
DTB
ADB
SPB
CMR
NCC
FUJITSU MICROELECTRONICS LIMITED
CHAPTER 3 INTERRUPT
Interruption/holding control instruction
MOV ILM,#imm8
OR CCR,#imm8
AND CCR,#imm8
POPW PS
3.4 Hardware Interrupt
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