ARM Processor Instruction Set
ARM Processor Instruction Set
ARM Processor Instruction Set
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<strong>ARM</strong> <strong>Processor</strong> <strong>Instruction</strong> <strong>Set</strong><br />
5.15 Undefined instruction<br />
31 28 27 25 24<br />
5 4 3<br />
0<br />
Cond<br />
011 xxxxxxxxxxxxxxxxxxxx<br />
1 xxxx<br />
5.15.1 Assembler syntax<br />
Figure 5-26: Undefined instruction<br />
The instruction is only executed if the condition is true. The various conditions are<br />
defined at the beginning of this chapter. The instruction format is shown in ➲Figure 5-<br />
26: Undefined instruction on page 5-51.<br />
If the condition is true, the undefined instruction trap will be taken.<br />
At present the assembler has no mnemonics for generating this instruction. If it is<br />
adopted in the future for some specified use, suitable mnemonics will be added to the<br />
assembler. Until such time, this instruction shall not be used.<br />
Preliminary - Unrestricted<br />
<strong>ARM</strong>7500 Data Sheet<br />
<strong>ARM</strong> DDI 0050C<br />
5-51
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