Remaining bits in swi backtracked by programmer to

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Unformatted text preview: WI has 8-bit opcode and remaining bits are not used by processor Give single vector address of the ISR for SWI. Remaining bits in SWI backtracked by programmer to compute ISR and ISR parameter pointers This unique feature permits handling large number of SWIs required in the OS and application functions or threads or tasks 2008 Chapter-2 L13: "Embedded Systems - " , Raj Kamal, Publs.: McGraw-Hill Education 14 Summary We learnt • ARM Architecture Instruction set • Byte, half word and 32-bit data types • 16-bit Thumb and 32-bit ARM mode instructions • world length Data transfer, arithmetic, logic instructions • Program flow control instructions • Software interrupt instruction 2008 Chapter-2 L13: "Embedded Systems - " , Raj Kamal, Publs.: McGraw-Hill Education 15 End of Lesson 13 of Chapter 2 2008 Chapter-2 L13: "Embedded Systems - " , Raj Kamal, Publs.: McGraw-Hill Education 16...
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