
© G.N. Khan ARM Processors/Cores – EE8205: Embedded Computer Systems Page: 5
ARM Instruction Sets
ARM (32 bit) now referred as AArch32
Thumb (16 bit)
Thumb2: Cortex-Mx processors.
Cortex-R, A have Thumb2 + ARM.
A64 (64 bit) referred as AArch64
ARM now called AArch32
Thumb-2
Thumb (actually includes all ARM 32 bit instructions)
A64 AArch64
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