
© G.N. Khan ARM Processors/Cores – EE8205: Embedded Computer Systems Page: 24
ARM Registers
R0
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13: Stack Pointer (SP)
R14: Link Register (LR)
R15: Program Counter (PC)
Thumb
Mode:
8 general
purpose
registers
7 “high”
registers
r8-R12 only
accessible
with MOV,
ADD, or
CMP
ARM
Mode:
15 general
purpose
registers
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