[^:]*: Assembler messages:
[^:]*:3: Warning: This instruction may be unpredictable if executed on M-profile cores with interrupts enabled.
[^:]*:4: Warning: This instruction may be unpredictable if executed on M-profile cores with interrupts enabled.
[^:]*:7: Error: Thumb does not support register indexing with writeback -- `ldr r1,\[r0,r1\]!'