Danny Lau wrote;

> this time it is a character string: *p++ = "1234567890abcdef"[ul % base];
> in that lib function. The MCU cann't get correct byte-data and raise an
> Undefine instruction error.

0. nm -Bon
1. hexdump -C
2. objdump --disassemble

objdump might make mis-interpretation since it has no clue about how
the target binary is made for the specific CPU nature.

Toru Nishimura/ALKYL Technology