b13 140 arch/c6x/include/uapi/asm/ptrace.h REG_PAIR(b13, b12); b13 80 arch/c6x/kernel/asm-offsets.c OFFSET(REGS_B13, pt_regs, b13); b13 47 arch/c6x/kernel/traps.c pr_err("A13: %08lx B13: %08lx\n", regs->a13, regs->b13);