a20 144 arch/c6x/include/uapi/asm/ptrace.h REG_PAIR(a21, a20); a20 20 arch/c6x/kernel/asm-offsets.c OFFSET(REGS_A20, pt_regs, a20); a20 47 arch/c6x/kernel/signal.c COPY(a20); COPY(a21); COPY(a22); COPY(a23); a20 112 arch/c6x/kernel/signal.c COPY(a20); COPY(a21); COPY(a22); COPY(a23); a20 54 arch/c6x/kernel/traps.c pr_err("A20: %08lx B20: %08lx\n", regs->a20, regs->b20);