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gcc编译出来的utils.c中在gdb中单步执行会卡死在 " bne UtilsDelay\n"

alexking
Prodigy 80 points
void __attribute__((naked))
UtilsDelay(unsigned long ulCount)
{
__asm(" subs r0, #1\n"
" bne UtilsDelay\n"
" bx lr");
}
一旦执行了subs r0, #1\n"后就出现卡斯的情况