/* * In some error cases in our loadagent code we have no better course * of action available than to halt in a tight loop. We define _exit() * to do the latter. We have defined some codes for the argument value * that goes into R0; if you manage to hook up JTAG and get it to work, * you might be able to see what went wrong. */#define HALTCODE_MAINEXITED 0x40#define HALTCODE_INVALIDUART 0x41