USR_MODE
regs->ARM_cpsr = USR_MODE; \
if (mode == USR_MODE)
regs->ARM_cpsr |= USR_MODE;
.cpsr_val = USR_MODE,
cpsr = (cpsr & ~MODE_MASK) | USR_MODE;
.cpsr_val = USR_MODE,
.cpsr_val = USR_MODE,
.cpsr_val = USR_MODE,