.section .init; .globl _start; .type _start,@function _start: .option push .option norelax la gp, __global_pointer$ .option pop la sp, _sp #ifdef SIMULATION /* clear sim result flags */ csrrwi x0, sstatus, 0x0 #endif /* Load data section */ la a0, _data_lma la a1, _data la a2, _edata bgeu a1, a2, 2f 1: lw t0, (a0) sw t0, (a1) addi a0, a0, 4 addi a1, a1, 4 bltu a1, a2, 1b 2: /* Clear bss section */ la a0, __bss_start la a1, _end bgeu a0, a1, 2f 1: sw zero, (a0) addi a0, a0, 4 bltu a0, a1, 1b 2: /* set exception and interrupt entry */ la a0, trap_entry csrw mtvec, a0 li a0, 0 li a1, 0 call main loop: j loop