.section ".text.init"

.globl _start
_start:
        csrw       satp, zero
        csrw       sie, zero
        csrw       sip, zero

        .option push
        .option norelax
        la         gp, __global_pointer$
        .option pop

        la         sp, __stack_start
        li         t1, PAGE_SIZE 
        mul        t1, t1, a0
        add        sp, sp, t1

        li         a2, 1
        lla        a3, _boot_hart
        amoswap.w  a3, a2, (a3)
        bnez a3,   _spin

        la         a2, __bss_start
        la         a3, __bss_end
1:
        sd	   zero, (a2)
        addi       a2, a2, __SIZEOF_POINTER__
        blt        a2, a3, 1b 
        
        call       init


_spin:
	wfi
	j _spin

.section ".data"
_boot_hart: .word 0