.extern main
.extern plic_handle
.globl prog_start
.section .text.init


_prog_start:



	li x1,  0
	li x2,  0
	li x3,  0
	li x4,  0
	li x5,  0
	li x6,  0
	li x7,  0
	li x8,  0
	li x9,  0
	li x10, 0
	li x11, 0
	li x12, 0
	li x13, 0
	li x14, 0
	li x15, 0
	li x16, 0
	li x17, 0
	li x18, 0
	li x19, 0
	li x20, 0
	li x21, 0
	li x22, 0
	li x23, 0
	li x24, 0
	li x25, 0
	li x26, 0
	li x27, 0
	li x28, 0
	li x29, 0
	li x30, 0
	li x31, 0

	la t0, trap_entry
	csrw mtvec, t0
	li t0, 1 << 11
	csrw mie, t0

	li sp, 0x40011000

	csrr t0, mstatus
	ori t0, t0, 1<<3
	csrw mstatus, t0

	call main

	ecall



.balign 32
.section .trap_entry, "ax", %progbits
trap_entry:

	addi	sp,sp,-136
	sw	ra,4(sp)
	sw	sp,8(sp)
	sw	gp,12(sp)
	sw	tp,16(sp)
	sw	t0,20(sp)
	sw	t1,24(sp)
	sw	t2,28(sp)
	sw	s0,32(sp)
	sw	s1,36(sp)
	sw	a0,40(sp)
	sw	a1,44(sp)
	sw	a2,48(sp)
	sw	a3,52(sp)
	sw	a4,56(sp)
	sw	a5,60(sp)
	sw	a6,64(sp)
	sw	a7,68(sp)
	sw	s2,72(sp)
	sw	s3,76(sp)
	sw	s4,80(sp)
	sw	s5,84(sp)
	sw	s6,88(sp)
	sw	s7,92(sp)
	sw	s8,96(sp)
	sw	s9,100(sp)
	sw	s10,104(sp)
	sw	s11,108(sp)
	sw	t3,112(sp)
	sw	t4,116(sp)
	sw	t5,120(sp)
	sw	t6,124(sp)




    csrr t0, mstatus            # 读取 mstatus 寄存器
    andi t0, t0, ~(1 << 3)      # 清除 MIE 位 (全局中断禁用)
    csrw mstatus, t0            # 写回 mstatus 寄存器



	call plic_handle

	csrr t0, mstatus
	ori t0, t0, 1<<3
	csrw mstatus, t0





	lw	ra,4(sp)
	lw	sp,8(sp)
	lw	gp,12(sp)
	lw	tp,16(sp)
	lw	t0,20(sp)
	lw	t1,24(sp)
	lw	t2,28(sp)
	lw	s0,32(sp)
	lw	s1,36(sp)
	lw	a0,40(sp)
	lw	a1,44(sp)
	lw	a2,48(sp)
	lw	a3,52(sp)
	lw	a4,56(sp)
	lw	a5,60(sp)
	lw	a6,64(sp)
	lw	a7,68(sp)
	lw	s2,72(sp)
	lw	s3,76(sp)
	lw	s4,80(sp)
	lw	s5,84(sp)
	lw	s6,88(sp)
	lw	s7,92(sp)
	lw	s8,96(sp)
	lw	s9,100(sp)
	lw	s10,104(sp)
	lw	s11,108(sp)
	lw	t3,112(sp)
	lw	t4,116(sp)
	lw	t5,120(sp)
	lw	t6,124(sp)
	addi	sp,sp,136



	mret