2024-10-25 17:46:21 +08:00
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2024-10-28 15:51:12 +08:00
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2025-02-03 14:56:04 +08:00
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#include "tl2cdr.h"
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2024-10-28 18:01:25 +08:00
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.extern main
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2025-02-03 14:56:04 +08:00
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.extern int_svr_code
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.extern plic_claim
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2025-02-02 20:19:19 +08:00
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.globl _prog_start
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2024-10-28 18:01:25 +08:00
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.section .text.init
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_prog_start:
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2025-01-15 15:44:29 +08:00
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li x1, 0
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li x2, 0
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li x3, 0
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li x4, 0
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li x5, 0
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li x6, 0
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li x7, 0
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li x8, 0
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li x9, 0
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li x10, 0
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li x11, 0
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li x12, 0
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li x13, 0
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li x14, 0
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li x15, 0
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2025-02-03 14:56:04 +08:00
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#ifdef __RV32I_MARCH__
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2025-01-15 15:44:29 +08:00
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li x16, 0
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li x17, 0
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li x18, 0
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li x19, 0
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li x20, 0
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li x21, 0
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li x22, 0
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li x23, 0
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li x24, 0
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li x25, 0
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li x26, 0
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li x27, 0
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li x28, 0
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li x29, 0
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li x30, 0
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li x31, 0
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2025-02-03 14:56:04 +08:00
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#endif
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li sp, 0x40011000
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2025-02-10 00:03:16 +08:00
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li a0, 0
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2025-02-03 14:56:04 +08:00
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2025-02-10 00:03:16 +08:00
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lui t0, %hi(plic_claim)
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lw a1, %lo(plic_claim)(t0)
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2025-02-03 14:56:04 +08:00
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call int_svr_code
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mv t0, a0 #这里选择不同的trap_entry服务函数,这个是RV32I的代码
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2025-01-15 15:44:29 +08:00
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2025-01-27 21:48:17 +08:00
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csrw mtvec, t0
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li t0, 1 << 11
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csrw mie, t0
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csrr t0, mstatus
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ori t0, t0, 1<<3
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csrw mstatus, t0
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2024-10-28 18:01:25 +08:00
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call main
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2024-10-28 15:51:12 +08:00
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2024-10-28 18:01:25 +08:00
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ecall
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2024-10-28 15:51:12 +08:00
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