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update Demo-Build/RISC-V32/readme.txt.
Signed-off-by: 零中断延迟的RTOS <cosyos@139.com>
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@@ -153,7 +153,7 @@ handle_reset:
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li t0, (3 << 13) | (3 << 11) | (1 << 7) | (1 << 3)
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csrw mstatus, t0
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/*
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0x804
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HWSTKOVEN:硬件压栈溢出后中断使能
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PMTCFG: 中断嵌套深度
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@@ -165,4 +165,5 @@ FS: 浮点单元状态
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MPP: 进中断前特权模式
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MPIE:进中断之前中断使能状态
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MIE: 机器模式中断使能
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*/
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