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[/] [neorv32/] [trunk/] [sw/] [lib/] [source/] [neorv32_cpu.c] - Diff between revs 15 and 16
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| Rev 15 |
Rev 16 |
| Line 240... |
Line 240... |
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/**********************************************************************//**
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/**********************************************************************//**
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* Switch from privilege mode MACHINE to privilege mode USER.
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* Switch from privilege mode MACHINE to privilege mode USER.
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*
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*
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* @note This function requires the U extension to be implemented.
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* @note This function requires the U extension to be implemented.
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* @note Maybe you should do a fencei after this.
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**************************************************************************/
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**************************************************************************/
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void __attribute__((naked)) neorv32_cpu_goto_user_mode(void) {
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void __attribute__((naked)) neorv32_cpu_goto_user_mode(void) {
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register uint32_t mask = (1<<CPU_MSTATUS_MPP_H) | (1<<CPU_MSTATUS_MPP_L);
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register uint32_t mask = (1<<CPU_MSTATUS_MPP_H) | (1<<CPU_MSTATUS_MPP_L);
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mask = ~mask;
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mask = ~mask;
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