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removed software interrupt function

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stnolting 2020-07-13 20:05:02 +02:00
parent 9792a59a04
commit 6f68b6461b
1 changed files with 0 additions and 17 deletions
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17
sw/lib/include/neorv32_cpu.h
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@ -117,23 +117,6 @@ inline void __attribute__ ((always_inline)) neorv32_cpu_dint(void) {
}
/**********************************************************************//**
* Trigger machine software interrupt.
*
* @note The according IRQ has to be enabled via neorv32_cpu_irq_enable(uint8_t irq_sel) and
* global interrupts must be enabled via neorv32_cpu_eint(void) to trigger an IRQ via software.
* The MSI becomes active after 3 clock cycles.
**************************************************************************/
inline void __attribute__ ((always_inline)) neorv32_cpu_sw_irq(void) {
asm volatile ("csrrsi zero, mip, %0" : : "i" (1 << CPU_MIP_MSIP));
// the MSI becomes active 3 clock cycles afters issueing
asm volatile ("nop"); // these nops are not required, they just make sure the MSI becomes active
asm volatile ("nop"); // before the "real" next operation is executed
}
/**********************************************************************//**
* Trigger breakpoint exception (via EBREAK instruction).
**************************************************************************/