36 lines
681 B
C
36 lines
681 B
C
#include "ibex_system.h"
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void __enable_irqs(void) {
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__csrs("mstatus", 0x08);
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}
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void __disable_irqs(void) {
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__csrc("mstatus", 0x08);
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}
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void __enable_irqn(int irq_number) {
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__csrs("mie", (1U << irq_number));
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}
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void __enable_mcount(void) {
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// CY bit in mcountinhibit
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// RISC-V GCC has not implement this CSR name for now.
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__csrc("0x320", 0x01);
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}
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void __disable_mcount(void) {
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// Same as above.
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__csrs("0x320", 0x01);
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}
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uint64_t __read_mcycle(void) {
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uint32_t mcycleh = 0;
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uint32_t mcycle = 0;
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__csrr("mcycle", mcycle);
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__csrr("mcycleh", mcycleh);
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uint64_t ret = (uint64_t)mcycleh << 32;
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ret |= mcycle;
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return ret;
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} |