34 lines
849 B
C
34 lines
849 B
C
#include "emulator/csr.h"
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#include "emulator/hart.h"
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static uint32_t csr_cycle(Hart* hart, uint32_t v, enum CsrAction a)
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{
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return hart->instret & 0xFFFFFFFF;
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}
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static uint32_t csr_cycleh(Hart* hart, uint32_t v, enum CsrAction a)
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{
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return hart->instret >> 32;
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}
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static uint32_t csr_time(Hart* hart, uint32_t v, enum CsrAction a)
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{
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return hart->time & 0xFFFFFFFF;
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}
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static uint32_t csr_timeh(Hart* hart, uint32_t v, enum CsrAction a)
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{
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return hart->time >> 32;
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}
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void csr_init_unpriv_counter_timer(Hart* hart)
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{
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hart->csrs[CSR_CYCLE].action = csr_cycle;
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hart->csrs[CSR_CYCLEH].action = csr_cycleh;
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hart->csrs[CSR_INSTRET].action = csr_cycle;
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hart->csrs[CSR_INSTRETH].action = csr_cycleh;
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hart->csrs[CSR_TIME].action = csr_time;
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hart->csrs[CSR_TIMEH].action = csr_timeh;
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}
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