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Line 50... |
uint64_t neorv32_cpu_get_instret(void);
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uint64_t neorv32_cpu_get_instret(void);
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void neorv32_cpu_set_minstret(uint64_t value);
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void neorv32_cpu_set_minstret(uint64_t value);
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uint64_t neorv32_cpu_get_systime(void);
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uint64_t neorv32_cpu_get_systime(void);
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void neorv32_cpu_delay_ms(int16_t time_ms);
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void neorv32_cpu_delay_ms(int16_t time_ms);
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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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int neorv32_cpu_atomic_cas(uint32_t addr, uint32_t expected, uint32_t desired);
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uint32_t neorv32_cpu_pmp_get_num_regions(void);
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uint32_t neorv32_cpu_pmp_get_num_regions(void);
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uint32_t neorv32_cpu_pmp_get_granularity(void);
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uint32_t neorv32_cpu_pmp_get_granularity(void);
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int neorv32_cpu_pmp_configure_region(uint32_t index, uint32_t base, uint32_t size, uint8_t config);
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int neorv32_cpu_pmp_configure_region(uint32_t index, uint32_t base, uint32_t size, uint8_t config);
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uint32_t neorv32_cpu_hpm_get_counters(void);
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uint32_t neorv32_cpu_hpm_get_counters(void);
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uint32_t neorv32_cpu_hpm_get_size(void);
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uint32_t neorv32_cpu_hpm_get_size(void);
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*
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*
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* @note An unaligned access address will raise an alignment exception.
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* @note An unaligned access address will raise an alignment exception.
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*
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*
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* @param[in] addr Address (32-bit).
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* @param[in] addr Address (32-bit).
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* @param[in] wdata Data word (32-bit) to store.
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* @param[in] wdata Data word (32-bit) to store.
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* @return Operation status (32-bit).
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**************************************************************************/
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inline uint32_t __attribute__ ((always_inline)) neorv32_cpu_store_conditional(uint32_t addr, uint32_t wdata) {
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#if defined __riscv_atomic || defined __riscv_a
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register uint32_t reg_addr = addr;
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register uint32_t reg_data = wdata;
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register uint32_t reg_status;
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asm volatile ("sc.w %[status], %[da], (%[ad])" : [status] "=r" (reg_status) : [da] "r" (reg_data), [ad] "r" (reg_addr));
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return reg_status;
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#else
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return 1; // always failing
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#endif
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}
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/**********************************************************************//**
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* Conditional store unsigned word to address space if atomic access reservation is valid.
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*
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* @note An unaligned access address will raise an alignment exception.
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*
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* @param[in] addr Address (32-bit).
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* @param[in] wdata Data word (32-bit) to store.
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**************************************************************************/
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**************************************************************************/
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inline void __attribute__ ((always_inline)) neorv32_cpu_store_unsigned_word(uint32_t addr, uint32_t wdata) {
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inline void __attribute__ ((always_inline)) neorv32_cpu_store_unsigned_word(uint32_t addr, uint32_t wdata) {
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register uint32_t reg_addr = addr;
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register uint32_t reg_addr = addr;
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register uint32_t reg_data = wdata;
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register uint32_t reg_data = wdata;
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asm volatile ("sb %[da], 0(%[ad])" : : [da] "r" (reg_data), [ad] "r" (reg_addr));
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asm volatile ("sb %[da], 0(%[ad])" : : [da] "r" (reg_data), [ad] "r" (reg_addr));
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}
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}
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/**********************************************************************//**
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/**********************************************************************//**
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* Load unsigned word from address space and make reservation for atomic access.
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*
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* @note An unaligned access address will raise an alignment exception.
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*
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* @param[in] addr Address (32-bit).
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* @return Read data word (32-bit).
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**************************************************************************/
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inline uint32_t __attribute__ ((always_inline)) neorv32_cpu_load_reservate_word(uint32_t addr) {
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register uint32_t reg_addr = addr;
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register uint32_t reg_data;
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#if defined __riscv_atomic || defined __riscv_a
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asm volatile ("lr.w %[da], 0(%[ad])" : [da] "=r" (reg_data) : [ad] "r" (reg_addr));
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#else
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asm volatile ("lw %[da], 0(%[ad])" : [da] "=r" (reg_data) : [ad] "r" (reg_addr));
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#endif
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return (uint32_t)reg_data;
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}
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/**********************************************************************//**
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* Load unsigned word from address space.
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* Load unsigned word from address space.
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*
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*
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* @note An unaligned access address will raise an alignment exception.
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* @note An unaligned access address will raise an alignment exception.
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*
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*
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* @param[in] addr Address (32-bit).
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* @param[in] addr Address (32-bit).
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