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| author | Kimplul <kimi.h.kuparinen@gmail.com> | 2024-01-21 23:10:36 +0200 |
|---|---|---|
| committer | Kimplul <kimi.h.kuparinen@gmail.com> | 2024-01-21 23:10:36 +0200 |
| commit | a152fbd956cc9cb9c05a233abe004ba3d12767a0 (patch) | |
| tree | 458a7812ae3c4d5c4999d7f9650e2ee1c05c9ba6 /triscv/include | |
| parent | 910ad02d86672cc3020cc5df0fa451ef4dd69bfd (diff) | |
| download | tri-a152fbd956cc9cb9c05a233abe004ba3d12767a0.tar.gz tri-a152fbd956cc9cb9c05a233abe004ba3d12767a0.zip | |
start working on virtual memory
Diffstat (limited to 'triscv/include')
| -rw-r--r-- | triscv/include/triscv/common.h | 4 | ||||
| -rw-r--r-- | triscv/include/triscv/cpu.h | 3 | ||||
| -rw-r--r-- | triscv/include/triscv/csr.h | 6 | ||||
| -rw-r--r-- | triscv/include/triscv/mmu.h | 4 |
4 files changed, 14 insertions, 3 deletions
diff --git a/triscv/include/triscv/common.h b/triscv/include/triscv/common.h index 865f6e5..4f23edc 100644 --- a/triscv/include/triscv/common.h +++ b/triscv/include/triscv/common.h @@ -4,8 +4,8 @@ #include <tri.h> #include <stdint.h> -typedef uint64_t vm_t; -typedef uint64_t pm_t; +typedef int64_t vm_t; +typedef int64_t pm_t; /* forward declarations */ struct cpu; diff --git a/triscv/include/triscv/cpu.h b/triscv/include/triscv/cpu.h index 05f8b78..aedd1df 100644 --- a/triscv/include/triscv/cpu.h +++ b/triscv/include/triscv/cpu.h @@ -11,4 +11,7 @@ void cpu_destroy(struct cpu *cpu); * update after each cycle? */ void cpu_run(struct cpu *cpu, vm_t start); +void set_csr(struct cpu *cpu, long i, tri_t t); +tri_t get_csr(struct cpu *cpu, long i); + #endif diff --git a/triscv/include/triscv/csr.h b/triscv/include/triscv/csr.h index a805702..0ca03a3 100644 --- a/triscv/include/triscv/csr.h +++ b/triscv/include/triscv/csr.h @@ -2,7 +2,11 @@ #define TRISCV_CSR_H /* first trit is sleep mode, R/W, second trit shutdown, R/W */ -#define CSR_MPOWER 0 +#define CSR_MPOWER -9841 #define RW_MPOWER 0b1111 +#define CSR_SATPP -3280 +#define CSR_SATPO -3279 +#define CSR_SATPN -3278 + #endif diff --git a/triscv/include/triscv/mmu.h b/triscv/include/triscv/mmu.h index c885814..100d9ac 100644 --- a/triscv/include/triscv/mmu.h +++ b/triscv/include/triscv/mmu.h @@ -4,6 +4,8 @@ #include <triscv/common.h> #include <triscv/cpu.h> +#define BASE_PAGE_SIZE 19683 + typedef void (*dev_write1_t)(struct cpu *cpu, void *dev, pm_t addr, tri_t t); typedef void (*dev_write3_t)(struct cpu *cpu, void *dev, pm_t addr, tri_t t); typedef tri_t (*dev_read1_t)(struct cpu *cpu, void *dev, pm_t addr); @@ -37,4 +39,6 @@ tri_t mmu_read3(struct cpu *cpu, struct mmu *mmu, vm_t addr); void mmu_write1(struct cpu *cpu, struct mmu *mmu, vm_t addr, tri_t t); void mmu_write3(struct cpu *cpu, struct mmu *mmu, vm_t addr, tri_t t); +tri_t mmu_read_pc(struct cpu *cpu, struct mmu *mmu, vm_t addr); + #endif |