76 lines
1.6 KiB
C
76 lines
1.6 KiB
C
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#include "stdio.h"
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#include "errno.h"
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#include "stdlib.h"
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#include "string.h"
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#include "../main.h"
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#include "../riscv_cpu/riscv.h"
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// cpu外设
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#include "../riscv_cpu/print.h"
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#include "../riscv_cpu/timer.h"
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long get_file_size(FILE *stream)
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{
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long file_size = -1;
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long cur_offset = ftell(stream); // 获取当前偏移位置
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if (cur_offset == -1) {
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printf("ftell failed :%s\n", strerror(errno));
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return -1;
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}
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if (fseek(stream, 0, SEEK_END) != 0) { // 移动文件指针到文件末尾
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printf("fseek failed: %s\n", strerror(errno));
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return -1;
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}
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file_size = ftell(stream); // 获取此时偏移值，即文件大小
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if (file_size == -1) {
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printf("ftell failed :%s\n", strerror(errno));
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}
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if (fseek(stream, cur_offset, SEEK_SET) != 0) { // 将文件指针恢复初始位置
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printf("fseek failed: %s\n", strerror(errno));
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return -1;
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}
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return file_size;
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}
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riscv_t riscv = { 0 };
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int thread_fun(void* t)
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{
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int argc;
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char** argv;
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argc = get_argv(&argv);
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char *bin_name="riscv.bin";
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if(argc>1){
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bin_name=argv[1];
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}
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printf("riscv start\n");
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FILE *file=fopen(bin_name, "rb" );
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if(file==NULL)
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{
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printf("open file %s error\n",bin_name);
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return -1;
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}
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riscv.rom_size = get_file_size(file);
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printf("rom size: %d\n", riscv.rom_size);
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riscv.rom = calloc((riscv.rom_size + 3) / 4, 4);
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fread(riscv.rom, 1, riscv.rom_size, file);
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fclose(file);
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riscv_register_device(&riscv, print_dev());
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riscv_register_device(&riscv, timer_dev());
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riscv_init(&riscv, riscv.rom, 0x80000000, riscv.rom_size);
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riscv_device_init(&riscv);
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riscv_run(&riscv);
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return 0;
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}
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