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为什么在monitor.c文件当中没有包含cpu.h的文件,cpu也没有在monitor.c文件中声明是外部变量,它也可以成功编译,这是编译器的原因吗 #120

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@mmjwxbc
#include <isa.h>
#include <memory/paddr.h>

// this is not consistent with uint8_t
// but it is ok since we do not access the array directly
static const uint32_t img [] = {
  0x00000297,  // auipc t0,0
  0x00028823,  // sb  zero,16(t0)
  0x0102c503,  // lbu a0,16(t0)
  0x00100073,  // ebreak (used as nemu_trap)
  0xdeadbeef,  // some data
};

static void restart() {
  /* Set the initial program counter. */
  cpu.pc = RESET_VECTOR;

  /* The zero register is always 0. */
  cpu.gpr[0] = 0;
}

为什么在monitor.c文件当中没有包含cpu.h的文件,cpu也没有在monitor.c文件中声明是外部变量,它也可以成功编译,这是编译器的原因吗

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