nachos代码阅读xq

1.宏总结：/threads/thread.h#defineMachineStateSize18#defineStackSize(4*1024)/threads/thread.cc#defineSTACK_FENCEPOST0xdeadbeef/userprog/addrspace.h#defineUserStackSize1024/userprog/bitmap.h#defineBitsInByte8#defineBitsInWord32/userprog/syscall.h#defineSC_Halt0#defineSC_Exit1#defineSC_Exec2#defineSC_Join3#defineSC_Create4#defineSC_Open5#defineSC_Read6#defineSC_Write7#defineSC_Close8#de...