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Playing Super Mario on the Abstract Machine

#linux#ics91
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The author is discussing their experience with a project that involves running a Nintendo game on an Abstract Machine. They encountered two issues: the SIGSTKSZ parameter was not found, so they modified it to a fixed parameter, and the serial was not correct, so they made changes to the serial code.

Recently, I have been studying jyy's Computer System Fundamentals Exercise Course,
and when working on pa1, I came across a project that runs NES games.

Issues encountered:

  1. Unable to find SIGSTKSZ parameter

Modify SIGSTKSZ to a fixed parameter

//uint8_t sigstack[SIGSTKSZ];
uint8_t sigstack[8192];
  1. Incorrect serial

Modify nemu/src/device/serial.c#init_serial, it varies for each person, mine is 9.

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