Summary

• Fix IBM 5170's memory size choices
• Add the IBM 32k Memory Expansion Option
• Add the IBM 64K Memory Expansion Option
• Correct existing IBM Memory to match the 64/256K Memory Expansion option
• Add the IBM PC/AT 128KB Memory Expansion Option

Checklist

• Closes #xxx
• I have discussed this with core contributors already
• This pull request requires changes to the ROM set
  • I have opened a roms pull request - https://github.com/86Box/roms/pull/changeme/

References

None