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thumb long branch offset is signed

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This commit is contained in:
Matthew Berry 2020-09-30 00:00:09 -07:00
parent f230348f75
commit e4d98a3970
1 changed files with 2 additions and 1 deletions
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src/crab/thumb/long_branch_link.cr
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@ -7,7 +7,8 @@ module THUMB
@r[15], @r[14] = @r[14], @r[15] - 1
clear_pipeline
else
@r[14] = (offset << 12) + @r[15]
offset = (offset << 5).to_i16! >> 5 # todo make this just bit math
@r[14] = @r[15] &+ (offset << 12)
end
end
end