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This also forced us to add the current working directory to the
`Assembler::assemble` public function, as otherwise this control
statement and others wouldn't know how to resolve relative paths.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
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There were a lot of assumptions on the assembler that stemmed from a
fundamental missunderstanding from my side on how segments are laid out
on the final file. This commit is the first step to address this.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
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Instead, use a new enum type to identify the control statements that we
actually support. This way the assembler is more easily aware on the
control that it's dealing with, and can be more sure on certain aspects
of the implementation on control support.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
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As a way to firstly adapt on the latest changes from the parser since
184c39579227 ("Re-work the parser from scratch"), the assembler had to
leave out some features on 16114b2ca358 ("Adapt the assembler to the
changes on the parser"). This commit reintroduces support for settings
labels, variables and referencing them, while also providing a more
robust implementation at that.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
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As of 184c39579227 ("Re-work the parser from scratch") the parser has a
proper AST, and the assembler has to traverse it accordingly.
Moreover, the assembler has been stripped from a lot of unneeded memory
allocations and it's overall more keen on using mere references when
possible.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
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The initial implementation was incredibly naive on how complex an
assembler can actually be. Because of this, it never bothered to define
and produce a proper AST, and hence it was overall extremely fragile on
(not so) corner cases.
This commit re-writes everything from scratch for the parser, and it
should really be the last fundamental change to the parser other than
minor additions/features here and there.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
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This is a bare bones implementation of it, and there's a lot of nuance
that it's being missed, but at least the fundamentals have been
implemented already.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
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A lot is missing and there is a long road ahead to make the assembler
even work.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
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