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Commit Graph

4 Commits

Author SHA1 Message Date
Andy McFadden
38bc7721a4 Fix "goto address" for overlapping segments
If you have multiple overlapping segments (say, four 8KB chunks
that all load at $8000), and you use the "goto" command to jump
to address $8100, it should try to jump to that address within
whichever segment you happen to be working (based on the current
line selection).  If that address doesn't exist in the current
segment, it's okay to punt and jump to the first occurrence of that
address in the file.

The existing code was always jumping to the first instance.

(related to issue #98)
2021-07-30 14:40:17 -07:00
Andy McFadden
6ff349c2f6 Fix crashing bug in Goto
The application would crash if an invalid file offset was entered
(with "+xxxx").  This bug has been present since v1.0.
2020-01-24 15:25:01 -08:00
Andy McFadden
68c324bbe8 Label rework, part 4
Update the symbol lookup in EditInstructionOperand, EditDataOperand,
and GotoBox to correctly deal with non-unique labels.

This is a little awkward because we're doing lookups by name on
a non-unique symbol, and must resolve the ambiguity.  In the case of
an instruction operand that refers to an address this is pretty
straightforward.  For partial bytes (LDA #>:foo) or data directives
(.DD1 :foo) we have to take a guess.  We can probably make a more
informed guess than we currently are, e.g. the LDA case could find
the label that minimizes the adjustment, but I don't want to sink a
lot of time into this until I'm sure it'll be useful.

Data operands with multiple regions are something of a challenge,
but I'm not sure specifying a single symbol for multiple locations
is important.

The "goto" box just finds the match that's closest to the selection.
Unlike "find", it always grabs the closest, not the next one forward.
(Not sure if this is useful or confusing.)
2019-11-16 16:44:08 -08:00
Andy McFadden
c64f72d147 Move WPF code from SourceGenWPF to SourceGen 2019-07-20 13:28:37 -07:00