mirror of https://github.com/hsoft/collapseos.git
15 lines
586 B
Plaintext
15 lines
586 B
Plaintext
For backward labels, set happens before write. For forward
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labels, write happen before set. The write operation writes a
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dummy placeholder, and then the set operation writes the offset
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at that placeholder's address.
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Variable actions are expected to be called with labels in
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front of them. Example, "L2 FSET"
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About that "1 -": z80 relative jumps record "e-2", that is,
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the offset that *counts the 2 bytes of the jump itself*.
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Because we set the label *after* the jump OP1 itself, that's 1
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byte that is taken care of. We still need to adjust by another
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byte before writing the offset.
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