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this required adding a new magic-comment command, drop-subitem, because there's a couple cases, in indexed addressing mode helpers, where a hardcoded register value is used as part of preparing an sib word, and that value shouldn't become a subitem for the assembly word that calls the helper.
notably, a lot of the disp8 and indexed assembly words had incorrect parameter counts that needed adjusting
parameter ORDERS still need a close read to make sure they're correct. also, as future work, substring entries should be renamed to subitem entries.
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Change-Id: I419243855751416377d0ea0c5062fa1ba9e62a8d
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and use it in a couple places in amd64.e where it's needed
Change-Id: Id73dcd13f08c03aa02ac09e45ab034fcd90f2569
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add a provide-decimal variant of the magic-comment provide command family
note that the fields are all printed in a wrong order, at present
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Change-Id: I01f5cbb86f61e78ce652c54fc8b29b88efd1b2b6
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additionally, handle many (not yet all) of the keywords used by amd64 words
this exposed an existing flaw in the metadata entry processing, which is now fixed as well. to wit: it's common for provide-substring entries to come after the comment entries they go with in the entry array, but this is valid because adjust-length commands can edit the length field of the comment entry afterwards, and the comment entry will be moved to after the provide-substring entry based on its final length, but this can't happen if the adjust-length array isn't able to find the comment entry it goes with, which may not be the most recent entry. so, the adjust-length command needs to scan backwards to find the most recent comment entry, not just the most recent entry.
confused? don't worry... this CL includes documentation. wow. that was a lot.
Change-Id: I01c574fca020fd2e3adaf335267264fdbc8b87f1
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Change-Id: Ibdc4e05f8c63f0b4b6b8e504f89e053e6cd3a912
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yay!
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Change-Id: Ib54458c2466362391cc8724ad8af32f03a869e03
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also add logic to output newlines at the start of these comments
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Change-Id: I4c3ce99c264e7d02150cdf2b40d486e925b5fb72
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also due to @atax1a@infosec.exchange
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Change-Id: I2e7797772c31fb11decf2a9de65c0e802ca5697a
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this worked by coincidence since it's only ever called in one place, to encode :eax, whose encoding happens to be 0. oops.
thanks to @atax1a@infosec.exchange for spotting this
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Change-Id: I4cddbcd370a5d0c7db2f8733431bfda388022a22
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Change-Id: Ice00213f2e4b79f9aa44e6ccc5a70d951f7f762d
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so the TODOs are unneeded
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Change-Id: I13d1316d22b52238076d6f17d05062671e4724e4
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Change-Id: I02af0267657cf21fcf4e4d79457645da42f6798d
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also added some instructions it needed
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Change-Id: Ia35280e2696167eb0662a5c3a9dc47840438da56
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this turns out to be fairly involved. hex bootstrap can't come fast enough ;)
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Change-Id: Ide5d2207d745ad07c40d3c9f457cd6b491bfbcf0
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so it's all just high-level flow control now, which makes it load in itself
the output isn't identical on the first self-compilation, but it converges on the second
with this, it is officially self-hosting. WOW.
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Change-Id: Ic14de1dae209b200cada269b07c3826c86fa494f
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wow!!!!!! wow
making this work required implementing comma and keyword in the log-load transform
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Change-Id: If888d89c23389720840b49b72478e4826a15a269
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also said feature seems to work, which is flatly astonishing
just a little more now...
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Change-Id: I1bda7e99e524ac73a761859e86e01251e7d17525
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so okay, now all the machine code stuff is implemented and it builds without crashing
the generated executable still crashes though, but this was enough work that it's getting a celebratory check-in
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Change-Id: I201e6912253647da58ef3537c735b478b0dca9fb
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