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collapseos/blk/091

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Refer to stable wordref by direct offset in "hot zone" immediates Previously, it was impossible to cross-compile Collapse OS from a binary-offsetted Collapse OS because stable ABI wordrefs would have a wrongly offsetted address. This solves the problem by replacing those wordrefs by direct, hardcoded stable ABI offset references.
2020-07-05 21:09:11 +10:00
Stable ABI
Across all architectures, some offset are referred to by off-
sets that don't change (well, not without some binary manipu-
lation). Here's the complete list of these references:
04 BOOT addr 06 (uflw) addr 08 LATEST
cvm: implement stack overflow error condition
2020-08-08 11:57:25 +10:00
13 (oflw) addr 2b (s) wordref 33 2>R wordref
42 EXIT wordref 53 (br) wordref 67 (?br) wordref
80 (loop) wordref bf (n) wordref
Refer to stable wordref by direct offset in "hot zone" immediates Previously, it was impossible to cross-compile Collapse OS from a binary-offsetted Collapse OS because stable ABI wordrefs would have a wrongly offsetted address. This solves the problem by replacing those wordrefs by direct, hardcoded stable ABI offset references.
2020-07-05 21:09:11 +10:00
cvm: implement stack overflow error condition
2020-08-08 11:57:25 +10:00
BOOT, (uflw) and (oflw) exist because they are referred to
before those words are defined (in core words). LATEST is a
critical part of the initialization sequence.
Refer to stable wordref by direct offset in "hot zone" immediates Previously, it was impossible to cross-compile Collapse OS from a binary-offsetted Collapse OS because stable ABI wordrefs would have a wrongly offsetted address. This solves the problem by replacing those wordrefs by direct, hardcoded stable ABI offset references.
2020-07-05 21:09:11 +10:00
(cont.)
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