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75d9e5ad52
- use patches instead of sed hacks. - comments for all patches, and each one separated. - apply patches as part of "rebuild" instead of in assemv7.
24 lines
1.1 KiB
Plaintext
24 lines
1.1 KiB
Plaintext
cold.patch -
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Sets the "cold" flag to one to build a kernel that bootstraps the
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root filesystem.
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fixV7div.patch
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The instruction
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mov $[systm-inode]\/2,sb0+4 / sets up initial buffers per
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assembles incorrectly with the v7 assembler we are using because
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it does an unsigned divide by two on a negative number. We patch
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the correct value "-109." in for the expression. This is fragile
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and will break if systm or inode move around due to code changes.
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vec0407.patch
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The v7 assembler builds an 0407 a.out file. The original sources
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used an 0405 a.out file in which the a.out header occupied the first
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six words of the text segment. The sources accomodate this in two
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ways 1) they comment out the first 3 vectors. 2) they have code
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which patches those first six vectors back to their proper values.
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When building with the v7 assembler the first work around will
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result in the other vectors having an incorrect offset. This patch
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just uncomments the first three vectors. This would not be necessary
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if we had a proper 0405 assembler.
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