 Andrius Štikonas
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85e3b0caef
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Actually sub esp, 32 is only 3 bytes long, so undo some of the pop rax changes.
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2022-07-17 13:53:31 +01:00 |
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Andrius Štikonas
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bfb164eb68
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hex0.S: save another byte when accessing stack contents.
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2022-07-17 13:23:18 +01:00 |
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Andrius Štikonas
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d96dc0e322
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hex0.S: optimize setting some immediate values.
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2022-07-17 13:13:36 +01:00 |
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Andrius Štikonas
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e7bd0b67ab
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hex0.S: Use push rax to allocate stack space instead of sub rsp, 32.
Easier to encode to hex0 and also more efficient for smaller allocations
such as sub rsp, 16.
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2022-07-17 12:50:29 +01:00 |
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Andrius Štikonas
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1d3ea9e5c0
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hex0.S: use r14 to store system->boot->open_protocol rather than system->boot.
Also reuse r14 for rootdir and free up rsi for further optimizations.
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2022-07-17 12:30:29 +01:00 |
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Andrius Štikonas
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f5bae9d646
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hex0.S: more stack optimizations.
Pass function arguments with push opcodes which are shorter
than using e.g. "mov qword ptr [rsp+40], 1"
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2022-07-17 12:25:27 +01:00 |
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Andrius Štikonas
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555caea6c7
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hex0.S: move global variables to stack.
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2022-07-17 01:48:55 +01:00 |
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Andrius Štikonas
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71bca6e471
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hex0.S: backport some optimizations from stage0-posix-amd64.
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2022-07-16 20:09:53 +01:00 |
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Andrius Štikonas
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4afbfc56cc
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hex0.S: optimize read/write_byte functions.
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2022-07-16 01:06:47 +01:00 |
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Andrius Štikonas
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3e95bb7d48
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hex0.S: use ret rather than calling system->boot->exit()
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2022-07-15 23:09:35 +01:00 |
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Andrius Štikonas
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9895b0da06
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hex0.S: initial working version, still needs some optimizations.
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2022-07-15 22:37:45 +01:00 |
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Andrius Štikonas
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159d30e184
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hex0.S: open source file for reading.
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2022-07-15 00:43:57 +01:00 |
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Andrius Štikonas
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34060fc7e5
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hex0.S: open target file for writing.
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2022-07-14 22:55:42 +01:00 |
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Andrius Štikonas
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8a344b7275
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hex0.S: add argument parsing and open root device.
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2022-07-13 22:47:20 +01:00 |
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Andrius Štikonas
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d0e6bdb758
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hex0.S: implement open_protocol function.
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2022-07-11 01:27:00 +01:00 |
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Andrius Štikonas
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9cb1d5b7f0
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hex0.S: print hello world as a test.
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2022-07-10 22:11:32 +01:00 |
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Andrius Štikonas
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081a890e05
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Add a skeleton file for eventual assembly port of hex0.
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2022-07-10 16:24:23 +01:00 |