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Diffstat (limited to 'subx/Readme.md')
| -rw-r--r-- | subx/Readme.md | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/subx/Readme.md b/subx/Readme.md index e86b16b8..78ff30e8 100644 --- a/subx/Readme.md +++ b/subx/Readme.md @@ -68,8 +68,17 @@ $ chmod +x ex1 $ ./ex1 ``` -I'm not building general infrastructure here for all of the x86 ISA and ELF -format. SubX is about programming with a small, regular subset of 32-bit x86: +There are a few such example programs here. At any commit an example's binary +should be identical bit for bit with the output of translating the .subx file. +The binary should also be natively runnable on a 32-bit Linux system. If +either of these invariants is broken it's a bug on my part. The binary should +also be runnable on a 64-bit Linux system. I can't guarantee it, but I'd +appreciate hearing if it doesn't run. + +However, there are a few more binaries in the teensy/ directory. They are not +guaranteed to be runnable by subx. I'm not building general infrastructure +here for all of the x86 ISA and ELF format. SubX is about programming with a +small, regular subset of 32-bit x86: * Only instructions that operate on the 32-bit E\*X registers. (No floating-point yet.) @@ -80,6 +89,9 @@ format. SubX is about programming with a small, regular subset of 32-bit x86: on unsigned integers) * Only relative jump instructions (with 8-bit or 16-bit offsets). +The ELF binaries generated are statically linked and missing a lot of features +as well. But they will run. + For more details on programming in this subset, consult the online help: ``` $ ./subx help |