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| author | nsfisis <nsfisis@gmail.com> | 2025-05-05 19:21:37 +0900 |
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| committer | nsfisis <nsfisis@gmail.com> | 2025-05-05 19:21:37 +0900 |
| commit | fdbae4406db4f0ae51f1d01053281295458b8963 (patch) | |
| tree | 4b70ec7587b9ed64e9a81481fc178202c0430b48 /README.md | |
| parent | 777fa18fe1c3e55a2845d15947ece03c489f950f (diff) | |
| download | P4Dcc-fdbae4406db4f0ae51f1d01053281295458b8963.tar.gz P4Dcc-fdbae4406db4f0ae51f1d01053281295458b8963.tar.zst P4Dcc-fdbae4406db4f0ae51f1d01053281295458b8963.zip | |
update readme
Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 8 |
1 files changed, 4 insertions, 4 deletions
@@ -1,8 +1,8 @@ # P4Dcc -P4Dcc is a tiny, but self-hosted C compiler. It takes C source code and compiles it to assembly language. For assembling and linking, I use gcc as-is. +P4Dcc is a tiny, but self-hosted C compiler. It takes C source code and compiles it to assembly language. For assembling and linking, it deletegates to gcc as-is. -This project was started to test the hypothesis: "Could a self-hostable C compiler be built in four days, if the feature set is carefully limited?" - "P4D" stands for the ISO 8601 notation meaning "four days." However, I actually completed the project by the morning of the third day. +This project was started to prove the hypothesis: "Could a self-hostable C compiler be built in four days, if the feature set is carefully limited?" - "P4D" stands for the ISO 8601 notation meaning "four days." However, I actually completed the project by the morning of the third day. The code is written following the instructions at https://www.sigbus.info/compilerbook, and several key design decisions were inspired by the book. @@ -32,7 +32,7 @@ $ just test-all # test all things, including binary equiality between generatio To meet the four-day goal, many design decisions were made to reduce complexity (ideas directly taken from https://www.sigbus.info/compilerbook are not listed): -* Simplify declaration syntax +* Simplified declaration syntax * No support for `typedef` * Structs always begin with `struct` keyword * No support for array types @@ -40,7 +40,7 @@ To meet the four-day goal, many design decisions were made to reduce complexity * All arrays are heap-allocated and accessed via pointers * No support for function types * Type information always precede the variable name -* Most syntax sugar is not implemented +* Minimal syntax sugar * No increment/decrement operators * ~~No compound assignment operators~~ * Implemented after self-hosting |