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valdanylchuk
xcc700
C2025–2026
valdanylchuk / xcc700

xcc700

mini C compiler for esp32 / Xtensa

3Distinct people
3Mentions
0Explicit recommenders
251GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

mini C compiler for esp32 / Xtensa

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by week3 dated mentions

Observed mentions: 2025-12-26 15:07:01 UTC to 2026-03-15 19:32:23 UTC. Weeks start Monday, UTC.

012025-12-22 00:00:00 UTC to 2025-12-29 00:00:00 UTC (exclusive): 1 mentions; 1 submissions, 0 commentsDec 222025-12-29 00:00:00 UTC to 2026-01-05 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-01-05 00:00:00 UTC to 2026-01-12 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-01-12 00:00:00 UTC to 2026-01-19 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2026-01-19 00:00:00 UTC to 2026-01-26 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-01-26 00:00:00 UTC to 2026-02-02 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsJan 262026-02-02 00:00:00 UTC to 2026-02-09 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-09 00:00:00 UTC to 2026-02-16 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-16 00:00:00 UTC to 2026-02-23 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-23 00:00:00 UTC to 2026-03-02 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-03-02 00:00:00 UTC to 2026-03-09 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-03-09 00:00:00 UTC to 2026-03-16 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsMar 9

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Dec 222025-12-22 00:00:00 UTC2025-12-29 00:00:00 UTC110
Dec 292025-12-29 00:00:00 UTC2026-01-05 00:00:00 UTC000
Jan 52026-01-05 00:00:00 UTC2026-01-12 00:00:00 UTC000
Jan 122026-01-12 00:00:00 UTC2026-01-19 00:00:00 UTC101
Jan 192026-01-19 00:00:00 UTC2026-01-26 00:00:00 UTC000
Jan 262026-01-26 00:00:00 UTC2026-02-02 00:00:00 UTC000
Feb 22026-02-02 00:00:00 UTC2026-02-09 00:00:00 UTC000
Feb 92026-02-09 00:00:00 UTC2026-02-16 00:00:00 UTC000
Feb 162026-02-16 00:00:00 UTC2026-02-23 00:00:00 UTC000
Feb 232026-02-23 00:00:00 UTC2026-03-02 00:00:00 UTC000
Mar 22026-03-02 00:00:00 UTC2026-03-09 00:00:00 UTC000
Mar 92026-03-09 00:00:00 UTC2026-03-16 00:00:00 UTC101

What Hacker News says

3 sources
GDSL is written in C++ with use of STL, templates and lambdas, so it's 2600 lines of such C++ source code. There is no self-hosting: neither the LISP compiler nor the C compiler can compile itself. No operating system is implemented, the word kernel in the title means something else. FYI Here is a 700-line subset-of-C compiler which can compile itself: https://github.com/valdanylchuk/xcc700 . FYI The linker and the libc are not included.
In Show HN: GDSL – 800 line kernel: Lisp subset in 500, C subset in 1300

Show HN: Xcc700: Self-hosting mini C compiler for ESP32 (Xtensa) in 700 lines

Repo: https://github.com/valdanylchuk/xcc700 Hi Everyone! I just wrote my first compiler! - single pass, recursive descent, direct emission - generates REL ELF binaries, runnable using ESP-IDF elf_loader - very basic features only, just enough for self-hosting - treats the Xtensa CPU as a stack machine for simplicity, no register allocation / window usage - compilable on Mac, probably also Linux, can cross-compile for esp32 there - wrote for fun / cyberdeck project Sample output from esp32: xcc700.elf xcc700.c -o /d/cc.elf [ xcc700 ] BUILD COMPLETED > OK > IN : 700 Lines / 7977 Tokens > SYM : 69 Funcs / 91 Globals > REL : 152 Literals / 1027 Patches > MEM : 1041 B .rodata / 17120 B .bss > OUT : 27735 B .text / 33300 B ELF [ 40 ms ] >> 17500 Lines/sec << My best hope is that some fork might grow into
Read the rest
a unique nice language tailored to the esp32 platform. I think it is underrated in userland hobby projects.
154 points · Open discussion

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