First iteration

.gitignore

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+build/

bootstrap/entry.S

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+.section .text
+.extern entry_point
+.global _start
+_start:
+    xor %ebp, %ebp
+    popq %rdi
+    mov %rsp, %rsi
+    and $~0xf, %rsp
+    pushq %rsp
+    pushq $0
+    call entry_point
+    mov $231, %eax
+    xor %edi, %edi
+    syscall
+

run.sh

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+#!/bin/sh
+set -ex
+mkdir -p build
+time clang++ \
+-o build/hatch \
+bootstrap/main.cpp \
+bootstrap/entry.S \
+-g \
+-std=gnu++23 \
+-Wall \
+-Wextra \
+-Wpedantic \
+-Wno-nested-anon-types \
+-pedantic \
+-ffreestanding \
+-nostdlib \
+-static \
+-fno-exceptions \
+-fno-stack-protector \
+-ferror-limit=1 \
+`#-ftime-report` \
+-MJ build/compile_commands.json
+gf2 -ex r build/hatch

tests/first/main.nat

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+fn[cc(.c)] main [export] () s32
+{
+    return 0;
+}