Initial commit.

.gitignore

@@ -0,0 +1,3 @@
+tmp/
+result.rom
+result.rom.sym

LICENSE

@@ -0,0 +1,5 @@
+Copyright (C) 2025 by bedohswe bedohswe@firemail.cc
+
+Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

Makefile

@@ -0,0 +1,31 @@
+.SUFFIXES: .cc .bc 
+
+CLANG ?= clang
+LLVM_CBE ?= llvm-cbe
+LLVM ?= llvm
+UXNASM ?= uxnasm
+SED ?= sed
+OPT ?= opt
+
+CHIBICC_UXN ?= uxn-chibicc
+
+SRCS = src/main.cc
+
+.cc.bc:
+	$(CLANG) -Os $< -o $*.bc -emit-llvm -c --target=avr -Wno-avr-rtlib-linking-quirks -std=c++20
+
+result.rom: $(SRCS:.cc=.bc) symbols.bc
+	mkdir -p tmp/
+	$(LLVM)-link $(SRCS:.cc=.bc) -o tmp/unopt.bc
+	$(OPT) -Os tmp/unopt.bc -o tmp/unclean.bc
+	$(LLVM)-link --only-needed symbols.bc tmp/unclean.bc -o tmp/linked.bc
+	$(LLVM_CBE) -O2 tmp/linked.bc -o tmp/linked.cbe.c
+	$(CLANG) -x c -P -E -include ./on_link.h tmp/linked.cbe.c -o tmp/linked.i
+	$(CHIBICC_UXN) -O tmp/linked.i > tmp/linked.tal
+	$(SED) -e 's/;_/;U_/g' -e 's/@_/@U_/g' -e 's/ _/ U_/g' -e '/\( bss \)/,/\( data \)/d' tmp/linked.tal > tmp/result.tal
+	$(UXNASM) tmp/result.tal result.rom
+
+all: result.rom
+
+clean:
+	rm -rf src/main.bc $(SRCS:.cc=.bc) tmp/ result.rom result.rom.sym

README.md

@@ -0,0 +1,2 @@
+C++ hello for Uxn.
+Requires [LLVM CBE](https://github.com/JuliaHubOSS/llvm-cbe/), [chibicc for Uxn](https://github.com/lynn/chibicc), clang.

on_link.h

@@ -0,0 +1,7 @@
+#undef __GNUC__
+#define long short
+#define __forceinline
+#define _MSC_VER
+#define const
+#define __declspec(a) 
+#define __assume(a)

src/main.cc

@@ -0,0 +1,9 @@
+#include "uxn.hh"
+void print(char *c) {
+	for (char* i = c; *i != '\0'; i++)
+		deo2(*i, 0x18);
+}
+
+int main(void) {
+	print((char*)"Hello, World!\n");
+}

src/types.hh

@@ -0,0 +1,4 @@
+#ifndef TYPES_HH
+#define TYPES_HH
+typedef decltype(sizeof(0)) size_t; 
+#endif

src/uxn.hh

@@ -0,0 +1,9 @@
+#ifndef UXN_HH
+#define UXN_HH
+extern "C" {
+	void deo(char data, char device);
+	void deo2(int data, char device);
+	char dei(char device);
+	int dei2(char device);
+}
+#endif

symbols.cc

@@ -0,0 +1,5 @@
+int main(void);
+
+extern "C" void* someUselessFunction(void) {
+	return (void*)main;
+}