Initial commit

.gitignore

@@ -0,0 +1 @@
+build

Makefile

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+O=build
+SRCS=$(shell find src -name "*.c" -type f)
+OBJS=$(SRCS:src/%.c=$(O)/%.o)
+SRC_DIRS=$(shell find src -type d)
+DIRS=$(SRC_DIRS:src/%=$(O)/%) $(O)
+
+all: $(DIRS) $(O)/lisp2
+
+clean:
+	rm -rf $(O)
+
+$(DIRS):
+	mkdir -p $@
+
+$(O)/lisp2: $(OBJS)
+	$(CC) $(LDFLAGS) -o $@ $(OBJS)
+
+$(O)/%.o: src/%.c
+	$(CC) -c $(CFLAGS) -o $@ $<

doc/binfmt.txt

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+0. File header
+...
+
+1. Library linkage section:
+Library entry:
+| Offset | Field       | Description                         |
+|--------+-------------+-------------------------------------|
+| 0x00   | lib_type    | 0 - VM library                      |
+|        |             | 1 - Native library                  |
+| 0x01   | lib_namelen | Library name length                 |
+| 0x02   | lib_name[]  | lib_namelen bytes, teminated by NUL |
+|--------+-------------+-------------------------------------|
+
+2. External reference section:
+Entry:
+| Offset | Field       | Description                                             |
+|--------+-------------+---------------------------------------------------------|
+| 0x00   | ref_type    | 0 - Object symbol                                       |
+|        |             | 1 - Bytecode function                                   |
+|        |             | 2 - Native function                                     |
+| 0x01   | ref_flags   |                                                         |
+| 0x02   | ref_library | Source library                                          |
+| 0x03   | ref_namelen | Length of external symbol name                          |
+| 0x04   | ref_address | For native functions: effective call address            |
+|        |             | For VM objects/funcs: entry index in respective section |
+| 0x0C   | ref_name[]  | Native function symbol name                             |
+|--------+-------------+---------------------------------------------------------|
+
+3. Functions section:
+Function entry:
+| Offset | Field     | Description                                           |
+|--------+-----------+-------------------------------------------------------|
+| 0x00   | fn_argc   | Argument count, 255 means function accepts any number |
+| 0x01   | fn_flags  |                                                       |
+| 0x02   | fn_size   | Function bytecode size                                |
+| 0x04   | fn_data[] | Binary code chunk of fn_size bytes                    |
+|--------+-----------+-------------------------------------------------------|

doc/bytecode.txt

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+Each instruction is 4 bytes
+
+... TBD ...

src/main.c

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+#include <stdio.h>
+
+int main(int argc, char **argv) {
+    return 0;
+}