1 :(before "End Initialize Op Names")
  2 put_new(Name, "cd", "software interrupt (int)");
  3 
  4 :(before "End Single-Byte Opcodes")
  5 case 0xcd: {  // int imm8 (software interrupt)
  6   trace(Callstack_depth+1, "run") << "syscall" << end();
  7   uint8_t code = next();
  8   if (code != 0x80) {
  9     raise << "Unimplemented interrupt code " << HEXBYTE << code << '\n' << end();
 10     raise << "  Only `int 80h` supported for now.\n" << end();
 11     break;
 12   }
 13   process_int80();
 14   break;
 15 }
 16 
 17 :(code)
 18 void process_int80() {
 19   switch (Reg[EAX].u) {
 20   case 1:
 21     exit(/*exit code*/Reg[EBX].u);
 22     break;
 23   case 3:
 24     trace(Callstack_depth+1, "run") << "read: " << Reg[EBX].u << ' ' << Reg[ECX].u << ' ' << Reg[EDX].u << end();
 25     Reg[EAX].i = read(/*file descriptor*/Reg[EBX].u, /*memory buffer*/mem_addr_u8(Reg[ECX].u), /*size*/Reg[EDX].u);
 26     trace(Callstack_depth+1, "run") << "result: " << Reg[EAX].i << end();
 27     if (Reg[EAX].i == -1) raise << "read: " << strerror(errno) << '\n' << end();
 28     break;
 29   case 4:
 30     trace(Callstack_depth+1, "run") << "write: " << Reg[EBX].u << ' ' << Reg[ECX].u << ' ' << Reg[EDX].u << end();
 31     trace(Callstack_depth+1, "run") << Reg[ECX].u << " => " << mem_addr_string(Reg[ECX].u, Reg[EDX].u) << end();
 32     Reg[EAX].i = write(/*file descriptor*/Reg[EBX].u, /*memory buffer*/mem_addr_u8(Reg[ECX].u), /*size*/Reg[EDX].u);
 33     trace(Callstack_depth+| grep -m 1 -o '[0-9][0-9.]\+')
SNAPSHOT_NAME ?= $(NAME)-$(VERSION)-$(shell git rev-parse HEAD | cut -b 1-8).tar.gz
# Find suitable python version (need python >= 2.6 or 3.1):
PYTHON ?= $(shell python -c 'import sys; sys.exit(sys.version < "2.6")' && \
	which python || which python3.1 || which python3 || which python2.6)
SETUPOPTS ?= '--record=install_log.txt'
DOCDIR ?= doc/pydoc
DESTDIR ?= /
PYOPTIMIZE ?= 1
BMCOUNT ?= 5  # how often to run the benchmarks?

CWD = $(shell pwd)

default: compile
	@echo 'Run `make options` for a list of all options'

options: help
	@echo
	@echo 'Options:'
	@echo 'PYTHON = $(PYTHON)'
	@echo 'PYOPTIMIZE = $(PYOPTIMIZE)'
	@echo 'DOCDIR = $(DOCDIR)'

help:
	@echo 'make install: Install $(NAME)'
	@echo 'make doc: Create the pydoc documentation'
	@echo 'make clean: Remove the compiled files (*.pyc, *.pyo)'
	@echo 'make cleandoc: Remove the pydoc documentation'
	@echo 'make snapshot: Create a tar.gz of the current git revision'
	@echo 'make test: Run all unittests.'

install:
	$(PYTHON) setup.py install $(SETUPOPTS) \
		'--root=$(DESTDIR)' --optimize=$(PYOPTIMIZE)

compile: clean
	PYTHONOPTIMIZE=$(PYOPTIMIZE) $(PYTHON) -m compileall -q ranger

clean:
	find . -regex .\*.py[co]\$$ -exec rm -f -- {} \;

doc: cleandoc
	mkdir -p $(DOCDIR)
	cd $(DOCDIR); \
		$(PYTHON) -c 'import pydoc, sys; \
		sys.path[0] = "$(CWD)"; \
		pydoc.writedocs("$(CWD)")'
	rm $(DOCDIR)/test*
	find . -name \*.html -exec sed -i 's|'$(CWD)'|../..|g' -- {} \;

cleandoc:
	test -d $(DOCDIR) && rm -f -- $(DOCDIR)/*.html || true

test:
	@$(PYTHON) test/all_tests.py 1

bm:
	@$(PYTHON) test/all_benchmarks.py $(BMCOUNT)

snapshot:
	git archive --prefix='$(NAME)-$(VERSION)/' --format=tar HEAD | gzip > $(SNAPSHOT_NAME)

.PHONY: default options compile clean doc cleandoc test bm snapshot install