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https://github.com/catseye/SixtyPical.git
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Always analyze before compiling.
This commit is contained in:
Chris Pressey
parent
43b3a088b0
commit
ed1ed3eb5d
@ -85,7 +85,6 @@ If one branch trashes {`a`} and the other branch trashes {`b`} then the whole
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### And at some point...
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* Check that the buffer being read or written to through pointer, appears in approporiate inputs or outputs set.
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* always analyze before executing or compiling, unless told not to
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* `interrupt` routines -- to indicate that "the supervisor" has stored values on the stack, so we can trash them.
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* error messages that include the line number of the source code
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* add absolute addressing in shl/shr, absolute-indexed for add, sub, etc.
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@ -27,60 +27,73 @@ from sixtypical.compiler import Compiler
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if __name__ == '__main__':
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optparser = OptionParser(__doc__.strip())
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optparser.add_option("--analyze",
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optparser.add_option("--analyze-only",
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action="store_true",
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help="")
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help="Only parse and analyze the program; do not compile it.")
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optparser.add_option("--basic-prelude",
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action="store_true",
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help="")
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optparser.add_option("--compile",
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action="store_true",
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help="")
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help="Insert a Commodore BASIC 2.0 snippet before the program "
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"so that it can be LOADed and RUN on Commodore platforms.")
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optparser.add_option("--debug",
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action="store_true",
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help="")
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help="Display debugging information when analyzing and compiling.")
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optparser.add_option("--parse-only",
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action="store_true",
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help="Only parse the program; do not analyze or compile it.")
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optparser.add_option("--traceback",
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action="store_true",
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help="")
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help="When an error occurs, display a full Python traceback.")
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(options, args) = optparser.parse_args(sys.argv[1:])
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for filename in args:
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text = open(filename).read()
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parser = Parser(text)
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program = parser.program()
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if options.analyze:
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try:
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analyzer = Analyzer(debug=options.debug)
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analyzer.analyze_program(program)
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except Exception as e:
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if options.traceback:
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raise
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else:
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traceback.print_exception(e.__class__, e, None)
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sys.exit(1)
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if options.compile:
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fh = sys.stdout
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start_addr = 0xc000
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prelude = []
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if options.basic_prelude:
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start_addr = 0x0801
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prelude = [0x10, 0x08, 0xc9, 0x07, 0x9e, 0x32,
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0x30, 0x36, 0x31, 0x00, 0x00, 0x00]
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# we are outputting a .PRG, so we output the load address first
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# we don't use the Emitter for this b/c not part of addr space
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if not options.debug:
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fh.write(Word(start_addr).serialize(0))
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emitter = Emitter(start_addr)
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for byte in prelude:
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emitter.emit(Byte(byte))
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compiler = Compiler(emitter)
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compiler.compile_program(program)
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if options.debug:
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pprint(emitter.accum)
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try:
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parser = Parser(text)
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program = parser.program()
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except Exception as e:
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if options.traceback:
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raise
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else:
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emitter.serialize(fh)
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traceback.print_exception(e.__class__, e, None)
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sys.exit(1)
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if options.parse_only:
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sys.exit(0)
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try:
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analyzer = Analyzer(debug=options.debug)
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analyzer.analyze_program(program)
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except Exception as e:
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if options.traceback:
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raise
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else:
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traceback.print_exception(e.__class__, e, None)
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sys.exit(1)
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if options.analyze_only:
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sys.exit(0)
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fh = sys.stdout
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start_addr = 0xc000
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prelude = []
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if options.basic_prelude:
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start_addr = 0x0801
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prelude = [0x10, 0x08, 0xc9, 0x07, 0x9e, 0x32,
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0x30, 0x36, 0x31, 0x00, 0x00, 0x00]
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# we are outputting a .PRG, so we output the load address first
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# we don't use the Emitter for this b/c not part of addr space
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if not options.debug:
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fh.write(Word(start_addr).serialize(0))
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emitter = Emitter(start_addr)
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for byte in prelude:
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emitter.emit(Byte(byte))
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compiler = Compiler(emitter)
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compiler.compile_program(program)
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if options.debug:
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pprint(emitter.accum)
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else:
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emitter.serialize(fh)
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@ -258,8 +258,8 @@ class Analyzer(object):
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raise TypeMismatchError((src, dest))
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context.assert_meaningful(instr.index)
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elif src.type != dest.type:
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raise TypeMismatchError('%s and %s in %s' %
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(src.name, dest.name, self.current_routine.name)
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raise TypeMismatchError('%r and %r in %s' %
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(src, dest, self.current_routine.name)
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)
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context.assert_meaningful(src)
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context.set_written(dest)
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@ -7,7 +7,7 @@ static analysis rules.
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[Falderal]: http://catseye.tc/node/Falderal
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-> Functionality "Analyze SixtyPical program" is implemented by
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-> shell command "bin/sixtypical --analyze --traceback %(test-body-file) && echo ok"
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-> shell command "bin/sixtypical --analyze-only --traceback %(test-body-file) && echo ok"
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-> Tests for functionality "Analyze SixtyPical program"
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@ -236,7 +236,7 @@ Can't `st` a `word` type.
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| ld a, 0
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| st a, foo
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| }
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? TypeMismatchError: a and foo in main
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? TypeMismatchError
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### tables ###
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@ -7,7 +7,7 @@ SixtyPical to 6502 machine code.
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[Falderal]: http://catseye.tc/node/Falderal
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-> Functionality "Compile SixtyPical program" is implemented by
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-> shell command "bin/sixtypical --basic-prelude --compile %(test-body-file) | tests/appliances/bin/dcc6502-adapter"
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-> shell command "bin/sixtypical --basic-prelude --traceback %(test-body-file) >/tmp/foo && tests/appliances/bin/dcc6502-adapter </tmp/foo"
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-> Tests for functionality "Compile SixtyPical program"
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@ -277,14 +277,16 @@ Compiling `if` without `else`.
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| trashes a, x, y, z, n, c, v
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| {
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| ld a, 0
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| ld y, 0
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| if z {
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| ld y, 1
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| }
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| }
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= $080D LDA #$00
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= $080F BNE $0813
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= $0811 LDY #$01
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= $0813 RTS
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= $080F LDY #$00
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= $0811 BNE $0815
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= $0813 LDY #$01
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= $0815 RTS
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Compiling `repeat`.
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@ -495,7 +497,11 @@ Copy vector to vector.
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Copy routine to vector, inside an `interrupts off` block.
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| vector routine bar
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| vector routine
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| inputs x
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| outputs x
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| trashes z, n
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| bar
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| routine foo
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| inputs x
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@ -506,7 +512,6 @@ Copy routine to vector, inside an `interrupts off` block.
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| }
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| routine main
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| inputs foo
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| outputs bar
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| trashes a, n, z
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| {
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@ -568,13 +573,22 @@ Copy word to word table and back, with both `x` and `y` as indexes.
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Indirect call.
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| vector routine outputs x trashes z, n foo
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| vector routine
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| outputs x
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| trashes z, n
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| foo
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| routine bar outputs x trashes z, n {
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| routine bar
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| outputs x
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| trashes z, n
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| {
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| ld x, 200
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| }
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| routine main inputs bar outputs x, foo trashes a, z, n {
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| routine main
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| outputs x, foo
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| trashes a, z, n
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| {
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| copy bar, foo
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| call foo
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| }
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@ -590,11 +604,18 @@ Indirect call.
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goto.
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| routine bar outputs x trashes z, n {
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| routine bar
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| inputs y
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| outputs x, y
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| trashes z, n
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| {
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| ld x, 200
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| }
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| routine main outputs x trashes a, z, n {
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| routine main
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| outputs x, y
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| trashes a, z, n
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| {
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| ld y, 200
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| goto bar
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| }
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@ -841,39 +862,41 @@ Note that this is *not* range-checked. (Yet.)
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| routine main
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| inputs buf
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| outputs y, foo, delta
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| trashes a, z, n, ptr
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| trashes a, c, v, z, n, ptr
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| {
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| copy 619, delta
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| ld y, 0
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| st off, c
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| copy ^buf, ptr
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| add ptr, delta
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| add ptr, word 1
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| copy [ptr] + y, foo
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| }
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= $080D LDA #$6B
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= $080F STA $1042
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= $080F STA $1043
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= $0812 LDA #$02
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= $0814 STA $1043
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= $0814 STA $1044
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= $0817 LDY #$00
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= $0819 LDA #$41
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= $081B STA $FE
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= $081D LDA #$08
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= $081F STA $FF
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= $0821 LDA $FE
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= $0823 ADC $1042
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= $0826 STA $FE
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= $0828 LDA $FF
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= $082A ADC $1043
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= $082D STA $FF
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= $082F LDA $FE
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= $0831 ADC #$01
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= $0833 STA $FE
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= $0835 LDA $FF
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= $0837 ADC #$00
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= $0839 STA $FF
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= $083B LDA ($FE),Y
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= $083D STA $1041
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= $0840 RTS
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= $0819 CLC
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= $081A LDA #$42
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= $081C STA $FE
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= $081E LDA #$08
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= $0820 STA $FF
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= $0822 LDA $FE
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= $0824 ADC $1043
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= $0827 STA $FE
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= $0829 LDA $FF
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= $082B ADC $1044
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= $082E STA $FF
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= $0830 LDA $FE
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= $0832 ADC #$01
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= $0834 STA $FE
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= $0836 LDA $FF
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= $0838 ADC #$00
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= $083A STA $FF
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= $083C LDA ($FE),Y
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= $083E STA $1042
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= $0841 RTS
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### Trash
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@ -10,7 +10,7 @@ but not necessarily sensible programs.
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[Falderal]: http://catseye.tc/node/Falderal
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-> Functionality "Check syntax of SixtyPical program" is implemented by
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-> shell command "bin/sixtypical %(test-body-file) && echo ok"
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-> shell command "bin/sixtypical --parse-only --traceback %(test-body-file) && echo ok"
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-> Tests for functionality "Check syntax of SixtyPical program"
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