Apple-2-Tools/applepy
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Merge pull request #11 from ghewgill/cassette

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Cassette
This commit is contained in:
James Tauber 2011-08-16 03:59:27 -07:00
commit 6f1005693c
1 changed files with 36 additions and 5 deletions
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applepy.py
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@ -9,6 +9,7 @@ import struct
import subprocess
import sys
import time
import wave
class Display:
@ -288,12 +289,33 @@ class Speaker:
self.play()
class Cassette:
def __init__(self, fn):
wav = wave.open(fn, "r")
self.raw = wav.readframes(wav.getnframes())
self.start_cycle = 0
self.start_offset = 0
for i, b in enumerate(self.raw):
if ord(b) > 0xA0:
self.start_offset = i
break
def read_byte(self, cycle):
if self.start_cycle == 0:
self.start_cycle = cycle
offset = self.start_offset + (cycle - self.start_cycle) * 22000 / 1000000
return ord(self.raw[offset]) if offset < len(self.raw) else 0x80
class SoftSwitches:
def __init__(self, display, speaker):
def __init__(self, display, speaker, cassette):
self.kbd = 0x00
self.display = display
self.speaker = speaker
self.cassette = cassette
def read_byte(self, cycle, address):
assert 0xC000 <= address <= 0xCFFF
@ -320,6 +342,9 @@ class SoftSwitches:
self.display.lores()
elif address == 0xC057:
self.display.hires()
elif address == 0xC060:
if self.cassette:
return self.cassette.read_byte(cycle)
else:
pass # print "%04X" % address
return 0x00
@ -327,10 +352,10 @@ class SoftSwitches:
class Apple2:
def __init__(self, options, display, speaker):
def __init__(self, options, display, speaker, cassette):
self.display = display
self.speaker = speaker
self.softswitches = SoftSwitches(display, speaker)
self.softswitches = SoftSwitches(display, speaker, cassette)
args = [
sys.executable,
@ -391,6 +416,7 @@ def usage():
print >>sys.stderr
print >>sys.stderr, "Usage: applepy.py [options]"
print >>sys.stderr
print >>sys.stderr, " -c, --cassette Cassette wav file to load"
print >>sys.stderr, " -R, --rom ROM file to use (default A2ROM.BIN)"
print >>sys.stderr, " -r, --ram RAM file to load (default none)"
print >>sys.stderr, " -q, --quiet Quiet mode, no sounds (default sounds)"
@ -400,6 +426,7 @@ def usage():
def get_options():
class Options:
def __init__(self):
self.cassette = None
self.rom = "A2ROM.BIN"
self.ram = None
self.quiet = False
@ -408,7 +435,10 @@ def get_options():
a = 1
while a < len(sys.argv):
if sys.argv[a].startswith("-"):
if sys.argv[a] in ("-R", "--rom"):
if sys.argv[a] in ("-c", "--cassette"):
a += 1
options.cassette = sys.argv[a]
elif sys.argv[a] in ("-R", "--rom"):
a += 1
options.rom = sys.argv[a]
elif sys.argv[a] in ("-r", "--ram"):
@ -429,6 +459,7 @@ if __name__ == "__main__":
options = get_options()
display = Display()
speaker = None if options.quiet else Speaker()
cassette = Cassette(options.cassette) if options.cassette else None
apple = Apple2(options, display, speaker)
apple = Apple2(options, display, speaker, cassette)
apple.run()