Apple-2-SW/ii-sound
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Don't start opcode sequences with NOPs, the encoder mostly avoids

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these so they just waste space without improving quality.
This commit is contained in:
kris 2020-12-07 20:38:58 +00:00
parent b8de1d4f7b
commit 1cf1ed25bb
1 changed files with 18 additions and 10 deletions
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28
generate_player.py
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@ -53,7 +53,7 @@ def voltage_sequence(
def all_opcodes(
max_len: int, opcodes: Iterable[Opcode]
max_len: int, opcodes: Iterable[Opcode], start_opcodes: Iterable[Opcode]
) -> Iterable[Tuple[Opcode]]:
"""Enumerate all combinations of opcodes up to max_len cycles"""
num_opcodes = 0
@ -61,6 +61,8 @@ def all_opcodes(
found_one = False
for ops in itertools.product(opcodes, repeat=num_opcodes):
ops = tuple(list(ops) + [Opcode.JMP_INDIRECT])
if ops[0] not in start_opcodes:
continue
if sum(len(VOLTAGES[o]) for o in ops) <= max_len:
found_one = True
yield ops
@ -69,9 +71,9 @@ def all_opcodes(
num_opcodes += 1
def generate_player(max_cycles: int, opcodes: List[Opcode],
opcode_filename: str,
player_filename: str):
def generate_player(
max_cycles: int, opcodes: List[Opcode], start_opcodes: List[Opcode],
opcode_filename: str, player_filename: str):
num_bytes = 0
seqs = {}
@ -79,7 +81,7 @@ def generate_player(max_cycles: int, opcodes: List[Opcode],
offset = 0
unique_opcodes = {}
all_ops = sorted(
list(all_opcodes(max_cycles, opcodes)),
list(all_opcodes(max_cycles, opcodes, start_opcodes)),
key=lambda o: len(o), reverse=True)
with open(player_filename, "w+") as f:
@ -130,11 +132,17 @@ def generate_player(max_cycles: int, opcodes: List[Opcode],
if __name__ == "__main__":
generate_player(
max_cycles=17, # TODO: flag
# Opcode.NOP3,
opcodes=[Opcode.NOP, Opcode.STA, Opcode.STAX], # , Opcode.INC,
# Opcode.STAX,
# Opcode.INCX],
max_cycles=19, # TODO: flag
opcodes=[
Opcode.NOP,
Opcode.NOP3,
Opcode.STA,
# Opcode.INC,
# Opcode.INCX
# Opcode.STAX
],
start_opcodes=[Opcode.STA, Opcode.INC, Opcode.INCX, Opcode.STAX,
Opcode.JMP_INDIRECT],
opcode_filename="opcodes_generated.py",
player_filename="player/player_generated.s"
)