mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-23 12:52:46 +00:00
55 lines
1.6 KiB
Python
55 lines
1.6 KiB
Python
print("""// encoding is tssooo
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// t = 0: 32-bit, t = 1: 64-bit
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// ss = 00: reserved
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// ss = 01: 2 components
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// ss = 10: 3 components
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// ss = 11: 4 components
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// ooo = 000: and
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// ooo = 001: or
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// ooo = 010: xor
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// ooo = 011: add.i
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// ooo = 100: nand
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// ooo = 101: nor
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// ooo = 110: xnor
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// ooo = 111: add.f
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""")
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#for vec3
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types = [
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["int", "int", "int", "int", "int", "int", "int", "float"],
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["long", "long", "long", "long", "long", "long", "long", "double"]
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]
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#does not include size (2 or 4, 3 is special)
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vec_types = [
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["ivec", "ivec", "ivec", "ivec", "ivec", "ivec", "ivec", "vec"],
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["lvec", "lvec", "lvec", "lvec", "lvec", "lvec", "lvec", "dvec"]
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]
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operators = ["&", "|", "^", "+"]
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def case_str(type, width, op):
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case = (type << 5) | (width << 3) | (op)
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return f"case {case:03o}:"
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def src_str(type, width, op):
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if width & 1:
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return f"OPA({vec_types[type][op]}{width+1})"
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else:
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return f"OPA({types[type][op]})"
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def dst_str(type, width, op):
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return f"OPC({types[type][op]})"
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def hop_str(type, width, op):
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return f"{'~' if op & 4 and op != 7 else ''}OP_hop{width+1}"
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for type in range(2):
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for width in range(1, 4): # 0 is reserved
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for opcode in range(8):
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case = case_str(type, width, opcode)
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src = src_str(type, width, opcode)
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dst = dst_str(type, width, opcode)
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hop = hop_str(type, width, opcode)
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op = operators[opcode & 3]
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if width == 2:
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print(f"{case} {dst} = {hop} (&{src}, {op}); break;")
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else:
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print(f"{case} {dst} = {hop} ({src}, {op}); break;")
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