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66 lines
2.3 KiB
Python
66 lines
2.3 KiB
Python
import pytest
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from il65.compile import Zeropage, CompileError
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from il65.plyparse import ZpOptions
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from il65.datatypes import DataType
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def test_zp_names():
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zp = Zeropage(ZpOptions.NOCLOBBER)
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zp.allocate("", DataType.BYTE)
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zp.allocate("", DataType.BYTE)
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zp.allocate("varname", DataType.BYTE)
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with pytest.raises(AssertionError):
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zp.allocate("varname", DataType.BYTE)
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zp.allocate("varname2", DataType.BYTE)
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def test_zp_noclobber_allocation():
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zp = Zeropage(ZpOptions.NOCLOBBER)
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assert zp.available() == 9
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with pytest.raises(CompileError):
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zp.allocate("impossible", DataType.FLOAT) # in regular zp there aren't 5 sequential bytes free
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for i in range(zp.available()):
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loc = zp.allocate("bytevar"+str(i), DataType.BYTE)
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assert loc > 0
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assert zp.available() == 0
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with pytest.raises(CompileError):
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zp.allocate("", DataType.BYTE)
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with pytest.raises(CompileError):
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zp.allocate("", DataType.WORD)
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def test_zp_clobber_allocation():
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zp = Zeropage(ZpOptions.CLOBBER)
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assert zp.available() == 239
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loc = zp.allocate("", DataType.FLOAT)
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assert loc > 3 and loc not in zp.free
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num, rest = divmod(zp.available(), 5)
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for _ in range(num-3):
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zp.allocate("", DataType.FLOAT)
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assert zp.available() == 19
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with pytest.raises(CompileError):
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zp.allocate("", DataType.FLOAT) # can't allocate because no more sequential bytes, only fragmented
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for _ in range(14):
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zp.allocate("", DataType.BYTE)
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zp.allocate("", DataType.WORD)
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zp.allocate("", DataType.WORD)
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with pytest.raises(CompileError):
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zp.allocate("", DataType.WORD)
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assert zp.available() == 1
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zp.allocate("last", DataType.BYTE)
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with pytest.raises(CompileError):
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zp.allocate("impossible", DataType.BYTE)
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def test_zp_efficient_allocation():
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# free = [0x04, 0x05, 0x06, 0x2a, 0x52, 0xf7, 0xf8, 0xf9, 0xfa]
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zp = Zeropage(ZpOptions.NOCLOBBER)
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assert zp.available() == 9
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assert 0x2a == zp.allocate("", DataType.BYTE)
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assert 0x52 == zp.allocate("", DataType.BYTE)
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assert 0x04 == zp.allocate("", DataType.WORD)
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assert 0xf7 == zp.allocate("", DataType.WORD)
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assert 0x06 == zp.allocate("", DataType.BYTE)
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assert 0xf9 == zp.allocate("", DataType.WORD)
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assert zp.available() == 0
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