97 lines
4.1 KiB
Python
97 lines
4.1 KiB
Python
table = [
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('00000000000???????????????000010', 'SRL'),
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('00000000000???????????????000000', 'SLL'),
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('00000000000???????????????000011', 'SRA'),
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('000000???????????????00000000100', 'SLLV'),
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('000000???????????????00000000110', 'SRLV'),
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('000000???????????????00000000111', 'SRAV'),
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('000000?????000000000000000001000', 'JR'),
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('000000?????00000?????00000001001', 'JALR'),
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('000000????????????????????001100', 'SYSCALL'),
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('000000????????????????????001101', 'BREAK'),
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('0000000000000000?????00000010000', 'MFHI'),
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('000000?????000000000000000010001', 'MTHI'),
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('0000000000000000?????00000010010', 'MFLO'),
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('000000?????000000000000000010011', 'MTLO'),
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('000000??????????0000000000011000', 'MULT'),
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('000000??????????0000000000011001', 'MULTU'),
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('000000??????????0000000000011010', 'DIV'),
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('000000??????????0000000000011011', 'DIVU'),
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('000000???????????????00000100000', 'ADD'),
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('000000???????????????00000100001', 'ADDU'),
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('000000???????????????00000100010', 'SUB'),
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('000000???????????????00000100011', 'SUBU'),
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('000000???????????????00000100100', 'AND'),
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('000000???????????????00000100101', 'OR'),
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('000000???????????????00000100110', 'XOR'),
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('000000???????????????00000100111', 'NOR'),
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('000000???????????????00000101010', 'SLT'),
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('000000???????????????00000101011', 'SLTU'),
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('000001?????00000????????????????', 'BLTZ'),
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('000001?????10000????????????????', 'BLTZAL'),
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('000001?????00001????????????????', 'BGEZ'),
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('000001?????10001????????????????', 'BGEZAL'),
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('000010??????????????????????????', 'J'),
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('000011??????????????????????????', 'JAL'),
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('000100??????????????????????????', 'BEQ'),
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('000101??????????????????????????', 'BNE'),
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('000110?????00000????????????????', 'BLEZ'),
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('000111?????00000????????????????', 'BGTZ'),
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('001000??????????????????????????', 'ADDI'),
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('001001??????????????????????????', 'ADDIU'),
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('001010??????????????????????????', 'SLTI'),
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('001011??????????????????????????', 'SLTIU'),
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('001100??????????????????????????', 'ANDI'),
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('001101??????????????????????????', 'ORI'),
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('001110??????????????????????????', 'XORI'),
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('00111100000?????????????????????', 'LUI'),
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('01000000000??????????00000000???', 'MFC0'),
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('01000000100??????????00000000???', 'MTC0'),
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('01000010000000000000000000000001', 'TLBR'),
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('01000010000000000000000000000010', 'TLBWI'),
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('01000010000000000000000000001000', 'TLBP'),
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('01000010000000000000000000011000', 'ERET'),
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('011100???????????????00000000010', 'MUL'),
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('100000??????????????????????????', 'LB'),
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('100001??????????????????????????', 'LH'),
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('100011??????????????????????????', 'LW'),
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('100100??????????????????????????', 'LBU'),
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('100101??????????????????????????', 'LHU'),
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('101000??????????????????????????', 'SB'),
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('101001??????????????????????????', 'SH'),
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('101011??????????????????????????', 'SW'),
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('101111?????00000????????????????', 'I-Cache Index Invalid'),
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('101111?????01000????????????????', 'I-Cache Index Store Tag'),
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('101111?????10000????????????????', 'I-Cache Hit Invalid'),
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('101111?????00001????????????????', 'D-Cache Index Writeback Invalid'),
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('101111?????01001????????????????', 'D-Cache Index Store Tag'),
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('101111?????10001????????????????', 'D-Cache Hit Invalid'),
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('101111?????10101????????????????', 'D-Cache Hit Writeback Invalid'),
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]
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class Boolean:
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def __init__(self, x):
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self.x = {'0': -1, '?': 0, '1': 1}.get(x, x)
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def __and__(self, other):
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return Boolean(min(self.x, other.x))
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def __or__(self, other):
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return Boolean(max(self.x, other.x))
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def __invert__(self):
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return Boolean(-self.x)
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def __repr__(self):
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return {-1: '0', 0: 'x', 1: '1'}[self.x]
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for inst, name in table:
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inst = list(Boolean(x) for x in inst[::-1])
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print('=====', name, '=====')
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# print('C0W =', inst[30] & inst[23])
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# print('HLS[2] =', ~inst[27] & ~inst[26] & (~inst[29] & ~inst[30] & ~inst[28] & inst[4] & inst[3] | inst[29] & inst[30]))
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# print('RS0[2] =', ~inst[30] & (inst[29] | inst[26] | ~inst[4]))
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print('DP0 =', ~inst[31] & (~inst[30] | inst[29] | ~inst[25] | inst[4]))
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print('DP1 =', inst[26] | (~inst[30] & (inst[31] | inst[29] | inst[28] | inst[27] | ~inst[4]) | inst[30] & (~inst[29] & inst[25] | inst[3])))
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print()
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