101 lines
1.9 KiB
Python
101 lines
1.9 KiB
Python
result = """
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//
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// Generated using code_generating_script.py
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//
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"""
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types = ["S64", "S32", "S16", "S8", "U64", "U32", "U16", "U8", "F32", "F64"]
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operations = [["+", "ADD"], ["-", "SUB"], ["/", "DIV"], ["*", "MUL"], ["%", "MOD"]]
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enum = ["ADD", "SUB", "DIV", "MUL", "MOD", "PUSH"]
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excludes = [["F64", "MOD"], ["F32", "MOD"]]
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#
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# Generate enum
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#
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if False:
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for T in types:
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for op in enum:
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result += f" INS_{op}_{T},\n"
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#
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# Generate utility functions
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#
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if True:
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for T in types:
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t = T.lower()
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result += f"""
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force_inline void
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ins_push_{t}(Bc *b, {T} value){{
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auto data = b->stack_pointer;
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b->stack_pointer += 2*sizeof(U64);
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C({T}, data) = value;
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data += sizeof(U64);
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C(U64, data) = TYPE_{T};
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}}
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force_inline void
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emit_push_{t}(Bc *bc, {T} emit_value){{
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U8 *instruction = (U8 *)arena_push_size(&bc->instructions, sizeof(U8)+sizeof({T}));
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*instruction = INS_PUSH_{T};
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{T} *value = ({T} *)(instruction + 1);
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*value = emit_value;
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}}
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"""
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for symbol, OP in operations:
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op = OP.lower()
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result += f"""
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force_inline void
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emit_{op}_{t}(Bc *bc){{
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U8 *instruction = (U8 *)arena_push_size(&bc->instructions, sizeof(U8));
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*instruction = INS_{OP}_{T};
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}}
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"""
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#
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# Generate switch cases
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#
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if False:
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for T in types:
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t = T.lower()
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for symbol, op_name in operations:
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result += f"""
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case INS_{op_name}_{T}:{{
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{T} l = ins_pop_t(b, {T});
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{T} r = ins_pop_t(b, {T});
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{T} result = l {symbol} r;
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ins_push_{t}(b, result);
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}}break;
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"""
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result += f"""
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case INS_PUSH_{T}:{{
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// Fetch value from instruction
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// instructions are tightly packed so we
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// move pointer by the type size
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auto value = ({T} *)b->ins_pointer;
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b->ins_pointer += sizeof({T});
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ins_push_{t}(b, *value);
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}} break;
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"""
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result += """
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//
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// **End** of generated using code_generating_script.py
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//
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"""
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#
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# Copy to **WINDOWS** clipboard
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#
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import subprocess
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subprocess.run("clip", universal_newlines=True, input=result)
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