Removed OP_EQ signed versions as they're useless
A negative number under 2s complement can never be equal to its positive as the top bit *must* be on. If two numbers are equivalent bit-by-bit then they are equal for both signed and unsigned numbers.
This commit is contained in:
17
lib/inst.c
17
lib/inst.c
@@ -108,18 +108,9 @@ const char *opcode_as_cstr(opcode_t code)
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case OP_EQ_BYTE:
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return "EQ_BYTE";
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break;
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case OP_EQ_CHAR:
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return "EQ_CHAR";
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break;
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case OP_EQ_INT:
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return "EQ_INT";
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break;
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case OP_EQ_HWORD:
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return "EQ_HWORD";
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break;
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case OP_EQ_LONG:
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return "EQ_LONG";
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break;
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case OP_EQ_WORD:
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return "EQ_WORD";
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break;
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@@ -270,7 +261,7 @@ void data_print(data_t datum, data_type_t type, FILE *fp)
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void inst_print(inst_t instruction, FILE *fp)
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{
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static_assert(NUMBER_OF_OPCODES == 73, "inst_bytecode_size: Out of date");
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static_assert(NUMBER_OF_OPCODES == 70, "inst_bytecode_size: Out of date");
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fprintf(fp, "%s(", opcode_as_cstr(instruction.opcode));
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if (OPCODE_IS_TYPE(instruction.opcode, OP_PUSH))
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{
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@@ -300,7 +291,7 @@ void inst_print(inst_t instruction, FILE *fp)
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size_t inst_bytecode_size(inst_t inst)
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{
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static_assert(NUMBER_OF_OPCODES == 73, "inst_bytecode_size: Out of date");
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static_assert(NUMBER_OF_OPCODES == 70, "inst_bytecode_size: Out of date");
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size_t size = 1; // for opcode
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if (OPCODE_IS_TYPE(inst.opcode, OP_PUSH))
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{
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@@ -324,7 +315,7 @@ size_t inst_bytecode_size(inst_t inst)
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void inst_write_bytecode(inst_t inst, darr_t *darr)
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{
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static_assert(NUMBER_OF_OPCODES == 73, "inst_write_bytecode: Out of date");
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static_assert(NUMBER_OF_OPCODES == 70, "inst_write_bytecode: Out of date");
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// Append opcode
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darr_append_byte(darr, inst.opcode);
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// Then append 0 or more operands
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@@ -398,7 +389,7 @@ data_t read_type_from_darr(darr_t *darr, data_type_t type)
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inst_t inst_read_bytecode(darr_t *darr)
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{
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static_assert(NUMBER_OF_OPCODES == 73, "inst_read_bytecode: Out of date");
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static_assert(NUMBER_OF_OPCODES == 70, "inst_read_bytecode: Out of date");
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if (darr->used >= darr->available)
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return (inst_t){0};
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inst_t inst = {0};
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